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Evaluating the Impact of the Universal Test and Treat Strategy on the Survival of Patients in the Northwest Region of Cameroon

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World Journal of AIDS 2024年第3期14卷 45-60页

作者： Emmanuel Mboh Nshom Bereynuy Jude Cholong Kum Kang Walter Khan Eveline Mboh Keng Vitalis Noela f. Ijang Gwendoline Nkenu Nsom Mirabel Mbueh Vifeme Esther Bonje Kuni Monju johnson Vishi Gladys Enih fosah Pius Muffih Tih AIDS Care and Prevention Program Cameroon Baptist Convention Health Services Bamenda Cameroon Regional Technical Group for the fight against HIV and AID Northwest Region Cameroon

Introduction: The main outcome of efficiently implemented universal test and treat (UTT) program is improved survival. UTT implementation has been ongoing in Cameroon since 2016 but evaluation data are scarce. This study aims to assess the survival of antiretroviral therapy (ART) patients initiated under UTT in Northwest region of Cameroon. Methods: This retrospective cohort study included HIV-positive patients initiated in 2016 at 27 purposefully selected sites and followed until 2021. Data was anonymously abstracted from ART registers and patients’ charts. Kaplan-Meier survival estimates and Cox model were used to compare the survival of patients initiated under UTT with those initiated otherwise, using stata version 14.0. Results: In total, 2490 HIV-positive patients (median age 42.7 years, 94.7% adults, and 69.0% female) participated in the study. Of 1389 patients with viral load (VL) test results, 55% were initiated on ART late. The VL suppression rate of patients initiated late and those initiated early were similar. During follow-up, 1020 (40.9%) participants censored. The survival curves of patients initiated early on ART and those initiated late were similar during the first 2.5 years of follow-up but significantly (p Conclusions: This study confirms the expected impact of UTT. Programs only need to close existing implementation gaps along the critical pathways (diagnosis and treatment) of UTT, focusing more on males.

关键词： Universal Test and Treat Viral Load Survival Northwest Cameroon

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不知何处? 不如此处新大陆永不消退的魅力,就在纽芬兰

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旅行者 2024年第4期 40-47页

作者：北北(文/图) Benjamin johnson(图) 不详

初踏上加拿大东端的离岸岛纽芬兰(Newfoundland)这片新大陆,我的感受大概和一千多年前维京人初发现这片土地的豪迈之感大相径庭——飞机抵达的鹿湖(Deer Lake)其实并没有鹿,我完全搞不懂本地人司机乔伊时不时蹦出的纽芬兰俚语,更别提旅... 详细信息

初踏上加拿大东端的离岸岛纽芬兰(Newfoundland)这片新大陆,我的感受大概和一千多年前维京人初发现这片土地的豪迈之感大相径庭——飞机抵达的鹿湖(Deer Lake)其实并没有鹿,我完全搞不懂本地人司机乔伊时不时蹦出的纽芬兰俚语,更别提旅伴在行程第一天就告知:冰山七月底大多融化漂走,海鹦鹉(Puffin)该飞的都飞了。

关键词：维京人新大陆乔伊本地人加拿大

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RADICAL GRAfTING REACTIONS ONTO STARCH AND OTHER WATER-SOLUBLE COPOLYMERS IN ISOLATED GEL DROPLETS

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Chinese Journal of Polymer Science 1993年第2期11卷 144-152页

作者：张连生 A.f.johnson Department of Chemistry and Chemical Technology University of Bradford Bradford BD7 IDP England Dpt.Chem.Heilongjiang Universiry24 Xuefu Road Harbin 150080 China Received December 231991. Department of Chemistry and Chemical Technology University of Bradford Bradford BD7 IDP England

A novel radical grafting copolymerization process has been designed for water-soluble polymers which avoids the problems of conducting grafting reactions in highly viscous polymerization media. A variety of water-soluble graft copolymers having starch or dextran as the backbone chain with grafted side chains of polyacrylamide (—AM—), poly (acrylic acid ) (—AA—), poly (acrylamide-co-acrylic acid) (—AM—NH_4AA—) or poly ( acrylamide-co-2-acryiamido-2-methyl-l-propanesulphinic acid) (—AM—AMPS—) have been synthesized in gel droplets using aceric sulphate redox initiator, and their properties compared. The reaction conditions were optimized taking into account reaction kinetic data and the observed properties of the products produced under different reaction conditions. The effects of the ratios of [backbone]/[graft monomer], [ AM]/[ AA]/[AMPS] , [Ce^(4+)]/[ S_2O_8=] and pH value on the reaction rate , conversion, grafting degree, grafted chain length and the product molecular weight have been investigated.

