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Intersheet Distance Modeling and Thermal Characterization of New Micro/Nano-Composites Composed by Clay Matrix and PEG 6000 Addition

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Open Journal of Civil Engineering 2016年第4期6卷 577-594页

作者： Iatimad Akhrif Mostapha El Jai laila Mesrar Raouf Jabrane Geosciences and Environment Laboratory Faculty of Sciences and Techniques Sidi Mohammed Ben Abdellah University Fez Morocco Advenced Materials & Applications Research Team Ecole Nationale Supérieure d’ Arts & Métiers de Meknès Moulay Ismail University Meknes Morocco

Nowadays, the energetic efficiency becomes one of the major interests of the global society. Thus, the energetic challenges of the new century enforce the scientific and industrial environment to the development of new efficient materials, which present more than the classical thermal properties, according to the energy storage, energy consumption and other specific needs. In this context, the present work constitutes the third step of the development of a new kind of composite materials (micro-composites and nano-composites), using natural marl (clay) clay and biodegradable polymer, which is the PolyEthylene Glycol 6000 (PEG 6000). This step corresponds to characterization of the variation of the specific heat (denoted Cp) of the materials elaborated. So, in order to estimate the capacity of thermal energy adsorption, we utilized a SHIMATZU-DSC 60 Differential Scanning Calorimeter. The main results present the evolution of the Cp according to the PEG 6000 doping and also the specific melting enthalpy of the polymer within the natural clay matrix;by the way this enthalpy constitutes the specific heat stocked in the materials.

关键词： Kaolinite/Illite Micro and Nanocomposite/Clay Matrix Phase Chage Materials PolyEthylene Glycol 6000 Thermal Analysis DRX Characterization Differential Scanning Calorimetery Transformation Enthalpy Latent Heat

Vault Hematoma after Vaginal Hysterectomy: An Invariable Complication

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Open Journal of Obstetrics and Gynecology 2019年第5期9卷 578-581页

作者： laila Yahya A. Alhubaishi Atif Bashir Fazari Department of Obstetrics & Gynecology Latifa Hospital DHA Dubai UAE Faculty of Medicine University of Medical Sciences & Technology Khartoum Sudan

Hysterectomy is common major operation performed in gynecological field practice after Caesarean section. Vaginal hysterectomy is preferred surgery for uterovaginal prolapsed. Vaginal hysterectomy has advantages over abdominal hysterectomy. Post hysterectomy hematomas are responsible for serious morbidity. Ultrasound is an accurate diagnostic tool and so Computed tomography. Conservative management, analgesia and antibiotics will work in small hematoma, but the significant sized hematoma needs surgical drainage and the infected hematoma. Refinement in surgical techniques is recommended to minimize the formation vaginal vault hematomas after vaginal hysterectomy.

关键词： Vault Hematoma Vaginal Hysterectomy Surgical Anatomy

Retrospective review of total neoadjuvant therapy

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World Journal of Gastrointestinal Oncology 2019年第10期11卷 857-865页

作者： laila Babar Veli Bakalov Stephen Abel Obaid Ashraf Gene Grant Finley Moses S Raj Kristina Lundeen Dulabh K Monga Alexander V Kirichenko Rodney E Wegner Department of Internal Medicine Allegheny General HospitalPittsburghPA 15212United States Department of Radiation Oncology Allegheny General HospitalPittsburghPA 15212United States Department of Medical Oncology Allegheny General HospitalPittsburghPA 15212United States

