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Proliferation of <i>Salvinia molesta</i>at Lake Kyoga Landing Sites as a Result of Anthropogenic Influences

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Journal of Geoscience and Environment Protection 2017年第11期5卷 160-173页

作者： morgan Andama Robert Ongom Ben Lukubye Department of Biology Faculty of Science Mbarara University of Science and Technology Mbarara Uganda

Salvinia molesta (native of south-eastern Brazil) is a free floating aquatic fern that has spread to several countries around the globe including Uganda. Under optimum growing conditions, the plant is capable of spreading rapidly where it can have immense environmental, economic and human health impacts. Thick mats of the weed have been recorded in some parts of Lake Kyoga, Uganda where it hinders the abstraction of water, docking and boat take-off, bathing and swimming activities. Therefore this study aimed to determine the extent of S. molesta at selected landing sites in Lake Kyoga and the influence of anthropogenic activities on the weed coverage as well as the effect of physico-chemical parameters of the water on the development of the weed. Quadrats were used to ascertain the coverage of S. molesta while the physico-chemical parameters were determined by standard methods. The results showed significant positive correlation of S. molesta weed coverage with phosphates (PO4-P) and negative correlations with pH, dissolved oxygen (DO) and water flow rate. Though statistically insignificant waste sites recorded the highest overall S. molesta coverage (82.61 ± 21.12 m2) per 400 m2 quadrat followed by boat docks (82.24 ± 19.45 m2), gardens (50.93 ± 11.82 m2) and finally fishing areas (27.94 ± 5.93 m2) respectively. The overall weed coverage was highest around the shoreline locations of Acholi inn landing site (101.72 ± 22.89 m2 per 400 m2) followed by masindi port (60.39 ± 15.64 m2), Waitumba (41.89 ± 10.55 m2) and the least in the offshore location at Kayei landing site (39.71 ± 10.17 m2). Salvinia molesta distribution in Lake Kyoga is linked to nutrient (PO4-P) supply, proximity to the shoreline and the associated anthropogenic activities. Hence waste sites, gardens and boat docks enhance S. molesta invasion in Lake Kyoga. Therefore, sources of nutrients (phosphates) into Lake Kyoga that favour the proliferation of S. molesta should be minimized through adequate was

关键词： Freshwater Human Activities Invasive Weed management Uganda

Customizing of Hemodialysates

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中国血液净化 2002年第1期1卷 1-6页

作者： todd S.Ing Tarek m.Daoud Shuchi Patel Srivasa Chebrolu Brian Lipps Carl m.Kjellstrand Departments of medicine and Research Veterans Affairs HospitalHines Loyola University Chicago Stritch School of MedicineMaywoodIllinoisU.S.A.

　　According to the 22nd edition of "The American Illustrated medical Dictionary",dialysis[dia=through,apart,across or between;lysis=to loose]is defined as the process of separating crystalloids and colloids in solution by the differences in their rates of diffusion through a semipermeable membrane:crystalloids pass through readily,colloids very slowly or not at all(1).……

关键词： Customizing, Hemodialysates Customizing of Hemodialysates

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吐哈盆地煤成烃研究

石油学报 2002年第4期23卷 13-17页

作者：程克明熊英曾晓明 J.m.moldowan J.Greene.todd 中国石油勘探开发研究院北京100083 吐哈油田研究院新疆哈密839009 斯坦福大学地球科学系

根据原油生物标记化合物有关参数的聚类分析 ,将吐哈盆地原油分成源于侏罗纪煤系沼泽相 (包括煤为源岩 )的第一类原油 ,源于中、下侏罗统过渡相富藻碳质泥岩和富藻煤的第二类原油和源于上二叠统塔尔郎组湖相泥岩的第三类原油。根据原油... 详细信息

