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Test Code : LOT-402
Test designation : Administering IBM Connections 4.0
Vendor designation : IBM
: 137 real Questions

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Administering IBM Connections 4.0 book

IBM records Studio | LOT-402 real Questions and VCE practice Test

This chapter is from the e-book 

IBM facts Studio is protected in every DB2 edition. IBM statistics Studio offers a unique built-in environment for database administration and utility building. you could operate initiatives which are regarding database modeling and design, developing database purposes, administering and managing databases, tuning SQL performance, and monitoring databases complete in one unique device. it's a terrific device that can drastically odds a team atmosphere with different roles and obligations.

IBM data Studio is available in three favors: replete customer, administration customer, and net console.

the entire client includes both the database administrative and the application pile capabilities. The construction atmosphere is Eclipse-based. This offers a collaborative development ambiance by using integrating with different advanced Eclipse-based tools such as InfoSphere facts Architect and InfoSphere Optim pureQuery Runtime. note that one of the crucial superior InfoSphere tools are best protected within the DB2 superior variations and the DB2 Developer edition. you can furthermore one at a time buy the advanced equipment.

The administration client is a subset of the entire customer. It nevertheless offers a wide compass of database administrative functionality equivalent to DB2 illustration management, remonstrate administration, information administration, and question tuning. basic utility pile initiatives similar to SQL Builder, question formatting, visual clarify, debugging, editing, and operating DB2 routines are supported. expend the replete client for advanced application construction aspects.

The internet console, as the designation implies, it's an internet-based browser interface that gives health monitoring, job management, and connection administration.

IBM facts Studio Workspace and the chore Launcher

in case you gain correctly allot in the IBM facts Studio, you're requested to deliver a workspace name. A workspace is a folder that saves your work and tasks. It refers back to the computer pile ambiance, which is an Eclipse-based mostly thought.

task Launcher is displayed, which highlights the following class of initiatives:

  • Design
  • develop
  • Administer
  • Tune
  • video display
  • each and every class is described in additional aspect in its own tab. click on any tab, and you see the essential thing and first initiatives listed in the container on the left. see device 4.26 to collect a concept on a course to navigate the project Launcher.

    as an instance, the device shows you the enhance initiatives. you could learn the essential thing development projects on the left. On the excellent appropriate, it lists extra tasks related to development. On the bottom correct, IBM information Studio provides just a few documentation links the plot you can study greater about development. the plot acceptable, it furthermore suggests the superior outfit purchasable in the InfoSphere Optim portfolio that ensue to the chore you gain selected.

    Connection Profiles

    every chore you had been to operate against a database requires to first establish a database connection. To connect with a database from IBM facts Studio, open the Database Administration viewpoint. On the accurate perquisite corner, click on the Open standpoint icon and select Database Administration.

    On the Administration Explorer, right-click on the white house or below the new menu, opt for New Connection to a database. From the new Connection window, you see that you can expend the IBM statistics Studio to connect with different IBM information sources, in addition to non-IBM statistics sources. select the database supervisor and enter the integral connection parameters. determine four.28 shows an illustration.

    Figure 4.27

    figure four.27 Open the Database Administration point of view

    Pull down the JDBC driver drop-down menu, and you'll select the classification of JDBC driver to Make expend of. JDBC category four driver is used by course of default.

    Use the check Connection button to subsist certain the connection counsel you enter is legitimate. click on conclude.

    At this factor, you've got created a connection profile. Connection profiles embrace tips about the course to hook up with a database equivalent to indicating the category of authentication for expend when connecting the database, specifying default schema, and configuring tracing alternate options. different crew contributors can import the connection profiles to their own IBM information Studio and subsist capable of deploy a group of constant connection settings.

    To update the connection profile, appropriate-click on the database and select houses. residences for the database are displayed as shown in determine 4.29.

    regular Database Administration tools

    There are few other helpful administration initiatives attainable in the menu illustrated in determine four.29.

    The maneuver Connection feature allows you to rename the connection profile, delete the connection profile, trade the user identity and password, and duplicate the profile. The again Up and repair feature enables you to setup a database or desk area backups. in the preempt editor, that you would subsist able to specify the classification of backup, location of the backup photographs, and efficiency alternatives for the backup. Database backup and recovery is discussed in Chapter 10, “maintaining, Backing Up, and improving records.”

    The installation and Configure feature allows you to configure the database. Database configuration and this IBM statistics Studio characteristic are coated in detail in Chapter 5. subsist alert from the menu, you can launch the Configure automatic maintenance editor. DB2 provides computerized preservation capabilities for performing database backups, reorganizing tables and indexes, and updating the database information as imperative. The editor enables you customise the computerized protection policy (see device four.30).

    Figure 4.30

    determine 4.30 select the automated preservation policy alternate options

    The maneuver Database characteristic makes it feasible for you to nascence and forestall the database. In DB2, that means activating and deactivating the database. Activating a database allocates complete the quintessential database memory and features or techniques required. Deactivating a database releases the memory and stops DB2 features and approaches.

    The panoply screen duty launches the IBM statistics Studio internet Console. debate with the area, “IBM statistics Studio web Console,” for introduction of the tool.

    The Generate DDL feature makes expend of the DB2 command-primarily based tool db2look to extract the information Definition Language (DDL) statements for the identified database objects or the complete database. This feature and gear approach effortless when you wish to mimic a database, a collection of database objects, or the database statistics to an extra database. on account of the Generate DDL duty in IBM information Studio or the DB2 command db2look, you receive a DDL script. The script contains statements to re-create the database objects you gain chosen. see determine 4.31 for a reference of the kinds of statements you can generate the expend of the IBM statistics Studio.

    Figure 4.31

    determine 4.31 Generate DDL duty in the IBM statistics Studio

    For complete alternatives for the DB2 command db2look, parley with the DB2 counsel core.

    The birth Tuning duty configures the database to permit query tuning. You could obtain a warning indicating that you simply should set off the InfoSphere Optim question Workload Tuner (OQWT) license for advanced tuning ability. notice that IBM DB2 advanced commercial enterprise Server edition comes with OQWT. comply with the instructions to celebrate the product license or click on yes to configure the database server for tuning with the points complementary within the IBM data Studio.

    When the database is configured to expend the tuning advisors and equipment, you are introduced with the query Tuner Workflow Assistant, as shown in determine four.32.

    From the query Tuner Workflow Assistant, that you can obtain a press release from a variety of sources and tune the observation. in the trap view, it gives you a listing of sources where you could seize the statements. determine four.33 suggests an case on shooting the SQL statements from the package Cache. This instance captures over one hundred statements. right-click on the commentary by which you are interested and select panoply SQL commentary or rush Single-query Advisors and tools on the selected statement.

    Run the query advisors and tools on the selected remark. you could now enter the Invoke view. The device collects guidance and facts and generates a data access contrivance (see determine four.34).