关键词： Radical grafting copolymerization Isolated gel droplets, Acrylamide Starch Kinetics

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富有更好

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中学生英语 2024年第39期 13-17页

作者： Linda Baten johnson 张宁

冬天的风穿透了我的外套,但并没有削弱我的快乐,因为我提着四罐自制的番茄罐头走进了教堂的地下室。我很高兴能在圣诞节参与到为我们社区中不富裕的人提供食物的活动中来,我和学校的同学们一起装箱送货。那年,我们去了博比的家。他在学...

冬天的风穿透了我的外套,但并没有削弱我的快乐,因为我提着四罐自制的番茄罐头走进了教堂的地下室。我很高兴能在圣诞节参与到为我们社区中不富裕的人提供食物的活动中来,我和学校的同学们一起装箱送货。那年,我们去了博比的家。他在学校比我高一个年级,但我从来不知道他很穷。当我们把箱子搬到那间小房子里时,我看到卧室是用床单挂在绳子上搭成的。当我们在那里的时候,博比回家了,他脸红了,消失在一个隔帘后面。

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Elite,transformable haploid inducers in maize

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The Crop Journal 2024年第1期12卷 314-319页

作者： Brent Delzer Dawei Liang David Szwerdszarf Isadora Rodriguez Gonzalo Mardones Sivamani Elumalai francine johnson Samson Nalapalli Rachel Egger Erin Burch Kerry Meier Juan Wei Xiujuan Zhang Huaping Gui Huaibing Jin Huan Guo Kun Yu Yubo Liu Becky Breitinger Ana Poets Jason Nichols Wan Shi David Skibbe Qiudeng Que Timothy Kelliher Seeds Development Syngenta SeedsJanesvilleWI 53546USA Seeds Research Syngenta Biotechnology China Co.Ltd.Beijing 102206China Centro de Investigación de Cultivos Arica Syngenta R&DArica 1000000Chile Syngenta S.A. Proyecto la SoledadGraneros 2880000Chile Seeds Research Syngenta Crop Protection LLCRTPNC 27709USA Seeds Development Syngenta SeedsSlaterIA 50244USA

The introduction of alleles into commercial crop breeding pipelines is both time consuming and *** technologies that are disrupting traditional breeding processes are doubled haploid(DH)breeding and genome editing(GE).Recently,these techniques were combined into a GE trait delivery system called HI-Edit(Haploid Inducer-Edit).In HI-Edit,the pollen of a haploid inducer line is reprogrammed to deliver GE traits to any variety,obviating recurrent *** HI-Edit to operate at scale,an efficient transformable HI line is needed,but most maize varieties are recalcitrant to transformation,and haploid inducers are especially difficult to transform given their aberrant reproductive *** marker assisted selection and a three-tiered testing scheme,we report the development of new Iodent and Stiff Stalk maize germplasm that are transformable,have high haploid induction rates,and exhibit a robust,genetically-dominant anthocyanin native trait that may be used for rapid haploid *** show that transformation of these elite‘‘HI-Edit”lines is enhanced using the BABYBOOM and WUSCHEL morphogenetic ***,we evaluate the HI-Edit performance of one of the lines against both Stiff Stalk and non-Stiff Stalk *** strategy and results of this study should facilitate the development of commercially scalable HI-Edit systems in diverse crops.

关键词： Zea mays L Doubled haploids Transformation Genome editing QTL

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Impact of COVID-19-related lifestyle changes on diabetic macular edema

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International Journal of Ophthalmology(English edition) 2024年第1期17卷 97-106页

作者： Bryce P.johnson Yu-Guang He Zachary M.Robertson Angeline Wang Rafael L.Ufret-Vincenty Department of Ophthalmology UT Southwestern Medical CenterDallasTexas 75390-9057USA

