bluuebunny/crossref_metadata_2025 huggingface dataset:
The impact of humidity on building materials in heritage residential buildings-Sulaimani city as a case study
Authors: Salih Chro , Seed Bahar
Published: April 2019

Building materials are important factors that have given heritage buildings special feature and distinct it from other modern buildings. These materials are usually taken from the sources that were available in that region, such as wood, clay, plaster, stone ... etc., as they have been affected by various factors such as humidity. Humidity is one of the basic components of a natural environment that affects buildings in general and the residential buildings in particular. Humidity causes rot, melting, collapse, corrosion and bending in building materials, and this can be seen in selected models in the heritage areas of Sulaimani city. The research assumes that humidity affects building materials in varying degrees. Then through graphic analysing and also analysing the table of indicators, the hypothesis of the research has been tested and the main conclusions have been discussed.
The Effect of the Abuses of Sidewalks on Walkability in the Residential Areas of Sulaimaniyah City
Authors: Younis Mayada , Ali Amjad , Towfeeq Hawar
Published: April 2019

The sidewalk has a great importance as a key component and main complement to roads and streets in the cities generally and residential areas and neighborhoods in particular. These sidewalks constitute the main walking environment in the residential neighborhoods and the link between houses and residential buildings on one hand, and the streets and corridors of vehicles' movements on the other hand. In order to improve the walking environment in the residential areas, the specifications and the designs of these sidewalks should meet various requirements for the pedestrians, including the sense of safety, comfort and ease of movement. Many of residential areas in Iraqi cities suffer from weak sidewalks design, which has led to deterioration of the ability of walking on .This research attempts specifically to study the condition of sidewalks in some of the residential areas in the city of Sulaimani; focuses on the problem of poor sidewalks' conditions in the residential areas in general and the inability to use for safely walking in particular. Assuming that the non-compliance with the municipal regulations and abusing them by the users are the main reasons for the deterioration of sidewalks' conditions and inadequacy for walking. The research aims to find out the extent of the impact of these violations in disrupting the ability to walk in those pathways. The study methodology is a field surveying for the current state of sidewalks in these residential areas and comparing them with the available international standards and municipal regulations.
ENZYMATIC ACTIVITY THE SERIES OF OXIDOREDUCTASES AS INDICATOR OF PROTEINS NATIVE STATE PRESERVATION INTO HYDROTROPE-INDUCED PHASE OF SODIUM DODECYL SULPHATE
Authors: Zimoglyad A. , Starova V. , Kulichenko S. S.
Published: April 2019

Preserving the proteins native nature after their extraction is a strict requirement in immuno-chemical analysis, medical and food industry at receiving concentrates of viruses, bacteria and proteins. Anionic surfactant sodium dodecyl sulfate (SDS) is the most common detergent that is used for extraction and preconcentration of proteins. However, using of SDS solution often leads to denaturation of proteins and loss of their functional activity. Hydrotrope-induced micellar phase of the SDS (SDS-NaCl-H2Sal) is considered as a rational alternative to classical extragens, due to its ability to quantitatively extract of proteins molecules at pH close to the isoelectric point of the protein (pI) and at conditions of their positively charged forms domination (pH ≤ pI). From our point of view, using of the SDS-NaCl-H2Sal phase can provide a stabilization of the native state of proteins after their preconcentration. The objective of the work was to evaluete the possibility of proteins native state preservation after their preconcentration into SDS hydrotrope-induced phase. Peroxidase, catalase and nitrate reductase were chosen as protein model substrates. The change in the catalytic activity of these oxidoreductases in SDS micellar phase was used as indicator of proteins native state preservation. The activity of peroxidase and catalase was determined by the method of permanganametometric titration as the amount of H2O2 that was decomposed under the action of the enzyme. The activity of nitrate reductase was determined spectrophotometrically by the reaction of Griess reagent with nitrite ions formed as a result of the enzymatic decomposition of nitrates. It has been established that the catalytic activity of peroxidase, nitrate reductase and catalase in the SDS micellar phase increases in two, three and four times in comparison with the aqueous solution, respectively. Such rising of oxidoreductases catalytic activities after their preconcentration into the hydrotrope-induced phase of SDS confirms the preservation of proteins native nature.
SILICA GEL MODIFIED WITH 1,2-NAPHTHOQUINONE THIOSEMICARBAZONE FOR SORPTION-PHOTOMETRIC DETERMINATION OF MERCURY (II)
Authors: Zui M. , Diduk S.
Published: April 2019

A sorption-photometric test method for preconcentration and determination of mercury (II) was developed using silica gel modified with 1,2-naphthoquinone thiosemicarbazone. Modification of silica gel with a reagent was carried out from the chloroform-hexane solution for 3 hours. Pocket photometer was used for the measurement of reflected (transmitted) light from silica modified after sorption of thiosemicarbazonate of Hg(II). The adsorption capacity of the sorbent has been found to be 35 μmol g-1 for 1,2-naphthoquinone thiosemicarbazone. The effects of pH, sorption time, the volume of aqueous solution were studied. In the optimal conditions (pH 3.0; 5 min; 25°C) the extraction recovery of mercury is 90–95%. The range of concentrations of mercury (ІІ) is 50–600 µg L–1, the detection limit (S/N = 3) is 23 µg L–1. The method is tested in the model tap and natural water samples, relative standard deviation for 50 μg L−1 of Hg(II) is below 9.0 % (n = 3). The interference effect of the most common heavy metals in natural water, as Fe (III), Zn (II) and Mn (II) ions were studied. The EDTA solution was added for the binding of these metals, which forms strong colorless complexes with EDTA. We have shown that in the presence of 0,01 M EDTA solution Fe (III), Zn (II) and Mn (II) ions, each up to 500 μg L−1, do not interfere with the determination of mercury (II) at its content of 50 μg L−1. The method can be used for the determination of mercury in the sewage of various industries and natural waters with its high content. The proposed method is inexpensive, simple, fast, and environmentally friendly for the determination of the micro quantities of mercury (II) in the water samples.
Life style as a risk factor of human Papillomavirus co-infections with Trichomonas vaginalis in female sex workers
Authors: Odigie Efosa Bolaji , Okungbowa Micheal Awol
Published: April 2019

