bluuebunny/crossref_metadata_2025 huggingface dataset:
Cervical intramedullary spinal cavernoma in setting of unresolved myelopathy: A case report
Authors: Nwachuku Enyinna , Duehr James , Kulich Scott , Marker Daniel , Moossy John
Published: July 2020

Background:

Spinal cavernous malformations are rare, accounting for approximately 5–12% of all spinal cord vascular lesions. Fortunately, improvements in imaging technologies have made it easier to establish the diagnosis of intramedullary spinal cavernomas (ISCs).

Case Description:

Here, we report the case of a 63-year-old male with an >11-year history of left-sided radiculopathy, ataxia, and quadriparesis. Initially, radiographic findings were interpreted as consistent with spondylotic myelopathy with cord signal changes from the C3-C7 levels. The patient underwent a C3-C7 laminectomy/foraminotomy with instrumentation. It was only after several symptomatic recurrences and repeated magnetic resonance images (MRI) that the diagnosis of a ventrally-located intramedullary lesion, concerning for a cavernoma, at the level C6 was established.

Conclusion:

Early and repeated enhanced MR studies may be required to correctly establish the diagnosis and determine the optimal surgical management of ISCs.
Adenovirüs ve Rotavirüs Gastroenterit Sıklığının Araştırılması
Authors: ÇİFTÇİ Nurullah , MAÇİN Salih
Published: July 2020

Amaç: Akut gastroenteritler, özellikle
çocukluk çağında görülmekle beraber her yaş grubundan insanı etkilemekte ve tüm
dünyada yaygın olarak görülen enfeksiyon hastalıkları arasında yer almaktadır.
Bu çalışmada, beş yıllık süreçte hastanemizde akut gastroenterit tanısı almış
çocuk ve yetişkin hastalarda adenovirüs ve rotavirüs sıklığının retrospektif
olarak incelenmesi amaçlanmıştır.

 

Gereç ve Yöntemler: Bu çalışmada, 1 Ocak 2014-31
Aralık 2018 tarihlerinde Tıbbi Mikrobiyoloji Laboratuvarına gönderilen dışkı
örneklerinde combo test kullanılarak rotavirüs ve adenovirüs pozitifliği
retrospektif olarak değerlendirilmiştir.

 

Bulgular: Bu çalışmaya dahil edilen toplam
18938 dışkı örneğinin 2615 (%13,8)’inde viral antijenler
saptanmıştır. Pozitif örneklerin 1686 (%64,5)’sı rotavirüs, 479 (%18,3)’u
adenovirüs, 450 (%17,2)’si hem adenovirüs hem de rotavirüs açısından pozitif
olarak tespit edilmiştir.

 

Sonuçlar: Sonuç olarak, yaptığımız
çalışmada akut viral gastroenterit etkenleri arasında en sık rotavirüs
antijenleri saptanmıştır. Viral antijenlerin yarısından fazlası 3 yaş altı
çocuklarda saptansada, ileri yaştaki insanlarda da pozitiflik tespit
edilmiştir. Akut gastroenteritli hastalardan viral antijenleri hızlı bir
şekilde saptanması ampirik antibiyotik tedavisi kullanılmasının önüne
geçecektir.
In-vivo evaluation of cisplatin nanoparticles encompass natural polymer
Authors: Bhavani J  , Sunil Kumar Prajapati  , Ravichandran S
Published: July 2020

Cancer is assemblage diseases involving abnormal cell growth amid the potential of spread to other parts of the body due to tobacco use are the cause of about of cancer deaths. Another 10% is due to obesity, poor diet & drinking alcohol. In 2012 about 14.1 million new cases of cancer occurred globally. In females, the most common type is breast cancer. Cisplatin also known as cytophosphane is a nitrogen mustard alkylating agent from the oxazophosphinans groups were used to treat cancers & autoimmune disorders. Based on the above reasons I will fix the aim Preparation characterization of Cisplatin- nano particles  &  its anticancer activity. Solid tumor volume examination report showed that the assessment of different day indication 15,20,25 & 30th variations of different groups of tumor volumes were decreased CPG Nanoparticles (100 mg/kg)+ DAL(15th day 4.97±0.24↓), (20th day 0.6±0.13↓), (25th day 1.35±0.30↓) & (30th day 1.89±0.13↓).
Anti-ulcer activity of methanol extract of Tectona grandis Linn
Authors: Shaheedha SM  , Hemalatha S
Published: July 2020

PUD is the most common disease that affects a majority of the population in the world and young people being the most affected out of all the ulcer patients. This disease involves a large number of causes like NSAID, malnutrition and deficiency, unhealthy lifestyles like chronic smoking and stress. In recent years, a rapid progressive understanding had been made concerning the mechanism of ulcers and its treatment protocols. Given the side effects of the available synthetic drugs, it calls for an investigation of newer medications which are of herbal origins. As per the literature, survey says Tectona grandis ethanol extract has been proved to show the anti-ulcer activity and considering the solubility and extractive capabilities of methanol over ethanol; the current research was performed to determine the anti-ulcer potency of methanol extract of Tectona roots. The results showed that Tectona methanol extract is way more efficient in treating ulcers in comparison to the standard drug omeprazole.
Substantiation of the ratio of biofuel and kerosin in the mixture for its application as aviation fuel
Authors: Samoylenko V. M. , Gryadunov K. I. , Timoshenko A. N. , Ardeshiri S.
Published: July 2020

Today, technologies for the production of alternative fuels and for the development of engines on different operating principles are actively developing, due to both the tightening of the environmental requirements of ICAO (International Civil Aviation Organization) for harmful emissions into the atmosphere and the depletion of non-renewable resources, and the interests of the oil importing countries. Strict requirements are imposed on the quality of aviation fuels related to ensuring the reliability of aviation technology and flight safety. Requirement toughening for quality indicators will inevitably lead to higher fuel prices, so today we can observe some concessions in domestic and foreign regulatory documents to certain quality indicators of aviation fuels, for example, to indicators of low-temperature properties. It follows that the use of petroleum fuels will sooner or later become inappropriate. Technologies to produce synthetic and biological fuels from various types of raw materials make it possible to obtain fuel with close quality indicators to traditional kerosene, but it has not yet been completely replaced. Therefore, today we are considering the use of alternative fuels in a mixture with petroleum kerosene in various proportions. The question remains open: in what proportion is it possible to use mixtures of alternative fuel with kerosene on the aircraft without any negative consequences for their operation. Based on the known dependencies, a mathematical model is proposed for calculating some operational indicators of fuel, engine and aircraft depending on the proportion of mixing alternative fuel and kerosene. In accordance with the calculations, the most rational ratio of petroleum kerosene and SPK fuel is substantiated both from the point of view of the necessary operational properties and from the point of view of economic feasibility.
Functional control of the technical condition method for aircraft control system sensors under complete parametric uncertainty
Authors: Bondarenko J. V. , Zybin E. Yu.
Published: July 2020

