bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation and Spatial Characteristics of Cooperation among Tourist Attractions Based on a Geographic Information System: A Case Study of The Yangtze River Delta Region, China
Authors: Wang Yuewei , Lu Cong , Chen Hang , Zhao Yuyan
Published: October 2022

With the development of global economic integration and the gradual formation of unified tourism markets, strengthening regional tourism cooperation has become an internal requirement of regional tourism development but also a new way of sustainably developing tourism. This study selected the key factors affecting the cooperation of tourist attractions, including the competitiveness of tourist attractions and the relationships among tourist attractions, and established an evaluation index system and mathematical model of tourist attractions’ cooperation. Furthermore, the level of cooperation was evaluated. According to the value of the cooperation level, the spatial characteristics of the cooperation level were analyzed using a geographic information systems analytical method, which can better reflect the competitiveness, relationships, and overall cooperation level of tourist attractions. The results showed that the tourism competitiveness of tourist attractions was generally strong and their internal relations relatively close, and the overall tourism cooperation level was high. However, a two-dimensional four-quadrant map revealed that there were still great differences in tourism competitiveness among tourist attractions and their internal relations. Twenty-three tourist attractions exhibited weak tourism competitiveness and sparse relationships with other tourist attractions. The tourism competitiveness of tourist attractions and their internal relations and tourism cooperation level showed positive spatial autocorrelation and spatial agglomeration characteristics. The spatial differentiation of an “inverted U-shape” indicated that the cooperation level, tourism competitiveness, and mutual relations of tourist attractions were not balanced and that a stable and gradual spatial transformation had not been achieved. This study can provide valuable insights for the government to formulate policies and measures for regional tourism cooperation, carry out regional joint marketing, and help tourism enterprises design tourist routes.
Performance Investigation of Geopolymer Grouting Material with Varied Mix Proportions
Authors: Liu Jianwei , Feng Han , Zhang Yongxing , Zheng Kaiqi
Published: October 2022

Grouting materials require not only high ultra-early-stage strength of the stone body, but also proper working performances, such as high fluidity and fast setting time, as well as good stability. Compared with the traditional pure cement grout, geopolymer grouting material has the advantages of fast setting time, high fluidity, good slurry stability, and high early strength of the slurry stone body, which is beneficial to reuse solid waste resources and can be applied to the conditions of rapid construction or repair work to a certain extent. This paper presents an experimental investigation into the performance variation of geopolymer grouting material with varied mass fractions of raw materials, and the grouting performance of geopolymer material with optimal mix proportion is also presented. The study is implemented by employing the designed experimental schemes, focused on fluidity and setting times, as well as ultra-early-stage (4 h, 8 h, 12 h, 16 h, 20 h, and 24 h) mechanical strength. The experimental result demonstrates that both ground granulated blast-furnace slag (GGBS) content and the mass ratio of activator solution to solid have influence on the working performance of geopolymers, and both GGBS content and activator concentration have influence on the mechanical strength of geopolymers. Furthermore, the variance analysis demonstrates that the fluidity of geopolymer material is dominantly affected by the mass ratio of activator solution to solid, the setting time of geopolymer material is mainly influenced by GGBS content, and the mechanical strength of geopolymer material is mainly affected by activator concentration. Moreover, the recommended mix proportion of geopolymer grouting material is proposed in this study, in which the replacement rate of GGBS is 45%; the modulus and concentration of modified sodium silicate activator are 1.5 and 75%, respectively; and the mass ratio of activator solution to solid is 1.5. In the recommended mix proportion, the geopolymer material has excellent comprehensive performance to implement grouting operation, in which the compressive and tensile strengths of the stone body reach 12.2 MPa and 0.8 MPa in 4 h, and reach 21.2 MPa and 2.1 MPa in 24 h. The fluidity is 223 mm, the initial setting and final setting times are 50 min and 57 min, the slurry stability of geopolymer material is good without liquid precipitation, in which the setting time is far less than 2 h. This work provides the experimental foundations for investigating the performance of geopolymer grouting material, which is also expected to provide reference for the further application and promotion of geopolymer materials used for grouting operations in rapid construction or repair work.
Deformation and Failure Mechanism of a Massive Ancient Anti-Dip River-Damming Landslide in the Upper Jinsha River
Authors: Li Yanlin , Yao Aijun , Gong Yifei
Published: October 2022