根据原油生物标记化合物有关参数的聚类分析 ,将吐哈盆地原油分成源于侏罗纪煤系沼泽相 (包括煤为源岩 )的第一类原油 ,源于中、下侏罗统过渡相富藻碳质泥岩和富藻煤的第二类原油和源于上二叠统塔尔郎组湖相泥岩的第三类原油。根据原油中生物标记物的年代学特征 ,提出利用二萜烷指数将侏罗系的原油 (二萜烷指数 >0 8)与上二叠统的原油 (二萜烷指数 <0 5 )加以区别的方法。根据不同沉积相带原油和相应源岩饱和烃组分中17 降扁枝烷和 5a 雄甾烷以及芳烃中的三芳甾系列化合物进行了精细的油源对比 ,确定了本区三类原油的 17 降扁枝烷、5a 雄甾烷和三芳甾系列化合物的分布特征及沉积相序关系 ,进一步从油源对比的角度证明了本区存在源于中、下侏罗统的具有商业价值的煤成油。

关键词：吐哈盆地煤成烃聚类分析二萜烷烷指数三芳甾烷断代生物标记物

The Prebiotic Effect of Triple Biotic Technology on Skin Health

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Journal of Cosmetics, Dermatological Sciences and Applications 2021年第4期11卷 304-319页

作者： min Li Aixing Fan Junhong mao Nadia Soliman Komal Shahani Andre’ m. morgan Thomas Boyd Colgate-Palmolive Company Technology Center Piscataway New Jersey USA

Objective: Pre-, pro- and postbiotics are becoming more prevalent as ingredients in cosmetic and personal care products. A novel triple biotic technology has been developed and investigated for its impact on skin flora and skin barrier properties. methods: Growth inhibition/promotion assay was performed to determine the effect on skin bacteria growth, using m>Escherichia coli, Corynebacterium striatum, Staphylococcus aureus, and Staphylococcus epidermidism>. A skin penetration assay and skin barrier biomarker measurements were performed using an m>ex vivom> human skin explant model. The triple-biotic complex of inulin, 2-butyloctanol, and a biomimic blend of postbiotics was tested individually as well as part of cosmetic formulations. Results: The triple-biotic technology, either as individual components or in a cosmetic formulation, inhibited the growth of undesirable bacteria, in most cases. On the other hand, the growth of desirable bacteria was either promoted or maintained. The cosmetic formulations with the triple-biotic technology demonstrated an enhanced skin barrier and an increase in skin barrier biomarkers. Conclusion: A novel triple-biotic technology has been developed and shown to deliver a strong prebiotic effect with demonstrable benefits on bacterial growth, skin barrier properties, and the production of skin barrier biomarkers. This study indicates that triple-biotic technology can be used as a desirable prebiotic ingredient in personal care products to provide skin health benefits.

关键词： Triple Biotic Technology Prebiotics Postbiotics Skin microbiome Skin Barrier

moving fast, thinking fast:The relations of physical activity levels and bouts to neuroelectric indices of inhibitory control in preadolescents

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Journal of Sport and Health Science 2019年第4期8卷 301-314页

作者： Dominika m.Pindus Eric S.Drollette Lauren B.Raine Shih-Chun Kao Naiman Khan Daniel R.Westfall morgan Hamill Rebecca Shorin Emily Calobrisi Dinesh John Arthur F.Kramer Charles H.Hillman Department of Kinesiology and Community Health University of Illinois at Urbana-ChampaignUrbanaIL 61801USA School of Health and Human Sciences University of North Carolina GreensboroGreensboroNC 6170USA Department of Psychology Northeastern UniversityBostonMA 02115USA Department of Health and Kinesiology Purdue UniversityWest LafayetteIN 47907USA Department of Health Sciences Northeastern UniversityBostonMA 02115USA Department of Physical Therapy Movement&Rehabilitation SciencesNortheastern UniversityBostonMA 02115USA