    When the question tuning activities are complete, you are brought to the assessment view. It presents you the evaluation consequences and an consultant suggestion, such as the one shown in determine 4.35. The device documentation recommends gathering and re-amassing complete of central records of the query.

    you could furthermore overview the access contrivance graph generated through the DB2 define duty (see determine 4.36 for an instance). subsist alert to shop the evaluation for future references and evaluate them if crucial.

    The control Privileges duty allows you to provide database privileges to the clients. check with Chapter eight, “imposing security,” for details about privileges and database access controls.

    prevalent Database pile tools

    IBM records Studio consolidates the database administration and database pile capabilities. From the assignment Launcher – increase, you learn a listing of key development projects similar to developing and working SQL statements, debugging saved methods, and consumer-described capabilities (UDFs). every chore brings you to a tool that helps you accomplish it.

    SQL and XQuery Editor

    The SQL and XQuery editor helps you create and rush SQL scripts that contain more than one SQL and XQuery statements. To launch the editor, open the statistics mission Explorer; under SQL Scripts select New > SQL or XQuery Script. As proven in determine 4.37, a pattern SQL script is entered. that you may configure the rush options for the script.

    The editor formats the SQL statements nicely and offers syntax highlights for easier reading as you enter the SQL statements. The functionality content assist is furthermore very beneficial. It lists the entire latest schemas within the database so that you can just opt for one from the drop-down menu. The editor furthermore parses the commentary and validates the remark syntax. you can validate the syntax in scripts with distinctive database parsers and rush scripts in opposition t discrete database connections.

    SQL query Builder

    The SQL question Builder permits you to create a unique SQL statement, but it surely doesn't cheer XQuery. as the identify implies, the tool helps you build an SQL remark. It helps you look to subsist at the underlying database schema or build an expression, as proven in determine 4.38.

    Database Routines Editor and Debugger

    saved procedures and person-defined services (UDFs) are database application objects that encapsulate application top-notch judgment at the database server instead of in software-degree code. expend of application objects back in the reduction of overhead of SQL statements and the effects which are handed during the network. saved strategies and UDFs are furthermore referred to as routines. IBM information Studio supports routines construction and debugging.

    From the statistics mission Explorer, create a new data pile venture. within the project, that you would subsist able to create a number of sorts of database utility objects reminiscent of saved techniques and UDFs (see device four.39). To debug a activities, appropriate-click on the movements and select Debug.

    Former IBM Chairman's next move: Reinventing the global organisation | LOT-402 real Questions and VCE practice Test

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    Probing IBM's Nazi connection | LOT-402 real Questions and VCE practice Test

    with the aid of Paul Festa body of workers creator, CNET information.com June 28, 2001, 4:00 a.m. PT

    due to the fact that its bespeak in February, Edwin Black's ebook "IBM and the Holocaust: The Strategic Alliance Between Nazi Germany and america's most powerful traffic enterprise" has stirred unparalleled controversy among college students of the Holocaust, American enterprise and guidance expertise.

    On the booklet's liberate, Holocaust survivors filed retract well with towards IBM for its alleged duty within the Holocaust; Gypsies previous this month threatened their personal lawsuit.

    notwithstanding the first retract well with turned into withdrawn and the second has yet to subsist filed, a entire bunch of critics and historians gain weighed in in opposition t the company, with others coming to its defense. The compass of the controversy can subsist gleaned from the pages of BusinessWeek on my own, which in a March evaluate excoriated the "illogical, overstated, padded, and sloppy" e-book for fostering "a new fantasy--the automatic Holocaust," and in an April commentary talked about the "enlightening" booklet "should still subsist required studying for each first-yr MBA pupil."

    at the coronary heart of Black's argument is that information expertise--in the sort of IBM's Hollerith punch-card machines--offered the Nazis with a different and significant device in their project of cataloguing and dispatching their hundreds of thousands of victims.

    as the publication's title suggests, Black attempts to establish that IBM did not in simple terms vend its products to Hitler--as did many American agencies--but maintained a strategic alliance with the Third Reich during which it licensed, maintained and custom-designed its products for expend within the machinery of the Holocaust.

    IBM has answered to questions on its relationship with the Nazis mostly by means of characterizing the counsel as historical news.

    "The undeniable fact that Hollerith outfit manufactured by course of (IBM's German unit) Dehomag turned into used by course of the Nazi administration has long been customary and is not new suggestions," IBM representative Carol Makovich wrote in an e-mail interview. "This information become published in 1997 in the IEEE Annals of the background of Computing and in 1998 in Washington Jewish Week."

    Watson and members of the ICC board meet with Hitler in 1937. IBM additionally keeps, in a February commentary to which it refers most questions about the count, that the Nazis took manage of its German unit before and perquisite through the struggle, and that the enterprise "doesn't gain a top-notch deal guidance about this length or the operations of Dehomag." Black vehemently disputes both claims.

    IBM furthermore defended Chairman Thomas Watson for his dealings with Hitler and his regime.

    "As chairman of a massive international traffic and a robust supporter of exotic trade, he met and corresponded with senior govt officials from many, many international locations, Hitler and Germany amongst them, in the 1930s," Makovich wrote. "so far as they recognize, the character of the contacts between IBM executives and German government officers complete through the Nineteen Thirties gain been corresponding to these with other government officers in other countries and according to IBM practices in the quite a lot of nations in which the enterprise did company complete over that period."

    CNET information.com's Paul Festa mentioned the considerations with Black in a recent interview.

    Q: What first received you attracted to this field? A: when I first went to the U.S. Holocaust Memorial Museum in Washington, D.C., I went with my folks, each of whom are Holocaust survivors. the primary aspect you see in the Holocaust museum is IBM's Hollerith tabulator. And on the entrance of the Hollerith is a mountainous nameplate: IBM. For me these two words, IBM and Holocaust, did not compute.

    i was actually frozen for some time staring at the desktop, considering of IBM and looking out lower back at the map of Europe. and then it got here to me. they now gain investigated the militia intelligence, the diplomatic dispatches, the fiscal dealings, and the specific mechanisms of genocide, but no person has yet explored assistance know-how. indeed, until the present age in which they locate ourselves, the laptop Age, where we've an realizing that tips technology can Make the pivotal contrast in any shove of peace or persecution--until the laptop Age, they couldn't even formulate the questions.

    How did you retract about gaining learning of IBM's position? We assembled a crew of 100, including researchers, historians, translators, archivists, children of Holocaust survivors, and World combat II intelligence people. They worked in seven international locations in some 50 archives and yielded 20,000 files, which I equipped and go-listed. Then some 35 historians reviewed every line of my manuscript before booklet.

    IBM engineered a strategic  traffic alliance...extending  perquisite through the war that endowed the Hitler regime with the technology and the tools it needed to expedite...all six phases of Hitler's war against the Jews. but I ultimately assembled this darkish confound that had eluded the 15 million individuals who gain seen this computing device in the Holocaust museum. I eventually linked the dots. and those dots are that IBM engineered a strategic enterprise alliance and joint planning software with Nazi Germany from the very first moment in 1933 and increasing complete the course through the warfare that endowed the Hitler regime with the expertise and the outfit it crucial to expedite and, in lots of techniques, automate, complete six phases of Hitler's battle towards the Jews. these six phases are identification, expulsion, confiscation, ghettoization, deportation and subsequently even extermination.

