Calculation of GFR via the Slope-Intercept Method in Nuclear Medicine

A determination of the glomerular filtration rate (GFR) with high accuracy is of great relevance especially in cases of insufficient kidney function. In nuclear medicine, the standard method is based on blood sample measurements with Cr-51 ethylenediaminetetraacetic acid (Cr-51-EDTA) or Tc-99m diethylene-triamine-pentaacetate (Tc-99m-DTPA), providing very high accuracy and reliability. In particular, the slope-intercept method turned out to be the most appropriate and is therefore routinely used in many hospitals worldwide. For this purpose, blood samples are drawn at certain time points starting 120 minutes after injection, which are then measured together with a standard probe in a gamma counter; based on the results, the GFR calculation is then usually performed automatically with an appropriate software. In this chapter, the mathematical background as well as a step-by-step description of the slope-intercept method is given. In our study, we found that at least three blood samples should be drawn in order to achieve highest quality and reliability. Furthermore, a sample size of at least three blood samples allows an error calculation which provides an estimation of the reliability of the preceding measurement

Sprachliche Komplexität im Unterricht: Eine computerlinguistische Analyse der gesprochenen Sprache von Lehrenden und Lernenden im naturwissenschaftlichen Unterricht in der Primar- und Sekundarstufe

We investigate the linguistic complexity of oral classroom interactions in late primary and early secondary school across German school types. The goal is to explore whether teachers and students align in terms of their use of the academic language register. We empirically base this investigation on transcriptions of teacher and student contributions during content matter lessons on the vaporisation and condensation of water. Across school types and grade levels, we compare the extent to which teachers offer language that is adaptively rich in linguistic constructs commonly associated with academic language, such as deagentivation, nominal style, and cohesive devices. Putting this in relation to the developing academic language competence of the students, we then compare the language offered by the teachers to the use of these academic language constructs in the students’ spoken language contributions. We discuss the methodological challenges arising from analyzing oral classroom interactions and from applying automatic linguistic complexity analyses to such data

The Ursinus Weekly, October 16, 1975

S.F.A.R.C. reps meet, discuss Library & proctors • Homecoming day is coming • Students, V.P. Richter discuss false alarm • Union plans mini-courses • Library Assoc. to meet at U.C. • New instructor • Editorial: Pride, not prejudice • Letter to the editor: Day vs. resident • Saturday Lunch • Speak up or give up • Freedom of speech • State of the Union • George Allen\u27s Ursinus Redskins • Our captains • Ursinus offense faltershttps://digitalcommons.ursinus.edu/weekly/1043/thumbnail.jp

The Ursinus Weekly, April 10, 1975

How to Succeed is Spring production • New Who\u27s who in religion lists Williamson • S.F.A.R.C. studies U.C. campus issues • Computer careers night a big success • Newman Society sponsors mass • Travelin\u27 VIII concert showcase for talent • Letters to the editor • Alarmed by alarms • Education at Ursinus • Casino Night success: Union production a big hit; Gamblers parley thousands into big prizes • Phils win East, Dodgers win West; Oakland repeats, Yanks win East • Preview of \u2775 Wings • Record review: Song for America, Kansas • Come out: See them!https://digitalcommons.ursinus.edu/weekly/1034/thumbnail.jp

The Ursinus Weekly, May 2, 1974

Two faculty members receive promotions • Committee of USGA proposes rule changes • Henry and Perreten get study grants • Dr. Parsons and Dr. Snyder to run Pa. Dutch course • Japanese will join U.C. summer school • U.C. to honor Rep. Ware at commencement • Dave Liscom to attend St. Andrews • Editorial: So what else is new?; Say something good • Italian philosopher is reborn • Alumni corner: The Ruby in debt • The ghost of Ursinus past • Ursinus students view unicorns • New 3-plus-3 plan: Degree in 3 years • Pi Gamma Mu names 10 to membership • Brazilians say “Saudade!” • U.C. students plan summers in Europe • Review: Springsteen’s rock rocks U.C. campus • ‘Chap’ resigns his U.C posts • Lacrosse trials select players • Bear runners looking good • Faculty focus: Georgia Ferrell leads winning gymnasts • Baseball squad facing tough competition • Two Ursinus basketball stars honoredhttps://digitalcommons.ursinus.edu/weekly/1015/thumbnail.jp

The Ursinus Weekly, October 10, 1974

Gov. candidate Drew Lewis fields questions at U.C. • Achatz discusses news media role at Ursinus forum • Parents\u27 Day events slated • USGA continues action policy • Editorial: Ursinus was a people place • Pages from Ursinus past: Radical changes in store for Ursinus by year 1970! • Pumpkin eater\u27s greenery • Personals • A letter to the Weekly • Institute helps pre-meds abroad • Ursinus student publishes histories • Story leaks out • X-country defeated by King\u27s College • Bears will win Saturday! • Hockey team plans tour of Englandhttps://digitalcommons.ursinus.edu/weekly/1021/thumbnail.jp

The Ursinus Weekly, May 20, 1977

Ursinus news in brief: Weekly tries new printer; Chem student receives award; Top seniors honored; Music officers picked; Simon wins award; Brandt wins award; Young Republicans choose officers • Richter hails USGA proposal as primary document • Field hockey trip cancelled • Chapter scholars honored • Comment: Is this any way to run a school? • Letters to the editor • Dames at sea • Movie attack: Fellini\u27s Casanova • Musical notes: Meistersingers tour • Parsons\u27 book reviewed • Pi No • On curriculum • Presidential memo • Doctorates • From the cluttered desk of the USGA President • Calendar priorities • Curley wins scholarship • 14 admitted to med schools • Placement Office offers services • Check it out: Lacrosse at 10-1 • Baseball winds down season • Women\u27s softball • Trinkle holds all records in high jump competition • 5th in MAC\u27s track team • Women\u27s tennis at match pointhttps://digitalcommons.ursinus.edu/weekly/1071/thumbnail.jp

The Ursinus Weekly, February 9, 1977

Ursinus news in brief: Summer employment outlook; Temple adopts plus, minus grades; U.S.G.A. releases absenteeism data; Craft named exec. assistant • Cafeteria trials successful • Testing rule changed • Calendar to be reviewed • S.F.A.R.C. discusses counseling, vandalism • Comment: A short lesson in Weekly economics • Ursinus: a suburban wasteland • Our common cause • Transcript hassles • Forum review: Musical notes • Let\u27s line up for Wismer • TGV • Seniors plan dinner dance • Art exhibition • Pre-Legal group meets • Basketball loses again • Commentary: Is a new coach needed? • Swimming teams resume seasons • Wrestling wrap-uphttps://digitalcommons.ursinus.edu/weekly/1065/thumbnail.jp