The control system sensors failures can cause the aircraft stability and controllability deterioration. Such failures fast and reliable inflight detection and localization allows minimization their consequences and prevention of an accident. Direct application of traditional parametric methods for sensors health monitoring with the use of their mathematical models is impossible due to the lack of information about the real inputs on their sensitive elements. This leads to the need for the problem of aircraft flight dynamics modeling with a high level of uncertainties to be solved, which complicates the application of functional test methods and determines the necessity of excessive sensors hardware redundancy. Widely known nonparametric methods either require a prior knowledge base, preliminary training, or long-term tuning on a large real flight data volume, or have low selective sensitivity for the failed sensors reliable localization. This paper expands the application of the well-known nonparametric failure detection criterion, based on the analysis of the linear dependence of the input-output data Hankel matrix columns and solution of the sensor failures localizing problem. Necessary and sufficient solvability conditions are given, the structure and the criterion values are determined in an analytical form before and after the failures occurrence. The proposed method does not require functional or hardware redundancy, prior information about the parameters of mathematical models and their stability, identification, observation, or prediction problems solution. The efficiency of the method is shown on the Boeing 747–100/200 longitudinal model example. Fast tuning, fast response and selective sensitivity of the developed algorithms are noted.
Frequency model of an essentially nonlinear steering drive with a digital microcontroller
Authors: Gryzin S. V.
Published: July 2020

When designing a stabilization system for highly maneuverable unmanned aerial vehicles (UAVs), one of the relevant tasks is to study the operation of the steering drive in the frequency band corresponding to the flexural vibrations of the UAV body. To ensure the stability of the UAV stabilization system, quite conflicting requirements may be imposed on the dynamic characteristics of the drive. In particular, the requirement for a sharp suppression of the amplitude-frequency characteristic at the frequency of UAV bending vibrations with minimal phase distortions in the control band of the longitudinal and lateral channels of the stabilization system can significantly complicate the task of researching the stability of the UAV motion control system. The article discusses an electric drive prototype with a digital microcontroller, designed for a highly maneuverable UAV. Adaptive algorithms of the digital controller make it possible to provide the necessary phase delays in the control frequency band and at the same time almost completely suppress the harmonic components of the control signals at the frequencies of the bending vibrations of the UAV body. The algorithms are essentially nonlinear in nature and are based on a change in the gain of the direct circuit of the drive depending on the frequency of the input signal, which greatly complicates the calculation of the transfer function of the steering drive for use in the frequency model of the stabilization system. Generally, the steering drive is described by a linear minimum-phase system, presented as a transfer function of one of the typical blocks of the first or second order, but for the specified steering drive with given dynamic characteristics, this approach is untenable. As a result of the study, a method for obtaining a frequency model of the steering drive is proposed, which is implemented as a non-minimum phase system, the main property of which is the independence of the amplitude-frequency and phase-frequency characteristics. In the process of research, the results obtained on the proposed model are compared with the results of experiments on a drive prototype and its complete non-linear time model. The main advantage of the proposed frequency model is a fairly simple description of the steering drive in the frequency domain, convenient for use as part of the frequency model of the stabilization system in the study of problems of ensuring the stability of UAV flight.
合作社基本功能研究的文献综述与逻辑思路
Authors: 谢 元态
Published: July 2020

本论文是统领国家社会科学基金项目《马克思主义合作理论：功能内涵、演进逻辑及创新发展》研究的总体设计之一。文献综述分为五个层次：马克思主义经典作家突出强调合作社本质属性和社会 - 政治基本功能；民国时期的学者和官员尤其强调合作社的政治与社会功能；新中国领导人建国初重点强调合作社的社会 - 政治功能；改革开放后国家领导人高度重视合作社发展，但学术界偏向于重视其经济功能；当代西方学者随着合作社发展在不同阶段重点研究不同的组织功能。论文设计了合作社的基本功能研究的逻辑思路：设定研究的对象和分析框架；整理逻辑及总体研究框架；确定研究的主要目标、重点与难点和基本思路。
中国经济体制改革为何能够成功？——战略与策略视角的研究
Authors: 张 玮航 , 刘 滨 , 谢 元态
Published: July 2020

西方学者热衷于研究“中国道路”和“中国经验”，论文以战略与策略为视角研究中国经济体制改革为何能够成功。首先，客观描述中国特色社会主义经济体制改革的背景——改革的依据、性质和对象。其次，阐述中国特色社会主义经济体制改革的战略部署——经济体制改革动力机制的形成、战略目标的确定、“五大环节”和战略步骤的设定。再次，阐述中国特色社会主义经济改革的方式与策略：①经济体制改革的方式是渐进式改革；②改革路径：前期“自下而上”，后期“自上而下”，而且具有先易后难、先试点后铺开两个特点；③从改革的顺序来看，实行的是“先农村，后城市”“先财政，后金融”“先消费资料领域，后生产资料领域”的顺序；④正确处理改革、发展和稳定三者之间的关系——稳定是压倒一切、发展是硬道理、改革都是解放生产力的重要手段；⑤提出了战略性、纲领性和引领性“创新、协调、绿色、开放、共享”的五大发展理念；⑥改革过程中，坚持中国共产党的领导，以制度和法律保障和巩固改革成果。最后，再进行总结与展望。通过上述六个方面的探究，勾勒出中国改革战略与策略关系图，展望中国未来的发展，一是要加强顶层设计，在基层探索中优化改革；二是要创新驱动改革，走中国特色的改革道路；三是要制度规范改革，在规范和法治中保障改革。
基于 Z 评分模型，对房地产企业信用风险的分析
Authors: 王 安
Published: July 2020

