检索结果-南通市图书馆

Making Family Planning Services Relevant to Adolescents: Perspectives from Rural Communities in Central Ghana

Open Journal of Preventive Medicine 2014年第11期4卷 852-859页

作者： Yeetey Enuameh Charlotte Tawiah Samuel Afari-Asiedu Obed Ernest A. Nettey Abubakari Sulemana Emmanuel Mahama George Adjei Ellen Boamah alex manu Stephanie Gyaase Charles Zandoh Nelson Amanfo Kwaku Poku Asante Timothy Letsa Seth Owusu-Agyei Kintampo Health Research Centre (KHRC) Kintampo Ghana Drexel University School of Public Health Philadelphia USA Regional Health Directorate Ghana Health Service Sunyani Ghana

In lower middle-income countries like Ghana, it is common to find low contraceptive use among adolescents with corresponding high pregnancy outcomes. Evidence points to the fact that the use of contraceptives prevents maternal, neonatal and infant deaths, but in most lower middle-income countries, socio-cultural practices inhibit adolescents’ use. Ensuring the uptake of family planning among adolescents is deemed a necessary means of reducing maternal, neonatal and infant mor-tality. This manuscript seeks to provide contextually relevant approaches to satisfying family planning needs of adolescents in a population lacking it. We employed a qualitative study design from an interpretive paradigm with phenomenology as the methodology to understand societal attitudes towards family planning delivery to adolescents, so as to arrive at contextually appro-priate ways of providing family planning to this needy group. Focused group discussions and in-depth interviews techniques were used in data collection among adolescents, relevant commu-nity opinion leaders and family planning & health services providers. Themes that emerged from data analysis with respect to “perspectives on family planning care delivery to adolescents” and “best ways in addressing adolescents’ family planning needs” are presented, followed by discussion of the issues emerging. A significant and encouraging finding of the study was that opinion leaders and healthcare providers viewed family planning as a means of protecting adolescents against pregnancies and their complications. A key recommendation is for policy makers and political leaders to enact legislations that enable adolescents to have friendly family planning service delivery in all places and at all times.

关键词： Adolescents Young People Family Planning Kintampo Ghana

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Influence of carbide ceramic reinforcements in improving tribological properties of A333 graded hybrid composites

引用

Defence Technology（防务技术） 2022年第7期18卷 1107-1123页

作者： manu Sam N.Radhika Department of Mechanical Engineering Amrita School of EngineeringCoimbatore641112Amrita Vishwa VidyapeethamIndia

Aluminium hybrid functionally graded metal matrix composites(FGMMCs),meet growing demands for supreme tribo-mechanical performance in automotive and aviation *** research experimentally compares the influence of carbide ceramics(B_(4)C,SiC,TiC)as reinforcements,in improving reciprocating tribology performance and mechanical strength of A333 hybrid composites against *** cylindrical samples of A333/6 wt%B_(4)C/4 wt%TiC and A333/6 wt%B_(4)C/4 wt%SiC hybrid FGMMCs were developed using horizontal centrifugal *** analysis on both composites revealed increasing ceramic gradient distribution towards outer composite *** rich zone of A333/B_(4)C/SiC hybrid FGMMC showed maximum micro-hardness(198.9 HV)and tensile strength(267.9 MPa).Elemental mapping confirmed effective distribution of ceramics and detected elemental composition of both *** rich layer of A333/B_(4)C/SiC hybrid FGMMC exhibited improved wear resistance in comparison with all three layers of A333/B_(4)C/TiC hybrid FGMMC and ***-body abrasion and tribo-chemical wear were the predominant mechanisms revealed for both composites during worn surface analysis.

关键词： Composites Functional Wear Carbide ceramics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nano-ayurvedic medicine and its potential in cancer treatment

引用

Journal of Integrative Medicine 2023年第2期21卷 117-119页

作者： manu Lopus School of Biological Sciences UM-DAE Centre for Excellence in Basic SciencesUniversity of Mumbai Kalina CampusVidyanagariMumbai 400098India

