bluuebunny/crossref_metadata_2025 huggingface dataset:
Wetlands Management in Northern Greece: An Empirical Survey
Authors: Zafeiriou Eleni , Andrea Veronika , Tampakis Stilianos , Karanikola Paraskevi
Published: November 2020

Water management projects have an important role in regional environmental protection and socio-economic development. Environmental policies, strategies, and special measures are designed in order to balance the use and non-use values arising for the local communities. The region of Serres in Northern Greece hosts two wetland management projects—the artificial Lake Kerkini and the re-arrangement of Strymonas River. The case study aims to investigate the residents’ views and attitudes regarding these two water resources management projects, which significantly affect their socio-economic performance and produce several environmental impacts for the broader area. Simple random sampling was used and, by the application of reality and factor analyses along with the logit model support, significant insights were retrieved. The findings revealed that gender, age, education level, and marital status affect the residents’ perceived values for both projects and their contribution to local growth and could be utilized in policy making for the better organization of wetland management.
An Integrated GIS-Hydro Modeling Methodology for Surface Runoff Exploitation via Small-Scale Reservoirs
Authors: Kalogeropoulos Kleomenis , Stathopoulos Nikolaos , Psarogiannis Athanasios , Pissias Evangelos , Louka Panagiota , Petropoulos George P. , Chalkias Christos
Published: November 2020

Efficient and sustainable exploitation of water resources requires the adoption of innovative and contemporary management techniques, a need that becomes even more demanding due to climate change and increasing pressures coming from anthropogenic activities. An important outcome of this reality is the qualitative and quantitative degradation of groundwater, which clearly indicates the need to exploit surface runoff. This study presents an integrated Geographic Information System (GIS)-based methodological framework for revealing and selecting suitable locations to build small-scale reservoirs and exploit surface runoff. In this framework, the SWAT model was used to quantify surface runoff, followed by the simulation of reservoir scenarios through reservoir simulation software. Andros Island (located in Cyclades Prefecture), Greece was selected as the study area. The obtained results indicated the most suitable location for creating a reservoir for maximizing exploitation of surface runoff, based on the specific water demands of the nearby areas and the existing meteorological, hydrological, and geological background potential. Thus, two selected dam locations are analyzed by using the proposed framework. The findings showed that the first dam site is inappropriate for creating a reservoir, as it cannot meet the demand for large water extraction volumes. In addition, the outcomes confirmed the efficiency of the proposed methodology in optimum selection of locations to construct small-scale water exploitation works. This research presents a contemporary methodological framework that highlights the capability of GIS, SWAT modeling, and reservoir simulation coupling in detecting optimal locations for constructing small reservoirs.
Investigation on the Water Flow Evolution in a Filled Fracture under Seepage-Induced Erosion
Authors: Shao Jianli , Zhang Qi , Wu Xintao , Lei Yu , Wu Xunan , Wang Zaiyong
Published: November 2020

Water inrush is a major geological hazard for safe mining and tunnel construction. For the water inrush channel containing mud, sand, and other sediments, it is difficult to predict the change of permeability and water surge, which makes disaster prevention difficult. As a typical water inrush channel, a filled fracture under seepage-induced erosion needs to be focused. In this work, a numerical model for the evolution of flow in a filled fracture under seepage-induced erosion was established, which included the seepage velocity, hydraulic erosion, and permeability of the filling medium. The effects of joint roughness coefficient (JRC) and homogeneity of the filling medium on the seepage evolution are discussed. The results showed that the fracture seepage properties experienced a non-linear change process, and the evolution can be divided into three phases: the slowly varying phase, the rapidly varying phase, and the stable phase. The increase of the JRC hindered the development in flow velocity and erosion. Compared with low homogeneous filling medium, pores in the high homogeneous filling medium were easier to expand and connect, and the seepage characteristics evolved faster. The model established in this study will help to understand the seepage evolution of filled fractures, and can be used to predict the permeability of filled fractures in engineering geology.
A WCSPH Particle Shifting Strategy for Simulating Violent Free Surface Flows
Authors: Krimi Abdelkader , Jandaghian Mojtaba , Shakibaeinia Ahmad
Published: November 2020

In this work, we develop an enhanced particle shifting strategy in the framework of weakly compressible δ+-SPH method. This technique can be considered as an extension of the so-called improved particle shifting technology (IPST) proposed by Wang et al. (2019). We introduce a new parameter named “ϕ” to the particle shifting formulation, on the one hand to reduce the effect of truncated kernel support on the formulation near the free surface region, on the other hand, to deal with the problem of poor estimation of free surface particles. We define a simple criterion based on the estimation of particle concentration to limit the error’s accumulation in time caused by the shifting in order to achieve a long time violent free surface flows simulation. We propose also an efficient and simple concept for free surface particles detection. A validation of accuracy, stability and consistency of the presented model was shown via several challenging benchmarks.
A Livelihood Resilience Measurement Framework for Dam-Induced Displacement and Resettlement
Authors: Gong Yichun , Zhang Ruilian , Yao Kaiwen , Liu Bingwen , Wang Feilong
Published: November 2020