Background:Structured vigorous physical activity(VPA)can improve cognitive control in children,but studies relating daily physical activity(PA)to cognitive control have yielded conflicting *** objectively measured daily PA summarizes all occurrences of PA within a registered period,a minimum duration of continuous PA is required for registration of a PA *** brief bouts of high-intensity PA can account for a large proportion of children’s daily activity-related energy expenditure,this study assessed whether daily and bouted VPA were selectively related to cognitive control in preadolescents relative to other PA ***:A total of 75 children between the ages of 8 and 10 years(49%girls)wore an ActiGraph wGT 3 X+on the hip for 7 *** acceleration signal from the vertical axis was summarized over 1 s,5 s,and 15 s *** and boutecd modercate PA,moderate-to-vigorous PA,and VPA were *** bouts were expressed as the frequency and time spent in 2 different continuous PA bouts,one lasting≥10 s and the other lasting≥30 s at a given *** control was assessed using behavioral responses to a modified flanker task(mean reaction time(RTmean)and accuracy).Attentional resource allocation and co gnitive processing speed were measured using the amplitude and latency of the P3 component of event-related brain potentials,*** between PA,behavioral indices of inhibitory control,P3 amplitude,and latency were assessed using hierarchical regression ***:Daily VPA was not related to RTmean or accuracy on either congruent or incongruent *** contrast,more time spent in VPA bouts lasting≥30 s predicted shorter P3 latency across epochs and flanker congruencies(allβ≤-0.24,all p≤0.04).The associations between shorter P3 latency and the time spent in moderate-to-vigorous PA bouts lasting≥30 s were less consistent and largely limited to congruent trials(congruent:β(-0.3 1,-0.34)).No significant asso

关键词： Accelerometry Bouts Children ERPs Inhibitory control P3 Physical activity

Cognitive behavioral therapy group intervention for HIV transmission risk behavior in perinatally infected adolescents

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Health 2012年第12期4卷 1334-1345页

作者： Ruth m. Senyonyi Lee A. Underwood Elisabeth Suarez Seggane musisi todd L. Grande College of Social and Behavioral Sciences Wilmington University New Castle USA Department of Psychiatry Makerere University Kampala Uganda Regent University School of Psychology & Counseling Virginia Beach USA

Purpose: This study analyzed treatment effects of cognitive behavioral therapy (CBT) group counseling intervention on HIV transmission risk behavior, depression, anxiety, and alcohol use in HIV perinatally infected adolescents attending an HIV clinical care center in Uganda, Africa. method: A total of 186 adolescents were randomly assigned to an experimental or control arm and assigned into groups of 11 - 16 adolescents. The experimental groups received an 80-minute CBT based weekly intervention for 8 consecutive weeks, while the control groups received only standard group care. Data from self report assessments were analyzed at pre- and post-test using repeated measures of analysis of variance. The participants, analyzed by variable, included 115 for sexual behavior, 106 for depression, 88 for anxiety, and 115 for alcohol use. Results: The results from the study show a large significant difference (p = 0.006) between the experimental and control groups on the anxiety variable. There were no significant differences between the experimental and control groups on the variables of sexual behavior (p = 0.876), depression (p = 0.700), and alcohol use (p = 0.815). There was an indication of reduced levels of HIV sexual transmission risk behavior, depression, and alcohol use levels in the participants in both the experimental and control groups. Conclusions: Risky sexual behavior places HIV perinatally infected adolescents at risk of re-infection, sexually transmitted diseases, and transmitting HIV to their sexual partners. CBT group counseling intervention equipped the participating adolescents with appropriate life skills to deal with psychological distress and anxiety often seen in their lives and may be useful in routine medical care to reduce transmission risks and improve wellness and call for its incorporation into HIV preventive programs and counselor education.

关键词： Group Counseling Cognitive Behavioral Therapy HIV/AIDS Adolescents Perinatally Infected

Effect of human disturbance on the structure and regeneration of forests in the Nevado de Toluca National Park, mexico

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Journal of Forestry Research 2012年第1期23卷 39-44页

作者： Angel Rolando Endara Agramont Sergio Franco maass Gabino Nava Bernal Juan Ignacio Valdez Hernández todd S.Fredericksen Instituto de Ciencias Agropecuarias y Rurales(ICAR) Universidad Autónoma del Estado de MéxicoInstituto Literario N°100Col.Centro.PO.Box 50000.TolucaMéxico Colegio de Posgraduados Carretera México-TexcocoKm.36.5Montecillo.PO.Box 56230TexcocoMéxico School of Natural Sciences and mathematics Ferrum CollegeP.O.Box 1000Ferrum VA 24088USA

Sample plots were established in the principal forest types in the the Nevado de Toluca National Park, mexico including those domi- nated by Pinus hartwegii, Abies religiosa, Quercus laurina and Alnus jorullensis. The vertical structure was defined by three strata in the coniferous forests and two strata in the broadleaved forests. Timber harvesting in Abies religiosa and Quercus laurina forests and fires generated by humans in Pinus hartwegii forests impeded the recruitment of saplings. mature trees were also heavily impacted by logging in Pinus hartwegii forests. On the contrary, Alnusjorullensis forests were increas- ing due to the disturbance of Pinus and Quercus forests, as well aban- doned crop lands within the park. A combination of logging, uncon- trolled fire, and grazing appears to be compromising the recruitment of important tree species in this national park. These factors, together with human settlements, have also increased the proportion of early succes- sional species. Changes in forest structure from human disturbance indicate a need to control these activities if conservation goals are not to be compromised.

