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Chinese Quarterly Journal of mathematics 1988年第3期 61-65页

作者： fred Buckley Frank Harary 巴鲁克学院(CUNY)数学系新墨西哥州立大学数学计算机科学系

本文讨论了导出迂回数的极值问题,特别地在给出顶点数和边数的所有图及所有二分图中找到了导出迂回数的最大值。

关键词： length Case

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第一家居室

城市住宅 1998年第12期5卷 74-76页

作者： fred Chan Daniel Wong 今日设计 DDP Design & Production Co

关键词：居室室内装饰二室二厅 62m^2

A PERFORmANCE EVALUATION OF SEQUENCING BATCH REACTORS-FIELD EXPERIENCE IN THE STATE OF OKLAHOmA,USA

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A PERFORMANCE EVALUATION OF SEQUENCING BATCH REACTORS-FIELD ...

Agromorphological Characterization of Introgression Lines Derived from Wild and Exotic Sorghum Germplasm to Climate Change Challenges

International Conference on Water & Wastewater

作者： H.J.Thung fred J.Spitz Tiger Y.J.Feng Oklahoma State Department of Health Oklahoma CityOKUSA Consulting Engineer Oklahoma CityOKUSA Oklahoma State Department of Health Oklahoma CityOKUSA

＜正＞INTRODUCTION Provisions in the Clean Water Act of 1977 and its amendments,which encourage the use of innovative and alternative technology in municipal wastewater treatment, is,perhaps,one of the major reasons for the recent resurgence of batch or semi- batch process in the United *** addition to the monetary incentives to the municipalities,the consulting engineers have also become interested in the Sequencing Batch Reactor（SBR）technology because of the following system characteristics:First,the batch reactor has flexibility to hydraulic and organic ***,the availability of process controllers makes the application of batch and semi-batch systems become ***, nitrification/denitrification and phosphorus removal can be carried out in the same aeration basin and separate clarifiers are not ***,construction and operation and maintenance（O＆m）costs are significantly lower than the conventional continuous activated sludge process.

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Agricultural Sciences 2021年第10期12卷 1129-1149页

作者： Ouindyam Colette Ouédraogo Nerbéwendé Sawadogo Eva Weltzien Baloua Nebie fred Rattunde Aboubacar Touré Ibrahima Sissoko mahamadou Sawadogo Equipe Génétique et Amélioration des Plantes Laboratoire Biosciences Ecole Doctorale Sciences et Technologies Université Joseph Ki-Zerbo Ouagadougou Burkina Faso International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) Bamako Mali University of Wisconsin-madison Madison WI USA

Sorghum (Sorghum bicolor (L.) moench) is vitally important for food security in semi-arid West Africa. The introgression of wild- and high transpiration efficiency genotypes may contribute genes for abiotic stress tol... 详细信息

Sorghum (m>Sorghum bicolorm> (L.) moench) is vitally important for food security in semi-arid West Africa. The introgression of wild- and high transpiration efficiency genotypes may contribute genes for abiotic stress tolerance or novel traits. Characterizing the introgressed lines can help researchers in the process of varietal improvement. The objectives of this study are (i) To learn if introgression of wild sorghum (CWR) and high transpiration efficiency (HTE) lines into a very early maturing (photoperiod insensitive) local land-race variety can create useful variation for grain yield in drought-prone Sahelian environments, (ii) To determine if grain yield advantages (and putative drought tolerance traits) obtained from introgression of CWR and HTE germplasm are expressed differently in moderately to highly moisture-limited environments, and (iii) To understand the relationship between putative drought tolerance traits. These populations were developed from crosses between the CSm63E (Jakumbe, a high grains quality variety) and two wild parents (accessions) and five high transpiration efficiency (TE) sorghum accessions. Phenotyping was conducted using an alpha lattice design with three replications in two environments for agronomic traits (grain yield and components), flowering time and physiological traits (stay-green, chlorophyll content and lodging). A total of 669 BC1F5 progenies were developed. Genetic variation for grain yield and putative drought tolerant traits were evaluated. Both populations derived from wild parents exhibited in Cinzana a grain yield (>300 g/m2) greater than CSm63E (245 g/m2). In Bema, more than 75% of the progenies of all populations indicated a chlorophyll content at physiological maturity (>30 SPAD) higher than CSm63E (20 SPAD) chlorophyll content. The estimated broad sense heritability was generally high (≥0.50) for all traits. The results also showed a very significant interaction between genotype and e