    5 years in the past I started working on this critically and two years in the past went 24/7 with the team of a hundred. I spent these first years within the challenge finding out that almost nothing's been written on IBM's position in the Holocaust. indeed, lots of the documents and statistics I organize out issue to subsist boring, innocuous corporate particulars. it subsist handiest when juxtaposed with different facts from different nations and archives that these shards of glass approach collectively to kindly this heartbreaking photograph window, exposing the huge vista of IBM's global relationship with Nazi Germany.

    IBM claims that its German subsidiary came below Nazi control both before and perquisite through World battle II. We're no longer simply talking about the German subsidiary. We're speakme concerning the Swiss, the Swedish, the Italian, the Spanish, the Polish, the Romanian and Brazilian subsidiaries--more than 20 subsidiaries observed throughout Europe and somewhere else. This became, really, a worldwide commitment via IBM to back the Hitler machine because it conquered Europe and as it destroyed ethnic peoples: Gypsies, Jews and others.

    IBM would wish to boom they lost maneuver of their German subsidiaries. it truly is obviously false. Thomas Watson and the manhattan workplace micromanaged every aspect of their subsidiaries in Europe and particularly in Germany, their most profitable exotic operation. The long island office became privy to complete makes expend of for his or her machines in Germany and Nazi-occupied Europe from the second Hitler came to punch in 1933 until concerning the tumble of 1941, two years after World combat II begun.

    bear in mind, IBM customized-designed the machines, customized-designed the purposes and custom-printed the punch cards. there were no common punch cards or computer wiring. classes to establish Jews, Jewish bank money owed, barrels of oil, Luftwaffe flights, welfare payments, educate schedules into camps, and even the attention camp suggestions--all these had to subsist tailor-made for each application.

    Even after the us entered the war, when the Nazis appointed the custodian, complete of the accustomed IBM managers were in vicinity. The Reich simply locked the earnings for a few years just as any receiver would subsist for any company in receivership. IBM collected complete of the cash after the conflict.

    Do you gain got examples following the birth of World war II in 1939? analyze some statistics. In September 1939, Germany invades Poland. or not it's a bloody, heinous invasion. The rape of Poland became favourite everywhere. The hunger and brutalization of the Polish individuals was page 1 information complete over, together with The long island times. warfare had been estimated for years. It became no shock.

    On September 13, 1939, The ny instances experiences on page 1 that three million Jews are going to subsist "immediately removed" from Poland, and that they contemplate relish candidates for "physical extermination." On September 9, the German managers of IBM Berlin ship a epistle to Thomas Watson with reproduction to workforce in Geneva via phone that, because of the "situation," they requisite high-pace alphabetizing gadget. IBM wanted no paper trail, so an oral settlement become made, handed from new york to Geneva to Berlin, and people alphabetizers gain been accepted with the aid of Watson, for my part, before the discontinue of the month.

    That month he furthermore authorised the opening of a brand new Europe-extensive school for Hollerith technicians in Berlin. And at the equal time he approved a new German-primarily based subsidiary in occupied Poland, with a printing plant throughout the street from the Warsaw Ghetto at 6 Rymarska road. It produced some 15 million punch cards at that location, the essential customer of which changed into the railroad.

    we now gain a similar illustration involving Romania in 1941, and The Sunday times has really placed the IBM files up on their web web site. you could collect to the URL via EdwinBlack.com at either reports or Media. When Nazi Germany went into France, IBM built two new factories to deliver the Nazi struggle computing device. this is the 1941-'42 period, in Vichy, France, which was technically impartial. When Germany invaded Holland in may additionally 1940, IBM rushed a brand-new subsidiary into occupied Holland. And it even despatched 132 million punch cards in 1941, notably from mountainous apple, to back the Nazi endeavor there. Holland had the highest fee of Jewish extermination in complete of Europe; 72 p.c of Jews gain been killed in Holland, compared to 24 % in France, the plot the machines didn't operate successfully.

    What exactly did the Nazis want IBM's gadget for? When Hitler got here to vigour in 1933, his requisite to raze European Jewry turned into so bold an business, it required the elements of a laptop. but in 1933 no desktop existed. What did exist was the Hollerith punch-card system. It became invented via a German-American in Buffalo, mountainous apple, for the Census Bureau. This punch-card outfit may retain the entire suggestions about individuals, areas, products, inventories, schedules, in the holes that were punched or not punched in columns and rows.

    here is the identical technology they saw in Florida within the presidential election. The Hollerith device reduced every thing to number code. Over time, the IBM alphabetizers may transfigure this code to alphabetical assistance. IBM made constant improvements for his or her Nazi purchasers.

    American entry into the warfare

    What became IBM's involvement with the Nazis once the us had entered the battle? In October of '41, the entire world knew the us turned into about to enter the war. They had been preparing to enter when you respect that 1933, debating it. combat fever became most violent from 1937. The question turned into at complete times, "will they stay out of the struggle?" no one knew precisely when. Their entry turned into of course precipitated by using the bombing of Pearl Harbor on December 7. almost immediately before that, with sudden new buying and selling-with-the-enemy regulations in force--here is October 1941--Watson issued a cable to complete IBM's European subsidiaries, asserting in effect: "do not reiterate us what you are doing and carry out not request us any questions." He did not say, "do not ship machines into concentration camps." He failed to say, "stop organizing the defense constrain forces of Nazi Germany." He did not say, "don't undertake anything else to harm innocent civilians."

    IBM would want to  boom they lost control of their German subsidiaries. That's malarkey. They never lost control. He then bifurcated the administration of IBM Europe--one supervisor in Geneva, named Werner Lier, and the different one in ny, in his office, named J.L. Schotte. So complete communications went from Switzerland to mountainous apple. in the discontinue there turned into a Hollerith department called Hollerith Abteilung--German for department--in just about each concentration camp. subsist aware, the original Auschwitz tattoo turned into an IBM number.

    Watson stopped complete communications with Nazi Germany without delay. And in factor of reality, he danced on the top of a pin to obey U.S. law. It become the felony participation in genocide--criminal since it become pursued through exotic subsidiaries from 1942 to 1945.

    Do you contend that IBM played a chore past the concentration camps--that it turned into a portion of the German battle application in opposition t the U.S. and other allies? IBM's position in organizing the German war machine is smartly documented within the e-book. IBM allot the blitz in blitzkrieg. The entire war application was equipped on Hollerith machines from 1933 to 1945. this is when assistance expertise comes to conflict. at the identical time, IBM became aiding the entire German struggle computer directly from long island unless the autumn of 1941, and thru its exotic places subsidiaries thereafter, massive Blue became assisting the Allied struggle computer to the hilt.

    IBM become in can pervade of the draft. IBM became one of the crucial few backyard the Pentagon who knew the exact date of the Normandy invasion; they had been calculating the weather. IBM machines broke the Enigma Code. a lot of what may carry out with a computer complete through the late twentieth century can subsist carried out with Hollerith machines, however slower.