关键词： forest structure human disturbance mountain forests

The Use of PCA3 Can Reduce the Number of Prostate Biopsies Performed in a Community-Based Urologic Practice

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Open Journal of Urology 2013年第5期3卷 200-205页

作者： Bradley m. Boelkins Christopher m. Whelan Richard J. Kahnoski Jonathan todd Bolthouse Brian R. Lane michigan State University East Lansing USA

Purpose: It is now generally accepted that PSA screening identifies many prostate cancers that are low-risk and may not need treatment. PCA3 is a prostate cancer-specific marker with improved diagnostic accuracy when compared with PSA in research studies. It remains unknown whether PCA3 testing can reduce the unnecessary diagnosis and treatment of prostate cancer in routine practice. We evaluated whether the use of PCA3 in clinical practice decreases the number of biopsies being performed in response to PSA testing. methods: 64 consecutive patients undergoing PCA3 measurement in a single community-based urology practice were analyzed for rates of biopsy performance and prostate cancer detection. Results: median PSA was 5.0 (range: 0.4 - 38.6) and 50% had undergone prior biopsy without evidence of cancer. median PCA3 score was 13.6 (range: 1.6 - 133.0) with 14 patients having an elevated PCA3 (>35). Prostate biopsy was avoided in 50 of 64 patients (78%). Of the 11 patients undergoing biopsy for abnormal PCA3, 7 had prostate cancer (64%). At >2-year median follow-up, 39 of the remaining 50 patients (78%) avoided subsequent biopsy. Only 5 prostate cancers were diagnosed during follow-up. Conclusions: When used in routine clinical practice, PCA3 appears to reduce the number of biopsies being performed in response to elevated PSA. Given the increasing interest in strategies to reduce unnecessary prostate cancer diagnosis and treatment, this FDA-approved and widely-available molecular test appears to achieve these goals. Further testing will clarify the role of PCA3 in initial and subsequent prostate cancer screening paradigms.

关键词： Prostate Cancer Prostate Cancer Antigen 3 (PCA3) Prostate Biopsy

A New Occurrence of （Gold-Bearing） Graphite in the Assosa Region, BenishanguI-Gumuz State, W Ethiopia

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Journal of Earth Science and Engineering 2015年第7期5卷 417-435页

作者： Liam A. Bullock Owen J. morgan School of Geoscienees University of Aberdeen Aberdeen AB24 3UE United Kingdom Tactical Environmental Response Yorkshire LS29 9BZ United Kingdom

The Assosa region of western Ethiopia hosts newly discovered and potentially highly economic graphite-bearing schist units. Due to its unique physical and chemical properties, graphite is quickly becoming an increasingly important economic resource. Graphite occurs over much of the area, and is hosted predominantly by quartz-graphitic schist, quartz-feldspar-mica schist and quartzite. The quartz-graphitic schist covers an area of 37 km2, forming steep valleys and ridges across a 190 km long belt. Graphite is texturally-variable within and across units. Crystal habit varies from highly crystalline to irregular flakes. Flake sizes range from amorphous and crystalline small flake to coarse large flake （〉 150 p.m）, with beneficiation of- 70% and yield potential of 〉 95% （froth flotation methods）. The license area is already a well-known gold-hosting area, and potentially economic gold deposits occur within the graphite-bearing units. Overall, the site shows excellent geochemical indicators, field observations and historical accounts of high gold content. It is suggested that textural variations may be the product of （1） early in-situ formation during （early- to late-Proterozoic） prograde metamorphism and （2） later vein-type mineralization during retrograde metamorphism. The discovery of graphite in western Ethiopia is the first documented and preliminary studies suggest a high economic potential for the deposits.

关键词： Graphite gold metamorphism X-ray fluorescence X-ray diffraction.