关键词： Sorghum Transpiration Drought Variability Climate Change

加利福尼亚/内华达死谷北部地区航空可见光/红外成像光谱仪测量数据分析

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国外铀金地质 1994年第4期11卷 334-337页

作者： fred A.Kruse 崔振奎核工业北京地质研究院美 100029

作为航空可见光/红外成像光谱仪(AVIRIS)评价项目的一部分,1989年5月在死谷部分地区应用航空可见光/红外224道成像光谱仪(工作波长范围:0.41—2.45μm)进行了飞行。通过地面光谱及“经验线定标”技术,把测量数据转换成反射率,从影像上... 详细信息

作为航空可见光/红外成像光谱仪(AVIRIS)评价项目的一部分,1989年5月在死谷部分地区应用航空可见光/红外224道成像光谱仪(工作波长范围:0.41—2.45μm)进行了飞行。通过地面光谱及“经验线定标”技术,把测量数据转换成反射率,从影像上提取出反射光谱,并与野外和实验室光谱数据进行比较,以便识别矿物,如绢云母、(细粒白云母)、方解石、白云石、赤铁矿和针铁矿,用影像光谱的二进制编码来产生表示这些矿物的空间分布及铁氧化物与其他矿物共生的影像图,该图像与常规地质图及若干次野外工作填制的蚀变图吻合较好,不过也显示了几个原先未填出的碳酸盐岩露头及需要进一步进行野外填图的地区。

关键词：可见光红外成像光谱仪数据分析矿物

Sensitive detection of HIV-1 resistance to Zidovudine and impact on treatment outcomes in low-to middle-income countries

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Infectious Diseases of Poverty 2017年第1期6卷 1449-1461页

作者： Richard m.Gibson Gabrielle Nickel michael Crawford fred Kyeyune Colin Venner Immaculate Nankya Eva Nabulime Emmanuel Ndashimye Art F.Y.Poon Robert A.Salata Cissy Kityo Peter mugyenyi miguel E.Quinones-mateu Eric J.Arts Department of microbiology and Immunology University of Western Ontario1151 Richmond St.Dental Sciences Bldg.Rm 3014LondonOntario N6A 5C1Canada Division of Infectious Diseases Department of MedicineCase Western Reserve UniversityClevelandOHUSA Department of molecular Biology and microbiology Case Western Reserve UniversityClevelandOHUSA Department of Pathology Case Western Reserve UniversityClevelandOHUSA Center for AIDS Research Uganda Laboratories Joint Clinical Research CentreKampalaUganda Department of Pathology and Laboratory medicine University of Western OntarioKampalaUganda TREAT Joint Clinical Research CentreKampalaUganda

Background:Thymidine analogs,namely AZT(Zidovudine or Retrovir^(Tm))and d4T(Stavudine or Zerit^(Tm))are antiretroviral drugs still employed in over 75%of first line combination antiretroviral therapy(cART)in Kampala,Uganda despite aversion to prescribing these drugs for cART in high income countries due in part to adverse *** this study,we explored how the continued use of these thymidine analogs in cART could impact emergence of drug resistance and impact on future treatment success in Uganda,a low-income ***:We examined the drug resistance genotypes by Sanger sequencing of 262 HIV-infected patients failing a first line combined antiretroviral treatment containing either AZT or d4T,which represents approximately 5%of the patients at the Joint Clinical Research Center receiving a AZT or d4T containing *** generation sequencing(DEEPGEN^(Tm)HIV)and multiplex oligonucleotide ligation assays(AfriPOLA)were then performed on a subset of patient samples to detect low frequency drug resistant ***4 cell counts,viral RNA loads,and treatment changes were analyzed in a cohort of treatment success and ***:Over 80%of patients failing first line AZT/d4T-containing cART had predicted drug resistance to 3TC(Lamivudine)and non-nucleoside RT inhibitors(NNRTIs)in the treatment regimen but only 45%had resistance AZT/d4T associated resistance mutations(TAms).TAms were however detected at low frequency within the patients HIV quasispecies(1-20%)in 21 of 34 individuals who were failing first-line AZT-containing cART and lacked TAms by *** to lack of TAms by Sanger,AZT was typically maintained in second-line therapies and these patients had a low frequency of subsequent virologic ***:Our findings suggest that continued use of AZT and d4T in first-line treatment in low-to-middle income countries may lead to misdiagnosis of HIV-1 drug resistance and possibly enhance a succession of second-and third-line treatment failu