房地产行业作为国家基石建设中的一员，对经济稳定起到了巨大的作用。然而繁华背后，房地产行业前几年的快速膨胀所带来的泡沫阴影难以消除。高杠杆带来的短暂利好关系，却使企业陷入更深的经济陷阱中。如今，国家控制力度越来越大，融资成本越来越高，内忧外患的处境更应该为房地产企业敲醒警钟，论文从 Z-score 财务模型出发，结合判别分析对信用风险进行简要分析，从不同的财务指标阐述企业应注意的财务问题。
财务区域化管理在实践中的应用
Authors: 郑 华
Published: July 2020

财务管理根植于企业管理的每个环节，企业健康发展、实现预期的盈利目的都离不开财务管理的监督及执行功能。随着社会的不断发展，施工企业面临加速转型的严峻考验，管理要求不断增高。现阶段，施工企业大力提倡管理会计，且区域属地化经营条件已成熟，财务区域化集中管理模式应运而生。
中国钢材期货价格、现货价格关系实证研究——基于螺纹钢期货市场与现货市场数据
Authors: 陈 海琼 , 祁 春燕 , 陆 筠
Published: July 2020

中国是钢材生产和消费大国，在国民生产生活建设过程中，应用最为广泛的原材料之一便是钢材。受到国民经济的影响，钢材价格也会发生不断的波动，为了保障社会经济持续稳定的发展，减少钢材价格波动所造成的风险。中国证监会在 2009 年推出包括螺纹钢期货和线材期货在内的钢材期货，可以有效避免中国钢材生产商由于钢材价格的持续波动而带来严重的经济损失。论文主要针对中国钢材期货价格以及现货价格的关系进行探究，基于螺纹钢期货市场以及现货市场的交易数据，探究螺纹钢期货价格的变动，希望能为钢铁行业持续稳定的发展提供一定的参考。
论劳动力结构视域下农业社会化服务的调节作用
Authors: 蒋 晴
Published: July 2020

随着城市化进程加快，农村劳动力大量向城市转移，当前农业劳动力呈现兼业化、老龄化和女性化特征。农业劳动力结构缺失和弱质化降低了农业生产水平，部分地区甚至出现农地经营超小规模化和抛荒现象。如何改善农村劳动力转移带来的负面影响成为亟待解决的问题。然而，随着农业社会化服务行业的发展，农业社会化服务组织通过为小农户提供生产环节的分工化、专业化、机械化服务，一定程度缓解了农业劳动力转移背景下农业生产效率低、农业劳动力弱质化及结构不均等问题，为解决当前农村劳动力转移带来的负面影响提供了新的思路。因此，应鼓励和扶持农业社会化服务的市场供给，规范市场规则，优化农业要素的配置结构，不断推进中国农业的现代化发展。
钢铁企业供应链物流管理探讨
Authors: 尹 彦宾
Published: July 2020

物流是指产品或者信息由起点逐渐向重点发展的存储计划与管理过程。就钢铁企业的物流管理来讲，主要包括生产物流、采购物流、回收物流、销售物流等多个方面，在功能上主要体现在保管、运输、搬运、包装、配送、流通加工等。钢铁企业为了实现更好的发展，适应时代发展趋势，需要把供应链管理作为指导思想与战略目标，逐渐实现管理的流程化与信息化，促进物流功能的完善，通过供应链物流管理实施获得更好的利润。
建筑施工企业资金集中管理策略探析
Authors: 刘 刚
Published: July 2020

随着城镇化率的提升，中国建筑业的总体形势在较长时期内处于波动下滑状态，建筑施工企业“马太效应”逐步明显，普遍存在自有资金不足的现象。实行资金集中管理，不但可以使企业的整体资金优势发挥的更好，而且能对企业的运营结构进行合理的安排，有效的降低资金使用成本。论文通过简要阐述建筑施工企业资金集中管理的必要性，分析建筑施工企业资金集中管理中存在的问题，提出一些相应的完善策略。
浅谈国有企业财务人事管理的意义
Authors: 张 颖慧
Published: July 2020

随着中国经济的快速发展，国家越来越重视国有企业财务人事管理工作。为了进一步提升国有企业财务人事管理效率，必须要根据实际情况加强人事档案的处理成果，增强财务人事人员的定期培训，提高财务人事的专业知识了解情况。因此，论文主要针对现阶段的国有企业财务人事管理的重要性进行简要分析，并提出合理化建议。
“互联网 +”和大数据时代现代企业人力资源管理创新研究
Authors: 施 乃溶
Published: July 2020

现代企业的人力资源管理工作十分重要，人力资源管理系关乎着员工的个人发展，又关乎着企业的长远稳定发展。在现代化科学技术高速发展的背景之下，互联网加和大数据技术给现代企业人力资源管理技术带来了极大的变革。论文围绕“互联网 +”和大数据时代现代企业人力资源管理创新展开了分析探讨。
大数据背景下事业单位绩效管理体系建立的路径及相关思考
Authors: 路 帷
Published: July 2020

在互联网技术不断发展、成熟的背景下，大数据技术也给各行各业带来了巨大的影响，把其应用到企业和事业单位的绩效管理中也是必然趋势。社会竞争中人才起到了至关重要的作用，人才薪酬绩效的原有分配方式已经无法适应新时代的需要。基于当前大数据技术日新月异的背景下，需要建立新的体系。
中职金融专业教学中案例教学法应用探究
Authors: 焦 志菲
Published: July 2020

中等职业教育在教学过程中会更加注重学生在日后实用技术的培养，因为学校是为社会输送优秀技术型人才的重要来源地，所以在中职的教育过程中关于实践性的教学过程显得尤为重要。对于金融专业来说，必须要依靠大量的实践性课程来丰富学生的理论知识，教师在上课过程中可以选择一些案例作为上课的重点，以弥补实践性教学的缺陷，利用一些生活中的例子让学生对这些例子进行分析和概括，有效的提高学生学习和解决问题的能力。论文针对如何在金融教学课堂中融入案例教学的方法进行了探讨，为日后的教学提供参考。
试论当代企业经济管理问题的研究
Authors: 段 鑫华
Published: July 2020

随着时代一直在不断进步，中国的社会及经济发展也进入了一个全新的阶段。自从改革开放以来，中国的企业出现了非常大的变化。在当代企业的发展中，科学的企业经济管理理念是非常重要的，其可以辅助企业更好地解决方方面面的问题。但是，纵观当代的企业管理，仍然存在比较多的问题。面对这种情况，企业管理者一定要具备正确的企业管理理念，并按照企业的实际情况以及具体发展来解决问题。
现代职业教育背景下会计技能教学改革与创新
Authors: 翁 洁岚
Published: July 2020