BACKGROUNDAsymptomatic Trichomonas vaginalis (TV) and human papillomavirus (HPV) co-infection is perceived to have a devastating combined effect on victims. Hence, we investigated TV/ HPV co-infection and determined the risk factors associated with it in female sex workers (FSW).METHODSA cross-sectional study was used to recruit 338 subjects from 6 local government areas (LGAs) in Nigeria for 18 months. Agglutination tests for blood samples, and direct and wet examination of urine and vaginal swabs were conducted in the laboratory. Life style of FSWs was surveyed; data were analyzed with Chi-Square test (X2), paired and unpaired t-test and logistic regression analysis with statistical significance set at p< 0.05.RESULTSLife style characteristics were significantly associated with HPV and TV co-infection (p < 0.001). The model explained 49.9% (Nagelkerke R2) of the variance in infections among FSWs and effectively classified 93.2% of cases. Those involved in oral sex were 1.795 times more likely to be infected compared to those not involved (OR: 1.795; 95% C.I.: 1.005 – 33.525; p=0.001). Street and residential FSWs all have increased likelihood of being infected. Hard drug usage was also associated with an increased likelihood of being infected with the disease (OR: 3.582; 95% C.I.: 1.573 - 11.756; p=0.001).CONCLUSIONSLife style (hard drug usage and oral sex practices) was observed in association with HPV/ TV co-infection in FSWs with a preponderance of 49.9%. This study demonstrated the value of screening for genital infections in HPV positive subjects in order to reduce the probable synergistic effects of co-infections.
Psychometric properties of Persian version of Beck depression inventory in coronary patients
Authors: Ahmadi Seyed Mojtaba , Masjediarani Abbas , Bakhtiari Maryam , Davazdahemamy Mohamad Hasan , Mohamadian Rasul
Published: April 2019

BackgroundObtaining psychometric properties regarding specific populations increases diagnostic accuracy and reduces economic health burdens. Beck depression inventory-second version (BDI-II) is useful for the screening and assessment of depression in clinical and research settings. The aim of the present study was to investigate the psychometric properties of the Persian (Farsi) version of BDI-II in patients with coronary heart disease (CHD).  MethodsA cross-sectional study was conducted on 284 patients with CHD admitted to Imam Ali Hospital in Kermanshah. They were first given a structured clinical interview (SCID-I) and then were asked to complete the Beck depression inventory-II (BDI-II), patient health questionnaire 9 (PHQ-9) and generalized anxiety disorder 7 (GAD-7). Data were analyzed by descriptive statistics, Cronbach’s á, Spearman’s correlation coefficient, exploratory factor analysis and receiver operating characteristic curve (ROC).ResultsThe internal consistency measured using Cronbach’s alpha was 0.90. The obtained correlation of BDI-II with PHQ-9 and GAD-7 was 0.74 and 0.65, respectively (p< 0.001). Factor analysis of the inventory revealed 5 factors, namely cognitive, somatic , impaired performance , negative attitude to self and ,and self punishment respectively. The cut-off point for CHD patients was 11 with sensitivity of 0.78 and specificity of 0.81 according to the Youden index and 10 with sensitivity of 0.80 and specificity of 0.77 according to the two-stage approach. The area under the curve was 0.86 (95% Confidence Interval 0.82-0.90). ConclusionThe Persian version of the BDI-II possesses the acceptable psychometric properties that can be used to screen depression in CHD patients.
Progesterone decrease plasma membrane in human sperm with subnormal hypoosmotic swelling test scores
Authors: Sisca Sisca , Yunaini Luluk , Pujianto Dwi Ari
Published: April 2019

BackgroundProgesterone (P4) is known as a female hormone affecting oocyte maturation and developing uterine wall. A proteomic study identified several receptors including P4 receptors on human sperm. The role of P4 in human sperm cells remains unknown as to whether P4 has non-genomic effects on human sperm. The present study aims to determine the effect of progesterone (P4) on the hyperactivated motility and membrane integrity of human sperm cells.MethodsSemen from normal individuals was obtained from donors. The semen was washed by gradient density centrifugation. P4 was added to each semen sample to final concentrations of 0 (control), 250, 500, 750 and 1000 ng/mL. After the sample treatment was completed, the sperm membrane integrity was assessed with the hypoosmotic swelling test (sodium citrate dihydrate and D-fructose) and the hyperactivated sperm motility parameter was determined with the Computer Assisted Sperm Analyzer [CASA] (Hamilton Thorne, IVOS II, USA). The percentage was then compared between the treatment groups and the control group. The percentage differences were analyzed with the Sigmastat version 2.0 statistical program.ResultsAdministration of P4 increased sperm hyperactivated motility when compared with the control group at a concentration of 500 ng/mL, but the increase was statistically not signicant (p>0.05). In contrast, P4 decreased sperm membrane integrity significantly (p=0.042). And the mean of plasma membrane integrity in all groups was subnormal hypoosmotic swelling test score. ConclusionProgesterone administration tends to increase sperm hyperactivated motility. The integrity of plasma sperm membrane was affected by progesterone.
Study of inter pedicular distance of lumbar spinal canal in perspective of lumbar canal stenosis using plain antero-posterior radiographs in western population of Rajasthan, India
Authors: Bhaumik Meghna , Bhaumik Uday
Published: April 2019