The concepts of resilience and livelihood resilience are growing in prominence with water resource development that aims to measure and build resilience to specific disturbances and shocks. However, practical frameworks to measure livelihood resilience are needed, not just a theoretical framework. In this paper, we introduce the livelihood resilience measurement (LRM) framework, which draws on Hooke’s law; use the state vector method to calculate livelihood resilience scores; and test the effectiveness of the method by correlation analysis. We illustrate the framework by using it to measure livelihood resilience in Henan Province, China, and assess the strategies that build livelihood resilience. The advantages and limitations of the framework are explored and discussed by drawing on empirical examples. Besides illustrating how to apply the LRM framework in a practical case, we discuss how to communicate with stakeholders to identify and strengthen the factors that build resilience. In this study, land ownership, housing and property value, and emergency cost are the most significant of these factors. Thus, the LRM framework has the potential to help reservoir-affected families protect their livelihood capital and to help governments improve social welfare. It can thus serve as a tool for monitoring and improving the effectiveness of policies and practices aimed at building livelihood resilience.
How Elevated CO2 Shifts Root Water Uptake Pattern of Crop? Lessons from Climate Chamber Experiments and Isotopic Tracing Technique
Authors: Ma Ying , Wu Yali , Song Xianfang
Published: November 2020

Root water uptake plays an important role in water transport and carbon cycle among Groundwater–Soil–Plant–Atmosphere–Continuum. The acclimation of crops under elevated carbon dioxide concentrations (eCO2) depends greatly on their capability to exploit soil water resources. Quantifying root water uptake and its relationship with crop growth under eCO2 remains challenging. This study observed maize growth subjected to current CO2 (400 ppm) and eCO2 (700 ppm) treatments via a device combined with a climate chamber and weighing lysimeters. Root water uptake patterns were determined based on the isotopic tracing technique. The main water uptake depth shifted from 0−20 cm under current treatment to 20−40 cm under eCO2 at the seedling growth stage. Maize took up 22.7% and 15.4% more soil water from a main uptake depth of 40−80 cm at jointing and tasseling stages in response to eCO2, respectively. More soil water (8.0%) was absorbed from the 80−140 cm layer at the filling stage under eCO2. Soil water contributions at the main uptake depth during seedling stage were negatively associated with leaf transpiration rate (Tr), net photosynthetic rate (Pn), and leaf area index (LAI) under both treatments, whereas significant positive correlations in the 40−80 cm layer under current treatment shifted to the 80−140 cm layer by eCO2. Deep soil water benefited to improve Tr, Pn and LAI under both treatments. No significant correlation between soil water contributions in each layer and leaf water use efficiency was induced by eCO2. This study enhanced our knowledge of crop water use acclimation to future eCO2 and provides insights into agricultural water management.
Molecular Dynamics Simulation of the Interaction between Common Metal Ions and Humic Acids
Authors: Wu Xu , Xia Yu , Yuan Lianhua , Xia Kaiyu , Jiang Yu , Li Na , He Xuwen
Published: November 2020

Humic acids (HAs) have important environmental and geochemical effects on soil, water environments and sediment. HAs strongly complex some metal ions, which affects the migration of metal ions and the colloidal aggregation of HA. Here, the complexation of Ca2+ and Mg2+ with HA in aqueous solution under neutral conditions has been systematically studied by molecular dynamics (MD) simulation. The results show that the aggregation of HA is caused by the complexation of HA and metal ions, mainly due to the intermolecular bridging between Ca2+, Mg2+ and COO− groups. Monodentate and bidentate coordinations have been found between Ca2+ and COO− groups of different HA molecules in the same simulation system. Mg2+ only has a monodentate coordination with COO− group.
Trends and Non-Stationarity in Groundwater Level Changes in Rapidly Developing Indian Cities
Authors: Mohanavelu Aadhityaa , Kasiviswanathan K. S. , Mohanasundaram S. , Ilampooranan Idhayachandhiran , He Jianxun , Pingale Santosh M. , Soundharajan B.-S. , Diwan Mohaideen M. M.
Published: November 2020

In most of the Indian cities, around half of the urban water requirement is fulfilled by groundwater. Recently, seasonal urban droughts have been frequently witnessed globally, which adds more stress to groundwater systems. Excessive pumping and increasing demands in several Indian cities impose a high risk of running out of groundwater storage, which could potentially affect millions of lives in the future. In this paper, groundwater level changes have been comprehensively assessed for seven densely populated and rapidly growing secondary cities across India. Several statistical analyses were performed to detect the trends and non-stationarity in the groundwater level (GWL). Also, the influence of rainfall and land use/land cover changes (LULC) on the GWL was explored. The results suggest that overall, the groundwater level was found to vary between ±10 cm/year in the majority of the wells. Further, the non-stationarity analysis revealed a high impact of rainfall and LULC due to climate variability and anthropogenic activities respectively on the GWL change dynamics. Statistical correlation analysis showed evidence supporting that climate variability could potentially be a major component affecting the rainfall and groundwater recharge relationship. Additionally, from the LULC analysis, a decrease in the green cover area (R = 0.93) was found to have a higher correlation with decreasing groundwater level than that of urban area growth across seven rapidly developing cities.
Use of Seasonal Streamflow Forecasts for Flood Mitigation with Adaptive Reservoir Operation: A Case Study of the Chao Phraya River Basin, Thailand, in 2011
Authors: Kompor Wongnarin , Yoshikawa Sayaka , Kanae Shinjiro
Published: November 2020