目前，中国在职业教育这一方面投入了大量的资源，也培养了许多的应用型技术人才。在职业教育中会计专业是一门深受学生喜爱、应用面也十分广泛的专业。但是，在目前的职业教育中，会计专业学生都陷入了就业的困境，产生了一系列类似眼高手低、实践经验不足等问题。为了解决这一困境，论文探讨了现代职业教育背景下会计技能教学改革与创新。
海底捞股份有限公司财务报表分析
Authors: 杨 莉
Published: July 2020

企业财务报表分析是指以财务报表和其他资料为依据和起点，采用专门的方法，系统分析和评价企业过去及现在的经营成果、财务状况及其变动，以了解企业过去的经营业绩，衡量企业目前财务状况并且预测企业未来的发展趋势，帮助企业利益集团改善决策。论文以海底捞 2015 年至 2019 年的的财务报表等相关数据为基础，从偿债能力、盈利能力、营运能力及发展能力对其进行全面的分析，针对其存在的问题提出建议。
基于新经济增长理论的经济增长模式
Authors: 陈 培雄
Published: July 2020

西方经济增长理论建立在产量增加依赖于生产要素投入增加基础上。一般来说，一个国家的生产要素投入短时间内难以大幅增加，因此西方经济增长理论强调采用货币刺激政策。事实上，以 GDP 增加作为经济增长的衡量标准，它不是产量增加而是价值增加，忽略了价值理论的西方经济学从而无法正确解释经济增长。论文提出的新经济增长理论建立在新经济学基础上，从价值角度研究了经济增长模式，强调了交易配置实现经济增长的观点，进而提出了符合当前中国经济增长的具体实现方案，即通过三大要素的交易推动中国经济的增长。
O ENSINO DE QUÍMICA ATRÁVES DE UM CENTRO DE CIÊNCIAS AMAZÔNICO: UMA POSSIBILIDADE DE INSERÇÃO À CULTURA CIENTÍFICA
Authors: Tolosa Francisco Everdosa , Reis André Silva dos , Silva Maria Dulcimar de Brito
Published: July 2020

A pesquisa buscou relatar e debater através de enfoque qualitativo, de caráter exploratório, atividades desenvolvidas durante um “Dia Temático de Química” no Centro de Ciências e Planetário do Pará (CCPP), com alunos do 3° ano do Ensino Médio de uma Escola da Rede Pública de Ensino de Belém (PA). Na ocasião, os estudantes participaram de práticas experimentais, com vistas, a verbalizar ideias e a responder um questionário direcionado as atividades realizadas, bem como, fazer considerações sobre a proposta do “Dia Temático”. A análise dos resultados revela que a atividade foi relevante para os alunos, pois se sentiram confortáveis na exposição de ideias a respeito de alguns conceitos químicos, o que colabora na construção de novas concepções em relação a essa Ciência. Do mais, verificou-se que o CCPP, um espaço não formal de ensino, pode contribuir no processo de alfabetização científica.
O GEOGEBRA COMO POTENCIALIZADOR NA APLICAÇÄO DE FUNÇÃO EXPONENCIAL
Authors: Monteiro Roberta Borges , Alves Laranjeira Suyanne Rodrigues , De Andrade Leyde Dayane Martinho , Ribeiro Neto Jucicleia Gomes
Published: July 2020

Este trabalho apresenta uma experiência transcorrida a partir de uma proposta de atividade na disciplina Tópicos Especiais de Cálculo do Mestrado Profissional em Ciências da Universidade Estadual de Roraima - UERR, no segundo semestre de 2016 com o objetivo de analisar como o software GeoGebra contribui para a resolução de um problema que propunha determinar como ocorre o processo de eliminação do medicamento Diazepam no organismo do paciente usuário. Evidenciou-se que os recursos disponibilizados no software GeoGebra contribuem sim para a resolução de problemas que envolvem uma possibilidade de aplicação de Função Exponencial.
U.S. county level analysis to determine If social distancing slowed the spread of COVID-19
Authors: Banerjee Tannista , Nayak Arnab
Published: July 2020

Objective. To analyze the effectiveness of social distancing in the United States (U.S.).

Methods. A novel cell-phone ping data was used to quantify the measures of social distancing by all U.S. counties.

Results. Using a difference-in-difference approach results show that social distancing has been effective in slowing the spread of COVID-19.

Conclusions. As policymakers face the very difficult question of the necessity and effectiveness of social distancing across the U.S., counties where the policies have been imposed have effectively increased social distancing and have seen slowing the spread of COVID-19. These results might help policymakers to make the public understand the risks and benefits of the lockdown.
Estéticas decoloniales en la Bienal Sur 2019
Authors: Lobeto Claudio Fernando
Published: July 2020

En el presente artículo, analizaremos algunas obras presentadas en la Bienal Sur 2019 en el Centro Cultural Paco Urondo, sede de la Facultad de Filosofía y Letras de la UBA. Para esto, nos apoyamos en lo que se conoce como “estéticas decoloniales”, bien explicitado por Walter Mignolo y que centralmente supone reponer aspectos dejados de lado por la historia del arte (occidental y moderna), tales como lo sensorial, lo corporal, el ritmo, lo mítico, la espiritualidad y lo popular, en síntesis, lo perceptivo y las sensaciones por sobre la “belleza”, el talento y la genialidad individual. A partir de esto, resulta interesante en el recorrido que proponemos, observar como en las obras hay una clara intencionalidad por visibilizar la dominación colonial capitalista, para lo cual se utilizan una amplia variedad de soportes, técnicas y lenguajes.
UMA GEOGRAFIA QUE SE PRATICA NO DIA A DIA
Authors: Serpa Angelo
Published: July 2020

Neste ensaio busca-se elucidar o sentido de uma Geografia que se pratica no dia a dia, evidenciando-a a partir de qualidades irrefletidas e primeiras, uma geograficidade (DARDEL, 2011). Parte-se do pressuposto de que as práticas espaciais do cotidiano se revelam em situações específicas no tempo e no espaço, criando conjunturas e contextos que viabilizam, através do pensar em escala e de momentos de síntese perceptiva, a construção de territorialidades, assim como a regionalização de nossas ações no dia a dia. Conclui-se que a dimensão espacial das práticas e ações cotidianas – dimensão inevitavelmente imbricada com a vida e o viver – diz respeito a “recortes” que vão do próximo ao distante, do concreto ao abstrato; e que esses modos de criar e produzir espaços no dia a dia nos enredam, inexoravelmente, em tramas de relações e situações que vão permear nossos lugares, territórios, paisagens e regiões cotidianos.
PETROGRAPHIC, FLUID INCLUSION AND OXYGEN ISOTOPE CHARACTERISTICS OF RAMAND AREA, NW IRAN
Authors: Bootorabi Sima , Mehrnia Reza , Khakzad Ahmad , Nezafati Nima
Published: July 2020