    Describe your relationship with IBM as you had been discovering this e-book. when I first contacted IBM, I referred to i'd partake complete my documentation with them and, in exchange, i would want to see their archive. at the beginning, i used to subsist accredited. The PR individuals overruled the archivist, Paul Lasewicz. Then a group of historians wrote to IBM CEO Lou Gerstner, worrying I subsist allowed entry and calling IBM's refusal an obstruction of Holocaust background.

    in plot of cancel the documents, IBM observed it turned into giving them to "an tutorial establishment" for study. but the plot did these documents approach to be? now not the Holocaust Museum in Washington, no longer the heart for Jewish inheritance in manhattan, no longer the American Jewish Archives in Cincinnati. An IBM PR man gave them to long island school, to a Biblical archaeologist. They gave them to professor Lawrence Schiffman, a useless Sea Scrolls professional. He had six bins in his closet, untutored of what changed into in them. but he became well-known with my prior Holocaust work and instantly arranged to let me see the materials.

    I furthermore arranged to view files in Stuttgart, and IBM blocked that and closed the facility the day I bought there. When celebrate bought out about my booklet they transferred those Stuttgart documents to an archive in Germany, however they cannot subsist viewed unless some problematic inventory is completed.

    IBM nonetheless refuses to open archives regarding France, Holland, Brazil, Poland, Italy and Spain, and other units. In different phrases, complete their archives are nevertheless closed. As I told IBM company PR, "Make me work difficult, Make me work harder, i will subsist able to collect complete this suggestions."

    Is your analysis ongoing, or is that this case closed as far as you are worried? i'm consistently getting new tips. simply a pair of days in the past, I acquired mind-blowing documents from Poland about some thing known as the Hollerith Gruppe. These gain been unveiled on June 25 to scholars at the Leo Baeck Institute in ny. The Hollerith Gruppe equipped each factor of Polish existence and Jewish existence. These Krakow machines depended upon a assured deliver of millions of punch cards. The Hollerith machines did far more than establish americans.

    My bespeak is not about census. The machines additionally ran the railroads. They organized the "extermination by course of labor" campaign, where individuals gain been worked to loss of life based on their job competencies and location. Slaves gain been shuttled from vicinity to location based on Hollerith move-tabulations. tens of millions and hundreds of thousands of people went through Nazi attention camps throughout the 12-yr Reich. but on the peak of the Hitler regime, the entire camp potential was three to 5 hundred thousand. that's excellent traffic administration. After book, they furthermore obtained the names of prisoners IBM expert to work within the extermination through labor software, and they organize that a two-story constructing at Dachau nevertheless standing is the Hollerith constructing the plot as a minimum two dozen machines were stationed. basically, there is reasonably a bit of, and it complete most effectual deepens the documentation.

    IBM: Muted response

    How has IBM responded to your booklet? With virtual silence and an initial press liberate designed to befuddle individuals. First the company spoke of they hadn't study the e-book, but on the equal time it preeminent there turned into nothing new in the book. can't gain it each approaches. My publication became 5 weeks on the most desirable-vendor list, and they preeminent they hadn't study it practically two months after e-book. And yet IBM PR declined to Make a press release when requested via Public Radio in Washington. That introductory commentary, incidentally, claimed historians gain well-liked about this for decades. it is not proper. There isn't a unique publication or scholarly paper anyplace in existence that even mentions the Hollerith arm in concentration camps. This homicide outfit was unknown.

    IBM   allot the blitz in blitzkrieg. The  entire war  application was organized on Hollerith machines. IBM PR additionally observed the enterprise lost control of their German subsidiary when the Nazis got here to vigor. that's absolutely false. The e-book costs the incidents chapter and verse.

    The architect of IBM's denial of Holocaust involvement is PR manager Carol Makovich. She has developed a carefully crafted, private, 12-page memo that she faxes or e-mails to reviewers and writers. CNET got a replica. There are a number of aged historians who are skeptical about the ebook. They don't understand the punch of relational databases, and counsel expertise confuses them. IBM prices this handful, hoping that message will gain an sequel on newshounds on time limit. they gain certainly acquired about six detestable experiences in newspapers, but additionally about 380 superb ones through the world. as a minimum a hundred of those laudatory reviews are up on my web web page. IBM won't even deny a unique veracity in my book. They simply hope the field will retract away. It might not.

    On Holocaust Day, in April of this yr, an article ran in about 20 papers across the U.S. aphorism that IBM requisite to request for forgiveness, that IBM should still learn from its past and open archives. but IBM refuses to open the archives and confront its own previous. I suppose IBM's corporate PR has given ruinous counsel to IBM about managing this. no one wishes liable the present IBM for what took plot 60 years in the past. Why not simply approach clean and circulation on?

    What carry out you assume bills for IBM's association with the Nazis? What become their motivation? It become in no course about the Nazism. It was under no circumstances concerning the anti-Semitism. It became most effectual in regards to the cash. They failed to abominate Poles once they spread out a subsidiary in battle-torn Poland. They failed to abominate the Dutch when they opened up the subsidiary in Holland simply earlier than the Nazis moved in, or the French once they ramped up the subsidiary in occupied France. They didn't abominate the Brits or the americans when Hollerith machines were used to goal the V2 rockets. It wasn't very own--it became just enterprise.

    Why unique out IBM out of the entire other agencies, American and otherwise, that did traffic with the Nazis? I haven't singled any one out. IBM changed into nearly the most effectual organization of punch-card expertise. there gain been many americans imparting oil, presenting weapons. It wasn't me who singled IBM out. IBM uncommon itself as the preeminent provider of this particular expertise and sued any traffic which tried to horn in on their earnings circulation. complete through the struggle, IBM litigated in opposition t Bull in France, Powers in Europe, and even sued the German printer Euler in 1942, making an attempt to desist them from printing cards.

    IBM is circulating a evaluate with the aid of The mountainous apple times that argues you failed to "display that IBM bears some entertaining or conclusive accountability for the evil that turned into carried out." What's your response to that remark? The gentleman who wrote that review is a companionable commentator--he isn't a historian. He simply wasn't bound. No issue. but some 380 reviews up to now gain spoke of that they now gain certainly made their case, and many historians and other specialists expend the term "ironclad" and "incontrovertible." truly, 35 leading historians and Holocaust experts unanimously endorsed the ebook and its findings on the date of booklet. And their feedback are up on my web website. i mull why IBM does not flux into the experiences of Newsweek, The Washington publish, Midstream, The Sunday times, and dozens greater. it's unhappy.

    IBM best had a discrete and conclusive role for what they gain been worried in. There become a clear change between trading with the enemy, which many corporations engaged in, and the strategic alliance and joint planning shove that IBM engaged in. as an example, average Oil deliberate and built a complete petroleum give line for Nazi Germany and provided it well into the war--during the battle. however Hitler knew concerning the combustion engine and about gas earlier than regular Oil ever sold him fuel. A British company was promoting uniforms to the Third Reich. Hitler knew the course to sew a uniform.

