C, N AND P STOCKS AND FLUX THROUGH THE MICROBIAL BIOMASS UNDER DIFFERENT SOIL MANAGEMENT

Abstract - The objective of this study was to determine the effects of different crop systems on soil microbial properties and C, N and P stock after 22 years of cropping on an Oxisol (Typic Haplorthox) at Londrina, Brazil. Soil samples were taken at 0-5, 5-10 and 10-20 cm depths and evaluated for microbial biomass C, N and P. The cultivated sites presented lower microbial biomass and C and N stock than Forest site. While the total P stock presented under crop sites were higher than Forest site. The annual N and P flux through the soil microbial biomass means respectively about 65% and 45% for Coffee, about 50% and 70% for maize and 65% and 60% for wheat of the annual N e P needs. Those results evidence that the microbial biomass represents a substantial reserve of nutrients in the soil and may contribute substantially to the nutrients requirements of crops

The Ursinus Weekly, November 10, 1952

Faculty show begins Chest drive, Nov. 15 • Pancoast, Miller debate merits of Ike and Adlai • Jones speaks to freshman class • Group production judged success • Death takes holiday in Curtain Club play • Frosh officers disclosed; Ronald Hutchinson, prexy • Seniors plan for show and dances • Workers net $40 for Campus Chest • Steward resigns • Cheerleaders to take over plans for future pep rallies • Pre-meds take tour • Former Ursinus student dies in automobile accident • Editorials: Was this fun?; Let\u27s go, Band • Noble sportsmen • Letters to the editor • Rushees sign fraternity bids • New patriotism will help Ike • Bears face Juniata in last home tilt • Bakermen lose to Haverford • Bakermen blast LaSalle in home soccer tilt, 2-0 • Temple drops Belles, 5-2 • Chess Club wins, ties • Messiah to be Dec. 11 • Lantern chooses selectionshttps://digitalcommons.ursinus.edu/weekly/1505/thumbnail.jp

The Ursinus Weekly, May 5, 1952

Phila. Story to be presented May 8, 9 & 10 • Pre-meds elect officers • Y cabinet assumes duties at retreat • Music Club to hold elections tomorrow • Inter-sorority group holds annual party • Students will be charged for all overdue library books • Music Club to give concert • WSGA endorses removal of posters • New Lantern head selected by staff • Dan Giangiulio is elected new president of MSGA • Final plans set for May Day pageant, campus activities • Future teachers to hear talk Tuesday • Ludwig receives prize from chemical institute • Bus. Ad. club reorganizes; Bennett elected president • New Selective Service test scheduled to be given May 22 • Editorials: More pride needed; Super-patriots gag opinion • Spirit group meets to plan program for next year • Chess club loses match • Letters to the editor • German Club elects Owens • Junior-Sophomore weekend held • Pinned • Engagements • Many infected by senioritus • May pageants present queen in many guises • Parting seniors reveal one last desire • Hal Feist hurls seven-hit victory over Swarthmore • Girls net team gains shutout win • Delaware trounces Bears 10 to 3 with 15-hit attack • Cinder men rout Cadets, lose to Lehigh runners • Girls\u27 tennis team beats Stroudsburg 4-1 • Gellman elected to captain 1953 wrestling squad • Moravian beats Ursinus; Bears leave 15 on base • Stolen gloves halt intramural games • Y retreaters spend enjoyable weekendhttps://digitalcommons.ursinus.edu/weekly/1543/thumbnail.jp

The Ursinus Weekly, October 20, 1952

Helfferich to receive degree on Founders Day • MSGA rules breaks as illegal, customs to remain • Bloodmobile to come Wed. • Sorority rushees to open bids Friday • Newman Club hears speaker • Hutchison chosen to plan frosh show • Debating club meets • Varied plans made for Old Timers Day • Day study plans for fashion show; Initiates freshmen • Roberts, Geiger cast as leads in Fall production • Ten new members chosen by Lantern • Orsini to benefit by dance proceeds • Sturgis receives honor at ceremony • Varsity Club to hold dance • Carnival, Halloween ball planned by senior class • Pre-med honors Brownback • Editorials: Highest honor; Give blood • Campus Chest conducts poll • Chem society to visit Sun Oil • Juniors hold birch beer ball • Warren to address college students • Affair in Wisconsin • Etiquette part of frosh orientation • Student Union data released • Over 75 students attend Y retreat • Old Timers Day not new; Football stories of past • Ursinus viewed by freshman • Dr. Yost marks college boards; Unique marking system shown • Hockey team loses to E. Stroudsburg • Bears rout Haverford 19-0; Glock, Swett score fourth • Bakermen tie Mules 3-3 on Tait\u27s last minute goal • Swarthmore here on Alumni Day • Brodbeck and Curtis victors • Banner found • WAA holds reception for freshman womenhttps://digitalcommons.ursinus.edu/weekly/1502/thumbnail.jp