Ramand mineralization area is located at a distance of about 60 km from the provincial capital of Qazvin province, Iran. The studied area is a part of the Central Iran structural zone in the southern part of Danesfahan geological map. Lithological units in Ramand area are composed of riodacite, rhyolite, tuff riodacite, crystal tuff and riodacite. The presence of clay minerals indicates argillic alteration, which is a good indicator of mineralization. This type of alteration can be detected in volcanic regions which have been severely affected by argillic alteration. Silicification is the most important evidence of precious metal potential in post magmatic environments. According to mineralogical studies, sulfide minerals in the area consist of pyrite and chalcopyrite with supergene minerals such as covellite, malachite, and Fe hydroxides. Based on phase content, the three types of inclusion in Ramand area include vapor, vapor liquid, and liquid rich inclusions. According to fluid inclusion data, the liquid vapor homogenization temperature [TH (L–V)] varied from 73 to 307 °C, and salinity ranged from 1.75 to 4.74 wt% NaCl eq. The calculated δ18O values of water in equilibrium with quartz ranged from 5.8 to 6.9 per ml. Calculated δ18O values of water in equilibrium with calcite ranged from 4.4 to 9.4 per ml. These data suggest that the ores formed most likely originated from magmatic hydrothermal sources along with some meteoric solutions during mineralization processes.
InSITE 2020 Conference Overview
Authors: (Betty) Boyd Elizabeth
Published: July 2020

This document contains the description of the InSITE conference and the schedule.

A printable copy of the full conference proceedings can be downloaded from
http://proceedings.informingscience.org/InSITE2020/InSITE_2020_Proceedings.pdf
ASSESSING ENTERPRISER PROFILES ON ENTREPRENEURIAL MANAGERIAL ACTIVITIES IN ELDORET, KENYA
Authors: Mwaniki Mary Nyiva , Maket Lydia
Published: July 2020

The purpose of this research is to analysis of enterpriser profiles on entrepreneurial managerial in Bungoma, Kenya .Efforts have been made to support entrepreneurial managerial activities training and the provision of consultative services; interestingly, the failure rate still remains high Neither research on the entrepreneur personality nor enterpriser profiles have demonstrated a decisive influence on entrepreneurial managerial activities. The study adopted a post-positivism research , with  research design of explanatory survey .The target population and sample size  were adopted from a thesis selected  from Eldoret, Towns .Data was analyzed quantitatively using techniques such as: Multivariate analysis, structural equation modeling. Finding indicates:  entrepreneurial competencies, mentoring, enterpriser profile and enterprise success dimensions were sufficiently reliable and valid to be included in the subsequent model testing. The measurement model results suggest that the model provides a reasonably good fit and thus it was suitable .The CFA results supported the measurement model.
EFFECT OF INFORMAL NETWORKS ON ENTERPRISE TRANSITION IN ELDORET, KENYA
Authors: Tallam Zakayo Kibet , Nasiuma Benard
Published: July 2020

Despite the wide application of Informal Networking, there is still limited understanding on the phenomenon in enterprise continuum. This study analysed a comparative study on Informal networks and Enterprise transition: Case of Eldoret, in Kenya. The study was informed by Reeg’s onion model, it adopted a post-positivism research. Data was adopted from a thesis, where it was collected using questionnaires. A survey research design was employed. Multiple regressions were used to measure: Effects and strength of the relationship. AMOS was used for: Modeling, Likelihood approval, Nested and Hypothesis testing. The p < = 0.05 was considered statistically significant. Findings indicate: an average of KMO = 0.80. Entrepreneurial drivers on informal networks, had a negative influence; Informal networks had a positive influence on enterprise transition; public networks on enterprise transition had a negative influence; informal networks, public networks and private networks enters the model, all the results are significant , indirect effect of  public networks and private networks was supportive.
EFFECTIVENESS OF FLIPPED CLASSROOM LEARNING IN THE ACHIEVEMENT OF COMPUTER SCIENCE AMONG HIGHER SECONDARY SCHOOL STUDENTS
Authors: Latha R. , N. Ramakrishnan
Published: July 2020

Modern Techniques are introduced in teaching and learning process frequently one such technique is Flipped Classroom learning.  Where the pupils are asked to learn the contents given to them at their home from the available sources and they review the topics in their classroom.  Since every student collect information from various sources like YouTube, Video lessons, different types of educational apps, Magazines and sources from elders etc. the collection will be excellent to review and collective ideas can help them to learn better than routine blackboard chalk and talk method by doing.  So, they learn effectively and their doubts are cleared through discussion with peers in the presence of teacher.  The teacher can conclude the teaching learning process by giving extra information left untouched by the students.  The researcher is a computer science teacher so she took a lesson from Eleventh Standard Computer Science text book of State board in the 4th Chapter of Volume - I, "Theoretical Concepts of Operating System" and she prepared a video lesson, that video lesson is utilized by the students to learn the contents allotted to them.  The Conclusion of her studying, she found that flipped classroom learning is effectively impact in the course content to the students.
ASSESSMENT OF LABORATORY COMMODITY SUPPLY CHAIN SYSTEM AT PUBLIC HEALTH FACILITIES OF JIMMA ZONE AND JIMMA TOWN ADMINISTRATION, SOUTH WEST ETHIOPIA
Authors: G/Mariam Efrem , Cheneke Waqtola , Jemal Awol , Assefa Henok
Published: July 2020