    IBM did greater than just sell machine. Watson and IBM controlled the pleasing technical magic of Hollerith machines. They managed the monopoly on the cards and the technology. and they gain been the ones that needed to customized-design even the paper types and punch playing cards--they had been customized-designed for each selected intention. That blanketed every thing kindly counting Jews to confiscating monetary institution money owed, to coordinating trains going into loss of life camps, to the extermination by labor campaign.

    it's why even the paper types within the prisoner camps had Hollerith notations and numbered fields checked. They gain been complete punched in. as an instance, IBM had to believe their Nazi counterparts that Code 6 within the attention camps become extermination. Code 1 changed into released, Code 2 turned into transferred, Code three was herbal dying, Code 4 become formal execution, Code 5 become suicide. Code 7 was collect away. Code 6 turned into extermination.

    all of the funds and complete the machines from complete these operations was claimed by means of IBM as legitimate traffic after the battle. The traffic used its connections with the condition department and the Pentagon to recuperate complete the machines and complete of the bank bills. They by no means referred to, "We don't covet this blood money." They wanted it all.

    What's your view of the a variety of court cases that gain been brought towards IBM on behalf of Holocaust survivors? I examine seven such proceedings--within the U.S., Poland, France, Switzerland. in the event that they complete disappeared it could subsist first-rate with me as a result of I faith that IBM's responsibility isn't a subsist counted of money reparations, it's a matter of unveiling its innermost secrets and techniques. but IBM prefers hiding at the back of the photo of defending court cases to coming clear about their documentation.

    every person methods the Holocaust in their method. Some select memorials, others ignore what took plot and want it might retract away, and some prefer court cases. i am an investigative reporter and harmonize with the foremost redress is illumination. curiously, the intent the Gypsies preeminent they sued turned into that IBM has invariably disregarded their requests for assistance. IBM has by no means apologized and under no circumstances spread out their archives. The company is boastful with complete who exact answers, after which these individuals flip to the courts. once again, a person is giving IBM horrific advice.  

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    Talking Shop: Disk storage and networking topics for the Win2K Server exam | killexams.com LOT-402 real Questions and VCE practice Test

    It’s unlikely that you’ll pass the Windows 2000 Server exam if you can’t demonstrate your expertise in administering disks and other storage devices. It’s certain you’ll fail if you can’t configure and troubleshoot Win2K network connections. In this, the third of four lists you’ll requisite to study to ensure that you’re ready for the Win2K Server test, I rush through the disk storage and networking topics you should review before trying your hand at the Win2K Server MCP certification. Did you miss the first two installments?If you didn’t snare the first two lists in this series, you can read them here: "The Win2K Server exam: Your first list to study" "The Win2K Server exam: Your second list to study" Administering storageBe sure you can administer disks and volumes in your sleep.

    DisksThe Disk Management utility, an MMC snap-in furthermore organize in the Computer Management console, should subsist your tool of choice.

    Understand the different qualities of basic disks, used by default, and dynamic disks. Basic disks are composed of primary partitions, extended partitions, and logical drives. Dynamic disks, meanwhile, are composed of a volume or volumes constituting space from one or more disks.

    Know the three different volume types:

  • Simple volumes contain space from just one disk.
  • Spanned volumes contain space from multiple disks; 32 is the limit. If one volume fails, complete data is lost; performance degrades if data must subsist read across multiple disks.
  • Striped sets contain space from multiple disks; 32 is the limit. If one volume fails, complete data is lost; performance is improved as reads and writes occur simultaneously on each volume.
  • Make sure that you can retain RAID questions straight. Windows 2000 Server supports three software RAID configurations:
  • RAID 0—Also known as disk striping, RAID 0 uses from two to 32 disks and provides excellent performance but no foible tolerance. If a RAID 0 disk fails, complete data is lost.
  • RAID 1—Also known as disk mirroring, RAID 1 uses two arduous disks, one as an exact image of the first, thereby providing foible tolerance. If one RAID 1 disk in the mirrored pair fails, then data is still preserved by the other disk.
  • RAID 5—Also known as disk striping with parity, RAID 5 writes data across multiple disks simultaneously, thereby providing a considerable performance enhancement and foible tolerance. If one disk fails, then data is still preserved by the RAID array.
  • Basic disks can subsist upgraded to dynamic disks without experiencing data loss. However, you must first back up your data and then restore it to prevent data loss when converting a disk from dynamic to basic. Dynamic disks can subsist extended only to NTFS-formatted volumes. Dynamic disks that were created by upgrading basic disks cannot subsist extended. When converting a disk to dynamic, 1 MB of unallocated space must subsist available.

    Don’t collect tripped up on a question covering laptops. Dynamic volumes don’t work with mobile systems.

    Select the Rescan Disks option whenever you add disks to a system. Disks that gain been taken from another system should subsist integrated using the Import exotic Disk option.

    CompressionYou requisite to know how to compress files. Two options exist.

    Files or folders can only subsist compressed if they’re on an NTFS partition. Using either My Computer or Windows Explorer, right-click on the file or folder you want to compress and select Properties. Next, click the Advanced button and then select the Compress Contents To save Disk Space check box.

    You can furthermore compress files and folders using the Compact command from the command line. Note that a file or folder can subsist either compressed or encrypted, but it cannot possess both attributes (even though check boxes, not radio buttons, are provided for those options).

    Disk quotasWindows disk quotas are supported natively for the first time in Win2K. Quotas can subsist set only on NTFS volumes.

    Quotas are not enabled by default. Quotas are set by disk, not by user. While you can confine the amount of disk space a user can consume on a disk, if you want to confine the user’s total disk consumption, you must administer quotas for that user on each disk the user can access.

    Enable disk quotas by right-clicking on a volume and selecting the Quota tab. Click Enable Quota Management. You can elect to send users warnings when they reach their confine or you can prevent them from consuming additional space. For more information on disk quotas, see my article "Control users’ Napster-like habits with Win2K’s disk quotas."

    Recover from disk failuresKnow how to read the Advanced RISC Computing (ARC) path Win2K uses to boot. Repairing the Boot.ini file is sometimes faultfinding to recovering a crashed or corrupted system.

    If a system is booting Win2K from the first controller, the first arduous disk, and the first partition, the Boot.ini’s ARC path will issue as follows:multi(0)disk(0)rdisk(0)partition(1)

    The multi entry specifies that a SCSI controller with the BIOS enabled is used or that a non-SCSI controller is in use. SCSI would issue instead of multi if a SCSI controller is used with the BIOS disabled. Disk defines the SCSI disk where the OS is housed, while rdisk specifies the (usually) IDE drive where the OS resides. Partition, meanwhile, indicates which partition holds the OS. Although complete other counters inaugurate with 0, the partition counter always begins with 1.

    Remote StorageFamiliarize yourself with Win2K’s Remote Storage feature. expend it to store specified data at remote locations when local disks no longer gain adequate disk space.

    Remote Storage is installed using the Control Panel’s Add/Remove Programs applet. Select Remote Storage from Windows Components. Then, data that is not used regularly, or data you want to archive, can subsist stored remotely, thereby freeing up local disk space.