AIM:To assess diabetic macular edema(DME)progression during the early phases of the COVID-19 pandemic,when severe societal restrictions raised the concern of possible deterioration of health in patients with systemic conditions,particularly those requiring frequent office ***:This is a multicenter retrospective chart review of 370 patients(724 eyes)with an established diagnosis of DME seen on 3 separate visits between January 2019 and July *** 1 was January 2019 to february 2020(considered pre-COVID-19),period 2 was March 2020 to December 2020(considered the height of the pandemic;highest level of pandemic-related clinical and societal regulations)and period 3 was January 2021 to July 2021(re-adjustment to the new“pandemic norms”).Main outcome measures included visual acuity,body mass index(BMI),blood pressure(BP),hemoglobin A1c(HbA1c),macular thickness,patient adherence to scheduled ophthalmology visits,and DME treatment(s)received at each *** facilitate measurement of macular thickness,each macula was divided into 9 Early Treatment Diabetic Retinopathy Study(ETDRS)-defined macular sectors as measured by OCT ***:There was no change of BMI,systolic BP,and diastolic BP between any of the time ***1c showed a very small increase from period 1(7.6%)to period 2(7.8%,P=0.015)and decreased back to 7.6%at period 3(P=0.12).Macular thickness decreased for 100%of macular *** central macular thickness decreased across all 3 periods from 329.5 to 316.6μm(P=0.0045).After analysis of multiple variables including HbA1c,BMI,adherence to scheduled appointments,different clinic centers,and treatment interventions,there was no easily identifiable subgroup of patients that experienced the increase in ***:DME doesn’t worsen during the COVID-19 pandemic,instead sustaining a very small but statistically significant *** identifying a mechanism behind our findings is beyond the scope of this study,potential explanat

关键词： COVID-19 diabetic macular edema diabetic retinopathy optical coherence tomography

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Common-path interferometric label-free protein sensing with resonant dielectric nanostructures

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Light(Science & Applications) 2020年第1期9卷 1086-1094页

作者： Isabel Barth Donato Conteduca Christopher Reardon Steven johnson Thomas f.Krauss Department of Physics University of YorkYO105DD YorkUK Department of Electronic Engineering University of YorkYO105DD YorkUK

Research toward photonic biosensors for point-of-care applications and personalized medicine is driven by the need for high-sensitivity,low-cost,and reliable *** the most sensitive modalities,interferometry offers particularly high performance,but typically lacks the required operational simplicity and ***,we introduce a common-path interferometric sensor based on guided-mode resonances to combine high performance with inherent *** sensor exploits the simultaneous excitation of two orthogonally polarized modes,and detects the relative phase change caused by biomolecular binding on the sensor *** wide dynamic range of the sensor,which is essential for fabrication and angle tolerance,as well as versatility,is controlled by integrating multiple,tuned structures in the field of *** approach circumvents the trade-off between sensitivity and dynamic range,typical of other phase-sensitive modalities,without increasing *** sensor enables the challenging label-free detection of procalcitonin,a small protein(13 kDa)and biomarker for infection,at the clinically relevant concentration of 1 pg mL^(−1),with a signal-to-noise ratio of *** result indicates the utility for an exemplary application in antibiotic guidance,and opens possibilities for detecting further clinically or environmentally relevant small molecules with an intrinsically simple and robust sensing modality.

关键词： dielectric integrating simplicity

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Comparative Analysis of Machine Learning Models for Customer Churn Prediction in the U.S. Banking and financial Services: Economic Impact and Industry-Specific Insights

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Journal of Data Analysis and Information Processing 2024年第3期12卷 388-418页

作者： Omoshola S. Owolabi Prince C. Uche Nathaniel T. Adeniken Oghenekome Efijemue Samuel Attakorah Oluwabukola G. Emi-johnson Emmanuel Hinneh Department of Data Science Carolina University Winston-Salem NC USA Department of Computer Science Austin Peay State University Clarkesville TN USA Department of Statistical Sciences Wake Forest University Winston-Salem NC USA

Customer churn poses a significant challenge for the banking and finance industry in the United States, directly affecting profitability and market share. This study conducts a comprehensive comparative analysis of machine learning models for customer churn prediction, focusing on the U.S. context. The research evaluates the performance of logistic regression, random forest, and neural networks using industry-specific datasets, considering the economic impact and practical implications of the findings. The exploratory data analysis reveals unique patterns and trends in the U.S. banking and finance industry, such as the age distribution of customers and the prevalence of dormant accounts. The study incorporates macroeconomic factors to capture the potential influence of external conditions on customer churn behavior. The findings highlight the importance of leveraging advanced machine learning techniques and comprehensive customer data to develop effective churn prevention strategies in the U.S. context. By accurately predicting customer churn, financial institutions can proactively identify at-risk customers, implement targeted retention strategies, and optimize resource allocation. The study discusses the limitations and potential future improvements, serving as a roadmap for researchers and practitioners to further advance the field of customer churn prediction in the evolving landscape of the U.S. banking and finance industry.