BACKGROUND Neoadjuvant chemoradiotherapy(nCRT)followed by resection and postoperative multi-agent chemotherapy(maChT)is the standard of care for locally advanced rectal *** this approach,maChT administration can be delayed for several months,leading to concern for distant *** counteract this,a novel treatment approach known as total neoadjuvant therapy(TNT)has gained popularity,in which patients receive both maChT and nCRT prior to *** utilized the National Cancer Database to examine temporal trends in TNT usage,and any potential effect on *** To study the temporal trends in the usage of TNT and evaluate its efficacy compared to neoadjuvant *** We queried the National Cancer Database for patients with locally advanced rectal cancer,Stage II-III,from 2004-2015 treated with nCRT or *** was defined as maChT initiated≥90 d prior to nCRT *** survival was calculated from the date of diagnosis to the date of last contact or death using Kaplan-Meier curves to present the cumulative probability of survival,with logrank statistics to assess *** cox regression was used to identify predictors of survival and propensity score analysis accounted for *** We identified 9066 eligible patients,with 8812 and 254 patients receiving neoadjuvant chemoradiation followed by maChT and TNT,*** involvement,stage III disease,and treatment in recent years were predictive of TNT *** was greater use of TNT with more advanced stage,specifically>1 node involved(odds ratio[OR]=2.88,95%confidence interval[CI]:2.11-3.93,P<0.01)and stage III disease(OR=2.88,95%CI:2.11-3.93,P<0.01).From 2010 to 2012 the use of TNT increased(OR=2.41,95%CI:1.27-4.56,P<0.01)with a greater increase from 2013 to 2015(OR=6.62,95%CI:3.57-12.25,P<0.01).Both the TNT and neoadjuvant chemoradiation arms had a similar 5-year survival at 76%and 78%*** analysis with propensity score de

关键词： Total neoadjuvant therapy Neoadjuvant chemoradiation Multi-agent chemotherapy Locally advanced rectal cancer National cancer database Colorectal cancer Retrospective review Gastrointestinal oncology Temporal trends Surgical excision

The Importance of Bringing the Family Together. Exploring the Experience and Meaning of Family Health Conversations in Dementia Care

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Open Journal of Nursing 2019年第11期9卷 1153-1172页

作者： laila Mohrsen Busted Dorthe S. Nielsen Regner Birkelund The Department of Regional Health Research Faculty of Health Sciences University of Southern Denmark Odense Denmark The Health Sciences Research Center UCL University College Odense Denmark Migrant Health Clinic Odense University Hospital Center for Global Health University of Southern Denmark Odense Denmark

Aim: The aim of this study was to investigate family members’ experience of engaging in the “Family Health Conversations” intervention. Methods: A qualitative study was conducted with 15 family members who engaged in the intervention. The study used semi-structured interviews and data were analysed using reflexive thematic analysis. Findings: Through analysis and interpretation of the data, three themes were identified: 1) Support for navigating in unknown waters;2) Bringing peace and relief to the family;3) Involving the relative with dementia in Family Health Conversations. Family Health Conversations showed were beneficial to the families of persons with dementia and of great importance to both individual family members and the family. Involving the person with dementia in the Family Health Conversations was not always beneficial for the family. Conclusion: Deciding when to involve the person with dementia in Family Health Conversations requires thorough knowledge of the family as well as the person with dementia, to avoid excluding them. The intervention supports retaining selfhood and autonomy for the person with dementia, even when the individual did not participate in the conversation.

关键词： Family Health Conversations Dementia Care Family Members

阿联酋对也门外交政策变化的分析（2011-2020）

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阿联酋对也门外交政策变化的分析（2011-2020）

作者： laila Ahmed Al-galal 吉林大学

学位级别：硕士

通过外交政策的制定,国家的决策者建立或中止与他国的外交关系。在持续不断的也门战争中,有许多国家和势力参与其中,阿拉伯联合酋长国是其中重要的参与者。一些学者采用不同的国际关系理论分析了阿联酋在也门战争中的作用,但是尚未有人... 详细信息