关键词： Antiretroviral treatment Drug resistance Uganda

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还原橙1(金黄RK)产品中的二(口恶)英

国际纺织导报 2018年第6期46卷 24-25页

作者： m.Hhnke 范春迎

还原金黄RK产品可能会因其所含二(口恶)英的量高于法律限定值而陷入困境。根据德国法律,若二(口恶)英含量超出限制,则任何与其相关的商业化运作都将被禁止,违规行为也将被依法起诉。自1976年意大利塞维索化学污染事故发生以来,二(口恶)... 详细信息

还原金黄RK产品可能会因其所含二(口恶)英的量高于法律限定值而陷入困境。根据德国法律,若二(口恶)英含量超出限制,则任何与其相关的商业化运作都将被禁止,违规行为也将被依法起诉。自1976年意大利塞维索化学污染事故发生以来,二(口恶)英一词已成为公众关注的焦点。研究发现,二(口恶)英的产生与生产条件有着极为显著的化学关联。

关键词：二噁英还原金黄RK 合成

Chemoprevention of esophageal adenocarcinoma

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Gastroenterology Report 2020年第4期8卷 253-260,I0001页

作者： Erik J.Snider Andrew m.Kaz John m.Inadomi William m.Grady Division of Gastroenterology Department of Internal MedicineUniversity of Washington School of MedicineSeattleWAUSA Gastroenterology Section VA Puget Sound Health Care SystemSeattleWAUSA Clinical Research Division Fred Hutchinson Cancer Research CenterSeattleWAUSA

Esophageal adenocarcinoma(EAC)is a major cause of cancer-related death,particularly in Western populations,and is rapidly rising in Asian populations at this *** all EACs develop from the precursor lesion Barrett’s esophagus(BE),which is the most significant risk factor for ***,the rates of progression from BE to EAC are low and patients with BE are ***,any strategy for EAC prevention must carry a low risk of harm in order to be clinically *** current EAC-screening and BE-surveillance methods carry some procedural risk and are burdensome,there is an opportunity for chemoprevention,*** or dietary factors that may prevent BE from progressing to EAC.A variety of candidate chemoprevention therapies have been assessed to ***-pump inhibitors(PPIs)are the best studied and have modest EAC-chemoprevention efficacy in BE patients,with a recent randomized trial showing that high-dose PPI may be more effective than low-dose *** and other non-steroidal anti-inflammatory drugs have moderate quality observational and randomized-trial evidence for preventing progression of BE to EAC,but their risks for harm have precluded their routine clinical *** therapies(statins,metformin,female sex hormones)generally do not have strong evidence to support their use in EAC *** progress has been made in this field,there is still a need for more effective and safe chemoprevention therapies for EAC.

