bluuebunny/crossref_metadata_2025 huggingface dataset:
Jakość życia osób starszych i jej determinanty
Authors: Babicz-Zielińska Ewa , Bartkowicz Joanna , Tańska Magdalena
Published: October 2021

Wzrost liczby osób starszych w danej populacji jest następstwem lepszych warunków bytowych, opieki zdrowotnej i innych czynników charakterystycznych dla rozwiniętych społeczeństw. Jednym z wyznaczników samopoczucia ludzi jest jakość ich życia określana przez zdrowie, psychikę, niezależność czy więzi społeczne. Problem jest szczególnie ważny w grupie osób w starszym wieku i był przedmiotem licznych doniesień naukowych. Celem niniejszego artykułu był krytyczny przegląd publikacji naukowych dotyczących problematyki jakości życia osób starszych i wskazanie na tej podstawie najważniejszych osiągnięć oraz obszarów wymagających dalszych badań. Pojęcie jakości życia nie jest dotychczas precyzyjnie zdefiniowane, podobnie jak determinanty charakteryzujące to pojęcie. Scharakteryzowano determinanty, które zdaniem autorów mają istotne znaczenie w ocenie jakości życia ludzi starszych. Zaliczono do nich zdrowie, żywienie, aktywność umysłową i fizyczną, wykształcenie, kontekst społeczny. Zdrowie jest najbardziej istotnym czynnikiem kształtującym jakość życia, niezależnie od rejonu geograficznego. Stan zdrowia wpływa przede wszystkim na samodzielność życiową. W licznych publikacjach dominuje pogląd, że otoczenie społeczne jest drugą determinantą jakości życia. Otoczenie jest przy tym rozumiane jako rodzina, przyjaciele i znajomi, wreszcie grupa społeczna w podobnym wieku. Aktywność umysłowa (w tym edukacja) i fizyczna to dalsze istotne czynniki wpływające na jakość życia seniorów, przy czym aktywność umysłowa była częstsza niż aktywność fizyczna. Przegląd dotychczasowych wyników badań jakości życia osób starszych skłania do stwierdzenia, że istnieją zróżnicowane domeny i determinanty jakości. Badania tej grupy społecznej były fragmentaryczne, mimo to dobrze opisywały model jakości życia seniorów. W szczególności wskazywano na celowość różnych przedsięwzięć poprawiających jakość życia w okresie późnej starości.
Pedagogical practice of philological students: cooperation with the basic school
Authors:   Novosibirsk State Pedagogical University, Zaidman Irina Naumovna
Published: October 2021

The author considers pedagogical practice from the positions of professional risks presented in the scientific literature, taking into account which he builds a practice-oriented system of complex dispersed training of students for practice in the Russian language. At the same time, the emphasis is on interaction with basic schools, where future teachers receive their first professional experience. The university teachers ‘ knowledge of the school’s requirements, the general concept of practice, long-term cooperation of educational organizations of higher and secondary education, the built system of propaedeutic methodological training of students allow them to develop general pedagogical and special competencies of novice teachers, prevent possible risks, and contribute to their successful adaptation at school. Research methods: analysis of scientific literature, associative experiment, method of unfinished sentences, questionnaire, observation, reflexive essay, experimental training, conversation with the employer.
Sexuality Among Adolescents With Intellectual Disability: Balancing Autonomy and Protection
Authors: Enujioke Sharon C. , Leland Brian , Munson Emily , Ott Mary A.
Published: October 2021

Adolescents and young adults living with intellectual disability (ID) have made significant advancements integrating into multiple aspects of western society, but there has been less progress with regards to sexual health. While advocating for individuals with ID to live life to the fullest, pediatricians have practical concerns regarding the ability to consent to sex as well as avoid coercion and manipulation in sexual encounters. This has led to tension between supporting the autonomy of a patient with ID while protecting them from harm. We present a case of a young adult with moderate ID who is engaging in a sexual relationship with her boyfriend without parental knowledge. The pediatrician must decide the most appropriate course of action to support the patient’s autonomy but also ensure that the patient is a willing participant and understands the risks of engaging in sexual activity. This case highlights 4 main themes: (1) practical concerns when approaching sexual health in the adolescent with ID, (2) advocating for the rights of those with ID to live life to the fullest, (3) the critical inclusion of individuals with ID in decisions directly affecting them and their peer group, and (4) decision-making capacity and respect for autonomy in individuals with ID. This case highlights the delicate balance providers face when providing care to adolescents and young adults with ID: supporting autonomy to make decisions while reducing harm to a vulnerable population.
HERITABILITY AND GENETIC ADVANCE OF YIELD AND YIELD RELATED TRAITS IN WINTER FEED BARLEY VARIETIES
Authors: Dyulgerov N. , Dyulgerova B.
Published: October 2021