通过外交政策的制定,国家的决策者建立或中止与他国的外交关系。在持续不断的也门战争中,有许多国家和势力参与其中,阿拉伯联合酋长国是其中重要的参与者。一些学者采用不同的国际关系理论分析了阿联酋在也门战争中的作用,但是尚未有人从“理性选择理论在决策进程的作用”这一结合外交政策分析(FPA)的新鲜角度来剖析该国的外交政策。其中,这展现了决策者如何使用灵活的方案“(为他们)理性”的在外交政策的制定中做出合适的决定。最重要的是,没有人将2011年到2021年期间的地缘政治因素和阿联酋对也门的外交政策联系起来进行分析。为了填补这个空白,本文通过分析和跟踪阿联酋从2011-2021年之间的外交政策,来研究阿联酋在也门的目标变化。本文评估了阿联酋的显性动机和隐性动机,并使用案例分析法和过程追踪法,分析阿联酋作为海湾合作委员会(海合会)和联合国的成员,在战前就也门危机作出决策的过程。讨论基于的分析路径是评估阿联酋在也门南部组建武装团体的影响以及这种组织形成背后的原因。此外,本文也将阿联酋对一些在红海地区拥有战略港口的非洲国家的外交政策纳入比较研究的视野。阿联酋的外交政策通常被指责是十分复杂的。通过利用军事能力实现经济收益,同时削弱也门政府的权力,这两个因素都表明阿联酋已经改变了在也门打击胡塞叛乱分子的目标。因此,阿联酋对也门的外交政策的目的不再是战前所决定的恢复也门统治者的权力,而是实现其地缘政治利益。本文共五章。第一章介绍了理解这一课题的基本要素:通过背景介绍,了解阿联酋和也门在2011年之前存在怎样的关系。也提到了进行这项研究的意义。本文采用收集数据的方法包括分析、电话采访、比较研究、案头分析、实地考察也门各地、观察以及官方文件搜索;关于文献综述,本章从不同角度展示了一些作者对阿联酋参与也门战争的看法。第二章讨论了在第一阶段(2011-2015年)阿联酋对也门的外交政策。该章解释了在2011年也门革命期间,前总统阿里·萨利赫辞职的事件是如何升级的,以及权力如何倾向于暂时移交给他的副手的问题。分析显示了阿联酋在支持2011年权力过渡期时在海湾国家中的作用,此外,也阐明了在也门前总统萨利赫的帮助下,胡塞如何控制也门各省并与他们结盟。文章分析表明,阿联酋作为海湾合作委员会和联合国的成员,批准了许多关于胡塞和萨利赫的决议,以防止事态恶化。由于阿联酋是海湾合作委员会(海合会)和联合国的成员,这是阿联酋稳定参与也门战争的原因,它并未表现出任何基于国家利益的原因。在本章的结尾,格雷厄姆·艾利森的外交政策理论“理性选择理论”被应用于阿联酋2015年至2021年对也门的外交政策中。第三章分析了第二阶段(2015-2021)阿联酋对也门的外交政策。本章主要分析阿联酋在也门战争前和战争期间外交政策的变化,并介绍了阿联酋的行动及其对也门的影响,包括不允许也门总统哈迪的飞机降落在也门;占领也门的港口和岛屿——亚丁港、摩卡港、穆卡拉港、纳什通港、盖纳港等;岛屿包括普里姆岛和索科特拉群岛群岛。每个案例都进行单独的解释。这些研究表明阿联酋在多大程度上限制了也门的贸易。在本章的结尾,格雷厄姆·艾莉森的外交政策理论“理性选择理论”被应用于阿联酋在2015年至2021年对也门的外交政策中。第四章对本文的主题进行综合分析,同时发现阿联酋占领也门领土和限制也门港口的外交政策对也门带来了十分严重的后果。本文通过分析阿联酋对也门在战前和战争期间两个阶段的外交政策(2011-2021年)来论证阿联酋参与也门战争是出于地缘政治动机这一观点。本章阐明了阿联酋在2011年之前限制也门港口的政策与2015年以来战争期间的政策的相似性。阿联酋已经采取限制该地区港口发展的政策,非常明显的体现在其与非洲国家的关系上。这也从侧面证明阿联酋试图控制该地区(也门)港口,例如贾巴尔阿里港、齐亚德港和哈利法港。第五章是前几章所讨论的内容的总结,并根据本文分析研究的结果提出个人观点。此外,还对结束也门战争的解决方法进行探讨,同时也分析了也门人为加强控制和保护该地区国际贸易崩溃的能力和加强与其他国家的贸易关系应采取的行动。

关键词：阿联酋也门政府沙特领导的联盟外交政策港口

Preparation, Characterization and in Vitro Evaluation of the Antitumor Activity of the Biologically Synthesized Silver Nanoparticles

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Advances in Nanoparticles 2016年第2期5卷 149-166页

