14 research outputs found

    Prospectus, January 2, 1973

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    BENDER NEW VEEP; Volunteer blood bank; Achievement motivation groups; Cruisin\u27 \u2773; True happenings; Prof Spectus; Box-office losers; Kenny Rogers at U. of I.; Diversions; monotonyhttps://spark.parkland.edu/prospectus_1973/1015/thumbnail.jp

    Prospectus, March 27, 1973

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    PC TO HOST WORKSHOP; \u27Clean\u27; Be a Bridgie!; Gang Night; Here and there with Parkland volunteers; Cruisin\u27 \u2773; True happenings; Letters To The Editor; A challenge; Candidate for PC board of trustees; IRS job openings; The genuine free Prospectus gasoline anti-ripoff charts; Candidates For Day Senator; Parkland Board Summary; PC bowling team roll-off today; 383 students on winter honors list; Community service fund guidelines completed; Prof Spectus; Number, please?; PC 9th in national indoor contest; Bicycles Bicyles Bicycles; Roller skating party; Magazines As Media; Hereditary Linked To Mental Illness; New, flexible baccalaureate program; Medical fields applicationhttps://spark.parkland.edu/prospectus_1973/1009/thumbnail.jp

    Prospectus, December 12, 1972

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    SWEETHEART CONTEST; SIU guest day; Parkland Art Association revived; Unusual Gifts; Cruisin\u27 \u2772; True happenings; christmas; Christmas without Christ; Actual gripes; Black women\u27s lib?; Parkland volunteer news; What do your tax dollars buy?; bigot; Prof Spectus; Theta Epsilon established at Parkland; New Student Government president; Speaking of Sports; Sample Ballot; Parkland\u27s dental hygiene program; Death of the Moody Blues; Will you have enough credits for a degree or certificatehttps://spark.parkland.edu/prospectus_1972/1000/thumbnail.jp

    Prospectus, November 28, 1972

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    TOYS FOR TOTS; Parkland vets Attend Regional Meeting; True Happenings; She Dislikes Park Area Modernization; Wasted Votes; leave the dead dead; Quiet; Prof Spectus; Rec Tournaments; Special Edition of Cruisin\u27 \u2772; A New Party?; Info for Students on Guaranteed Loan Program; Amphetamines: You don\u27t have to be \u27Street people\u27 to be hooked; Cold Vaccine; Speaking of Sports; New Cheerleaders Selected; Intramurals Winter Quarter; Parkland College Varsity Basketball Schedule November & Decemberhttps://spark.parkland.edu/prospectus_1972/1001/thumbnail.jp

    Prospectus, January 16, 1973

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    CHAMPAIGN-URBANA PEACE MARCH SCHEDULED; Anti-war resolution proposed; IOC meeting; Parkland trail riders; Please send a picture; Health program enrollment; Financial Board opening; All club treasurers; Can you help?; U.S. Gov\u27t Speaker; Debaters compete at ISU; Cruisin\u27 \u2773; True happenings; Ken\u27s munchy cereal; Equal tyme; Getting ignored by the biggies; PC lady hits the big time; Writer\u27s view questioned; Wanna graduate?; Big Kid\u27s Day?; little fat kid; Population, resources, environment; Mass demonstrations in D.C., Inauguration Day; Chi Gamma Iota; New campus regs; Freed injured; Movie Review: The Getaway; Prof Spectushttps://spark.parkland.edu/prospectus_1973/1014/thumbnail.jp

    Prospectus, April 25, 1973

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    NEW STUGO REPRESENTATIVES; 4-day nutrition workshop; Student\u27s views sought; Broken Hearts; Junior college visitation day; Student to give report to Academy; May elected chairman of nurse ass\u27n; Day Senator: Brenda Kendricks; Day Senator: Earnest Hite; Day Senator: Ken Segan; Convocations: Bill Tigrak; United Farm Workers organize boycotts; To the Editor; Brenda and Leroy; Judging teams; Festival; haiku; poem; incentive; Women welcome!; AAUW Scholarship awarded; Bridge tourney; bullet; Magical Mystery Tour: A quickie visit to Parkland\u27s new campus; What would you like to know about the new campus?; Prof Spectus; \u27How dare you presume I\u27m straight?\u27 Notes of a lesbian; PC bowlers romp to victory in 1st central Illinois tourney; From above an athlete\u27s feet; What\u27s decent to eat?; Baseballers win three of four games; Track team has high hopes; Changes in PC athletics; Thinclads take third; Wrestlinghttps://spark.parkland.edu/prospectus_1973/1008/thumbnail.jp