Nano-ayurvedic medicine is an emerging field in which nanoparticles are functionalized with active principles of potent ayurvedic herbs to enhance their efficacy and target-specific *** advances in the past couple of decades have revealed the molecular mechanisms behind the anticancer potential of several ayurvedic herbs,attributed chiefly to their secondary metabolites including polyphenols and other active *** the advancement of nanotechnology,it has been established that size-,shape-,and surface-chemistry-optimized nanoparticles can be utilized as synergizing carriers for these ***-ayurvedic medicine utilizes herbs that are commonly used in Ayurveda to functionalize different nanoparticles and thereby enhance their potency and target *** have shown that the active phytochemicals of such herbs can be coated onto the nanoparticles of different metals,such as gold,and that they work more efficiently than the free herbal extract,for example,in inhibiting cancer cell ***,an Ayurveda,Yoga&Naturopathy,Unani,Siddha and Homeopathy(AYUSH)-based clinical trial in humans indicated the anticancer potential of such ***-ayurvedic medicine is emerging as a potential treatment option for hyperproliferative diseases.

关键词： Nano-ayurvedic medicine Nanomedicine Cancer Cell cycle Apoptosis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A restriction theorem for Grushin operators

引用

Frontiers of Mathematics in China 2016年第2期11卷 365-375页

作者： Heping LIU manu SONG School of Mathematical Sciences Peking University Beijing 100871 China School of Natural and Applied Sciences.Northwestern Polyteehnical University Xi'an 710129 China

We study the Grushin operators acting on Rx d1× Rt d2 and defined by the formula L -∑ j d1=1 xj-∑ j d1=1｜xj｜2 ∑ k d2=1 2 tk. We establish a restrictiontheorem associated with the considered operators. Our result is an analogue of the restriction theorem on the Heisenberg group obtained by D. Muller [Ann. ofMath., 1990, 131： 567-587].

关键词： Grushin operator scaled Hermite operator restriction operator

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Extracorporeal shock wave lithotripsy for pancreatic and large common bile duct stones

引用

World Journal of Gastroenterology 2011年第39期17卷 4365-4371页

作者： manu Tandan D Nageshwar Reddy Reddy Asian Institute of Gastroenterology 6-3-652 SomajigudaHyderabad 500 082India

Extraction of large pancreatic and common bile duct(CBD)calculi has always challenged the therapeutic *** shockwave lithotripsy(ESWL)is an excellent tool for patients with large pancreatic and CBD calculi that are not amenable to routine *** calculi in the head and body are targeted by ESWL,with an aim to fragment them to<3 mm diameter so that they can be extracted by subsequent endoscopic retrograde cholangio-pancreatography(ERCP).In our experience,complete clearance of the pancreatic duct was achieved in 76% and partial clearance in 17%of 1006 ***-term pain relief with reduction in the number of analgesics ingested was seen in 84%of these *** large CBD calculi,a nasobiliary tube is placed to help target the calculi,as well as bathe the calculi in salinea simple maneuver which helps to facilitate *** aim is to fragment calculi to<5 mm size and clear the same during *** clearance of the CBD was achieved in 84.4%of and partial clearance in 12.3%of 283 *** than 90%of the patients with pancreatic and biliary calculi needed three or fewer sessions of ESWL with 5000 shocks being de-livered at each *** use of epidural anesthesia helped in reducing patient ***,together with the better focus achieved with newer third-gen-eration lithotripters,prevents collateral tissue damage and minimizes the *** in our experience with nearly 1300 patients were minimal,and no extension of hospital stay was *** rates of clearance of pancreatic and biliary calculi with minimal adverse effects have been reported from the centers where ESWL is performed *** view of its high efficiency,non-invasive nature and low complication rates,ESWL can be offered as the first-line therapy for selected patients with large pancreatic and CBD calculi.

关键词： Pancreatic calculi Extracorporeal shock-wave lithotripsy Common bile duct calculi

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Endotherapy in chronic pancreatitis

引用

World Journal of Gastroenterology 2013年第37期19卷 6156-6164页

作者： manu Tandan D Nageshwar Reddy Department of Medical Gastroenterology Asian Institute of Gastroenterology