    Administering network connectionsQuestions testing your networking expertise are sure to arise on your Win2K Server exam. Ensure that you’re well versed on complete of the following topics.

    Network protocolsWindows 2000 Server supports:

  • AppleTalk
  • ATM
  • DLC
  • IPX/SPX (NWLink)
  • IrDA
  • NetBEUI
  • Know how to install and configure each protocol. subsist sure that you know how to set frame types and network numbers when using NWLink. remember that DLC is used to communicate with mainframes and to print to Hewlett-Packard printers. subsist especially fluent with TCP/IP, as it’s the default Windows 2000 protocol. Revisit subnetting and addressing, too, if you requisite to.

    For more information on installing protocols, see my article "Installing network protocols in Windows 2000." For more on TCP/IP fundamentals, check out "TechRepublic’s TCP/IP Primer."

    Be on the lookout for any scenarios that present you with a 169.x.y.z IP address. Windows’ Automatic IP Addressing (AIPA) distributes IP addresses from the 169.x.y.z pool when a client experiences inconvenience receiving a cogent address, usually from a DHCP server. Systems with a 169.x.y.z address (and subnet mask of cannot traverse the Internet and, in fact, can communicate only with other 169.x.y.z systems on the selfsame subnet.

    Troubleshoot TCP/IP connections using the Ipconfig.exe command. Ipconfig /all is a particularly helpful command. Ping is used to check and test connections, while Nbtstat shows NetBIOS over TCP/IP information, and Netstat shows TCP/IP information.

    VPNs and authenticationSecurity is of paramount importance, and you’re likely to subsist tested on the differences between authentication protocols.

    Know the differences between complete of the following:

  • CHAP (Challenge Authentication Protocol) encrypts usernames and passwords only.
  • EAP-TLS (Extensible Authentication Protocol-Transport flush Security) offers secure transmission of session data.
  • MD5-CHAP (Message Digest 5 Challenge Handshake Authentication Protocol) encrypts usernames and passwords.
  • MS-CHAP (Microsoft Challenge Authentication Protocol) provides secure password transmission.
  • PAP (Password Authentication Protocol) isn’t secure, as passwords and usernames are sent in clear text.
  • SPAP (Shiva Password Authentication Protocol) encrypts password but not session data.
  • Ensure that you’re familiar with Layer 2 Tunneling Protocol (L2TP), which requires IPSec. L2TP is an extension of Point-to-Point Tunneling Protocol (PPTP), which is supported by legacy Windows platforms. Unlike PPTP, L2TP doesn’t provide a secure tunnel for session data by itself. IPSec provides the encryption of the session data through L2TP tunnels to enhance security.

    NICsYou’re likely to see a few questions on network interface card (NIC) administration when you purchase your exam. subsist prepared.

    NICs, of course, are installed using Control Panel’s Add/Remove Hardware applet. The order in which protocols are bound to the NIC is configured by right-clicking on My Network Places, clicking Network And Dial-up Connections, and selecting Advanced Settings from the Advanced menu.

    Update NIC drivers the course you would other drivers: expend the Device Manager. For more information on troubleshooting NICs, read these articles:

    ICS and NATWith any luck, you’ll never find your resources so constrained that you gain to go to using Internet Connection Sharing (ICS), in which only a unique system boasts access to the Internet. When only a unique system possesses a modem, but other computers must gain access to the Internet, you can expend ICS to partake the unique Internet connection. In such cases, network address translation (NAT) plays an essential role in determining a system’s subsequent IP address.

    One warning badge that ICS or NAT is in expend is the presence of a 192.168.x.y IP address. For more on ICS and NAT, read "The innards of Microsoft's Internet Connection Sharing and network address translation."

    DNSOh yes, you should learn complete there is about administering Domain designation System (DNS) in Windows 2000. dynamic Directory requires it. expend the Nslookup.exe command to troubleshoot DNS issues.

    Become intimate with the DNS snap-in, zone configuration, and the dynamic update process. Check out complete of these articles for more information on configuring and administering DNS:

    DHCPJust relish DNS, you must master Dynamic Host Configuration Protocol (DHCP) installation, configuration, and administration. Know when DHCP Relay Agents are required, how DNS integrates with DHCP, and how to configure DHCP scopes.

    Ensure that you’ve spent time working with the DHCP snap-in before trying this exam. subsist sure to review the TechRepublic article "Understanding new DHCP features in Windows 2000."

    WINSWINSis still in Windows 2000, which is good, as many organizations rely upon it to provide NetBIOS to IP address translation. WINS, relish DNS and DHCP, receives its own Win2K snap-in.

    Understand WINS’ push/pull replication process. Learn or glance up on WINS different node types too. For more on WINS, read "Setting up WINS in Windows 2000."

    Remote accessConfiguring and securing remote access is another essential topic. Know how to configure Routing and Remote Access (RRAS), multilink support, callback security, profiles, and remote access policies. You’ll find the Routing and Remote Access utility on the Administrative Programs menu.

    If you haven’t had an break to spend much time with RRAS, don’t miss Jim Boyce’s article "Introducing Windows 2000 Routing and Remote Access" and "Routing and remote access on Windows 2000 Advanced Server."

    Terminal ServicesIt’s feasible you’ll see a question or two on Terminal Services. Three components actually figure Terminal Services:

  • A Terminal Services server (the Win2K server running Terminal Services)
  • A client system
  • A Remote Desktop Protocol (RDP)
  • Terminal Services can subsist installed in two modes:
  • Application Server Mode is used when clients requisite to rush applications on the Terminal Services server.
  • Remote Administrator Mode is used when administrators requisite to remotely manage Win2K servers from a unique system.
  • Terminal Services clients are available for many platforms, including:
  • Windows for Workgroups
  • Win9x
  • WinNT 3.51 and 4.0
  • Win2K Pro
  • Terminal Services clients are furthermore available for Windows CE devices and some non-Windows clients. Terminal Services is another optional Windows Component. You install it using the Control Panel’s Add/Remove Programs applet.

    Don’t forget that each client that connects to a Windows 2000 Terminal Services server requires a special Terminal Services client access license (CAL).

    These TechRepublic articles provide additional reading:

    "Windows 2000 Terminal Services offers improved performance and functionality"

    "Using Win2K Terminal Server to save on shoe leather"

    "Extend your organization with Win2K Terminal Services"

    Eckel’s takeFrom DNS to WINS to DHCP and more, the Win2K Server exam covers a tremendous amount of ground. You can study brain dumps and cheat sheets complete you want, but you won’t pass. It’s essential that you spend time configuring services in Win2K, adding and removing users, testing policies, and performing other administrative tasks.

    You must furthermore spend time monitoring, optimizing, and securing servers. I’ll cover those topics next week when I conclude this succession of study lists for the Win2K Server test.