A field experiment was conducted at the Institute of Agriculture – Karnobat, Southeastern Bulgaria in three growing seasons. Twenty barley varieties were laid out in a complete block design with 4 replications. Variability, heritability and genetic advance for yield-related traits and grain yield were studied. There were significant differences among varieties for all studied traits including grain yield. Heritability in broad sense ranged from 10.10% for grain yield to 94.60% for spike length. High heritability estimates and genetic advance as percent of mean was computed for spike length and 1000 grain weight. Besides, genotypic coefficient of variance and phenotypic coefficient of variance had low differences for these characters. Therefore, these traits could be easily improved by selection. Grain yields of the check varieties Veslets and Izgrev were 5.27 t/ha and 5.09 t/ha, respectively. The varieties that performed better than the checks for grain yield were PA86-49-95 (6.43 t/ha), Bojin (6.01 t/ha), and Express (5.90 t/ha). Hence, using these varieties in the breeding program of winter feed barley could lead to the improvement of grain yield.
CURRENT PSYCHOSOCIAL RISK FACTORS IN THE HEALTHCARE SECTOR
Authors: Sandeva G. , Gidikova P.
Published: October 2021

The increased demands of modern work practices on workers in all sectors of employment caused the emerging of various psychosocial risk factors, which can be dangerous for their health and work ability. Furthermore, while industrial working conditions are usually sector-specific, psychosocial risk factors are present in every establishment, especially in the services and healthcare. Healthcare workers are some of the most heavily exposed to various psychosocial risks such as mental and physical workload, dealing with demanding patients, high responsibility, shift work, poor work-rest balance, among others. Unacceptable behaviors in healthcare, insider and third-party violence and harassment in particular, are occurring ever so often. These adverse factors take their toll on the physical and mental health of healthcare workers in the form of increased cases of psychosomatic disorders, anxiety, depression, burnout, and suicide attempts. Novel challenges in recent times, e.g. the 2020 coronavirus epidemic, further deteriorate the work environment and strain the coping capabilities of workers. An additional issue in Bulgaria is the shortage and ageing of healthcare professionals, which leads to overworking and higher vulnerability to the negative effects of psychosocial hazards. This report aims to identify the most prevalent psychosocial factors in healthcare settings, as well as their impact on the health and wellbeing of healthcare professionals. Furthermore, some helpful tips and preventive strategies are proposed for increasing job quality in healthcare through social support and better work-life balance.
Farzaneh Hemmasi. 2020. Tehrangeles Dreaming: Intimacy and Imagination in Southern California’s Iranian Pop Music.
Authors: Ahmadian Nasim
Published: October 2021

Farzaneh Hemmasi. 2020. Tehrangeles Dreaming: Intimacy and Imagination in Southern California’s Iranian Pop Music. Durham, NC: Duke University Press. 245pp. ISBN 978-1-4780-0836-1 (pbk)
Disparities in stressful life events among children aged 5–17 years : United States, 2019
Authors: Garnett Matthew , Rose Spencer Merianne , Hedegaard Holly
Published: October 2021

Data Brief number 421
El El desafío de la pobreza en África
Authors: Akanji Ajibola Anthony
Published: October 2021

En este artículo se investiga a Nigeria como estudio de caso, y busca resaltar un modo de redirigir los recursos de África para resolver el problema de la pobreza que actualmente experimenta el continente. Se centra en la reestructuración de recursos humanos y canalización de recursos materiales. Usando el análisis descriptivo como método de investigación, examina datos relevantes e intenta hacer dos afirmaciones fundamentales y justificables. La primera afirmación es que el “cooperativismo innovador”, es una forma de socialización económica desarrollada entre personas en forma de autoayuda colectiva, construidas alrededor de las ideas de cooperación, cooperativas y economía solidaria, debería estar en el centro de romper el círculo duradero de la pobreza africana; un hilo de pobreza que tiene a menudo se muestra resistencia al desarrollo. Aunque el cooperativismo innovador es un concepto viable para abordar El desafío de la pobreza y la movilización para el desarrollo, el concepto aún no ha sido aceptado por una sección significativa del pueblo nigeriano, cooperativas, grupos mutuos y de autoayuda debido a la ausencia de incentivos políticos.
Análisis de evolución de la asistencia técnica y el fomento de cooperativas rurales en Colombia
Authors: Vargas Prieto Amanda , Sánchez Álvarez César
Published: October 2021

En la búsqueda de formalización de la economía y el ordenamiento territorial rural el legislador colombiano dio forma a las Zonas de Interés de Desarrollo Rural, Económico y Social (Zidres). Estas zonas son territorios de vocación agropecuaria que serán aprobados a partir de proyectos productivos individuales o asociativos. Según el artículo 1 de la Ley 1776 de 2016, la asistencia técnica será realizada por entidades encargadas desde un enfoque integral en el ciclo de los proyectos, garantizando la provisión de los paquetes tecnológicos, fomento de formas empresariales y servicios sociales básicos para el desarrollo rural.  A través de una metodología cualitativa de análisis heurístico e histórico se identifican dos fases de un análisis en retrospectiva de un siglo de historia en la evolución de las instituciones que han promovido y fomentado la asistencia técnica en diferentes organizaciones y en el caso particular de las cooperativas agrarias. Los momentos identificados se corresponden a momentos históricos que han condicionado la formulación de las políticas públicas.
Importance of Vector Velocity Echocardiography and NT-proBNP in Identifying Individuals with Preclinical Hypertrophic Cardiomyopathy
Authors: L Yu , Q Zhou , X Long , Q Peng , Z Yang
Published: October 2021