作者： Omama E. Elshawy Eman A. Helmy laila A. Rashed Health Radiation Research Department National Centre for Radiation Research and Technology (NCRRT) Atomic Energy Authority (AEA) Cairo Egypt Regional Centre of Mycology and Biotechnology (RCMB) Al-Azhar University Cairo Egypt Medical Biochemistry Department Faculty of Medicine Cairo University Cairo Egypt

This study was concentrated on the biosynthesis of silver nanoparticles from Penicillium aurantiogresium (IMI 89372) with a focus on its cytotoxicity in MCF-7 and MCT cancer cell lines as well as Vero (normal) cell line that was assessed by crystal violet assay after treatment with various concentrations (0.44 – 145 μg/ml) for 24 h. The cell morphology was examined by inverted light microscopy. Further, the radiosensitizing effect of silver nanoparticles (AgNPs) on MCF-7 was also demonstrated by assessing cell morphology, cell proliferation of MTT assay, LDH activity and induction of apoptosis through checking of some apoptotic genes that altered during carcinogenesis, including caspase-3, Bax and Bcl-2. Caspase-3 activity was also estimated. Synthesis of AgNPs was determined by UV-Visible spectrum and it was further characterized by TEM, FT-IR and X-Ray analysis (EDX, XRD). The biosynthesized AgNPs were spherical and of 12.7 nm in size as recorded by direct electron microscopy visualization. The biosynthesized AgNPs showed variation in cytotoxicity against MCF-7, MCT and Vero cell lines in a concentration dependant response with a varied degree of alteration in cell morphology. The result showed that AgNPs were highly toxic towards MCF-7 with IC50 value of 10.5 μg/ml. Treatment of MCF-7 (10.5 μg/ml) prior to irradiation improved the effect of irradiation dose (6 Gy) via increasing alteration of cell morphology, inhibition of cell proliferation, activation of the lactate dehydrogenase (LDH) and caspase-3 leading to induction of apoptosis which was further confirmed through increasing nuclear DNA damage and up regulation of caspase 3 and Bax genes and downrgulation of Bcl-2 genes. In conclusion, the present findings clearly indicated that AgNPs showed dose dependant cytotoxicity and verified that AgNPs acted as a potent radiosensitizer and could enhance gamma irradiation induced killing of MCF-7 breast cancer cells.

关键词： Penicillium aurantiogriseum Silver Nanoparticles in Vitro Cytotoxicity Radio-Sensitivity

Assessment of Usual Fruit, Vegetable and Vitamin C Intakes in a Sample of Egyptian Children: Pilot Study

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Food and Nutrition Sciences 2015年第10期6卷 923-934页

作者： laila Hussein Nehad Hassan Mahmoud Mohamad Sahar Abdel Aziz Department of Nutrition National Research Center Giza Egypt

The objective was to create an Egyptian database on the contributors of fruit and vegetables in the diets of preschool children and to estimate the usual daily intakes of fruits, vegetables and vitamin C. A total of 59 healthy boys and girls aged 2.5 - 6 years attending day care centers in urban Giza governorate completed the study by interviewing their mothers on 6x non-consecutive days using the 24 h dietary recall. Participants were classified according to age, gender and socioeconomic class. Prevalence of daily consumptions of fruits and vegetables amounted to 22% and 54%, respectively of the total children. The daily intakes of fruits and vegetables averaged 117.5 and 56.4 g, respectively. The consumption of different types of fruits and vegetables was unevenly distributed by different personal and social variables. Estimated daily vitamin C supply from the diet was 38 mg per child, which satisfied the respective recommended nutrient intake (RNI) of 30 mg for the first six years of life. However, the diet of 15% of the children covered less than 75% of RNI. Top fruits contributing to vitamin C were oranges, guava, watermelon, pears and grapes. Extra foods such as chipsy was consumed by 81% of the children, contributed 18% to daily vitamin C supply and also 58.6 mg sodium. A multilevel intervention strategy is warranted for promoting daily fruit and vegetable intake and healthy eating in early childhood.