Background: Various causes have been attributed to low backache, but lumbar canal stenosis is turned out to be a major causative factor. It has been suggested that reduced IPD is one among the major cause of narrowing of the spinal canal. The objective of this study was to evaluate the inter pedicular distances in lumbar vertebral column in both sexes of western Rajasthan, India.Methods: The present descriptive type study was conducted in Department of Anatomy and Neurosurgery Sawai Man Singh Medical College, Jaipur, Rajasthan, India. Antero-posterior plain radiographs of lumbar spine in 1000 subjects aged between 20 to 60 years and those who were born and brought up in Rajasthan state were used for the study. All measurements were made by using electronic digital Vernier caliper. Student t-test was used for analysis.                           Results: Mean transverse diameter of lumbar vertebral canal (I.P.D) is minimum at L1 vertebra in both sexes. The maximum values of I.P.D were recorded for vertebra L5 for both sexes.Conclusions: The values of IPD are higher in male population in comparison to female counterparts.
The randomised prospective comparative study to see the duration of analgesia following intravenous or rectal acetaminophen after adenotonsillectomy in children
Authors: Gupta Neerupam , Bhadrala Naine , . Jasmeen , . Saloni
Published: April 2019

Background: The greatest advance in pediatric pain medicine is the recognition that untreated pain is a significant cause of morbidity and even mortality after surgical trauma. Author compared the analgesic efficacy and duration of analgesia of rectal acetaminophen and I.V. acetaminophen.Methods: A total of 80 children in the age group of 2-5 years were randomly selected and divided into 2 groups. Group I received 15 mg/kg I.V. paracetamol and group II received 40 mg/kg rectal acetaminophen. Post-operative pain scores were measured using Face, Legs, Activity, Cry and Consolability scale and duration of analgesia were recorded and compared.Results: The pain scores in group I was lower immediately after extubation and at 30 minutes post extubations but at one, two and four hours the pains score were comparable in both the groups. At 6 hours, the pain score was significantly more in I.V. group and also the duration of analgesia was 9-10 hours in rectal acetaminophen group where as in I.V. group, it was 5-6 hours.Conclusions: Rectal acetaminophen 40 mg/kg produces prolonged analgesia as compared to I.V. paracetamol 15 mg/kg and also is more convenient and cost effective and is devoid of side effects of I.V. cannulation.
When size matters – coordination of growth and cell cycle in bacteria
Authors: Morcinek-Orłowska Joanna , Galińska Justyna , Glinkowska Monika Katarzyna
Published: April 2019

Bacterial cells often inhabit environments where conditions can change rapidly. Therefore, a lot of bacterial species developed control strategies allowing them to grow and divide very fast during feast and slow down both parameters during famine. Under rich nutritional conditions, fast-growing bacteria can divide with time interval equal to half of the period required to synthesize their chromosomes. This is possible due to multifork replication which allows ancestor cells to start copying genetic material for their descendants. This reproduction scheme was most likely selected for, since it enables maximization of growth rate and hence – effective competition for resources, while ensuring that DNA replication will not become limiting for cell division. Even with this complexity of cell cycle, isogenic bacterial cells grown under defined conditions display remarkably narrow distribution of sizes. This may suggest that mechanisms exists to control cell size at division step. Alternative view, with great support in experimental data is that the only step coordinated with cell growth is the initiation of DNA replication. Despite decades of research we are still not sure what the driving forces in bacterial cell cycle are. In this work we review recent advances in understanding coordination of growth with DNA replication coming from single cell studies and systems biology approaches.
"Eight and a half" and "nine syndrome" rare presentation of pontine lesions; case reports and review of literature
Authors: Yadegari Samira , Aghsaei-Fard Masoud , Akbari Mohammadreza , Mirmohammad-Sadeghi Arash
Published: April 2019

Background: Eight-and-a-half syndrome (EHS) is one-and-a-half syndrome [(conjugated horizontal gaze palsy and internuclear ophthalmoplegia (INO)] plus ipsilateral fascicular seventh cranial nerve palsy. Involvement of lower pontine tegmentum including the abducens nucleus, the ipsilateral medial longitudinal fasciculus (MLF), and the adjacent facial colliculus contribute to the clinical findings of EHS. Recently, nine syndrome with addition of hemiparesis or hemianesthesia to EHS (due to involvement of adjacent corticospinal tract or medial lemniscus) is suggested.
Methods: Consecutive patients with presentation 
of EHS or nine syndrome were reviewed from referral neuro-ophthalmology and strabismus clinics.
Results: Three cases of EHS were identified with different etiologies of intracerebral hemorrhage (ICH), demyelination, and neuromyelitis optica spectrum disorder. Moreover, one case of "nine syndrome" due to ICH was described. Brain magnetic resonance imaging (MRI) in all of them revealed lesion in lower tegmentum of pons.
Conclusion: Apart from different etiologies, recognition of EHS or nine syndrome allows precise localization of the lesion to lower pontine tegmentum ipsilaterally.
Effects of meteorological variables and holidays on the concentrations of PM10, PM2.5, O3, NO2, SO2, and CO in Tehran (2014-2018)
Authors: Hadei Mostafa , Yarahmadi Maryam , Jafari Ahmad Jonidi , Farhadi Mohsen , Nazari Seyed Saeed Hashemi , Emam Baharan , Namvar Zahra , Shahsavani Abbas
Published: April 2019

Introduction: The aim of this study was to investigate the concentrations
 
of PM10, PM2.5, O3, NO2, SO2, and CO in Tehran during March 2014-March 2018, and evaluate the effects of holidays and meteorological parameters on
 
the air pollution levels.
 