Predicting streamflow can help water managers make policy decisions for individual river basins. In 2011, heavy rainfall from May until October resulted in the largest flood event in the history of Thailand. This event created difficulty for water managers, who lacked information to make predictions. Studies on the 2011 Thai flood have proposed alternative reservoir operations for flood mitigation. However, no study to date has used predictive information to determine how to control reservoirs and mitigate such extreme floods. Thus, the objective of this study is to update and develop a method for using streamflow predictive data to support adaptive reservoir operation with the aim of mitigating the 2011 flood. The study area was the Chao Phraya River Basin, one of the most important basins in Thailand. We obtained predictive information from a hydrological model with a reservoir operation module using an ensemble of seasonal precipitation data from the European Centre for Medium–Range Weather Forecasts (ECMWF). The six-month ECMWF prediction period was used to support the operation plan for mitigating flooding in 2011 around each reservoir during the wet season. Decision-making for reservoir operation based on seasonal predictions was conducted on a monthly time scale. The results showed that peak river discharge decreased slightly, by around 4%, when seasonal predictive data were used. Moreover, changing the reservoir operation plan and using seasonal predictions decreased the peak river discharge by around 20%.
Identifying the Influence of Land Cover and Human Population on Chlorophyll a Concentrations Using a Pseudo-Watershed Analytical Framework
Authors: Moslenko Luke , Blagrave Kevin , Filazzola Alessandro , Shuvo Arnab , Sharma Sapna
Published: November 2020

Increasing agricultural development and urbanization exacerbates the degradation of water quality in vulnerable freshwater systems around the world. Advances in remote sensing and greater availability of open-access data provides a valuable resource for monitoring water quality but harmonizing between databases remains a challenge. Here, we: (i) developed a pseudo-watershed analytical framework to associate freshwater lakes with adjacent land cover and human population data and (ii) applied the framework to quantify the relative influence of land cover and human population on primary production for 9313 lakes from 72 countries. We found that land cover and human population explained 30.2% of the variation in chlorophyll a concentrations worldwide. Chlorophyll a concentrations were highest in regions with higher agricultural activities and human populations. While anthropogenic land cover categories equated to only 4 of the 18 categories, they accounted for 41.5% of the relative explained variation. Applying our pseudo-watershed analytical framework allowed us to quantify the importance of land cover and human population on chlorophyll concentration for over 9000 lakes. However, this framework has broader applicability for any study or monitoring program that requires quantification of lake watersheds.
An Optimized and Scalable Algorithm for the Fast Convergence of Steady 1-D Open-Channel Flows
Authors: Goffin Louis , Dewals Benjamin , Erpicum Sebastien , Pirotton Michel , Archambeau Pierre
Published: November 2020

Calculating an open-channel steady flow is of main interest in many situations; this includes defining the initial conditions for the unsteady simulation or the computation of the water level for a given discharge. There are several applications that require a very short computation time in order to envisage a large number of runs, for example, uncertainty analysis or optimization. Here, an optimized algorithm was implemented for the fast and efficient computation of a 1-D steady flow. It merges several techniques: a pseudo-time version of the Saint-Venant equations, an evolutionary domain and the use of a non-linear Krylov accelerator. After validation of this new algorithm, we also showed that it performs well in scalability tests. The computation cost evolves linearly with the number of nodes. This was also corroborated when the execution time was compared to that obtained by the non-linear solver, CasADi. A real-world example using a 9.5 km stretch of river confirmed that the computation times were very short compared to a standard time-dependent computation.
Modeling the Matrix-Conduit Exchanges in Both the Epikarst and the Transmission Zone of Karst Systems
Authors: Dal Soglio Lucie , Danquigny Charles , Mazzilli Naomi , Emblanch Christophe , Massonnat Gérard
Published: November 2020

Usual conceptual models of karst hydrodynamics highlight the important role of unsaturated subsystems in recharge repartition. However, few of them have been compared with scarce suitable physically-based numerical models. Hybrid models that couple single continuum medium with discrete features promise an improved consideration of karst specificities. Here we evaluate their capability to properly reproduce interactions between a vertical conduit and the surrounding unsaturated matrix. We simulate the response of such a configuration to a single recharge event for various sets of parameters. We show the ability of hybrid models to reproduce the most significant behaviors described in the literature, i.e., transient storage and distribution of recharge, flow concentration towards conduits in the epikarst, and matrix-conduit exchanges varying in time and space. In addition to the explicit conduits, simulating variably saturated flows with the Richards equation and distinguishing the epikarst and the transmission zone are key elements to reproduce most processes. The contrasts between subsystems necessary to observe desired behaviors have been quantified. They are reinforced by the varying matrix saturation that causes realistic competition between matrix and explicit conduits. The study also highlights the need to deepen knowledge of the scaled medium properties we need to know to apply such models to actual cases.
Taking into Account both Explicit Conduits and the Unsaturated Zone in Karst Reservoir Hybrid Models: Impact on the Outlet Hydrograph
Authors: Dal Soglio Lucie , Danquigny Charles , Mazzilli Naomi , Emblanch Christophe , Massonnat Gérard
Published: November 2020