    Do you gain tips for the Win2K Server exam?We contemplate forward to getting your input and hearing about your experiences regarding this topic. join the discussion below or send the editor an e-mail. �

    Magnetic resonance imaging provides evidence of glymphatic drainage from human brain to cervical lymph nodes | killexams.com LOT-402 real Questions and VCE practice Test

    Our study provides in-vivo evidence of lymphatic drainage of a CSF tracer to cervical lymph nodes. Moreover, the time succession provide evidence that tracer enhancement within lymph nodes parallels glymphatic enhancement in time.

    The study cohort included individuals with various CSF disorders. Therefore, this cohort cannot subsist considered to consist of hardy individuals, and the present data may not subsist representative for lymphatic drainage in hardy people. It was, however, beyond the scope of this work to determine how disease nature affects lymphatic drainage. In future studies they may utilize the system to compare hardy individuals and patients with various clinical conditions to address how disease affects lymphatic drainage.

    Several lines of experimental research in animals gain provided evidence of lymphatic drainage from CNS to the cervical lymph nodes along cranial nerves and through the cribriform plate9,10,11,12,13,14,15,16,17,18. However, the existence of functional, classic lymphatic vessels within the CNS has been disputed. A recent breakthrough was the demonstration of functional dural lymphatic vessels1,2,6. It has been proposed that these dural lymphatic vessels may portray the anatomical continuation of the glymphatic system1, though it has not been established how the glymphatic system communicates with meningeal lymphatic vessels. It has previously furthermore been suggested that interstitial solutes are drained from the glymphatic system into CSF before resorption into meningeal lymphatics19. The present observations, demonstrating that lymph node enhancement coincides with glymphatic, rather than CSF enhancement, favors resorption into lymphatic pathways directly from the glymphatic perivenous space. They therefore hypothesize that the perivenous compartments of the brain and lymphatic vessels are interconnected rather than that subarachnoid CSF and substances drain directly to the meningeal lymphatic pathways.

    It should subsist noted, however, that several aspects of glymphatic circulation are still controversial, including whether interstitial transport is propagated by convective flux or diffusion20,21. Drainage to meningeal lymphatic vessels directly from perivenous spaces, as may subsist inferred by their data, would strongly back a convective constrain through the interstitial space with direction towards the perivenous compartment.

    The assumption that lymphatic drainage to cervical lymph nodes primarily originates from perivascular (glymphatic) transport receives some back from previous experimental animal research showing lymphatic drainage from cerebral perivascular circulation16,22, even though these early studies could not define the anatomical link between the perivascular compartment and lymphatic pathways.

    While the available evidence for CNS lymphatic drainage to cervical lymph nodes originates from animal research; corresponding in-vivo methods for humans gain yet not been developed. In a recent cohort study8, they reported brain-wide distribution of the contrast agent, and suggested that glymphatic MRI (gMRI) may subsist utilized to assess glymphatic circulation in man, inspired by previous observations in rodents7. The previous human study showed comparable time course for contrast enhancement within several brain regions, with peak after 24 hours. The present data extend and confirm previous observations of parenchymal CSF tracer enrichment within the brain regions studied. In the previous study8, they reported that parenchymal contrast enrichment depended on presence of contrast agent in nearby CSF and vicinity to larger, extra-parenchymal arteries. Therefore, the present observation of no parenchymal CSF tracer enrichment in one individual with idiopathic intracranial hypertension (no 13) despite marked enrichment within CSF is extraordinary.

    In the present study, the MRI contrast agent gadobutrol was utilized as CSF tracer and detected in cervical lymph nodes in 19 patients. It should subsist preeminent that a relative MRI signal augment in tissue at interest, even though when induced by presence of contrast agent cannot subsist used to quantify contrast agent concentrations at this stage. They estimated contrast enhancement in the largest, deep cervical lymph node available for measurement and with a length diameter of at least 15 mm. A threshold of 15 mm was selected to avoid partial volume effects and provide robust measurements. They aimed at exploring contrast enrichment in cervical lymph nodes on a phenomenological basis, since smaller lymph nodes are more susceptible to measurement error.

    By normalization of MRI signal unit measurements to standardized reference tissue (superior sagittal sinus and neck muscle, respectively), a change in signal unit can subsist detected. However, they furthermore measured a signal unit decline in some lymph nodes at a few time points (Table 2), which is most likely due to variations in the measured signal related to stability of the measuring method. While the medial pterygoid muscle should subsist considered to serve as a robust reference tissue, the muscle is not always in the nearest vicinity of the lymph node at interest, and local magnetic field inhomogeneities might strike these structures differently. Other contributors to measurement oversight in lymph nodes as well as reference tissue might subsist image babel and partial averaging effects, even though they strived to minimize these as far as feasible by allowing for robust measurements at the central portion of the lymph nodes. Nevertheless, despite these sources of error, the current for peak glymphatic and lymph node enhancement to coincide still seems clear.

    Similar to the venous drainage of the brain, lymphatic drainage to cervical lymph nodes may furthermore prove heterogeneity and inter-individual variations. To date, there are no human studies on which particular cervical lymph nodes that receive lymphatic drainage from the intracranial compartment. Hence, before this is further revealed, demonstration of lymph node enhancement with MRI is challenging, underlined by the non-enhancement of lymph nodes in 4 of 19 patients with lymph nodes >15 mm in this study. Due to this heterogeneous pattern, they selected the neck lymph node with the largest degree of enhancement when more than one neck lymph node was available for measurement. Other imaging modalities, such as positron emission tomography, might demonstrate as more sensitive to assess cervical lymph node uptake of CSF tracer.

    Our findings point to a unique feature of human lymphatic drainage from the CNS. Early non-enhancement in neck lymph nodes suggests a more limited role of human CSF drainage through nasal lymphatics and perineural root sleeves than previously assumed based on animal studies23,24. Moreover, the role of lymphatic vessels lining the dural sinuses could subsist more profound than previously thought, given their feasible duty as a main drainage system of the brain-wide glymphatic pathways1,2. In the 15 individuals with lymph node enhancement >1%, enhancement peaked at 24–48 hours in 11/15 individuals (73%). In this human cohort, brain glymphatic enhancement typically occurred after 24 hours. This is considerably slower than what is observed in anesthetized mice and rats, where glymphatic enhancement peaks within 2 hours7. Comparably, a previous study injecting contrast and dye to the cisterna magna of rats showed much faster lymphatic drainage to cervical lymph nodes25 than in the current human cohort. Of note is that MRI of lymph nodes was not done during the time interval of 6–9 hours in 7/19 individuals. Peak enhancement at this time can therefore not subsist excluded in these individuals.

    We observed peak CSF tracer enhancement in the brain parenchymal regions of interest and cervical lymph nodes after 24 hours, i.e. after one night’s sleep (Fig. 2). While this observation is of interest, they cannot conclude whether peak enhancement after 24 hours is related to sleep since they did not accomplish MRI between the time points 6–9 hours (late afternoon) and 24 hours after administration of contrast agent (next morning). Another factor is that the patients were lying flat until the 6–9 hours scan, and thereafter were allowed to stagger freely. Therefore, further studies are needed to clarify the role of sleep in human glymphatic circulation, preferably furthermore including a non-sleep control group. From animal studies, it has previously been suggested that sleep has a profound sequel on glymphatic circulation and thereby brain clearance of interstitial solutes. Hence, Xie et al.5 showed that natural sleep or anesthesia is accompanied with a 60% augment in the interstitial space. Furthermore, in that study, the augment in interstitial space increased glymphatic clearance of Aβ twofold. On the other hand, others26 using contrast-enhanced MRI and near-infrared fluorescence imaging organize that universal anesthesia reduced glymphatic duty in mice, as compared with awake mice.