Background: Laboratory commodity management (LCM) is a formidable challenge because of various reasons. Poor LCM could produce wrong laboratory result. However, the status of laboratory commodity supply chain system in Jimma zone is not clearly known. Thus, we aimed to assess the overall supply chain system of laboratory commodity in selected public health facilities of Jimma zone, south west Ethiopia.
Methods: A facility based cross-sectional study within 3 different strata of health facilities: hospitals, A-level health centers, and B-level health centers were conducted. About 40 basic laboratory commodities as well as all pharmacy and laboratory professionals were included for the assessment. Descriptive statistics and analysis of variance with 95% confidence interval using statistical package for social sciences (SPSS) was performed.
Results: A total of 34 facilities having totally 146 professionals were included. Among these 146 professionals only 2 pharmacy professionals took LCM training. In 16(47.1%), 12(35.3%) and 1(2.9%) facilities only 1 pharmacy, 1 laboratory and 0 pharmacy professionals, respectively were available. About 40% of facilities were found to be stocked-out (SO) on the day of visit and the mean day of SO was 51 days. The mean month-of-stock (MOS) on-hand was 5.51. Health centers were more SO than hospitals. Around 31(91.2%), 30(88.2%), 29(85.3%), and 1(2.9%) facilities responded using report and requisition form, internal facility report and requisition form, bin card, and stock card, respectively, however, practically 15(44.1%) had no report on the tools. About 33(97.1%) facilities never received all ordered quantities from their main source, pharmaceuticals fund and supply agency, and 23(67.6%) received products near to their expiry date. Six (17.6%) facilities were resupplied within 2-4 weeks lead time. Sixteen (47.1%) facilities were supervised within last month, 3(8.8%) have never been supervised and in 23(67.6%) the supervision did not include laboratory commodities. About 9(26.5%) facilities were not doing demand forecast. Thirty-three (97.06%) facilities didn`t have separate budget for laboratory commodities.                                      
Conclusion: Stocks availability in Jimma zone was found very low. However, MOS on hand showed a better result, though it may not be an indication of good practice. Facilities’ storage practice was less than the minimum value.
A STUDY ON MOVIE RECOMMENDER SYSTEMS BASED ON WORDPRESS PLATFORM
Authors: Thanh Tran Thi
Published: July 2020

The rapid growth of data collection has led to a new era of information. Data is being used to create more efficient systems and this is where Recommendation Systems come into play. Recommender systems are among the most effcient tools for information filtering to improve the quality of search results and provide items that are more relevant to the search item or are realted to the search history of the user, especially from big data on Internet. Among those, movie recommendation systems are the useful tools to assist users in classifying them with similar interests. This makes them a central part of websites and e-commerce applications. This paper aims to describe the implementation of a movie recommender system built on the Wordpress platform to be able to take advantage of the plugin support system and outstanding management and statistical features. The obtained results indicate that the proposed approach may provide high performance regarding reliability, efficiency, and accuracy. Moreover, the user-friendly interface and suitable display for devices ranging from desktop to mobile devices are also the advantages.
Frequency of valproic acid induced thrombocytopenia in epileptic patients in Tertiary Care Hospital, Faisalabad.
Authors: Kanwal Anila , Hassan Sumaira , Anjum Zahid Mahmood , Siddique Mehboob Alam , Idrees Faiza , Ayesha Hina
Published: July 2020

Epilepsy may be defined as recurrent abnormal neuronal discharge leading to seizures or periods of unusual behavior, sensations and sometimes loss of awareness. Valproic acid is a widely-used first-generation antiepileptic drug. It has good efficacy and pharmacoeconomic profiles. But adverse drug reactions are also reported. Thrombocytopenia is one of the adverse effects of valproic acid treatment. But local evidence was lacking. So we conducted this study to get local evidence. Objectives: To see the frequency of thrombocytopenia in epileptic patients taking valproic acid. Study Design: Descriptive cross sectional. Setting: Pediatric Department of DHQ Hospital Faisalabad. Period: 19-06-2017 to 19-12-2017. Material & Methods: 75 children were included. Then after taking informed consent patient’s blood sample was taken for complete blood count in standard vials and was sent to DHQ hospital pathology laboratory to diagnose thrombocytopenia as a count less than 150000cmm, where reports were verified by pathologist. All the data was analyzed by using SPSS version 20. Results: In this study, the mean age of patients was 6.59±3.15 years. There were 43 (57.3%) males and 32 (42.7%) females. In this study, 34 (45.3%) children had generalized type of epilepsy while 41 (54.7%) had focal type of epilepsy. The mean duration of valproic acid treatment was 3.15±2.82 years. The mean dose of valproic acid treatment was 38.40±6.07mg/kg. The mean platelet count 199602.87±58058.85mg/dl and 18 (24%) had thrombocytopenia while 57 (76%) did not develop thrombocytopenia. Conclusion: Thus the frequency of thrombocytopenia is low but still we will advise the patients to screen out themselves for bleeding or bruising.
Clinical and biochemical profile of obese and overweight children at a Tertiary Care Hospital.
Authors: Khuhro Asif Ali , Rehman Fazal Ur , Ali Waqas , Usman Najmi , Rajper Sanam Bano
Published: July 2020

Objectives: Childhood and adolescent obesity is increasing especially in developing countries like Pakistan. It seem to affect most socio-economic classes as well as all ethnicities and geographies. We planned this study to analyze the clinical and biochemical profile of obese as well as overweight children at a tertiary care hospital for the existence of metabolic syndrome. Study Design: Cross sectional study. Setting: Department of Pediatrics Medicine, Children Hospital Chandka Medical College / Shaheed Mohtarma Benazir Bhutto Medical University, Larkana. Period: 1st July 2018 to 31st December 2018. Material & Methods: Children, aged 5 to 16 years, both gender, having BMI > 85th percentile regarding age and gender were enrolled. Demographic characteristics along with history, lifestyle parameters and physical examination were noted for all the study participants. Metabolic syndrome (Met S) was evaluated while overall results were presented in terms of proportions, mean and standard deviations. Results: A total of 78 cases were enrolled during the study period. There were 46 (58.9%) male and 32 (41.1%) female, with a male to female ratio of 1.4:1. Mean age amongst study participants was 10.8 years. We had 56 (71.8%) children as overweight whereas 22 (28.2%) obese. Acanthosis nigricans was the most common entity seen in 55 (70.1%) children during clinical examination. Metabolic syndrome was found to be present in 31 (39.7%) participants. Conclusion: Met S is not only limited to obese children as it can also affect children who are overweight.
Correlation of Leptin level with obesity.
Authors: Andleeb Jazib , Javaid Sana , Karim Rukhsana Abdul
Published: July 2020