Materials and methods: Hourly concentrations of PM10, PM2.5, O3, NO2, SO2, and CO in different air quality monitors of Tehran were acquired. The data from each air quality monitored were validated, and only high-quality monitors were included in this study.
 
Results: The 4-year averages of PM10, PM2.5, O3, NO2, SO2, and CO concen-trations were 88.74 (µg/m3), 31.02 (µg/m3), 34.87 (ppb), 71.01 (ppb), 20.04
 
(ppb), and 3.78 (ppm), respectively. Higher concentrations of PM10 and O3 were observed during summer. In case of PM2.5 and CO, autumn and winter concentrations were higher than those in springer and summer. Lower concen-trations of PM10 and NO2 in Fridays were observed comparing to other days of week. Ozone had high concentrations in Fridays as the weekend in Iran. Except for O3, all of the pollutants had higher concentrations in the working days, comparing to those in any type of vacation days. Concentrations of all pollutants rather that SO2 and O3 in Nowruz holidays were statistically lower than those in the working days. By controlling for the effects of meteorologi-cal variables, our results showed that the air pollution control policies and ac-tions have been not effective for particulate matter.
 
Conclusion: These results determines the time periods in which the concen-trations of criteria air pollutants are high. This can be very useful for an-nouncing alarms for citizens, and designing the air pollution control plans. In addition, more effective actions should be designed and implemented for reducing ambient levels of particulate matter.
Smart parking :an efficient approach to city’s smart management and air pollution reduction
Authors: Faraji Seyed Jalalaldin , Nozar Marjan Jafari
Published: April 2019

Introduction: Due to increasing the population of cities and the physical-spatial expansion of the cities, vehicles are being used progressively, which has caused many problems for the cities including traffic increase, chaos in finding urban parking lots, increase of environmental pollution, decrease of citizens’ satisfaction, and so on. Among the many urban problems, parking lot is one of the issues that has been heavily debated in recent years. The lack of sufficient number of parking lots, on the one hand, and the related disorder and management problems, on the other hand, have led to a range of managerial and environmental problems. Meanwhile, one of the paradigms that has focused on this issue in recent years is smart city paradigm, which has offered the smart parking. This paradigm believes that parking, as a part of the city’s space, can be smart and can help urban management.
 
Materials and methods: This is an applied research in terms of purpose and a descriptive-analytical research in terms of nature. The required data were collected using documentary and field studies and SWOT method was used to analyze the data.
 
Results: This study was conducted to evaluate and investigate the role of smart parking in increasing the efficiency of urban management and its im-pact on reducing air pollution.
 
Conclusion: Finally, the conclusion of the research have led to key strategies for achieving the research goal.
Developing codes for validation of PM10, PM2.5, and O3 datasets using R programming language
Authors: Nabizadeh Ramin , Hadei Mostafa
Published: April 2019

Introduction: The wide range of studies on air pollution requires accurate and reliable datasets. However, due to many reasons, the measured concentra-tions may be incomplete or biased. The development of an easy-to-use and reproducible exposure assessment method is required for researchers. There-fore, in this article, we describe and present a series of codes written in R Programming Language for data handling, validating and averaging of PM10,
PM2.5, and O3 datasets.
 
Findings: These codes can be used in any types of air pollution studies that seek for PM and ozone concentrations that are indicator of real concentra-tions. We used and combined criteria from several guidelines proposed by US EPA and APHEKOM project to obtain an acceptable methodology. Separate
 
.csv files for PM 10, PM 2.5 and O3 should be prepared as input file. After the file was imported to the R Programming software, first, negative and zero values of concentrations within all the dataset will be removed. Then, only monitors will be selected that have at least 75% of hourly concentrations. Then, 24-h averages and daily maximum of 8-h moving averages will be calculated for PM and ozone, respectively. For output, the codes create two different sets of data. One contains the hourly concentrations of the interest pollutant (PM10, PM2.5, or O3) in valid stations and their average at city level. Another is the
 
final 24-h averages of city for PM10 and PM2.5 or the final daily maximum 8-h averages of city for O3.
Conclusion: These validated codes use a reliable and valid methodology, and eliminate the possibility of wrong or mistaken data handling and averaging. The use of these codes are free and without any limitation, only after the cita-tion to this article.
Das relações entre posse, localização e existência em Apurinã (Aruák)
Authors: Freitas Marília Fernanda Pereira de , Facundes Sidney Da Silva
Published: April 2019

Em Apurinã, língua Aruák falada ao longo de vários afluentes do rio Purus,sudoeste do Amazonas, as noções de posse, localização e existência podem ser expressas por uma mesma forma verbal. Em certas variedades da língua, o sufixo locativo pode expressar também posse em construções nominais. Essa característica de Apurinã, contudo, não é um caso isolado, uma vez que, em diferentes línguas, é recorrente a codificação linguística da posse estar relacionada à de localização e existência (cf.: HEINE, 1997, 2001; BARON; HERSLUND, 2001; STASSEN, 2009, entre outros). Neste artigo, buscaremos mostrar as relações conceituais e gramaticais entre esses três conceitos em Apurinã, focalizando a forma verbal awa, por meio da qual é possível verificar sincronicamente que a posse teve como domínio fonte a existência em construções verbais, dada a ocorrência de esquemas de eventos (HEINE, 1997, 2001) que revelam processos de gramaticalização operando na língua.
Quando a língua carrega estigmas: ideologias linguísticas Paumari e Apurinã no município de Lábrea
Authors: Bruno Ana Carla dos Santos
Published: April 2019