The main outlets of karst systems are springs, the hydrographs of which are largely affected by flow processes in the unsaturated zone. These processes differ between the epikarst and transmission zone on the one hand and the matrix and conduit on the other hand. However, numerical models rarely consider the unsaturated zone, let alone distinguishing its subsystems. Likewise, few models represent conduits through a second medium, and even fewer do this explicitly with discrete features. This paper focuses on the interest of hybrid models that take into account both unsaturated subsystems and discrete conduits to simulate the reservoir-scale response, especially the outlet hydrograph. In a synthetic karst aquifer model, we performed simulations for several parameter sets and showed the ability of hybrid models to simulate the overall response of complex karst aquifers. Varying parameters affect the pathway distribution and transit times, which results in a large variety of hydrograph shapes. We propose a classification of hydrographs and selected characteristics, which proves useful for analysing the results. The relationships between model parameters and hydrograph characteristics are not all linear; some of them have local extrema or threshold limits. The numerous simulations help to assess the sensitivity of hydrograph characteristics to the different parameters and, conversely, to identify the key parameters which can be manipulated to enhance the modelling of field cases.
Machine Learning to Estimate Surface Soil Moisture from Remote Sensing Data
Authors: Adab Hamed , Morbidelli Renato , Saltalippi Carla , Moradian Mahmoud , Ghalhari Gholam Abbas Fallah
Published: November 2020

Soil moisture is an integral quantity parameter in hydrology and agriculture practices. Satellite remote sensing has been widely applied to estimate surface soil moisture. However, it is still a challenge to retrieve surface soil moisture content (SMC) data in the heterogeneous catchment at high spatial resolution. Therefore, it is necessary to improve the retrieval of SMC from remote sensing data, which is important in the planning and efficient use of land resources. Many methods based on satellite-derived vegetation indices have already been developed to estimate SMC in various climatic and geographic conditions. Soil moisture retrievals were performed using statistical and machine learning methods as well as physical modeling techniques. In this study, an important experiment of soil moisture retrieval for investigating the capability of the machine learning methods was conducted in the early spring season in a semi-arid region of Iran. We applied random forest (RF), support vector machine (SVM), artificial neural network (ANN), and elastic net regression (EN) algorithms to soil moisture retrieval by optical and thermal sensors of Landsat 8 and knowledge of land-use types on previously untested conditions in a semi-arid region of Iran. The statistical comparisons show that RF method provided the highest Nash–Sutcliffe efficiency value (0.73) for soil moisture retrieval covered by the different land-use types. Combinations of surface reflectance and auxiliary geospatial data can provide more valuable information for SMC estimation, which shows promise for precision agriculture applications.
Denigration of general practice as a career choice: The students’ perspective. A qualitative study
Authors: Carlin Emmet , Alberti Hugh , Davies Kristen
Published: November 2020

Background

General practice in the UK and other parts of the world is facing a recruitment crisis with insufficient numbers of medical students selecting it as a career choice. Denigration of general practice has been postulated as one of the contributing factors.

Aim

To explore comments about general practice as a career made by clinical teachers from the medical student’s perspective, and in doing so to further understand the current difficulties of recruiting into general practice.

Design & setting

A qualitative, explorative study of three focus groups of medical students from two medical schools in northern England.

Method

A semi-structured interview format was utilised. The following four questions were posed to the participants about choosing general practice as a career: had they heard negative comments? Had they heard positive comments? Do they think comments influence student career decisions or is it a problem? Could they suggest any solutions to the issue? Results were analysed using thematic analysis.

Results

Students reported hearing both positive and negative comments about general practice as a career choice. They perceived the comments to potentially influence student career choice. Three underlying themes emerged: the individual (personal characteristics of students affecting the influence that comments have on them); the curriculum (presence and content of general practice teaching); and culture (in the medical school and profession). These were used to postulate a model that may explain how negative comments shape students’ perceptions of general practice.

Conclusion

Denigration of general practice is an ongoing problem within the medical profession and strategies to address it must be developed or recruitment to the specialty will continue to decline. This study suggests a model that can help to understand the complex relationship between different factors that result in negative comments being taken on board by medical students.
Efetividade da simulação realística no ensino de cuidados paliativos em enfermagem: estudo randomizado
Authors: Alves Bastos e Castro Margareth , Costa Bazílio Wendell , Alves de Morais Taís , Martins Jussara Regina , Almeida da Costa Rita de Cássia
Published: November 2020

Objetivo: Avaliar a efetividade da estratégia da simulação realística no ensino de cuidados paliativos entre estudantes de enfermagem.

Métodos: Ensaio randomizado controlado. Participaram 23 estudantes de enfermagem; 12, no grupo controle, que realizou pré-teste, palestra e pós-teste; 11, na intervenção, grupo com pré-teste, palestra, simulação realística e pós-teste.

Resultados: Os dados relacionados à média de respostas corretas no pré-teste com o pós-teste apresentaram significância estatística (p = 0,029). Na comparação entre as médias de sucessos com e sem simulação, apenas a não simulação foi significativa (p = 0,044) e para os participantes que realizaram a simulação não houve significância (p = 0,391).