关键词： Churn Prediction Machine Learning Economic Impact Industry-Specific Insights Logistic Regression Random forest Neural Networks

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STUDIES ON SYNTHESIS, STRUCTURE AND REACTIVITY Of ACTIVATED Os_6 RAfT-LIKE CLUSTERS

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Science China Chemistry 1990年第4期33卷 385-392页

作者：刘家础 B.f.G.johnson J.LEWIS fujian Institute of Research on the Structure of Matter Academia Sinica Fuzhou 350002PRC University Chemical Laboratory Lensfield Road Cambridge CB2 1EW U K

In this paper we report the synthesis and activation of OS-6 raft-llke planar clusters. The activated OS-66 raft-like clusters [OS-66(CO)_(20)(MeCN)] and [OS-66(CO)_(19) (MeCN)_2] have been prepared by involving PdCl_2 as catalyst. Trimethylamine oxide (Me_3NO) has been used as an activation reagent to oxidize several carbonyl ligands coordinated in the activated clusters and to get a series of activated OS-66 raft-like clusters [OS-66(CO)_(21-x)(MeCN)_x] (n = 1--5) and corresponding substituted clusters [OS-66(CO)_(21-x)(P(OMe)_3)_x] (n=1--5). The structures of these OS-66 raft-like clusters have been characterized by the infrared spectra (IR), nuclear magnetic resonance spectra (NMR) and mass spectra (MS), and the characters of the raft-like planar structure and reactivity above have also been discussed in this paper.

关键词： Os raft-like clusters coupling reaction aetivation.

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fRAP 2.0:a community engagement method applied to cervical cancer disparities among Hispanic women

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family Medicine and Community Health 2024年第S2期12卷 44-57页

作者： Autumn M Kieber-Emmons Susan E Hansen Michael Topmiller Jaskaran Grewal Carlos Roberto Jaen Benjamin f Crabtree William L Miller Department of family Medicine Lehigh Valley Health NetworkAllentownPennsylvaniaUSA College of Medicine USFTampaFloridaUSA Lehigh Valley Health Network AllentownPennsylvaniaUSA American Academy of family Physicians-Health Landscape CincinattiOHUSA Lafayette College EastonPennsylvaniaUSA UT Health San Antonio San AntonioTexasUSA Rutgers Robert Wood johnson Medical School PiscatawayNew JerseyUSA Cancer Institute of New Jersey New BrunswickNew JerseyUSA

focused Rapid Assessment Process(fRAP)2.0 is a community engagement approach combining geospatial mapping with rapid qualitative assessment in cyclical fashion within communities to capture multifactorial and multilevel features impacting primary care *** 2.0 offers primary care researchers a methodology framework for exploring complex community features that impact primary healthcare delivery and *** fRAP 2.0 study design expands the fRAP from a sequential design to a cyclical process of geospatial mapping and rapid qualitative assessment in search of modifiable contextual *** participants are stakeholders from various socioecological levels whose perspectives inform study outcomes that they may use to then become the agents of change for the very problems they helped ***,we present a proof-of-concept study for fRAP 2.0 examining disparities in cervical cancer mortality rates among Hispanic women in *** primary outcomes of interest are features at the community level,medical health system level and regional government policy levels that offer opportunities for collaborative interventions to improve cervical cancer *** this study,geospatial mapping of county and ZIP code-level variables impacting postdiagnosis cervical cancer care at community,medical and policy levels were created using publicly available data and then overlaid with maps created with Texas Cancer Registry data for cervical cancer cases in three of the largest population *** disparate areas were then qualitatively explored using participant observation and ethnographic field work,alongside 39 key informant *** discussion groups and stakeholder engagement existed at every phase of the *** the fRAP 2.0 method,we created an action-oriented roadmap of next steps to improve cervical cancer care disparities in the three Texas counties with emphasis on the high disparity *** identified local change

关键词： cervical qualitative policy

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