    The dynamic chemistry of transition metals in the troposphere

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    The redox chemistry of Fe, Cu, Mn, and Cr in fog and cloudwater, ambient aerosols, and surface microlayer has been investigated at coastal and inland locations in the Los Angeles basin, in Bakersfield, California, at Whiteface Mt., New York, and on Lake Erie and Lake Ontario. Samples were collected and analyzed for Fe(II), Fe(III), Fe-_(tot), Cu(I), Cu-_(tot), Mn(III+IV), Mn_(tot), Cr(III), Cr(VI), S(IV), S(VI), organic ligands (formate, acetate, oxalate). TOC (total organic carbon), pH, major cations (Na^+, Ca^(2+), NH_4^+, Mg_2^+, K^+), chloride, sulfate, nitrate, peroxides (RO_2H), and aldehydes (RCHO); the amount of sunlight was also measured. The concentrations and the ratios between the measured oxidation states and the total metal concentrations are as follows: Fe(II)(ΌM) Fe(II)/Fe_(tot) Cu(I)(ΌM) Cu(I)/Cu_(tot) 0.1-5 0.02-0.55 0.02-0.27 0.3-0.96 Mn(IV)(ΌM) Mn(IV)/Mn_(tot) Cr(III)(ΌM) Cr(III)/Cr_(tot) 0.026-0.21 0.25-0.97 0.002-0.051 0.09-0.74 The atmospheric redox cycle of Fe involves both dissolved and aerosol surface species and appears to be related to the presence of organic compounds which act as electron donors for the reduction of Fe(III). Fe(III) reduction is enhanced by light, but significant Fe(II) levels were observed in the dark. We suggest that reduction of Fe(III) species by organic electron donors may be an important pathway that affects the speciation of Fe in both urban and rural atmospheres. We found that 40-70% of the total chromium (-20 nM) was Cr(VI) in three cloudwater samples at Whiteface Mt. In the surface micro layer samples, a significant amount of Cr(III) was detected when the concentration of TOC was elevated. The concentrations of Cu(I) and Mn(III+IV) are below detection limit in most samples. In the few samples with measurable concentrations of Mn, Mn is in the reduced, Mn(II), state. In addition to field observations, the photolytic reduction of amorphous iron hydroxide (am-Fe(OH)_3), lepidocrocite (y-FeOOH), goethite (a-FeOOH), hematite (α-Fe_2O_3), and natural iron containing aerosol particles in the presence of formaldehyde, formate, acetate, oxalate, and butyrate has been investigated in the laboratory. Important parameters in the photoreduction experiments are pH, wavelength of the irradiating light, the nature of the electron donor, and the characteristics of the iron phase. The results show that the fastest rates of photoreduclion of Fe( III) to Fe(II) are achieved with am-Fe(OH)_3 as the electron acceptor and formate as the electron donor. Ambient iron-containing aerosol particles with oxalate as the electron donor resulted in a significant photochemical production of H_2O_2

    A global method for calculating plant CSR ecological strategies applied across biomes world-wide