关键词： Barrett’s esophagus esophageal adenocarcinoma chemoprevention

An Assessment of Water Quality Parameters at the Cerrillos Reservoir, Ponce, Puerto Rico in the Aftermath of Hurricane maria

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Journal of Water Resource and Protection 2022年第1期14卷 35-49页

作者： Yashira marie Sánchez-Colón Javier Alejandro Chévere-Del Río Nichole marie Sánchez-Guzmán fred Charles Schaffner Public Health Program Ponce Health Sciences University Ponce Puerto Rico Puerto Rico Department of Health San Juan Puerto Rico School of Science and Technology Universidad Ana G Méndez Gurabo Campus Gurabo Puerto Rico

maintaining the water quality of lakes and reservoirs is part of the 2030 Agenda for Sustainable Development, an initiative promoted by the United Nations, including anthropogenic and natural factors that may influence water quality. The water reservoirs of Puerto Rico were built in watersheds to provide runoff control and for primary uses. The Cerrillos Reservoir is one of the largest water reservoirs in southern Puerto Rico, and is used as a source of potable water and for recreational activities. After hurricane maria, in September 2017, many communities were without public water service and have obtained their drinking water from local rivers or their tributaries, without filtration or purification treatment. This research explored the physical-chemical parameters of Cerrillos Reservoir’s surface water from may 2018 to January 2019. The objective of the present study is to assess seasonal variations in surface water quality with respect to physical (temperature, turbidity, and conductivity), chemical (nutrient concentrations: (Phosphorus (P) (Soluble Reactive Phosphorus, phosphate, or orthophosphate) and Nitrogen (N) (nitrate, nitrite, and ammonia)), pH, and dissolved oxygen), and biological (total coliforms and m>Escherichia colim>) parameters. Results suggest that Cerrillos Reservoir did not exceed the parameters of temperature, turbidity, conductivity, pH and DO, established by the Puerto Rico Department of Natural and Environmental Resources (PRDNER). The reservoir showed a stable trophic state in relation to inorganic phosphorus and nitrogen as N and P concentrations did not increase sufficiently to disrupt this ecosystem. However, total coliforms exceeded the maximum parameter (23 mPN/100mL - 994 mPN/100mL) established for the Puerto Rico Department of Natural and Environmental Resources and are likely to be the results of the disruption caused by hurricane maria.

关键词： Cerrillos Reservoir Water Quality Puerto Rico Post Hurricane maria

The Impact of Body mass on male Fertility in a Cohort of 127 Patients

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Open Journal of Urology 2023年第11期13卷 469-475页

作者： Sossa Jean Fanou Lionelle Kikpadé Joachim Hounto Yao Félicien Yevi Dodji magloire Inès Hodonou fred martin Avakoudjo Déjinnin Josué Georges Clinique Universitaire d’Urologie-Andrologie Centre National Hospitalier Universitaire Hubert Koutoucou Maga Cotonou Benin

Background: Aromatase and leptin are two adipose tissue cytokines. The former converts androgens into estrogens and stimulates adipogenesis. The latter cannot fully stimulate GnRH release as its hypothalamic receptors are reduced in obese men. Thus, obesity which is associated with an adipose tissue increment can interfere with male fertility. Objective: We aim to study the correlation between the body mass index (BmI) of an individual and the quality of semen he produces. Patients and method: By means of the software R 4.2.1 we performed a retrospective analysis of the relationship between the BmI and the semen alterations in the patients managed at the former military Teaching Hospital of Cotonou from October 1, 2017, to September 30, 2022: a bi-varied analysis and Fischer’s exact test (significance threshold 5%, confidence interval 95%) followed by a logistic regression when a non-significant p-value is below 0.20. Results: 127 males managed for infertility (mean age = 36.2 years) were recorded, including 11.1% obese (BmI > 30 kg/m2) and 36.5% overweighted (25 kg/m2 mI ≤ 30 kg/m2). The most frequent semen alterations were: oligoasthenospermia (27.8%), asthenospermia (22.2%), oligoasthenoteratospermia (14.3%), azoospermia (13.5%) and asthenoteratospermia (9.5%). Bi-varied analysis showed no correlation between the BmI and the semen alterations (p-value ranged from 0.086 to 0.9) and no difference in semen alterations between patients with BmI below and above 25 kg/m2 (p-value ranged from 0.12 to 0.9). Logistic regression demonstrated that asthenoteratospermia were correlated with BmI ≥ 25 kg/m2 [OR = 2.1, 95% CI (1.50 - 2.70), p = 0.021]. Conclusion: male obesity and overweight can trigger asthenoteratospermia.

关键词： Body mass Index male Infertility Semen Alterations