Chronic pancreatitis(CP)is a progressive disease with irreversible changes in the *** commonly present with pain and with exocrine or endocrine *** therapeutic efforts in CP are directed towards relief of pain as well as the management of associated *** therapy offers many advantages in patients with CP who present with ductal calculi,strictures,ductal leaks,pseudocyst or associated biliary *** offers a high rate of success with low morbidity in properly selected *** procedure can be repeated and failed endotherapy is not a hindrance to subsequent *** pancreatic sphincterotomy is helpful in patients with CP with minimal ductal changes while minor papilla sphincterotomy provides relief in patients with pancreas divisum and chronic *** shock wave lithotripsy is the standard of care in patients with large pancreatic ductal *** term follow up has shown pain relief in over 60%of patients.A transpapillary stent placed across the disruption provides relief in over 90%of patients with ductal *** ductal strictures are managed by single large bore *** stents are placed for *** associated benign biliary strictures(BBS)are best treated with multiple plastic stents,as the response to a single plastic stent is *** self expanding metal stents are increasingly being used in the management of BBS though further long term studies are *** are best drained endoscopically with a success rate of 80%-95%at most ***(EUS)has added to the therapeutic armamentarium in the management of patients with *** of pseudcysts,cannulation of inaccessible pancreatic ducts and celiac ganglion block in patients with intractable pain are all performed using *** should be offered as the first line of therapy in properly selected patients with CP who have failed to respond to med

关键词： Chronic pancreatitis Endoscopic retrograde cholangiopancreatography Pancreatic sphincterotomy Extracorporeal shockwave lithotripsy Endosonography

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of machining parameters on edge-chipping during drilling of glass using grinding-aided electrochemical discharge machining （G-ECDM）

引用

Advances in manufacturing 2018年第2期6卷 215-224页

作者： V. G. Ladeesh R. manu Department of Mechanical Engineering National Institute of Technology Calicut Calicut Kerala 673601 India

The problem of eliminating edge-chipping at the entrance and exit of the hole while drilling brittle materials is still a challenging task in different industries. Grinding- aided electrochemical discharge machining （G-ECDM） is a promising technology for drilling advanced hard-to-ma- chine ceramics, glass, composites, and other brittle mate- rials. Edge-chipping at the entrance of the hole can be fully eliminated by optimizing the machining parameters of G-ECDM. However, edge-chipping at the exit of the hole is difficult to eliminate during the drilling of ceramics and glass. This investigation suggests some practical ways to reduce edge-chipping at the exit of the hole. For this pur- pose, a three-dimensional finite element model was developed, and a coupled field analysis was conducted to study the effect of four parameters, i.e., cutting depth, support length, applied voltage, and pulse-on time, on the maximum normal stress in the region where the edge- chipping initiates. The model is capable of predicting the edge-chipping thickness, and the results predicted by the model are in close agreement with the experiment results. This investigation recommends the use of a low voltage and low pulse-on time at the hole entrance and exit when applying G-ECDM to reduce the edge-chipping thickness. Moreover, the use of a full rigid support in the form of a base plate or sacrificial plate beneath the workpiece can postpone the initiation of chipping by providing support when the tool reaches the bottom layer of the workpiece, thereby reducing the edge-chipping thickness.

关键词： Grinding-aided electrochemical dischargemachining (G-ECDM) Finite element analysis Edge-chipping - Maximum normal stress

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Microstructure transformations and improving wear resistance of austenitic stainless steel additively fabricated by arc-based DED process

引用

Defence Technology（防务技术） 2024年第8期38卷 194-204页

作者： Ashish Yadav manu Srivastava Prashant K.Jain Sandeep Rathee Hybrid Additive manufacturing Laboratory Mechanical Engineering DepartmentPDPM Indian Institute of Information TechnologyDesign&ManufacturingJabalpur482005Madhya PradeshIndia FFF Laboratory Mechanical Engineering DepartmentPDPM Indian Institute of Information TechnologyDesign&ManufacturingJabalpur482005Madhya PradeshIndia Department of Mechanical Engineering National Institute of TechnologySrinagarIndia

In this study, austenitic stainless steel(ASS) was additively fabricated by an arc-based direct energy deposition(DED) technique. Macrostructure, microstructure, mechanical characteristics at different spatial orientations(0°, 90°, and 45°), and wear characteristics were evaluated at the deposited structure top, middle, and bottom regions. Results show that austenite(γ) and delta-ferrite(δ) phases make up most of the microstructure of additively fabricated SS316LSi steel. Within γ matrix, δ phase is dispersed both(within and along) grain boundaries, exhibiting a fine vermicular morphology. The bottom, middle,and top regions of WAAM deposited ASS exhibit similar values to those of wrought SS316L in the tensile and impact test findings. Notably, a drop in hardness values is observed as build height increases. During SEM examinations of fractured surfaces from tensile specimen, closed dimples were observed, indicating good ductility of as-built structure. Wear test findings show signs of mild oxidation and usual adhesive wear. By depositing a mechanically mixed composite layer, an increase in the oxidation percentage was discovered to facilitate healing of worn surfaces. The findings of this study will help in design, production and renovation of products/components that are prone to wear. WAAM-deposited ASS has remarkable strength and ability to withstand impacts;it can be used in the production of armour plates for defence applications, mainly military vehicles and aircraft.