Conclusão: A estratégia da simulação realística foi efetiva no ensino de cuidados paliativos entre os graduandos, evidenciado pelo escore positivo entre um primeiro e o segundo momento quando avaliados por meio de um teste cognitivo.
La Capacidad De & No Poder Hacer Milagros: Reflexiones Sobre El Abastecimiento De Las Expediciones De 1715, 1718 y 1720. 1
Authors: Martí-Fraga Eduard
Published: November 2020

Today there is a great discussion about the effects that the organization of military expeditions had on the civilian population and the economy of the province of departure. The issue is relevant because in order to carry them out, the State must have a great capacity to mobilize resources. Felipe V strove to achieve a centralized and effective government. But this only achieved in the twenties of the eighteenth century. In this context, it is worth asking how the Bourbon state functioned between 1715 and 1720. The study of the supply of three expeditions that took place during those years can help us to better understand this process. The objective of this article is to analyze three key questions: what reasons did the government have when choosing a seaport as the starting point of an expedition; determine the economic effects of this decision and show which social groups benefited from it.
Review Of The Implementation Of Inventory Accounting Systems By Per-02-Bc-2019 In Receiver Facilities Impor The Purpose Of Export (KITE)
Authors: Amwilla P Andi Yudha , HB Muanas
Published: November 2020

Ease of Import for Export Purposes (KITE) is a government facility to export growth by manufacturing companies. Given this facility, of course, through several conditions that must be met, including the Inventory Information System model owned by the company that must be computerized and accessed by Customs and Excise as required in Per-02 / BC / 2019. 

              This study aims to examine the suitability of the inventory information system owned by the company receiving the facility (KITE ), which is PT Batara Indah. PT Batara Indah registered as one of the companies using the KITE facility since 2014. 

              The research method used is the descriptive qualitative method through document study. Information gathering is done through desk studies and discussions with related parties in the company.

              The results showed that PT Batara Indah had implemented an Integrated Inventory Accounting Information System model. If referring to the expected Directorate General of Customs and Excise regulation, PT Batara Indah has complied with the law.
Exploring Prompted Self-Explanation for Second Language Learning in Vocational Education Settings
Authors: Reddy Sai Raj , Seshadri Vivek
Published: November 2020

In the Global South, English-language fluency is strongly associated with earnings. This in particular impacts young adults in low-income settings looking to start work in urban areas without past access to high-quality English language education. In this work, we explore prompted self-explanation as a potential tool for assessing student efficacy in English grammar concepts with students undergoing a vocational training program. Using in-depth analysis of video recordings of students explaining concepts in English as a Second Language (ESL), we find that self-explanation (1) correlates with overall ESL assessment scores, and (2) assists learners identify and correct errors.
Instantáneas de una pandemia. Mirar en un régimen de confinamiento.
Authors: Anta Félez José-Luis , Grana Romina
Published: November 2020

En este texto de ensayo y de manera reflexiva planteamos cómo es una nueva tecnología social que denominamos Régimen de confinamiento, y que se ha usado durante la actual pandemia. A través de un relato autoetnográfico y autoreferencial, planteado en forma de instantáneas en la vida de una mujer encerrada en una ciudad de la argentina actual. Así desgranamos la vida en lo doméstico, las ideas de género, de trabajo, de edad en lo cotidiano. Se revela la relación con los medios, en las redes sociales y con las nuevas formas de biopolítica. Este trabajo da cuenta de un momento en que todo queda en suspenso y da tiempo, consiguientemente, a ver en qué mundo vivimos, cómo es nuestra vida interior y su relación económico-política con el afuera. Un momento privilegiado para pensar y preguntarnos.
Riesgos psicosociales y estrés laboral en tiempos de COVID-19: instrumentos para su evaluación.
Authors: Martínez Martínez Luz
Published: November 2020

En el mundo, casi tres millones de personas mueren al año por accidentes o enfermedades relacionadas con el trabajo, más de quinientos sufren enfermedades ocupacionales o lesiones. En 2019, el estrés laboral causó el 30% de las bajas en España, con un alto coste y reducción de la productividad. La COVID-19 presenta nuevos retos, casi cuatro millones de parados, otros cuatro con un ERTE y una recuperación incierta y lenta que provoca inestabilidad. También nuevos riesgos relacionados con el trabajo y el estrés. Distintos organismos defienden la importancia de la salud y bienestar laboral en todos los aspectos, físicos, mentales y sociales. Ante esta situación es imprescindible la detección de factores psicosociales de riesgo que afectan a la salud en entornos laborales para crear planes de prevención eficaces y adaptados a las situaciones cambiantes. Algunos autores destacan la dificultad de esta evaluación por metodologías insuficientes a nivel conceptual y técnico o faltos de estandarización. El objetivo de este trabajo es identificar distintas herramientas, dimensiones, fiabilidad, validez, análisis psicométrico y uso, que sirvan de referentes para la investigación en PRL. Se realizó un análisis descriptico documental de revisión bibliográfica en buscadores y páginas de organismos especializados. Se ofrecen algunos instrumentos de medición con alta confiabilidad para la detección de factores psicosociales en diversos contextos. Se recomienda complementar estas herramientas con otras que tengan en cuenta otras variables como la incertidumbre, la ansiedad o el estado mental.
Rol e importancia del profesional en ciencias de la actividad física en la sociedad durante y post-confinamiento por COVID19: una visión general de diferentes profesionales de la salud.
Authors: Simón Grima Javier , López Pérez Camino
Published: November 2020