Neste artigo analisamos as experiências de jovens indígenas e suas famílias no contexto urbano no município de Lábrea. Nós discutimos as ideias, crenças, representações e atitudes que os Apurinã e Paumari tem sobre suas línguas e a língua Portuguesa utilizando a abordagem da Ideologia Linguística. Através do método etnográfico observarmos assim, as situações rotineiras de interação nas diferentes esferas das atividades sociais: em casa, na escola, com “os outros” e com seus parentes para uma melhor compreensão das representações que os mesmos têm sobre a vida na cidade e suas experiências nas escolas urbanas.
Configurações de liberdade em cartas de alforria de Catalão-Goiás (1861-1876)
Authors: Amorim Amanda Moreira de , De Paula Maria Helena
Published: April 2019

Neste estudo, discutimos como se configurou a alforria na cidade de Catalão entre os anos de 1861 e 1876. Para tanto, segundo normas propostas em Megale e Toledo Neto (2006), editamos semidiplomaticamente 10 (dez) manuscritos exarados neste período, constituintes de um livro do Cartório do 2º Officio – Tabelionato de Catalão. Após a edição, identificamos os tipos e espécies documentais dos manuscritos, conforme Bellotto (2002), e discorremos sobre os diferentes tipos de alforria utilizados no Brasil escravocrata, utilizando autores como Santos (2008). Ao fim, discutimos as diferentes interpretações das práticas de alforria no período e possíveis concepções de liberdade presentes em Catalão na época, relacionando-as com o momento histórico no qual a cidade estava inserida, século XIX, a partir de autores como Pedro (2009), Ferraz (2010), entre outros. Ao perscrutar os fatores históricos e culturais abrangidos pelos manuscritos aqui analisados, alcançamos a terceira função da Filologia, a função transcendente (SPINA, 1977).
Apresentação
Authors: Picanço Gessiane , Virtanen Pirjo Kristiina
Published: April 2019

Apresentação do no. 50 da Revista Moara
ERIC una alternativa para la búsqueda de información académica dirigida a investigadores del área de educación
Authors: Mosquera Ana María
Published: April 2019

Sin duda estamos ante un fenómeno del nuevo modelo de transmisión científica que ha revolucionado tanto las formas de llevar a cabo los procesos editoriales, como también la forma en la que los investigadores recogen, almacenan y citan la información insumo de sus trabajos de investigación. Asumir los retos que generan estos nuevos modelos de transmisión científica significa estar en constante estudio de las nuevas tecnologías de la información académica. Las bases de datos se han desarrollado desde las últimas décadas del siglo XX para facilitar el acceso a información sistematizada y relacionada por su contexto (Arreguín, 2017), permiten tratar una amplia cantidad de información en poco espacio, recuperarla de forma precisa y rápida, e incluso, acceder a información custodiada en soportes informáticos de larga distancia. Hoy en día, diferentes instituciones han agrupado o creado nuevos espacios de información separándolos por áreas temáticas haciendo mucho más precisa la búsqueda por disciplinas académicas. En esta oportunidad compartiremos con nuestros lectores una herramienta de suma importancia para los procesos investigativos en el área de educación: ERIC.
关于土木工程施工质量控制与安全管理的探讨
Authors: 遥 程
Published: April 2019

伴随经济全球化的不断深入，相对的，我国人民生活水平也有所提升，同时也带动了相关行业的发展，建筑行业便是其一。随着建筑行业的飞速发展，土木工程的数量亦有所提升，此工程的安全管理和施工质量非常重要。本文笔者将从现实状况入手，简要探讨相关问题，望可供参考。
关于市政工程施工管理中环保型施工措施的应用
Authors: 宗标 吕
Published: April 2019

近年来，在市政工程施工领域，国家大力提倡绿色环保理念，要求施工企业在施工过程中使用绿色环保材料，采用新技术，应用环保型施工措施，以减少污染，为人民群众提供一个健康、绿色的生活环境。施工企业为了响应国家号召，针对市政工程施工对环境造成污染的实际情况，积极探讨和研究适时可行的施工措施，取得了阶段性成果。
预制装配式建筑外墙防水密封现状及存在的问题探析
Authors: 俊铭 赵
Published: April 2019

在我国建筑行业中，越来越多的新技术被企业们所采用，并且为企业的发展作出了积极的贡献，其中，预制装配式建筑作为一种新的技术，其应用效果尤为显著。然而在应用预制装配式建筑的过程中，还存在着一些问题，其中，其应用时间较短，所以建筑企业应当想办法解决这些问题，只有这样才能促进自身建筑水平的提高，提供建筑物质量。
关于城市地下综合管廊管理系统及施工技术探析
Authors: 闽 汤
Published: April 2019

 随着我国城市化进程的不断加快，我国地下综合管廊的应用价值日益凸显，城市地下综合管廊管理系统是城市运营的重要保障，直接影响城市建设的综合发展，一旦其出现破损、堵塞的情况，就会对城市居民的日常生活带来负面影响。基于此，本文首先对城市地下综合管廊管理系统进行分析，然后对其具体的施工技术进行探讨，希望为相关人士提供有价值的参考。
基于建筑工程大体积混凝土建筑施工技术分析
Authors: 绍波 张
Published: April 2019

由于我国建筑行业的快速发展，人们对建筑物的整体质量水准要求也越来越高，为此必须要加强对建筑工程大体积混凝土施工技术进行详细的分析，保证建筑工程大体积混凝土工程施工的整体质量和效果。
探讨电气工程自动化的仪表测控技术
Authors: 长建 朱
Published: April 2019