关键词： Metal additive deposition Defence applications Arc-based DED Characterization Wear behaviour Fractography

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Synthesis of plant-based biogenic jarosite nanoparticles using Azadirachta indica and Eucalyptus gunni leaf extracts and its application in Fenton degradation of dicamba

引用

Water Science and Engineering 2024年第2期17卷 157-165页

作者： Shivaswamy Bhaskar Basavaraju manu Marikunte Yanjarappa Sreenivasa Arlapadavu Manoj Department of Civil Engineering National Institute of Technology CalicutKozhikode 673601KeralaIndia Deparment of Civil Engineering National Instute of Techogy KamatakaSurahalP.Srinivasnaga Mangaore5725Indi Department of Studies in Microbiology University of MysoreMysuru 570006KarnatakaIndia Department of Civil Enginering Siddaganga Institute of TechnologyTumkur 572103India

Bio-jarosite,an iron mineral synthesized biologically using bacteria,is a substitute for iron catalysts in the Fenton oxidation of organic *** nanocatalysts have been widely used as Fenton catalysts because they have a larger surface area than ordinary catalysts,are highly recyclable,and can be treated *** study aimed to explore the catalytic properties of bio-jarosite iron nanoparticles syn-thesized with green methods using two distinct plant species:Azadirachta indica and Eucalyptus *** focus was on the degradation of dicamba via Fenton *** synthesized nanoparticles exhibited different particle size,shape,surface area,and chemical composition *** particles were effective in removing dicamba,with removal efficiencies of 96.8%for *** bio-jarosite iron nano-particles(ABFeNPs)and 93.0%for *** bio-jarosite iron nanoparticles(EBFeNPs)within 120 min of *** the catalyst dosage by 0.1 g/L resulted in 7.6%and 43.0%increases in the dicamba removal efficiency for EBFeNPs and ABFeNPs with rate constants of 0.025 min^(-1) and 0.023 min^(-1),respectively,confrming their catalytic ***,the high efficiency of both catalysts was demonstrated through five consecutive cycles of linear pseudo-first-order Fenton oxidation reactions.

关键词： Acidithiobacillus ferrooxidans Fenton process Jarosite Herbicide Dicamba Azadirachta indica Eucalyptus gunni

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of tool plunge depth on reinforcement particles distribution in surface composite fabrication via friction stir processing

引用

Defence Technology（防务技术） 2017年第2期13卷 86-91页

作者： Sandeep Rathee Sachin Maheshwari Arshad Noor Siddiquee manu Srivastava Division of manufacturing Processes and Automation Engineering(MPAE) Netaji Subhas Institute of Technology Department of Mechanical Engineering Jamia Millia Islamia A Central University

Aluminium matrix surface composites are gaining alluring role especially in aerospace, defence, and marine industries. Friction stir processing(FSP) is a promising novel solid state technique for surface composites fabrication. In this study, AA6061/SiC surface composites were fabricated and the effect of tool plunge depth on pattern of reinforcement particles dispersion in metal matrix was investigated. Six varying tool plunge depths were chosen at constant levels of shoulder diameter and tool tilt angle to observe the exclusive effect of plunge variation. Process parameters chosen for the experimentation are speed of rotation, travel speed and tool tilt angle which were taken as 1400 rpm, 40 mm/min, and 2.5 °respectively. Macro and the microstructural study were performed using stereo zoom and optical microscope respectively. Results reflected that lower plunge depth levels lead to insufficient heat generation and cavity formation towards the stir zone center. On the other hand, higher levels of plunge depth result in ejection of reinforcement particles and even sticking of material to tool shoulder. Thus, an optimal plunge depth is needed in developing defect free surface composites.

关键词： Metal matrix composites Friction stir processing Tool plunge depth Microstructural characterization

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：