Objectives: To document the leptin level and its effect on obese and non-obese. Study Design: Observational comparative study. Setting: CMH Institute of Medical Sciences Bahawalpur, Sharif Medical and Dental College and Sharif College of Nursing Lahore. Period: From 1st January 2018 to 1st January 2019. Material & Methods: Ninety healthy obese and non-obese subjects who were selected by non-probability consecutive sampling technique included in study. Ethical approval was obtained before start of study. SPSS version 23 was used for data analysis; main variables of study were age, BMI and leptin resistance. P value ≤0.05 was considered as significant. Results: The mean leptin level in obese and non-obese was 53.75±7.54 and 50.62±7.18, respectively. There difference was statistically significant among the groups, (p=0.000). Conclusion: Results of our study reveal that leptin level is a related factor in the pathogenesis of obesity.
Correlation of vitamin D3 and serum calcium level with left ventricular hypertrophy patients.
Authors: Noor Masood Nabi , Jamali Anawar Ali , Rahu Hajra Naila , Jamali Ghulam Mustafa , Memon Altaf Hussain , Phull Ghulam Muhammad
Published: July 2020

Extra cellular fluid (ECF) Ca++ performs vital functions such as blood clotting, cardiac muscle contraction, second messenger for hormone and neurotransmitter release. Total Ionized serum Ca++ is 4.65 to 5.25 mg/dl Ionized Ca++ performs vital physiological functions such as maintenance of plasma membrane integrity. Objectives: The present study is the first research being reporting on the association of LVH (left ventricular hypertrophy) due to essential hypertension with serum vitamin D3 and serum calcium levels. Study Design: Cross Sectional Research. Setting: Medicine/Cardiology department, Peoples Medical University Hospital, Nawabshah. Period: 1st January 2017 to 30th June 2017. Material & Methods: To assess the correlation of 25-hydroxycholecalciferol and serum calcium with left ventricular hypertrophy in essential hypertension. The thickness of inter ventricular septum (IVS) and posterior wall (PWT) on echocardiography were used to categorize LVH into mild, moderate and severe. Results: Male predominated in the present study. Male to female ratio was 1.65:1. Male and female comprised 62.33% and 37.67% respectively. Chi square value (X2-value) was 14.7 with significant p-value. Mean +SD of 25-hydroxycholecalciferol in mild moderate and severe LVH were noted as 30+7.8, 24.7+7.7 and 14.9+6.1 ng/dl respectively. Mean +SD of serum calcium in mild moderate and severe LVH were noted as 9.20+0.51, 8.93+0.72 and 8.678+0.44 mg/dl respectively. Conclusion: In subjects with left ventricular hypertrophy in essential hypertension the serum levels of vitamin D and calcium were low. There was a negative correlation with left ventricular hypertrophy and serum vitamin D and serum calcium. Thus it could be concluded that in subjects with left ventricular hypertrophy the low levels of serum vitamin D could be an independent modifiable risk factor.
Prevalence of BRCA1/BRCA2 frequent mutations in the Pakistani breast cancer patients.
Authors: - Shabana , Liaqat Zainab , Maqsood Faiqa , Akhtar Tehmeena , Nasir Muhammad Farhan , Sarwar Sumbal , Fatima Warda
Published: July 2020

Objectives: Breast cancer is the most common cause of death in women. 20% of breast cancer cases are due to the variations in the BRCA1/BRCA2 genes. Various variants of BRCA1/2 genes have been reported worldwide, which cause breast cancer by forming truncated proteins. In the current study, we aimed to find out the prevalence of mutations 1294DEL40, E1250X and 5382insC (BRCA1) and 2157DELG (BRCA2) in a case control cohort of Pakistani origin. Study Design: Case Control Study. Setting: Microbiology and Molecular Genetics University of Punjab, Lahore.  Period: December 2017 to June 2018. Material & Methods: Blood samples from 80 female breast cancer patients and 80 healthy females were taken. DNA was isolated from blood by manual method and genotyping was done by PCR-RFLP. Results: We found that for the 2157DELG mutation of the BRCA2 gene, homozygous mutant phenotype is present only in the cases at a frequency of 25% while the BRCA1 gene mutations were less common i.e., the E1250X mutation showed 6.6% prevalence in patients, and the 1294del40 and 5382insC mutations were absent in the current cohort. Conclusion: Despite of sample size limitation, this study provides information about the prevalence of some common mutations. In addition, clinical risk factors were also noted which are essential in risk assessment. We foresee that targeting of specific genetic variants restricted to a particular ethnic group would be more effective in the future therapeutic approaches for the prevention and cure of breast cancer.
Prevalence of depression among patients with primary headache and secondary headache.
Authors: Ali Gohar , Ali Asghar , Gul Ejaz , M. Muneeb Pirzada , - Sumaira
Published: July 2020

Headache is a very common condition worldwide and may have serious consequences on effective functioning of an individual. It may also lead to emotional consequences or may be a result of emotional burden. Psychiatric comorbidity is also very common among patients with headache. Objectives: The main aim of the study was to assess depression among patients presenting to neurosurgery OPD with chief complaints of headache. Study Design: Cross Sectional Study. Setting: Neurosurgery OPD of a Tertiary Care Government Hospital Mardan Medical Complex located in Mardan, Khyber Pakhtunkhwa. Period: September 2018-February 2019. Material & Methods: Patients presenting to neurosurgery OPD of Mardan medical complex, Mardan with chief complaints of headache were included in the study. Demographic information sheet was used to obtain important demographic information. Informed consent form was filled and signed from each participant. Hamilton Depression rating scale was used to assess symptoms of depression among the participants. Results: Most of the study patients 93 (74.4%) had primary headache, while 32 (25.6%) had secondary headache. The results of the study found that highest prevalence of depression was present among patients with tension type headache (88 %) as compared to migraine (78 %) and secondary headache (84 %).  Moderate depression was present among 32 % of the study population, while 28 % had severe depression. Conclusion: These findings suggest that depression is very common among patients with headache. Primary health care practitioners should assess for symptoms of depression for better management of the course and prognosis of the patients presenting with complaints of headache.
Necessity of routine histopathological examination of gall bladder specimens after elective cholecystectomy: An experience at Tertiary Care Hospital of Southern Punjab Pakistan
Authors: Shafique Sadaf , Khan Raheel , Abbas Raees , Mehmood Bakhtawer
Published: July 2020