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    Competitor, stress‐tolerator, ruderal (CSR) theory is a prominent plant functional strategy scheme previously applied to local floras. Globally, the wide geographic and phylogenetic coverage of available values of leaf area (LA), leaf dry matter content (LDMC) and specific leaf area (SLA) (representing, respectively, interspecific variation in plant size and conservative vs. acquisitive resource economics) promises the general application of CSR strategies across biomes, including the tropical forests hosting a large proportion of EarthÂŽs diversity.We used trait variation for 3068 tracheophytes (representing 198 families, six continents and 14 biomes) to create a globally calibrated CSR strategy calculator tool and investigate strategy?environment relationships across biomes world‐wide.Due to disparity in trait availability globally, co‐inertia analysis was used to check correspondence between a ?wide geographic coverage, few traits? data set and a ?restricted coverage, many traits? subset of 371 species for which 14 whole‐plant, flowering, seed and leaf traits (including leaf nitrogen content) were available. CSR strategy/environment relationships within biomes were investigated using fourth‐corner and RLQ analyses to determine strategy/climate specializations.Strong, significant concordance (RV = 0·597; P < 0·0001) was evident between the 14 trait multivariate space and when only LA, LDMC and SLA were used.Biomes such as tropical moist broadleaf forests exhibited strategy convergence (i.e. clustered around a CS/CSR median; C:S:R = 43:42:15%), with CS‐selection associated with warm, stable situations (lesser temperature seasonality), with greater annual precipitation and potential evapotranspiration. Other biomes were characterized by strategy divergence: for example, deserts varied between xeromorphic perennials such as Larrea divaricata, classified as S‐selected (C:S:R = 1:99:0%) and broadly R‐selected annual herbs (e.g. Claytonia perfoliata; R/CR‐selected; C:S:R = 21:0:79%). Strategy convergence was evident for several growth habits (e.g. trees) but not others (forbs).The CSR strategies of vascular plants can now be compared quantitatively within and between biomes at the global scale. Through known linkages between underlying leaf traits and growth rates, herbivory and decomposition rates, this method and the strategy?environment relationships it elucidates will help to predict which kinds of species may assemble in response to changes in biogeochemical cycles, climate and land use.Fil: Pierce, Simon. University Of Milan; ItaliaFil: Negreiros, Daniel. Universidade Federal de Minas Gerais; BrasilFil: Cerabolini, Bruno E. L.. Universidad de Insubria; ItaliaFil: Kattge, Jens. 1max Planck Institute For Biogeochemistr; AlemaniaFil: DĂ­az, Sandra Myrna. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - CĂłrdoba. Instituto Multidisciplinario de BiologĂ­a Vegetal. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas FĂ­sicas y Naturales. Instituto Multidisciplinario de BiologĂ­a Vegetal; ArgentinaFil: Grime, John Philip. University of Sheffield; Reino UnidoFil: Thompson, Ken. University of Sheffield; Reino UnidoFil: Hunt, Roderick. University of Exeter; Reino UnidoFil: Wilson, Peter J.. University of Sheffield; Reino UnidoFil: Buffa, Gabriella. University Ca’Foscari of Venice; ItaliaFil: Nyakunga, Oliver C.. University Ca’Foscari of Venice; ItaliaFil: Reich, Peter B.. University of Minnesota; Estados UnidosFil: Caccianiga, Marco. UniversitĂ  degli Studi di Milano; ItaliaFil: Mangili, Federico. UniversitĂ  degli Studi di Milano; ItaliaFil: Ceriani, Roberta M.. The Native Flora Centre; Italia. UniversitĂ  degli Studi di Milano; ItaliaFil: Luzzaro, Alessandra. UniversitĂ  degli Studi di Milano; ItaliaFil: Brusa, Guido. University of Insubria; ItaliaFil: Siefert, Andrew. University of California at Davis; Estados UnidosFil: Barbosa, Newton P. U.. Universidade Federal de Minas Gerais; BrasilFil: Chapin III, Francis Stuart. University Of Alaska; Estados UnidosFil: Cornwell, William K.. University of New South Wales; AustraliaFil: Fang, Jingyun. The Chinese Academy of Sciences; ChinaFil: Fernandes, Geraldo Wilson. Universidade Federal de Minas Gerais; BrasilFil: Garnier, Eric. Centre d’Écologie Fonctionnelle et Évolutive; FranciaFil: Le Stradic, Soizig. UniversitĂ© de LiĂšge; BĂ©lgicaFil: Peñuelas, Josep. Global Ecology Unit; EspañaFil: Melo, Felipe P. L.. Universidade Federal de Pernambuco; BrasilFil: Slaviero, Antonio. University Ca’Foscari of Venice; ItaliaFil: Tabarelli, Marcelo. Universidade Federal de Pernambuco; BrasilFil: Tampucci, Duccio. UniversitĂ  degli Studi di Milano; Itali
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