Background and aim: Familial HCM gene mutation carriers without overt left ventricular hypertrophy (gene positive/phenotype negative G+/P-) can harbor subclinical changes in cardiovascular structure and function that precede the development of Hypertrophic Cardiomyopathy (HCM). Conventional echocardiography parameter ejection fraction is normal in HCM patients. We sought to investigate whether Velocity Vector Imaging (VVI) and NT-proBNP are more sensitive to evaluate heart function.
Modelling flood hazard in dry climates of southern Africa: a case of Beitbridge, Limpopo Basin, Zimbabwe
Authors: Lloyd Chikwiramakomo  , Webster Gumindoga  , Munyaradzi Davis Shekede  , Tawanda Winmore Gara  , Talent Chuma
Published: October 2021

Floods are among the natural hazards that have adverse effects on human lives, livelihoods, economies and infrastructure. Dry climates of southern Africa have, over the years, experienced an increase in the frequency of tropical cyclone induced floods. However, understanding the key factors that influence susceptibility to floods has remained largely unexplored in these dry climates. Therefore, this study sought to model flood hazards and determine key factors that significantly explain the probability of flood occurrence in the southern parts of Beitbridge District, Zimbabwe. To achieve these objectives, logistic regression was used to predict spatial variations in flood hazards following cyclone Dineo in 2017. Before spatial prediction of flood hazard, environmental variables were tested for multicollinearity using the Pearson correlation coefficient. Only two environmental variables, i.e., elevation and rainfall, were not significantly correlated and were thus used in the subsequent flood hazard modelling. Results demonstrate that two variables significantly (p < 0.05) predicted spatial variations in flood hazard in the southern parts of the Beitbridge District with relatively high accuracy defined by the area under the curve (AUC = 0.98). In addition, results indicate that ~56 % of the study area is regarded as highly susceptible to floods. Given the projected increase in extreme events such as intense rainfall as a result of climate change, floods will be expected to correspondingly increase in these semi-arid regions. Results presented in this study underscore the importance of geospatial techniques in flood-hazard modelling, which is the key input in sustainable land-use planning. It can thus be concluded that spatial analytical techniques play a key role in flood early warning systems aimed at supporting and building resilient communities in the face of climate change–induced floods.
O acesso à água e saneamento na promoção do desenvolvimento humano
Authors: Penteado Talita Bozon , Branchi Bruna Angela
Published: October 2021

A discussão sobre a provisão dos serviços de água e saneamento é de suma importância para entender o caráter multidimensional das desigualdades brasileiras. Estes serviços possuem uma ligação direta com a qualidade de vida e bem-estar da população. Ao serem reconhecidos como direito humano há uma mais clara intersecção com as esferas sociais. Neste artigo, por intermédio de uma pesquisa descritiva e exploratória, e da análise qualitativa dos dados disponíveis de água e saneamento, buscou-se entender a evolução e as precariedades persistentes no país, além de agregar um paralelo com o Índice de Desenvolvimento Humano (IDH). Nas últimas duas décadas houve um aumento da proporção de domicílios brasileiros com os serviços de água e esgotamento sanitário, mesmo que este último continue apresentando o maior déficit, mas continuam presentes relevantes diferenças regionais. Emblemático é o caso das regiões Norte e Nordeste que embora tenham registrado progressos não foram suficientes para alcançar os níveis de regiões mais desenvolvidas, como o Sudeste.  Cruzando as informações sobre o IDH e os indicadores de acesso a estes serviços foi possível melhorar a descrição das desigualdades na qualidade de vida e identificar quais estados brasileiros necessitam melhorar os indicadores de abastecimento de água e esgoto, visando aprimorar o bem-estar da população.
Análise das condições de inundação na Bacia do Rio Roncador, Duque de Caxias – RJ
Authors: Costa Mariana Dias Correia da , Fonseca Jorge Nassar Fleury da , Silva Junior Augusto Cesar Franco da
Published: October 2021

O objetivo deste estudo é analisar a Bacia Hidrográfica do Rio Roncador, localizada no 3º distrito de Duque de Caxias, a partir de diferentes aspectos associados à inundação, sendo eles: histórico de intervenções no Rio Roncador, eventos recentes de inundação, a relação entre as áreas de alta suscetibilidade a inundações, a área urbana e indicadores populacionais, e por fim, as condições socioambientais das margens do rio. A metodologia foi realizada a partir da revisão de literatura sobre o tema, análise espacial da área de estudo com base em diferentes fontes de dados, além de visitas prévias em campo. A elaboração dos mapas se deu com o uso do software QGIS. Os resultados indicam que a Bacia apresenta diferentes contextos socioambientais que potencializam os efeitos da inundação.  Por ainda não possuir uma urbanização muito consolidada, a bacia apresenta possibilidades de elaboração e implementação de um plano adequado de ocupação e gestão territorial.
The Experimental Study of the Kinetics
of the Cyclic Adsorption Process of Air Enrichment with Oxygen
Authors: Akulinin E. I. , Dvoretsky D. S. , Dvoretsky S. I.
Published: October 2021