Resumen: El 11 de marzo de 2020, la Organización Mundial de la Salud (OMS) declaró como pandemia a la Covid-19. Esta nueva situación ha provocado que los ciudadanos de todo el mundo estén confinados en sus hogares. En España, uno de los países más fuertemente golpeados por el virus, sus ciudadanos se mantienen recluidos en sus casas desde el día 14 de marzo, fecha en la cual se decretó el estado de alarma. Este confinamiento ha conllevado, entre otras cosas (aislamiento social, baja exposición a la luz solar, etc.), una disminución drástica de la actividad física diaria. Debido a que la falta de ejercicio físico o la mala ejecución de este empeora la salud general de las personas, los profesionales de las ciencias de la actividad física y el deporte (CCAFD) cobran importancia estos días. El objetivo del presente estudio fue recabar y conocer las opiniones de diferentes profesionales de la salud (médicos, podólogos, fisioterapeutas, investigadores, etc.) sobre la importancia presente y futura del profesional en CCAFD en la sociedad. Para conseguir el objetivo propuesto, se llevaron a cabo entrevistas semiestructuradas en profesionales de la salud (n=33). Los resultados mostraron que el 72,7% de la muestra consideró que el profesional en CCAFD está poco reconocido por las autoridades, asimismo el 60,6% opinó que no están reconocidos por la sociedad. Las conclusiones principales son que se debería de considerar la inclusión de los profesionales en CCAFD en la sanidad pública, así como la regulación de su profesión para evitar el intrusismo laboral.
PENYELESAIAN PERKARA PERSAINGAN USAHA BERDASARKAN SIKAP INISIATIF KOMISI PENGAWAS PERSAINGAN USAHA
Authors: Hasan Fuad , Zubaedah Rahmi , Apriani Rani
Published: November 2020

Sumber perkara yang dimiliki oleh KPPU selain dari laporan dugaan pelanggaran yang dibuat oleh masyarakat atau pelaku usaha, didapati pula dari sikap inisiatif KPPU. Isu yang beredar ditengah masyarakat khususnya mengenai masalah praktik monopoli atau persaingan usaha tidak sehat membuat KPPU harus lebih ekstra kerja keras dalam membuktikan dugaan tersebut. Bagaimana upaya penyelesaian perkara persaingan usaha berdasarkan sikap inisiatif KPPU ditinjau dari Undang-Undang Persaingan Usaha juncto Peraturan KPPU No.1 tahun 2019? Metode yang dipakai pada penelitian ini berupa yuridis normatif dengan pendekatan studi kasus praktik diskriminasi yang dilakukan oleh PT Chevron Indonesia Company. Penyelesaian sengketa berdasarkan sikap inisiatif diawali dari penelitian investigator sampai musyawarah majelis komisi. Penelitian ini bertujuan untuk mendapatkan bukti awal adanya dugaan kegiatan usaha dan/atau tindakan pelaku usaha yang dapat mengakibatkan terjadinya praktik monopoli dan/atau persaingan usaha tidak sehat.
Pengaruh Peran Kepala Ruangan Terhadap Kinerja Perawat Dalam Pemberian Asuhan Keperawatan Diruang Rawat Inap
Authors: Mulat Trimaya Cahya , Hartaty Hartaty
Published: November 2020

Menjadi hal yang aneh atau tidak semestinya terjadi, apabila masyarakat umum dan lingkungannya terus menerus berubah, sedangkan keperawatan yang merupakan bagian dari masyarakat tersebut tidak berubah dalam menata kehidupan profesi keperawatan. Tujuan mengetahui pengaruh peran kepala ruangan terhadap kinerja perawat pelaksana dalam pemberian asuhan keperawatan. Metode penelitian menggunakan jenis penelitian survey analitik dengan pendekatan cross sectional. Data dikumpulkan dengan menggunakan kuesioner serta dianalisa dengan menggunakan uji regresi linear pada tingkat signifikan a<0, 05. Hasil berdasarkan uji regresi linear (uji T) menunjukkan bahwa ada pengaruh peran kepala ruangan terhadap kinerja perawat pelaksana dalam pemberian asuhan keperawatan yaitu; perencanaan (r=0,007), pengorganisasian (r=0,005), pengarahan (r=0,008) dan pengawasan (r=0,006). Kesimpulan perencanaan, pengorganisasian, pengarahan, pengawasan kepala ruangan terhadap kinerja perawat pelaksana dalam pemberian asuhan keperawatan. Kemampuan manajerial kepala ruang dalam mengelola pelayanan keperawatan dan mengikutsertakan kepala ruang yang belum mempunyai sertifikat dalam pelatihan manajemen bangsal perawatan serta menyusun kebijakan tentang sistem seleksi dalam pengangkatan kepala ruang yang berbasis kompetensi
CHALLENGES IN FORENSIC DETECTION OF FORGERY BY DISAPPEARING INK
Authors: Saha Sujay , Barik Ashok Kumar , Jena Kananbala
Published: November 2020