关键词： Children Aged 2.5 - 6 Years Fruit & Vegetable Intakes Vitamin C Intake Health Problems & Vit C Deficiency

COVID-19 in Children: Experience from a Tertiary Care Hospital in Bangladesh

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Open Journal of Pediatrics 2022年第5期12卷 749-766页

作者： Kamrul laila Mujammel Haque Sutopa Halder Supti Shahana Akhter Rahman Department of Pediatrics Bangabandhu Sheikh Mujib Medical University Dhaka Bangladesh

Background: Children are generally at low risk of infection and data on COVID-19 in children are scarce. This study was undertaken to document data from a tertiary care hospital in Bangladesh on the incidence, presentation and immediate outcome of COVID-19 in children. Methodology: It was a cross-sectional study conducted in the fever clinic and the department of Pediatrics, Bangabandhu Sheikh Mujib Medical University (BSMMU) over a period of one year from July 2020 to June 2021. All the RT–PCR positive pediatric cases (1 month to 18 years) were enrolled. Data were collected by a structured, predesigned and pre-tested questionnaire. Data were analyzed using Microsoft Excel spreadsheet software 2010. Frequency, percentage and chi-square tests were done for statistical analysis. Result: Among 8203 suspected pediatric COVID-19 cases, 850 (10.36%) was RT PCR positive. The highest number of RT-PCR positive COVID-19 cases was found in April 2021. More than 63% of cases were in the age group of 10 to 18 years. Male: female ratio was 0.97:1. Fever was the most common (75.9%) presenting feature followed by breathing difficulty and chest pain in 9.6% and 7% of patients respectively. Mild infection group was predominant (56.7%). Among the symptomatic cases, 16.7% were hospitalized. Oxygen inhalation and bronchodilators were needed in 75% of hospitalized patients. All the severe and critical cases were managed in the inpatient department and in pediatric PICU when indicated. Most of the patients (99.4%) improved with or without any complication. Four critically ill patients (0.75%) developed multi-organ dysfunction and expired in PICU. Conclusion: The majority of COVID-19 cases belonged to the older age group. More than 75% cases were symptomatic. History of contact was present in 78% cases. More than 99% children recovered with or without sequelae and 0.8% children with pre-existing co-morbidities expired.

关键词： COVID-19 Infection Severity Age Group Co-Morbid Conditions

Nutritional Epidemiological Study to Estimate Usual Intake and to Define Optimum Nutrient Profiling Choice in the Diet of Egyptian Youths

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Food and Nutrition Sciences 2015年第15期6卷 1422-1436页

作者： Moushira Zaki laila Hussein Mostafa Gouda Rania Bassuoni Ahmed Hassanein Department of Biological Anthropology National Research Centre Giza Egypt Department of Human Nutrition National Research Centre Giza Egypt Department Information and Systems National Research Centre Giza Egypt

Objectives: To define optimum food and nutrient profiling in gender-specific and age group-specific variant regression models. Setting: 481 subjects of both sexes (18.4 years old) from Giza urban were set. Design: Dietary assessment used the 24-h dietary recall data to calculate the estimated energy and (24) nutrients eaten by each individual. Four indices—food variety diversity score, healthy eating index (HEI), mean probability of nutrients adequacy (MPA) and nutrient rich food (NRF9.3) index score were used for assessing the profiling of the diet. Results: A total of 163 individual food items were consumed by the participants within the 24-h dietary recall with an average daily intake of (6.6) different food varieties. Grains were the top contributors of energy and 10 macro and micro nutrients followed by the meat group. Based on the MPA data, the mean acceptable intake (AI) of dietary calcium (32.9%) and vitamin C (30%) were limiting in the diet. The diet profiling consumed by the teenagers aged 14.8 years was inferior compared to that consumed by subjects aging 23.9 years. Linear regression analyses were conducted between the 4 indices as the dependent variable and all possible combinations of 16 nutrients of interest as independent variables. NRF9.3 was the optimum nutrient index and correlated negatively with markers of abdominal obesity. Conclusion: Implementation of nutrition intervention program was directed to youths to include age appropriate good healthy foods to decrease the risk of nutrient deficiencies.

关键词： Egyptian Youths Healthy Eating Index Mean Probability Nutrient Adequacy Nutrient Rich Food Index Anthropometric Measures of Health Risk Correlations