随着我国经济的快速发展，电力行业的发展前景也较为良好，进入了上升时期。在自动化技术不断提高的今天，电气工程自动化也受到了人们的瞩目，并且逐渐具备了较大的潜力。然而人们虽然将电气工程自动化列为了重点项目，但是却仍未对仪表测控技术给予较强的关注，本文将对电气工程自动化的仪表测控技术展开进一步探讨。
Zaštita dječjih prava u humanitarnim akcijama s osvrtom na afričke zemlje
Authors: Osmančević Leali
Published: April 2019

Rad se bavi ulogom medija u društvu te važnošću profesionalnoga izvještavanja i odgoja za medije, posebice u kontekstu djece i zaštite dječjih prava. Humanitarne akcije namijenjene djeci česta su tema u medijima, no paradoks je da su djeca i njihove potrebe, kao i njihova prava, posebice parvo na privatnost i izražavanje mišljenja, marginalizirani. Na javnost se često apelira putem medija kroz humanitarne akcije te se izazivanjem snažnih i krajnjih emocija potiče na pomoć. Nerijetko je baš u takvim slučajevima dijete kao glavni subjekt humanitarne akcije ogoljeno te je njegova intima dostupna svima, često pod argumentom da je sve što je u interesu javnosti opravdano. Cilj je rada, pregledom dosadašnjih spoznaja, ukazati na važnost zaštite djece kao najosjetljivije skupine društva i dječjih prava u prosocijalnim sadržajima kao što su humanitarne akcije. Rad će dati i pregled stanja prikazivanja humanitarnih akcija za pomoć djeci u afričkim zemljama.
Cyber Risk impact Assessment - Assessing the Risk from the IoT to the Digital Economy
Authors: Radanliev Petar , De Roure David , Nurse Jason R.C. , Nicolescu Razvan , Huth Michael , Cannady Stacy , Mantilla Montalvo Rafael
Published: April 2019

We present an updated design process for adapting and integrating existing cyber risk assessment approaches for impact assessment for the risk from IoT to the digital economy. The new design process includes a set of changes to the original standards (e.g. NIST) that are adapted for the IoT cyber risk in this paper. This paper also presents a new framework for impact assessment of IoT cyber risk, specific for the digital economy.
Bacteriological Assessment and Antibiotics Susceptibility Profile of Bacteria Recovered from Pond Water, Fish Skin, and Gut in Ile-Ife, Osun State, Nigeria
Authors: Fakorede Cecilia Nireti , Fatokun Evelyn Nwadinkpa , Philip Kantiok Blessing , Iwu Chinwe Juliana , Jaja Ishmael Festus
Published: April 2019

Fish currently provide 6.7% of all protein consumed by humans globally, nevertheless, aquaculture system has been linked to fish and environmental contamination and disease outbreak. This study aims to isolate, identify, and characterise, bacteria in fish and pond water as well as the antibiotic profile of detected Coliforms. The susceptibility of the isolates was tested using the Kirby-Bauer disc diffusion method on Mueller Hinton agar. A total of forty (40) isolates were isolated from the water samples of which (5) species were Gram Positive bacteria and 35 species of Gram Negative bacteria. The temperature for all ponds ranged from 25°C to 28°C. The mean bacteria count for pond C1 to T2 were 4.9 × 102, 4.9 × 102, 5.4 × 102, 2.5 × 102, 2.2 × 102, and 1.9 × 102 CFU/ml respectively. All isolates were 100% resistant to ceftazidime, cefuroxime and augmentin. More resistance to cefixime (80%) and gentamicin (73.3%) and nitrofurantoin (66.7%) was recorded. However, only 16.6% and 8.3% of the isolates were resistant to ciprofloxacin and ofloxacin respectively. The multiple antimicrobial resistance index (MARI) ranged from 0.5 to 0.9. The water quality parameters (temperature and pH) and the type of bacteria detected in all pond type did not differ significantly. The Multi-drug resistance bacteria detected could be pathogenic to fish and consumers.
The Distribution of Tryptophan-Dependent Indole-3-Acetic Acid Synthesis Pathways in Bacteria Unraveled by Large-Scale Genomic Analysis
Authors: Zhang Pengfan , Jin Tao , Kumar Sahu Sunil , Xu Jin , Shi Qiong , Liu Huan , Wang Yayu
Published: April 2019

Bacterial indole-3-acetic acid (IAA), an effector molecule in microbial physiology, plays an important role in plant growth-promotion. Here, we comprehensively analyzed about 7282 prokaryotic genomes representing diverse bacterial phyla, combined with root-associated metagenomic data to unravel the distribution of tryptophan-dependent IAA synthesis pathways and to quantify the IAA synthesis-related genes in the plant root environments. We found that 82.2% of the analyzed bacterial genomes were potentially capable of synthesizing IAA from tryptophan (Trp) or intermediates. Interestingly, several phylogenetically diverse bacteria showed a preferential tendency to utilize different pathways and tryptamine and indole-3-pyruvate pathways are most prevalent in bacteria. About 45.3% of the studied genomes displayed multiple coexisting pathways, constituting complex IAA synthesis systems. Furthermore, root-associated metagenomic analyses revealed that rhizobacteria mainly synthesize IAA via IAM and tryptamine (TMP) pathways and might possess stronger IAA synthesis abilities than bacteria colonizing other environments. The obtained results refurbished our understanding of bacterial IAA synthesis pathways and provided a faster and less labor-intensive alternative to physiological screening based on genome collections. The better understanding of IAA synthesis among bacterial communities could maximize the utilization of bacterial IAA to augment the crop growth and physiological function.
The Depths of Despair Among US Adults Entering Midlife
Authors: Gaydosh Lauren , Hummer Robert A. , Hargrove Taylor W. , Halpern Carolyn T. , Hussey Jon M. , Whitsel Eric A. , Dole Nancy , Harris Kathleen Mullan
Published: April 2019

Objectives. To test whether indicators of despair are rising among US adults as they age toward midlife and whether this rise is concentrated among low-educated Whites and in rural areas.