Common People have used ink and paper for making notes for a long time. Due to public trust on permanency and authenticity of records written in ink, handwritten entries on different types of printed banking instruments has enjoyed confidence of both banks and customers for a long time. But, ink writings could be manipulated to achieve intentions of fraudsters without knowledge of the writer.
Fraudsters first erase the ink writing by different methods and cover the area with new writings. Common methods to erase writings are physical and chemical erasures. In the cases where physical erasures are done, either traces of ink left on the paper or the signs of abrasion on the paper attracts the attention of examiner. Chemical erasures mostly lead to change in tint of the surface in the affected area. Both chemical and physical erasure leads to loss of micro printing done as a security feature in the area. Recently, we came across a case where earlier writings were changed without any easily detectable changes in normal light. Market survey reveals that disappearing ink pens are commercially available which can disappear after writing on paper in matter of hours. Since no physical abrasion is required or chemicals were used to erase the same, no tell tale signs of either kind of erasure is readily detected. This paper discusses how one such case could be detected and suggests directions to design a module so that these types of cases do not go undetected.
FIBRO-LIPOMATOUS HAMARTOMA.
Authors: V Gayathri . , K Venkatachalam. , R Ampalaya Manu , N Chitra Lekha A.
Published: November 2020

Fibro-lipomatous hamartomas are non-malignant tumors that are commonly seen in infants and rarely affect young adults and children.[1] Neural fibro-lipoma, lipo-fibromatous hamartoma, peri-neural lipoma and intra-neural lipoma are the other terms used for fibrolipomatous hamartoma. Among all, the median nerve is by far the most commonly affected(80% of cases) and less commonly the ulnar and radial nerves, and brachial plexus. [2]

Although median nerve is the commonly affected nerve, lesions are also found in the radial, sciatic, plantar and ulnar nerves. Further,the median nerve is most commonly involved at the level of hand and wrist.[3]
SALIVA - A PROSPECTIVE DIAGNOSTIC TOOL FOR SARS CoV-2
Authors: Vishwanath Tarunya , Arumugam Shalini , R Sathish. , Logaranjini Anitha , Prashanthi Prashanthi
Published: November 2020

Coronavirus disease 2019 (COVID-19) now called the severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) was first identified in Wuhan city, Hubei province, China. Currently RT-PCR using nasopharyngeal and Oropharyngeal swabs is supposed to be the most efficacious and standard technique for COVID testing, but are invasive and have a few drawbacks due to which, saliva as a diagnostic specimen is proposed. Salivary specimen collection is non-invasive and can be self-collected at any time and repeatedly and greatly minimises the exposure of. healthcare workers to COVID-19.
AN INTERESTING CASE OF PUJ OBSTRUCTION DUE TO A VASCULAR BAR
Authors: Singh Sandesh B , Vaishampayan Amogh , Belekar Dnyanesh
Published: November 2020

Pelvi-ureteric junction obstruction is a common urological entity presenting with hydronephrosis and pain. Most commonly the causative factor being a calculus in the upper ureter or at PUJ. Other causes being strictures, idiopathic brosis and less commonly aberrant renal vessel. Vascular bar is the new terminology coined for this vascular entity. Here we present a case of 36 year old woman who presented with left PUJ obstruction, which was found to be due to a vascular bar crossing at the pelvi ureteric junction.
A CASE REPORT OF TRIMALLEOLAR FRACTURE TREATED WITH PLATING AND TENSION BAND WIRING
Authors: Krishna Ajay , Pandian Thiagarajan
Published: November 2020

A case of trimalleolar fractures of left ankle has been described here. Fractures around the ankle joint mainly depend on the direction of forces during trauma ,position of the ankle and foot at the hour of injury. A 44 year-old man fell off a two wheeler on a road and sustained injury to his left ankle. X-ray radiographs were taken and patient was diagnosed to have left sided post traumatic closed trimalleolar fracture with lauge Hansen classification of supination external rotation without any distal neurovascular deficit. Patient underwent osteosyntheses and During the post-operative period there was no complications.
Exact BER Analysis of NOMA with Arbitrary Number of Users and Modulation Orders
Authors: Yahya Hamad , Alsusa Emad , Al-Dweik Arafat
Published: November 2020

Non-orthogonal multiple access (NOMA) is considered a promising candidate for future mobile networks due to its ability to provide improved spectral-efficiency, massive connectivity and low latency. As such, studying the bit error rate (BER) performance of NOMA is crucial, particularly as its BER performance depends on the power assignment for each user. Therefore, this paper derives exact BER expressions under additive white Gaussian noise (AWGN) and Rayleigh fading channels for an arbitrary number of NOMA users, where each user employs quadrature amplitude modulation (QAM) with an arbitrary modulation order. Furthermore, the power coefficient bounds (PCB), which ensure fairness between users and solve the constellation points ambiguity problem, are derived for the two and three users NOMA system with arbitrary, but identical, modulation orders. However, the procedure to find these bounds for any modulation orders are exemplified. In addition, this paper finds the optimal power assignment that minimizes the system's average BER for N=2 and 3 users cases. The integrity of the analytical expressions is verified by Monte Carlo simulations, where the results give a valuable insight on the system's BER performance and power assignment granularity. It is shown that the feasible power assignment range becomes significantly small as the modulation order, or the number of users, increases, where the BER performance degrades due to the increased inter-user interference (IUI).
COX, TEORIA CRÍTICA DAS RELAÇÕES INTERNACIONAIS E O REALISMO
Authors: Casanova Luis Felipe Telles , Passos Rodrigo Duarte Fernandes dos
Published: November 2020