For mass transfer cyclic processes in the “adsorptive - porous adsorbent” system when air is enriched with oxygen by the method of short-cycle heatless adsorption, a new method has been implemented for determining the coefficients of mass transfer and mass conductivity of processes in systems with a solid phase from kinetic curves. It has been experimentally proved that during the adsorption separation of atmospheric air, the rate of cyclic “adsorption - desorption” processes can be limited by both internal and external diffusion resistance. The mass conductivity coefficients are determined depending on the mass content of the distributed adsorptive (O2, N2) by a method that does not require the implementation of the intradiffusion kinetic regime. The analysis of the kinetics of the process of air enrichment with oxygen is carried out; the coefficients of mass transfer and mass conductivity, which can be used in kinetic calculations and numerical study of the properties and modes of the cyclic adsorption process of atmospheric air separation and oxygen concentration, are determined.
Immuno-correlative light and electron microscopy (iCLEM) using TEM v1
Authors: Oorschot Viola
Published: October 2021

Immuno- correlative light and electron microscopy (iCLEM) combines ultrastructural information obtained from high resolution electron microscopy with the use of genetically encoded or cytochemical markers. Immuno-CLEM takes advantage of the antigenicity preserved by Tokuyasu sample preparation to identify, quantify and characterise heterogeneous cell populations in small organisms, organs and tissue of healthy and diseased states. iCLEM can be used in combination with scanning EM (SEM), scanning TEM (STEM), and transmission EM (TEM). These protocols are well-suited, for example, for investigating neural stem and progenitor cell populations of the vertebrate nerve system and are available as separate protocols on protocol.io. Here, a method for iCLEM-TEM is described using an adult zebrafish telencephalon brain as a model. This organ is small in size allowing the complete dorsal telencephalic niche to be visualised in sections, and has diverse cell profiles and regenerative potential of local neural stem and progenitor cells. iCLEM-TEM provides high resolution ultrastructural detail of cells, and consecutive ultrathin (62-70 nm) tissue sections can be examined using different labelling techniques involving the use of immunofluorescent and immunogold markers.
Immuno-correlative light and electron microscopy (iCLEM) using STEM v1
Authors: Oorschot Viola , C Danne Jillian , Lindsey Benjamin , Kaslin Jan , Ramm Georg
Published: October 2021

Immuno- correlative light and electron microscopy (iCLEM) combines ultrastructural information obtained from high resolution electron microscopy and the use of genetically encoded or cytochemical markers. Immuno-CLEM takes advantage of the antigenicity preserved by Tokuyasu sample preparation to identify, quantify and characterise heterogeneous cell populations in small organisms, organs and tissue of healthy and diseased states. iCLEM can be used in combination with scanning EM (SEM), scanning TEM (STEM), and transmission EM (TEM). These protocols are well-suited, for example, for investigating neural stem and progenitor cell populations of the vertebrate nerve system and are available as separate protocols on protocol.io. Here, a method for iCLEM-STEM is described using an adult zebrafish telencephalon brain as a model. This organ is small in size allowing the complete dorsal telencephalic niche to be visualised in sections, and has diverse cell profiles and regenerative potential of local neural stem and progenitor cells. iCLEM-STEM involves the examination of ultrathin tissue sections (62-70 nm) using immunofluorescence labelling and subsequent SEM imaging to obtain a high resolution overview of these sections with greater morphological detail compared to iCLEM-SEM. This protocol should be of particular interest to EM facilities with SEM, but not TEM access.
Quantitative Assessment of the Development of Micromycete Colony on the Surfaces of Polymers and Polymer Composites
Authors: Isaev E.A. , Doronin F.A. , Evdokimov A.G. , Pervukhin D.V. , Rudyak Yu.V. , Rytikov G.O. , Kornilov V.V. , Nazarov V.G.
Published: October 2021

The need to ensure the possibility of widespread use of electronic and mobile health-saving technologies requires not only the formation of an appropriate information technology infrastructure and the development of effective algorithms for processing a large amount of personal information. Development of medical devices for recording physiological processes also involves the creation of innovative biologically compatible materials that allow sensors and medical sensors to work continuously in 24/7 mode. Taking into account the long-term positive experience of using large-capacity thermoplastics and elastomers in medical equipment, it seems promising to use the corresponding polymers as the main materials of wearable electronics for medical purposes. At the same time, to ensure the biological compatibility of the materials under discussion, it is necessary to minimize the possibility of the development of pathogenic microorganisms on surfaces in contact with living tissues. This type of pathogenic organisms (pathogens of a number of dangerous diseases – mycoses) includes some types of microscopic fungi - micromycetes (in particular, Aspergillus niger van Tiegem; Aspergillus terreus Thom; Penicillium cycopium Westling). The article examines the effect of surface modification by gas-phase fluorination on the nature and degree of development of a mixed colony of micromycetes on the surfaces of experimental samples made of several types of thermoplastics (polyvinyl chloride, polypropylene, low-density polyethylene, polyethylene terephthalate) and elastomers (butyl- and butadiene-nitrile rubbers, as well as ethylene, propylene and dicyclopentadiene copolymers). The nature and degree of development of colonies are quantitatively described using the original methodology developed earlier. The effect of fluorination on the nanotexture and chemical composition of the surface and near-surface layers of experimental samples was demonstrated using scanning electron microscopy (SEM) and IR Fourier spectroscopy (IRFS). The dynamics and efficiency of fluorination are described using a linearized hyperbolic model, the parameters of which are set by the least squares method.
The Role of Emerging Predictive IT Tools in Effective Migration Governance
Authors: Blasi Casagran Cristina , Boland Colleen , Sánchez-Montijano Elena , Vilà Sanchez Eva
Published: October 2021