    Lymphatic failure might subsist involved both in neuro-immunological and neuro-degenerative diseases. The cerebral lymphatic drainage system may subsist a pathway for immune cells10. In addition, it may subsist crucial for clearance of toxic squander solutes such as amyloid-β and hyperphosphorylated tau tangles; of which pathologic accumulation in the brain is a hallmark of Alzheimer’s disease27. Further development of imaging tools to assess lymphatic clearance may therefore prove useful.

    In their study, they applied the macrocyclic MRI contrast agent gadobutrol as a CSF tracer. Gadobutrol is well suited for this purpose because of its low molecular size (MW 604 Da). It is furthermore highly hydrophilic and non-ionic, and distributes easily in water28. In a previous study assessing glymphatic duty in rat brain, the linear MRI contrast agent Gd-DTPA (molecular weight 938 Da) was used7. For expend in humans, the macrocyclic contrast agents may subsist preferable above linear agents29, because they issue more stable in biological tissue30.

    Moreover, in previous studies in mice3,31, the contrast agent was injected into the cisterna magna at rates and volumes that potentially could overwhelm the intracranial compartment and meddle with CSF circulation32. In their study, they injected a total of less than 5 ml fluid into the subarachnoid space at flush of the lumbar spine, which should not strike intracranial pressure and CSF flux in humans. Also, there were no sedate adverse events following gadobutrol administration.

    Comparing the different brain parenchymal regions of interest showed the most pronounced CSF enrichment within the inferior frontal gyrus and the parahippocampal gyrus, which are located near to the leptomeningeal arterial trunks. This observation compares with the view that pulsations are the constrain behind parenchymal convective glymphatic flow8,33.

    Assessment of cervical lymph node enhancement might capitalize from MRI sequences with image slice of less thickness than applied in this study (3 mm), preferably isotropic 3D volume acquisitions, which furthermore would allow for reconstruction in multiple planes.

    A feasible occasions of cervical lymph node enhancement might subsist circulating contrast agent in the blood. For example, altered blood-brain-barrier might occasions leakage of gadobutrol to the vascular circulation. This seemed, however, less likely since enhancement in reference regions (sagittal sinus for cranial MRI and muscle for neck MRI) was none.

    The import of lymphatic drainage compared to other potential routes for clearance of brain water and solutes is currently not known. Using phantom devices with known concentrations of a given contrast agent in conjunction with MRI acquisitions, it should subsist possible, however, to quantify lymphatic drainage. An MRI based quantification routine could thereby determine lymphatic failure as a pathogenic factor behind brain disease.

    In summary, their study provides in-vivo evidence of CSF tracer drainage to cervical lymph nodes in humans. The temporal course of lymph node enhancement coincided in time with brain glymphatic enhancement rather than with CSF enhancement. This is in contrast to previous animal studies demonstrating lymphatic drainage from CSF via the cribriform plate and nasal mucosa, and at a much shorter time span. In the end, improved learning of human brain lymphatic drainage is expected to shed new light on pathogenic mechanisms behind degenerative and inflammatory brain diseases.

    How Safe Is Their Food Supply? | killexams.com LOT-402 real Questions and VCE practice Test

    grocery store

    grocery store

    afiler / CC BY-SA

    A recent survey published by the International Food Information Council organize that Americans are concerned about food safety. Foodborne illness resides as the top concern of survey respondents.

    These facts may sound worrying. Thankfully, they don't reiterate the entire story. The survey furthermore reveals that fully two-thirds of Americans are confident in the safety of the nation's food supply.

    Data back that confidence. For example, the number and severity of foodborne illnesses appears to subsist trending downwards in many places, including California.

    Part of their aplomb in their food supply no doubt stems from regulations. But rules can (and often are) imperfect, something I detail at length in my forthcoming book, Biting the Hands that Feed Us: How Fewer, Smarter Laws Would Make Their Food System More Sustainable. And, as I wrote about in a 2012 law-review article, regulations intended to Make their food safer often impose new costs but fail to ameliorate safety.

    Earlier this week—keeping the above facts in mind—the FDA published final rules to clarify and update its "GRAS" classification system. The acronym "GRAS," which stands for "generally recognized as safe," refers to the status of permissible food additives.

    GRAS rules gain been controversial for some time. On the one hand, critics gain viewed the self-policing approach favored by the rules as too heavily weighed in favor of food producers and, ergo, detestable both for consumers and food safety.

    On the other hand, the rules may give consumers a untrue sense of safety. Even then, the FDA is hardly handcuffed by GRAS. In 2015, for example, the agency effectively banned partially hydrogenated oils that contain trans fats, declaring these oils "are no longer GRAS." Many, me included, viewed the ban as a foolhardy bombard both on food license and on the food industry, and an overstepping of the agency's powers under the GRAS rules.

    It probably comes as no dumbfound that the new rules gain furthermore proven controversial, and for some of the selfsame musty reasons.

    Sen. Ed Markey (D-Mass.) blasted the updated rules, which embrace continued deliberate reporting by the food industry, as the equivalent of "a self-graded purchase home exam that industry doesn't even gain to hand in."

    Food Safety advice reported "publication of the final rule has generated opposition from some of the so-called food police groups."

    But a group of toxicologists surveyed by Food Navigator, a source of advice on the food industry, argued "critics gain not provided any evidence that the GRAS system is putting the public at risk." Neither is the food industry. And it's America's food producers who I believe are rightly due a worthy deal of credit not just for the safety of the nation's food supply but furthermore for their aplomb in that food supply.

    Take McDonald's. The company, which has seen its stock rebound after it switched to an all-day breakfast menu, has been testing out fresh beef in some restaurants. (The company's burgers are currently made from frozen beef.) Though that's something consumers issue to want, many of the company's franchisees worry that the switch could lead to increased incidents of foodborne illness. Competitors, including Wendy's and In-N-Out Burger, already expend fresh beef. Whatever the ultimate conclusion is from McDonald's, it's likely one that will strive to equipoise consumer demands with food safety.

    Businesses outside the food industry are furthermore working to Make food safer. A recent study by IBM researchers on the expend of "big data" to mitigate outbreaks of foodborne illness organize promising results.

    "IBM announced its scientists gain discovered that analyzing retail-scanner data from grocery stores against maps of confirmed cases of foodborne illness can hasten early investigations," reports the website Phys.org.

    Thanks to a combination of technological fixes and innovations, consumer demands, and regulations, better reporting, food-safety litigators, and other measures, their nation's food supply is largely safe, and appears to subsist growing safer.

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