Objectives: Few centers adopt a selective approach in sending these specimens to pathology department for histopathology whereas it is a routine procedure in our setup. In our study, few unexpected cases of adenocarcinoma of gall bladder were seen during investigation of results of pathological examination of gall bladder specimens. Study Design: A retrospective histopathological analysis of gall bladder specimens removed during elective cholecystectomy for benign diseases was done. Setting: Department of Pathology, Quaid-e-Azam Medical College/Bahawal Victoria Hospital Bahawalpur. Period: 1st January 2018 to 31st December 2018. Material & Methods: The demographic properties of the patients were evaluated from the past records and their association was seen with the histopathological diagnosis and frequency of unexpected cases of gall bladder carcinoma. Results: Total of 840 cases were reviewed with mean age of the patient 42.48±14.8 years. The most frequent diagnosis was chronic cholecystitis with cholelithiasis (n=806) which was associated with upper abdominal pain (p<0.01). It was more prevalent among females sex (n=742). Six patients (0.7%) showed evidence of adenocarcinoma of gall bladder which had no gross abnormality on macroscopic examination. Conclusion: It is very significant to do routine histopathological examination of all the gall bladder specimens removed for benign diseases during elective cholecytectomies which incidentally may also be associated with carcinoma gall bladder and may require further surgical intervention.
Comparison of dexamethasone and midazolam in improving the efficacy of 0.5% bupivacaine in ultrasound guided supraclavicular brachial plexus block.
Authors: Iqbal Umar , Akram Muhammad , Khan Ahsan , Qureshi Amna , Sheikh Fareeha
Published: July 2020

Objectives: The objective of this study was to compare the additive effect of dexamethasone versus midazolam as an adjuvant to bupivacaine for the mean duration of onset of sensory block and duration of analgesia with ultrasound guided supraclavicular block. Study Design: Randomized control trail. Setting: Research was jointly conducted at Arif Memorial Hospital affiliated with Rashid Latif Medical College and KEMU/Mayo Hospital Lahore under the auspices of Department of Anesthesiology. Period: 01/02/2017 to 30/06/2017. Material & Methods: Involved 264 patients of either sex, aged between 20-60 years undergoing upper limb surgery under ultrasound guided supraclavicular brachial plexus block. After obtaining informed consent, patients were randomly allocated into two treatment groups. Along with 0.5% bupivacaine, patients in Group-I received dexamethasone while those in Group-II received midazolam. Outcome variables were mean time to onset of sensory block and mean duration of analgesia which were noted and compared among the groups. Results: The mean age of the patients was 38.90±11.92 years. There were 201 (76.1%) male and 63 (23.9%) female patients in the study group. Majority (79.2%) of the patients belonged to ASA Class-I followed by ASA Class-II (20.8%). Mean time to onset of sensory block was significantly shorter with dexamethasone (10.02±1.26 vs. 11.07±1.38 minutes; p<0.001) as compared to midazolam and this difference was significant across all age, gender and ASA groups. Mean duration of analgesia was also significantly longer with dexamethasone (19.11±1.32 vs. 13.07±1.43 hours; p<0.001) as compared to midazolam and this difference was also significant across all age, gender and ASA groups. Conclusion: Addition of dexamethasone to bupivacaine in ultrasound guided supraclavicular brachial plexus block resulted in early onset of sensory block (10.02±1.26 vs. 11.07±1.38 minutes; p<0.001) and longer duration of analgesia (19.11±1.32 vs. 13.07±1.43 hours; p<0.001) as compared to midazolam in patients undergoing upper limb surgery irrespective of patient’s age, gender and ASA status.
Frequency of common complications among patients presenting with septic induced abortion.
Authors: Ikram Kiran , Israr Surraya , Khan Ubaid Ullah , Farooq Umer , Begum Iqbal
Published: July 2020

Objectives: To find frequency of common complications among patients presenting with induced septic abortion attending OPD of Hayatabad Medical Complex Peshawar. Study Design: Descriptive cross-sectional study. Setting: Department of Obstetrics & Gynecology Hayatabad Medical complex Peshawar. Period: 6 October, 2016 to 6 April, 2017. Material & Methods: Through a cross sectional validation study design, 123 pregnant female patients with induced septic abortion having a gestation period of 20 to 22 weeks were included in the research study. After their consent, detailed clinical examination and history of patients were taken. SPSS version 10.0 was used for analysis of the collected data. Descriptive statistical data like mean + Standard deviation was measured for age, gravidity & parity. Likewise, frequency & percentage was calculated for hemorrhage, diffuse peritonitis and severe anemia. Results: As per Common Complications, frequencies and percentages for hemorrhage was recorded in 31 (25.20%) patients, diffuse peritonitis was recorded in 49 (39.83%) patients while severe anemia was recorded in 26 (21.13%) patients. However, 17 patients (13.82%) had no complications other than septic abortion. Conclusion: Our study concluded that the mishap of septic-induced abortion is totally preventable. The definitive commitment to women’s health can be achieved through effective contraception and by strengthening the family welfare services. Positive results can be achieved by discouraging repeated terminations of pregnancy.
Comparison of dexmeditomidine and propofol for hemodynamic and recovery characteristics in dilatation and curettage.
Authors: Farrukh Raza , Awan Waseem Sadiq , Khan Ahmed Hassan , Rana Asaad Rizwan , Jilani Ahmed Aziz , Mahmood Khalid
Published: July 2020

Objectives: To evaluate the hemodynamic and recovery characteristics of dexmeditomidine and propofol in dilatation and curettage. Study Design: Randomized control trial. Setting: Department of Anaesthesia, DHQ Teaching Hospital Sargodha. Period: March 2016 to December 2017. Material & Methods: Patients undergoing dilatation & curettage were randomly divided into two groups, group P received IV propofol 1.5mg/kg slowly over 5 min and group D received dexmeditomidine at a loading dose of 1µg/kg followed by 0.5 µg/kg/h. During the procedure blood pressure and heart rate were compared in both groups. In the recovery room, recovery time was compared in both groups by using modified aldrete score. Results: In Group D, the decrease in heart rate was statistically significant when compared with group P. Both groups showed a decrease in MAP but results were not statistically significant when compared in both groups. Patients in group D were discharged earlier from recovery room than group P and results were statistically significant. Conclusion: Dexmeditomodine provides better recovery than propofol so it is a suitable drug for day care minor surgical procedures. Similarly dexmeditomidine is superior to propofol by providing less respiratory depression intraopertaively.