Predicting mass migration is one of the main challenges for policymakers and NGOs working with migrants worldwide. Recently there has been a considerable increase in the use of computational techniques to predict migration flows, and advances have allowed for application of improved algorithms in the field. However, given the rapid pace of technological development facilitating these new predictive tools and methods for migration, it is important to address the extent to which such instruments and techniques engage with and impact migration governance. This study provides an in-depth examination of selected existing predictive tools in the migration field and their impact on the governance of migratory flows. It focuses on a comparative qualitative examination of these tools’ scope, as well as how these characteristics link to their respective underlying migration theory, research question, or objective. It overviews how several organisations have developed tools to predict short- or longer-term migration patterns, or to assess and estimate migration uncertainties. At the same time, it demonstrates how and why these instruments continue to face limitations that in turn affect migration management, especially as it relates to increasing EU institutional and stakeholder efforts to forecast or predict mixed migration. The main predictive migration tools in use today cover different scopes and uses, and as such are equally valid in shaping the requirements for a future, fully comprehensive predictive migration tool. This article provides clarity on the requirements and features for such a tool and draws conclusions as to the risks and opportunities any such tool could present for the future of EU migration governance.
Migration in Spain: The Role of Cultural Diversity Revisited
Authors: Alguacil Maite , Alamá-Sabater Luisa
Published: October 2021

In this article, we analyze to what extent cultural diversity brought about by immigrants affects economic activity of the Spanish provinces. To do that, we use panel data techniques that treat cultural diversity as an endogenous variable and account for spatial linkages. The dual nature of immigrants in Spain, that is, working and retired migration, is also considered in our regressions. The outcomes reveal that greater cultural diversity stimulates the economic activity of the Spanish provinces, these gains being reinforced in the case of labor-active migrant and for richer provinces. Our results are robust to diverse specifications, estimation methods, and samples.
First Evidence of Pleistocene Archaeology on the Neyshabur Plain and its Role in Reconstructing the Dispersal of Hominins on the Northeastern Iranian Plateau
Authors: Sadraei A. , Garazhian O. , Sabori H.
Published: October 2021

The northeastern Iranian Plateau is considered a leading region in Paleolithic studies. The history of Paleolithic research in this region dates back to the mid-20th century. However, unlike the western and, to some extent, the central part of the Iranian Plateau, only a handful of sites have been identifi ed in the northeastern part. Field studies conducted on the Neyshabur plain have provided some of the only Paleolithic evidence at four locations in the foothills of the Binalud Mountains: Dar Behesht, Mushan Tappeh, Ali Abad, and Qezel Tappeh. Our research aims to assess this evidence, provide a revised typology of Pleistocene artifacts from the Neyshabur plain, and also study the role of these and other fi nds in the area and analyze their signifi cance in terms of the dispersal of Pleistocene hominin populations. We propose two main corridors on the northeastern Iranian Plateau assumed to have been infl uential in the dispersal of human ancestors.
Results of Radiocarbon Dating of Early Burials in the Firsovo Archaeological Area, Barnaul Stretch of the Ob
Authors: Kiryushin K. Y. , Kiryushin Y. F. , Solodovnikov K. N. , Frolov Y. V. , Schmidt A. V.
Published: October 2021

An especially noteworthy part of the Firsovo archaeological area is a group of early burials at the fl at-grave cemeteries Novoaltaisk-Razvilka, Firsovo XI, and Firsovo XIV. Nine radiocarbon dates have been generated for those cemeteries at various laboratories: two by the liquid-scintillation (LSC) method and seven using the accelerator mass spectrometry (AMS) method. The dates were calibrated using OxCal version 3.10 software. Dates for the Chalcolithic Bolshoy Mys culture burials at Novoaltaisk-Razvilka and Tuzovskiye Bugry-1 burial 7 match the previously suggested ones (around 3000 BC). Certain Neolithic burials in the Altai differ from others in the position of the bodies (fl exed on the side). They were dated to the late 5th to the early 4th millennia BC by the AMS method. Burials belonging to the “cultural core” of Firsovo XI, then, fall within the Early Neolithic (68 % interval, 5710–5460 BC; 95 % interval, 5740–5360 BC). The date 9106 ± 80 BP (GV-02889), obtained for Firsovo XI burial 18, may be somewhat accurate, pointing to the Final Mesolithic or Early Neolithic. Both the date and the cultural characteristics of this burial (sitting position, abundant ocher) are accompanied by the craniometric distinctness of the male cranium (huge total size).
LSSTC AGN Data Challenge 2021
Authors: Yu Weixiang , Richards Gordon T.
Published: October 2021

We provide a code and data repository that can be used to facilitate planning for AGN science with the upcoming Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST). For this purpose, we have produced a common exploratory dataset that can be used to develop tools for parameterization of AGN light curves, AGN selection, and AGN photometric redshifts
Diseño de rip-rap para un terraplén de acceso al túnel sierra de Marquesado (San Juan, Argentina)
Authors: Cordo Oscar Víctor
Published: October 2021