The Ursinus Weekly, October 6, 1952

Dean reveals new title for former B list • MSGA announces concession grants at first meeting • Musicians to appear Sunday • Ursinus bloodmobile to arrive October 22; Donors urged to apply • Thespians reveal production plans • Chest drive scheduled for early in November • Spirit Committee, Y, plan pep rally • Changes made in Bio, English faculty; New librarians, preceptresses installed • Y starts plan of orientation for freshmen • WSGA arranges varied plans for freshman affairs • Godshall resigns college position • Matlaga receives Cub and Key award • Music Club announces schedule of concerts • Dean of Women recuperates from serious eye ailment • Supply Store has new plans • New night courses stress economics • Lantern seeks staff members; Deadline set for first dance • Editorials: Great loss; Right direction • Independents in quandary • Several marriages occur over Summer • Debaters reveal plans • Seniors schedule activities • Election debate planned • Chi Alpha to offer grace • Y holds doggie roast • Sophs hold first meeting • Calm ones • Reporter discovers students from Ursinus at ocean resort • Fightin\u27st college demands cooperation of all students • Hockey squad prepares for Swarthmore opener • Bakermen face rugged schedule • 1952-53 prospects high; Host of lettermen back • Crusaders hand Grizzlies curtain raiser defeat • Miss Snell is always winner • WAA gives card party; Explains membership system • Bears face Drexel in home opener • Pre-med society changes name in memory of Dr. Brownback • Canterbury club plans retreathttps://digitalcommons.ursinus.edu/weekly/1500/thumbnail.jp

Ariel - Volume 8 Number 2

Executive Editor James W. Lockard , Jr. Issue Editor Doug Hiller Business Manager Neeraj K. Kanwal University News Richard J. Perry World News Doug Hiller Opinions Elizabeth A. McGuire Features Patrick P. Sokas Sports Desk Shahab S. Minassian Managing Editor Edward H. Jasper Managing Associate Brenda Peterson Photography Editor Robert D. Lehman, Jr. Graphics Christine M. Kuhnl

Possible function of the protein bound to nuclear complementary RNA

It was demonstrated that individual renal endothelial dilatory function of the healthy rat predicts susceptibility to subsequent renal damage induced by 5/6 nephrectomy. In addition, it is reported that myocardial infarction (MI) that was performed upon unilateral nephrectomy (UNx) induced highly variable renal damage. Therefore, whether the variability in renal damage after MI could be explained by the variation in individual renal endothelial function before the induction of injury was studied. Endothelium-dependent relaxation to acetylcholine was investigated in vitro in small arteries that were isolated from the extirpated kidney at UNx. MI was induced 1 wk after UNx by ligation of the left coronary artery. Proteinuria and systolic BP were evaluated weekly for 16 wk thereafter using metabolic cages and the tail-cuff method, respectively. Upon termination of the study, focal glomerulosclerosis was evaluated by histology as an additional marker of renal damage. After MI, nephrectomized male Wistar rats (n = 15) gradually developed variable proteinuria, ranging from 20 to 507 mg/24 h at week 16, with an average systolic BP of 131 +/- 7 mmHg. The individual renal endothelial function of the healthy rats predicted the extent of renal damage in terms of proteinuria (r = -0.62, P = 0.008) and focal glomerulosclerosis (r = -0.70, P = 0.003). The individual level of renal endothelial function in the healthy rat is able to predict the severity of renal damage that is induced by MI. Further exploration of the underlying mechanisms may lead to discovery of preventive renoprotective therapies

The Ursinus Weekly, January 12, 1953

Petitions for May queen to start Feb. 2 • Revised final exam schedule • 11 students to graduate this January • Over 200 people hear Earle Spicer sing ballads Wed. • Lucas, Scott join cast of Alpha Psi • Pettit discovers fire in Bomberger chapel • Library has new collection of great books of western world • Campus Chest total is $955.23 • Y commission holds vespers • Frosh class discusses plans; Sets tentative dance date • Chem group to hear speech • Turkish speaker addresses classes Tuesday morning • Frats hold meetings, set date for dances • Movie to be shown in S-12 • 32 girls invited to Rosie dessert • Ruby wants snaps brought to Hobson • New rules regulate use of Alumni office machines • Editorials: New year suggestion • Goodbye H.S.T. • Letters to the editor • Engagements • Weddings • What are ex-student-teachers doing with their free time? • January graduates reveal variety of future plans • Resolutions of eager frosh contrast to humble seniors • F&M routs Bears 90-65 with second half splurge • Grizzlies rally to smother alumni 96-75 for fifth • Belles drub Moravian 75-22; Kuhn scores 21 • Grapplers down Swarthmore team • Herb Knull tabs record 46 as Ursinus routs Fords • French Club gives moviehttps://digitalcommons.ursinus.edu/weekly/1510/thumbnail.jp