Methods. We used data from the National Longitudinal Study of Adolescent to Adult Health, a nationally representative study of US adolescents in 1994. Our sample was restricted to individuals who participated in 1 or more of 5 waves (1994–2017) and self-identified as non-Hispanic White, non-Hispanic Black, or Hispanic (n = 18 446). We examined change in indicators of despair from adolescence to adulthood using multilevel regression analysis, testing for differences by race/ethnicity, education, and rurality.

Results. We found evidence of rising despair among this cohort over the past decade. This increase was not restricted to low-educated Whites or to rural areas.

Conclusions. Results suggest that generally rising despair among the young adult cohort now reaching midlife that cuts across racial/ethnic, educational, and geographic groups may presage rising midlife mortality for these subgroups in the next decade.
An unusual trigger cause of branch vein occlusion and vitreous hemorrhage from prepapillary arterial loop: A case report
Authors: BenAbderrahim Kais
Published: April 2019

Background
To describe a rare case of vein occlusion and vitreous hemorrhage as complications of prepapillary arterial loop. In this report, sinusitis was recognized as an uncommon cause of bleeding from this optic disc abnormality.
Case presentations: A case of a-33-old-man suffering from acute sinusitis and presented with vitreous hemorrhage. Etiologic investigations were normal. Fundus examination and angiography confirmed the diagnosis of prepapillary arterial loop and a mild peripheral vein occlusion. Good prognosis was noted after the treatment of sinusitis and water drink.
Conclusions
Sinusitis should be considered as a possible trigger factor of bleeding from prepapillary loops in any healthy young patient. An early treatment of the sinus inflammation may lead to a good prognosis.
Try Out
Authors: Mohammed Haitham
Published: April 2019

This is a try out for OJS and Crossref plugin
Comparison of modern numerical methods for shock wave simulation in gases
Authors: Balapanov D.M.
Published: April 2019

A comparative analysis of several numerical methods for hyperbolic equations is carried out aiming to select the most effective of them for purposes of simulation of shock-wave flows. The computational efficiency is determined using a relation of the computation time and the error of the result obtained. Schemes for temporal and spatial discretization are tested separately by solution of the Riemann problem. According to the test results, an optimal combination of discretizations was chosen. The algorithm obtained is superior to all others in the accuracy and performance within the entire ranges of the Courant number and space steps.
About one efficient pipeline parallel algorithm for solving problems of continuum mechanics
Authors: Mikhaylenko С.I. , Khizbullina S.F.
Published: April 2019

The paper proposes a technique for pipelining a computational process in the spatial decomposition of the computational domain for constructing efficient parallel algorithms for numerical solution of hydrodynamic problems oriented to cluster computing systems. Methods for achieving high efficiency of a parallel application based on a finite-difference explicit or semi-explicit numerical scheme are shown. An expression is written to determine the minimum size of the calculated area, at which the efficiency of the parallel program approaches unity.
Equation of state for liquid water
Authors: Nigmatulin R.I. , Bolotnova R.Kh.
Published: April 2019

The equation of state for water (EOSW) in Mi–Gruneisen form with Born–Mayer potential for densities less, than 1 g/cm^3 is developed. The equation is applicable to moderate and high pressures (up to 2·10^12 Pa), in particular, to explosive and static pressures in the range of densities from 0.7 to 3.8 g/cm^3 . The equation for the Gruneisen coefficient that depends not only on the specific volume but also on the temperature is received. The proposed method by the experimental data for dependencies on specific volume and temperature the heat capacity and isochoric temperature coefficient of pressure increase allows to calculate the Gruneisen coefficient and the internal heat energy.
Filtration of anomalous thermoviscous liquid in layered non-uniform formation
Authors: Khizbullina S.F.
Published: April 2019

The mathematical model is developed and the numerical research of a filtration flow features of liquid with model nonmonotonic dependence of viscosity on temperature is conducted. Existence of the ”viscous barrier“ defining character of a filtration flow of anomalous thermoviscous liquid in the porous medium is established. Characteristic pictures of the steady distribution of viscosity and temperature in layered non-uniform formation are constructed. It is established that formation flow rate depends on a maximum of viscosity coefficient and pressure difference essentially.
Primera época - Año X, Número 31, agosto 2009
Authors: De San Luis Revista de El Colegio
Published: April 2019

Este número corresponde a la primera época de la Revista de El Colegio de San Luis, denominado VETAS.
Presentación número 18
Authors: El Colegio de San Luis Revista de
Published: April 2019

Se expone el número en su totalidad.
Texto Completo del No.18 - Revista de El Colegio de San Luis Nueva Época
Authors: El Colegio de San Luis Revista de
Published: April 2019

Revista de El Colegio de San Luis en su totalidad, incluyendo artículos, notas y reseñas del Núm. 18
Regiones, subalternos, invisibles, cultura política y desigualdad. Crisis y retorno de lo social en la historia de América Latina en el siglo XX
Authors: Santamaría García Antonio
Published: April 2019

El objetivo de este trabajo es analizar la historiografía reciente sobre América Latina en el siglo XX, en especial la agrupada genéricamente en torno al pensamiento posmoderno. Metodológicamente, está estructurado en función del análisis de las principales tendencias historiográficas, las aportaciones más representativas y su crítica. Como resultado, se constata que se ha hecho un esfuerzo metodológico radical que ha renovado los estudios, pero que ha ocasionado una dispersión en el conocimiento que requiere ejercicios de síntesis. Por esa razón, sus limitaciones estriban en la amplitud de las aportaciones examinadas, la enormidad del espacio que tratan, compuesto por multitud de historiografías nacionales. Su originalidad es la consistencia con los resultados: el ejercicio de síntesis y crítica para justipreciar los resultados de una vasta renovación historiográfica. Por tratarse de un ensayo historiográfico, los hallazgos y las conclusiones están implícitos en el objetivo, metodología, originalidad y valor del artículo.
Contribution of Resveratrol in the Development of Novel Urease Inhibitors: Synthesis, Biological Evaluation and Molecular Docking Studies
Authors: Kataria Ritu , Khatkar Anurag
Published: April 2019

Aims and Objective:

A new library of resveratrol derivatives was designed and synthesized in excellent yield via two-step reaction utilizing Vilsmeier reaction as the first step and subsequent addition of substituted aromatic amine in the second step.