This paper addresses rip-rap design to protect the Sierra de Marquesado Tunnel west access embankment.  This tunnel will cross the Sierra de Marquesado, which will allow a quick and direct vehicular link between the Tulum and Zonda valleys, west of San Juan city, in Argentina.
Sverdrup, Munk, and Bretscheider's theory was used, aimed at determining the height and period of the wave and its function regarding fetch and wind speed. Hudson's theory was employed to define rip-rap maximum size to place as means of protecting embankments. The article considers two main sections, the first one in which the size of the rip-rap placed in the existing lateral Ullum dam is verified. Also, the second section labels the rip-rap design to protect the new proposed access embankment. Finally, using Terzaghi's filter laws, the filter material is designed to be placed between the embankment and the rip-rap.
Evaluación superficial de pavimentos rígidos en carreteras mediante ortoimágenes obtenidas mediante un vehículo aéreo no tripulado
Authors: Pucha Aguinsaca Pablo Andrés , Zárate Torres Belizario Amador
Published: October 2021

This research explores an alternative method of surface evaluation of road pavement, which consists of automating the collection, processing, and analysis of the state of the pavement using an unmanned aerial vehicle (UAV). The objective of this research is to evaluate the surface condition of the rigid pavement of a section of intramountainous road, using orthoimages obtained by UAV and the methodology of the pavement condition index. This is a nonexperimental quantitative and cross-research design. Hence, the precision obtained with the adjustment of the UAV images from the processing phase is accurate to the established tolerances for this type of work. They are below 0.03 meters, the committed error between the measure from the field, and the one from orthophoto is below the RMSE, and the adjustment made with the algorithm SfM. Thus, the measured distances and the condition of the pavement are reliable. It is concluded that the use of the UAV technique is adequate to detect and measure deterioration on the road surface and to obtain detailed and precise information on its condition.
Evaluación multicriterio aplicada al análisis de movimientos en masa en carreteras de montaña: un caso de estudio en los Andes del sur del Ecuador
Authors: Oñate-Valdivieso Fernando , Álvaez Marco , Esparza Carmen , Oñate-Paladines Arianna
Published: October 2021

Mass movements are responsible for large human and material losses. The main action for the prevention of hillside movements is the creation of susceptibility maps, which can be carried out quickly and economically through the application of multi-criteria evaluation techniques. These are based on the identification of conditioning and triggers factors that cause the instability of the slopes, which are weighted according to their influence for the occurrence of the phenomenon under study. In the present work, multi-criteria evaluation techniques were applied to define the susceptibility to landslides in a mountainous road located in the south of Ecuador. Variables that have a direct influence on the occurrence of mass movements were selected and related to different events observed in the field to define a thematic categorization of each variable and to determine weighting factors. Susceptibility was defined by linear weighting. Medium and high levels of susceptibility were identified in the road understudy with the presence of rotational and translational landslides.
Evaluación del modelo digital de terreno obtenido mediante técnicas de fotogrametría con VANT y con técnicas GNSS aplicados a proyectos viales en zonas de mediana vegetación
Authors: Lalangui Jaramillo Yandri Jose , Zárate Torres Belizario Amador
Published: October 2021

The objective of this research was to obtain a digital surface model on mountain roads using an unmanned aerial vehicle. The research is quantitative. The study area was planned, where there is a presence of medium vegetation. The results were obtained with the unmanned aerial vehicle at a height of 100m, taking images with an approximate period of 2s. The processing was done with the help of software that is based on the Software rom Motion approach, which allows several photographs to be captured in a digital terrain model. Fulfilling the objective of this research, the digital terrain model was obtained using photogrammetry techniques and the results were compared with the digital terrain model derived from the Differential GPS technique. Thus, the digital models are similar, with a variation where the vegetation is dense. The obtained models will serve to reduce the margin between these two types of surveys and in this way obtain topographic surveys  promptly and without cost to the environment.
Análisis de metodologías para formación de conductores inexpertos en percepción del peligro: carreteras de montaña
Authors: Segarra María Soledad , Conza Conza Demiss Emanuel , Zapata Bravo Maribel Zenaida , Arévalo Maldonado Diego Fernando
Published: October 2021

This article presents the application of three methodologies that seek to improve the hazard perception by inexperienced drivers on mountain roads. The methodologies apply training through feedback based on photographs, short videos, and simulation of real tours. The scenarios of the three methodologies were first evaluated with the iRAP methodology and these results were compared with the hazard perception perceived by inexperienced drivers. The iRAP methodology rates roads from 1 to 5 stars with 1 being the most hazardous and 5 being the safest. The three training groups underwent an initial evaluation, then a feedback training process, and finally a final evaluation. The photo application improved the hazard perception on safer roads (3 to 4 stars). Through videos, women reacted better to training in the perception of danger on more dangerous roads (1 to 2 stars). When applying simulation of real routes, no improvements were obtained in the hazard perception. It can be concluded that the application of photographs and videos are valid, but it is necessary to reinforce the training of inexperienced drivers to identify elements that instigate hazard on mountain roads.
Especies forestales con alto potencial para la recuperación hídrica: identificación de especies nativas de la cuenca Buturama en Aguachica (Cesar, Colombia). Fase I
Authors: Saldaña Escorcia Rossember , Otalvarez Herrera Rosana , Ramos Angarita José Luis
Published: October 2021