Este texto busca responder ao seguinte problema de pesquisa: a partir fundamentalmente da bibliografia de autoria de Robert W. Cox, como caracterizar diferenças e semelhanças da teoria crítica com o realismo e explicar seu apreço pelo legado teórico de Hedley Bull, considerando-o, por consequência, compatível com o enfoque da teoria crítica? O texto busca também testar a seguinte hipótese, que responderia ao problema enunciado: considerando várias diferentes possibilidades referentes a semelhanças e diferenças entre realismo e teoria crítica das Relações Internacionais, o principal ponto de semelhanças e diferenças reside na consideração comum da história, mas na abordagem de Cox o conceito de história de Cox é definido implicitamente de modo eclético, incoerente e impreciso.
O conflito no Mali
Authors: Parenti Maria Carolina Chiquinatto
Published: November 2020

O Mali é um país que vem sendo cenário de vulnerabilidades e conflitos internos ao longo de sua história recente. Dentre as diversas etnias que compõem a sociedade, distinguem-se os tuaregues, um grupo nômade que se localiza na região norte do país. Marginalizados e discriminados pelo governo desde a independência, começou a despertar no grupo um desejo pela criação de um estado autônomo, o Azawad. No decorrer dos anos, os tuaregues realizaram revoltas pelo país com o intuito de concretizar seus objetivos. Aliado a isso, o Mali ainda é alvo da presença de grupos islâmicos fundamentalistas que buscam por espaço no país. O constante aumento da violência e da deterioração da estabilidade fez com que o país recebesse ajuda internacional. Foram empenhadas diversas tentativas de se colocar um fim ao conflito: primeiramente, foi instituída uma missão de paz conjunta liderada pela Comunidade Econômica dos Estados da África Ocidental (ECOWAS), sofreu intervenção da França a pedido do próprio governo, e recebeu uma operação de paz da ONU para controlar a situação no país. Dessa forma, o trabalho tem o objetivo de analisar o conflito do Mali e as tentativas de resolução pela comunidade internacional.
Working out of design procedure of sheet metal straightening parameters on roller-type straightening machine in rollers of different diameter
Authors: Maksimov E.A. , Ustinovsky E.P.
Published: November 2020

It is installed that non-uniform deviations from planeness of sheet different in magnitude, and also having
negative and positive curvature at straightening on the traditional roller-type straightening machine, as rule, are
not corrected, as the car has equal diameters of all working rollers which affects on planeness defect of sheet
with equal curvature of rollers barrels. Dependences for calculation of roller radius and return bend angle are presented. It is shown that if the return bend angle is equal to initial bend angle of sheet at counter-camber the sheet
is completely detected; if the return bend angle is less than initial bend angle of sheet return bend occurs partially,
the sheet also is detected partially; if the return bend angle is more than initial bend angle of sheet the sheet is
bent towards return bend. Dependences for calculation of powers of the editing spent for alternating bending of
sheet, the power spent for friction of rolling motion of rollers on surface of sheet, the power spent for overcoming of frictional force on necks of carrying rollers in roller-type straightening machine with rollers of different
diameters. Calculation of power consumption of the main drive electric motor at straightening of sheets from
low-alloy steel for 5 —7-roller straightening machines with different diameters of rollers is presented. Difference
between calculation results and the experiment data showed, difference makes 10...20 % that testifi es to adequacy
of model and about possibility of its practical use for calculations of straightening parameters of sheet products
on roller-type straightening machine with different diameters of rollers.
DESENVOLVIMENTO DE UM APLICATIVO PARA SMARTPHONE SOBRE
A FUNÇÃO SEXUAL NA GRAVIDEZ: GRAVSEX
Authors: Monteiro Brenda Beatriz Silva , Leite Daniela Ferreira , Cavalcante Isabela Lima , Matias Luisa Cabral , Costa Yara Campos da , Torres Luciano Gil Saldanha , Nunes Erica Feio Carneiro
Published: November 2020

Objetivo: Orientar mulheres grávidas sobre função sexual por meio de um aplicativo. Método: Estudo qualitativo e experimental surgido de uma observação acadêmica em gestantes. Durante a elaboração do aplicativo, o projeto foi submetido ao Comitê de Ética, pois não teve o envolvimento com seres humanos. Todos os sujeitos da pesquisa foram estudados segundo as Normas de Pesquisa Envolvendo Seres Humanos do Conselho Nacional de Saúde. Ademais, um Grupo Piloto de mulheres grávidas foi recrutado com o intuito de testar a aceitação do aplicativo móvel pelo público alvo. Resultados: O recurso esteve disponível em plataforma online. Por meio de um link, a grávida tem acesso direto ao aplicativo. Ao abrir, aparece o símbolo do aplicativo e, em seguida, a tela de boas vindas com a opção de escolha entre as seções. Na seção “dúvidas frequentes” constam dez dúvidas sobre função sexual. A seção “mitos e verdades” possui dez frases. Por fim, na seção “posições sexuais” tem disponível imagens das melhores posições que ela pode usar para a prática da relação sexual. Conclusão: O aplicativo GravSex surge como uma ferramenta completa em relação aos atuais aplicativos, o qual reúne informação, orientações, dinamicidade e tecnologia para mulheres no período gravídico.