Methods:

Synthesized compounds were investigated for their antioxidant as well as for in vitro inhibition activity against jack bean urease enzyme. Compounds R3b and R4 with IC50 value 18.85±0.15 and 21.60±0.19µM against urease enzyme and 6.01±0.07 and 7.52±0.14µM in vitro- DPPH free radical scavenging activity have emerged as most active molecules from the selected library. Molecular simulation studies were also carried out for determining the interaction detail of newly synthesized compounds within a protein pocket.

Results and Conclusion:

Newly synthesized compounds were found to possess better docking score (-5.941 to -6.894) and binding energy (-46.854 to -56.455) as compared to the parent resveratrol (-5.45 and -20.155) which revealed that the newly synthesized compounds bind in a better way as compared to the parent molecule
Perivascular Adipose Tissue Oxidative Stress on the Pathophysiology of Cardiometabolic Diseases
Authors: Victorio Jamaira A. , Davel Ana P.
Published: April 2019

Most of the systemic blood vessels are surrounded by the perivascular adipose tissue
(PVAT). Healthy PVAT is anticontractile and anti-inflammatory, but a dysfunctional PVAT has
been suggested to link cardiometabolic risk factors to vascular dysfunction. Vascular oxidative
stress is an important pathophysiological event in cardiometabolic complications of obesity, type 2
diabetes, and hypertension. PVAT-derived adipocytes generate reactive oxygen species (ROS) including
superoxide anion and hydrogen peroxide that might signal to the vascular wall. Therefore,
an abnormal generation of ROS by PVAT emerges as a potential pathophysiological mechanism
underlying vascular injury. This review summarizes new findings describing ROS production in the
PVAT of several vascular beds, major sources of ROS in this tissue including mitochondria,
NADPH oxidase and eNOS uncoupled, and finally, changes in ROS production affecting vascular
function in the presence of cardiometabolic risk factors and diseases.
P Wave Dispersion and Silent Atrial Fibrillation in Cryptogenic Stroke: The Pathogenic Role of Inflammation
Authors: Acampa Maurizio , Lazzerini Pietro E. , Guideri Francesca , Tassi Rossana , Cartocci Alessandra , Martini Giuseppe
Published: April 2019

Background:

Cryptogenic stroke (CS) represents 25% of ischemic strokes. Especially
after CS, the detection of atrial fibrillation (AF) is important because it provides clues to the
mechanism of stroke. However, the relationship between AF and stroke appears more complex than
a simple cause-effect mechanism, suggesting that the association between AF and stroke may be
due to other systemic and atrial factors including systemic inflammation that may lead to atrial
remodeling and subsequent atrial cardiopathy.

Objective:

The aim of this study was to evaluate the relationship among different electrocardiographic
parameters, inflammatory markers and in-hospital AF occurrence after acute CS.

Methods:

222 patients with CS underwent 12-lead resting ECG at admission and 7-day in-hospital
ECG monitoring. The following indices were evaluated: P-wave dispersion (PWD), P-wave index,
P-wave axis, atrial size and high-sensitivity-C reactive protein (CRP).

Results:

AF was detected in 44 patients. AF-group had significantly higher PWD, P-wave index,
PR interval, CRP and greater frequency of abnormal P-wave axis in comparison with no-AF group.
There was a significant correlation between CRP and PWD (r=0.28). By using the mediation
analysis, performed according to the “bootstrapping” method, we found that PWD is a significant
mediator variable of the relationship between CRP and AF occurrence, accounting for 40% of the
association.

Conclusions:

In cryptogenic stroke, high PWD is partly due to systemic inflammation that
increases AF risk possibly via atrial electric remodeling. These findings could also suggest
inflammation as a possible therapeutic target in order to prevent atrial electrical alterations and
finally AF occurrence in CS.
Comparison of Soil Pressure Calculating Methods Based on Terzaghi Model in Different Standards
Authors: Shao Lianfen , Zhou Xin , Zeng Hongbiao
Published: April 2019

Soil pressure calculation method for Trenchless pipe based on the Terzaghi Soil Arching Theory have been defined in Chinese national standard GB50332-2002, North America standard ASTM F1962-09 and European standard BS EN 1594-2009. At present, the calculation results from all of the three standards have shown discrepancies with the measured soil pressure. There is little research on the issue of discrepancies in each standard based on the same Terzaghi soil arching theory. The comparison has been made to investigate the differences among all the three standards. The conclusions can be made that the calculation in both GB50332 and ASTM F1962 ignores the cohesion and compressibility of the soil, using the same method to calculate sand soil and clay soil, and does not fully consider the effect of the internal friction angle of soils, which lead to a small impact of the soil properties on the arching factor. The BS EN 1594 standard considers the cohesion strength of soils and uses two different methods for pressure of sand soil and clay soil, respectively; The comparisons show that the cohesion strength has a significant impact on soil pressure, and that the former two standards showed a higher soil pressure than BS EN 1594 since both of them ignored the cohesion strength of soils.