Recognize the forest species with high potential in the recovery of areas surrounding the watersheds in order to make a preliminary evaluation of these species that could be used in assisted natural regeneration processes. During the development of the process, a descriptive-exploratory type of research was used, which allowed the analysis and characterization of the forest varieties in the tropical dry forest relicts. The families Anacardiaceae, Fabaceae and Moraceae, and species Anacardium excelsum, Ficus sp, Juglans neotropica and Bursera simaruba were found in greater presence, this classification was of vital importance at the moment of selecting the specimens to work with. The inspection of the study area corroborated and confirmed the high presence of Anacardium excelsum and Ficus sp, species that will be used in the second phase to corroborate whether they have the potential for water recovery of great importance in the region because it will provide vital liquid for longer, also took into account the marketing of illegal timber in the area to avoid making mistakes and create socio-environmental conflicts that could aggravate the problem.
Describing Aerosol and Assessing Health Effects in Lima, Peru
Authors: Sánchez-Ccoyllo Odón R. , Ordoñez-Aquino Carol Geimy , Arratea-Morán Jessica , Marín-Huachaca Nélida S. , Reátegui-Romero Warren
Published: October 2021

The current study aims to discover the chemical-morphological characteristics of PM10 through the analysis of Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) and Scanning Electron Microscopy (SEM), respectively, in the Metropolitan Area of Lima (MEAL) in the period from January 04 to 18, 2019. The study also aims to analyze the aerosol optical depth (AOD) in the period from January 1, 2014 to October 15, 2020. The effect of the PM2.5 concentrations on health in 2016 has also been quantified. The results indicate that the daily PM10 value of 50 μg/m3 recommended by the World Health Organization was exceeded on 75% of the monitored days. The morphological analysis of PM10 demonstrated the presence of particles of anthropogenic and geogenic origin. Particles from building activities and secondary aerosol formation were found, as well as particles associated with the resuspension of soil and marine aerosols. In 2016, 718, 1426, and 4295 cases of all-cause mortality, on average, could have been avoided in the MEAL if the annual average of PM2.5 would have decreased from 26.53 μg/m3 to 23.88 μg/m3, 21.22 μg/m3, or 10 μg/m3, respectively. In 2016, 1.58%, 3.14% and 9.47% of all causes are respectively attributed to fine aerosol (PM2.5) over 23.88 μg/m3, 21.22 μg/m3, and 10 μg/m3. Policy makers to legally reduce the PM2.5 concentrations in the MEAL could use this result.
Analysis and Prediction of Meteorological Drought Area by Using Standardized Precipitation Index in Northeast, Thailand
Authors:   the Department of Geography, Faculty of Education, Ramkhamhaeng University, Bangkok, Thailand, Kornkosa Sirimanee , Phumkokrux Nutthakarn , Pattanasak Patiya , Manajitprasert Supaporn
Published: October 2021

The objectives of this work are: 1) to monitor the trend of rainfall data in in-season rice field period of Thailand (April to August). 2) to analyze meteorological drought by Standardized Precipitation Index : SPI in Northeast Thailand in in-season rice field period of Thailand and 3) to predict the rainfall data in in-season rice field period of Thailand of 2021. The average monthly rainfall data in April to August of 1990 – 2020 were gathered from 31 meteorological stations covered Northeast area of Thailand by Meteorological Department of Thailand. The data were used to draw trend of monthly average rainfall to track a change of rainfall in the period. Then, these were used to create distribution of meteorological drought characteristics maps under SPI criteria. Moreover, Single Moving Average model is used to predict the rainfall data with the lowest MAPE at 11.13 percentage. The results show that the higher meteorological drought risk area was always found in south-west side of the region in June to August. Moreover, average monthly rainfall increases from April and hit the peak in July and August. The trend of total monthly rainfall in in-season rice field period fluctuates along the study period with average value at 977.98 millimeters and its trend tends to be decreased at 0.1052 millimeters per year.
Risk factors for surgical site infections after caesarean section at Yaounde, Cameroon
Authors: Tebeu Pierre M. , Kamdem Aurelien , Ngou-Mve-Ngou Jean P. , Meka Esther , Antaon Jesse S. S. , Loic Meukem Tegue , Fouedjio Jeanne
Published: October 2021

Background: Surgical site infection is the invasion by microorganisms of the tissue layers affected by the surgical procedure. Maternal morbidity from infections has been shown to be higher after caesarean section compared to the vaginal delivery. Objective of the research was to analyze the risk factors associated with surgical site infections after caesarean section.Methods: This was a cross sectional (affected/non affected) study approved by the institutional committee for ethics and research of the faculty of medicine and biomedical sciences. A total of 310 medical files were assessed, 62 files from patients with surgical site infections and 248 files from patients without any complications. The data was collected using a pretested questionnaire and analyzed using the statistical package for the social sciences (SPSS) software version 22.0. The Chi squared and the Fisher exact tests were used to assess homogeneity between the 2 groups. Odd ratio 95% confidence interval was used to assess the association between the variables.Results: The proportion of surgical site infections during the study was 1.81%. Factors associated with surgical site infections were premature rupture of membranes (OR: 2.065; 95% CI 1.051-4.05; p=0.035); the vertical midline incision (OR=5.26; 95% CI; 1.41-19.57; p=0.013) and a operation by a resident physician doctor (OR=1.98; 95% CI 1.09-3.59; p=0.02).Conclusions: A factors associated with surgical site infections after caesarean section are a premature rupture of membranes, vertical midline incision and the qualification of the practitioner.
Uterine artery Doppler analysis at 11-14 weeks as a predictor of intra-uterine growth restriction
Authors: Gupta Uttara , Agrawal Usha
Published: October 2021

Background: Successful pregnancy results from reciprocity between placental and maternal cardiovascular system. Intra-uterine growth restriction (IUGR) is a condition which arises from insufficiency of placenta and can be seen as variations in waveforms in uterine artery (UtA). In our study, we studied, whether predictive accuracy of various UtA Doppler indices for IUGR in first trimester early enough to provide an intervention for prevention of IUGR, as it was a leading cause of neonatal morbidity and mortality.Methods: The study design was a prospective observational study. UtA Doppler was done at 11-14 weeks in 120 pregnancies attending the outpatient and inpatient department of obstetrics and gynaecology, PCMS, Bhopal. The left and right UtA velocity waveforms were studied. Mean pulsatility index (PI), mean resistive index (RI) and diastolic notch were noted. Results obtained were analyzed and tabulated.Results: Amongst these, 25.86% developed IUGR. First trimester UtA mean RI and PI were remarkably elevated in patients who developed IUGR on follow up. No relationship was noted between diastolic notch and IUGR. Mean RI and PI were found to be good predictors of IUGR. Using receiver operating characteristics (ROC) curve, the best cut-off of mean RI and mean PI to detect IUGR was 0.68 and 1.56 respectively.Conclusions: UtA Doppler at 11-14 weeks of gestation recognizes a huge proportion of women who will develop IUGR.
Impact of COVID 19 in antenatal patient with gestational diabetes mellitus and vice a versa: a retrospective study
Authors: Singh Sapna , Tyagi Preeti , Gupta Rashmi , Anand Deepak , Yadav Sandhya
Published: October 2021

Background: The objective of this study is to compare the incidence, severity and feto-maternal outcome of antenatal Coronavirus disease 2019 (COVID-19) positive patients with GDM vs non GDM patients.Methods: This is a retrospective observational study. The study was carried out in department of Obstetrics and Gynecology, GSVM Medical College, Kanpur from March 2020 to December 2020. All the antenatal women with COVID 19 positive status who were admitted during this period were enrolled in the study. Analysis were made on the basis of observation regarding the severity of symptoms COVID 19 disease, oxygen requirements, mode of delivery and neonatal outcome in GDM vs non GDM COVID positive antenatal patient.Results: A total of 421 COVID positive antenatal patients were enrolled of which 21 patients were having GDM and 400 were non GDM. Of these 21 patients, 14 (66.7%) were diagnosed with GDM after admission while 7 patients i.e., 33.3% were already diagnosed GDM before admission in current pregnancy. Of these 21 (42.9%) antenatal COVID pt with GDM majority shows mild symptoms of COVID 19, however the severity of fever, myalgia and cough was increased in GDM compared to Non GDM Group. While in non GDM Group, majority of patients were asymptomatic (44.3%) and severity was also less.Conclusions: It is also evident that patients with GDM had longer duration of hospital stay, higher incidence of caesarean delivery and oxygen requirements.
Study of pregnancy with disseminated intravascular coagulation
Authors: Kadikar Satishchandra K. , Divan Farheenbanu J. , Topiwala Usmaan , Agasiwala Saliha
Published: October 2021

Background: At present time, obstetric bleeding remains to be the world’s main cause of maternal mortality, early identification of factors leading to haemorrhage and early management of underlying pathological process is the key stone of the treatment. The most important pregnancy related condition leading to bleeding with high maternal mortality and morbidity rate is disseminated intravascular coagulation (DIC).Methods: A prospective study of 50 cases of pregnancy with DIC was performed from May 2018 to November 2020 in our institute to detect the various aetiology and complications associated with DIC leading to maternal mortality and morbidity and study perinatal outcome in pregnant women with DIC.Results: The prevalence of DIC in our institute is 0.22%. Common causes of DIC were abruption (36%), haemorrhage (34%), preeclampsia (18%), sepsis (6%) and acute hepatic failure (6%). The composite severe maternal morbidity outcome in haemorrhage (100%), abruption (63%), preeclampsia (58%), and AVH (33%).Out of the three most common causes (abruption, haemorrhage and preeclampsia), the composite maternal morbidity outcome was significantly more in women with haemorrhage than with abruption and preeclampsia.Conclusions: DIC, as a marker of severe obstetrical complications, is associated with high levels of mortality and morbidity. Recognition of the antecedent causes and early investigation for and active management of DIC may help lower this morbidity.
A case of thoraco-omphalopagus conjoined twins with intrauterine death
Authors: Khanam Rosy , Choudhury Shabir Ahmed
Published: October 2021

Conjoined twins or Siamese twins are identical twins that are joined in utero. The original Siamese twins were born in Siam (now Thailand) in 1811. They were males and lived for about 62 years. Incidence being 1 in 49,000 births to 1 in 1,89,000 births, this phenomenon is very rare. Approximate half are stillborn and one- third die within 24 hours of birth. Five types of conjoint twins are classically described, thoracopagus, omphalopagus, pygopagus, ischiopagus and craniopagus. With a reported incidence of 74-75% of all conjoint twins, Thoracopagus is the most common type. Omphalopagus with an incidence of 0.5% is the least common. Here we are reporting a case of thoraco-omphalopagus twin pregnancy with intra uterine death delivered by hysterotomy.