Landslides are a typical geological hazard that can cause large numbers of casualties and huge economic losses, and the overflow of a weir from a blocked river landslide can have even more disastrous consequences. Of the different types of landslides, about 33% of landslides happen in anti-dip slopes. This paper reports a massive ancient anti-dip river-damming landslide on the Jinsha River: the Zongrongcun landslide. Field investigation and theoretical analysis were used to reveal the potential mechanism of this ancient landslide, and the block discrete element software 3DEC was used to replicate its landslide process. The findings from the present study are as follows: (1) blocks in this landslide were classified into significant slide, significant toppling, and significant slide categories based on Df. (2) The whole landslide was divided into significant sliding and toppling zones by Df = 0.5. (3) The results show that the river-damming landslide was likely to be triggered by river erosion, heavy rainfall, gravity. Under strong valley trenching, the rocks on the slope fractured under gravity and tectonic stress. These factors caused rock blocks tensile fracture failure. Then a penetrating sliding surface formed on the slope, which subsequently caused this river-damming landslide.
Evaluation of Satellite-Based and Reanalysis Precipitation Datasets with Gauge-Observed Data over Haraz-Gharehsoo Basin, Iran
Authors: Goodarzi Mohammad Reza , Pooladi Roxana , Niazkar Majid
Published: October 2022

Evaluating satellite-based products is vital for precipitation estimation for sustainable water resources management. The current study evaluates the accuracy of predicting precipitation using four remotely sensed rainfall datasets—Tropical Rainfall Measuring Mission products (TRMM-3B42V7), Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks Climate Data Records (PERSIANN-CDR), Cloud Classification System-Climate Data Record (PERSIANN-CCS-CDR), and National Centers for Environmental Prediction (NCEP)-Climate Forecast System Reanalysis (CFSR)—over the Haraz-Gharehsoo basin during 2008–2016. The benchmark values for the assessment are gauge-observed data gathered without missing precipitation data at nine ground-based measuring stations over the basin. The results indicate that the TRMM and CCS-CDR satellites provide more robust precipitation estimations in 75% of high-altitude stations at daily, monthly, and annual time scales. Furthermore, the comparative analysis reveals some precipitation underestimations for each satellite. The underestimation values obtained by TRMM CDR, CCS-CDR, and CFSR are 8.93 mm, 20.34 mm, 9.77 mm, and 17.23 mm annually, respectively. The results obtained are compared to previous studies conducted over other basins. It is concluded that considering the accuracy of each satellite product for estimating remotely sensed precipitation is valuable and essential for sustainable hydrological modelling.
Research on the Unit Black-Start Strategy Considering Recovery Path and Start Sequence
Authors: Zhao Jie , Liang Yilin , Fang Yudi , Weng Yixuan , Ma Weizhe , Zhang Huaixun , Zhang Yiyang
Published: October 2022

Large-scale power outage events bring serious economic losses to national and social development and cause bad impacts, and the reasonable formulation of a unit black-start strategy is the basis of power outage recovery. Firstly, the Dijkstra shortest path algorithm is used to search for the optimal recovery path of the unit to be started after a major blackout occurs, and secondly, a comprehensive index of the unit start sequence considering the unit characteristics and unit distance is defined to guide the unit start sequence formulation by combining the unit capacity, climbing rate, start power, and other characteristics with the recovery time and capacitance value of the recovery path. Finally, based on the unit start sequence and optimal recovery path, and taking into account the unit start constraints, a complete unit black-start strategy is proposed, and the effectiveness of this strategy is verified by IEEE30 node system simulation. The results show that the proposed unit black-start strategy can reduce the unit recovery time and improve the recovery success rate.
Analysis of Landscape Composition and Configuration Based on LULC Change Modeling
Authors: Yaghoobi Masoomeh , Vafaeenejad Alireza , Moradi Hamidreza , Hashemi Hossein
Published: October 2022

Land cover changes threaten biodiversity by impacting the natural habitats and require careful and continuous assessment. The standard approach for assessing these changes is land cover modeling. The present study investigated the spatio-temporal changes in Land Use Land Cover (LULC) in the Gorgan River Basin (GRB) during the 1990–2020 period and predicted the changes by 2040. First, a change analysis employing satellite imagery from 1990 to 2020 was carried out. Then, the Multi-Layer Perceptron (MLP) technique was used to predict the transition potential. The accuracy rate, training RMS, and testing RMS of the artificial neural network, MLP, and the transition potential modeling were computed in order to evaluate the results. Utilizing projections for 2020, the prediction of land cover change was made. By contrasting the anticipated land cover map of 2020 with the actual land cover map of 2020, the accuracy of the model was evaluated. The LULC conditions in the future were predicted under two scenarios of the current change trend (scenario 1) and the ecological capability of the land (scenario 2) by 2040. Seven landscape metrics were considered, including Number of Patches, Patch Density, the Largest Patch Index, Edge Density, Landscape Shape Index, Patch Area, and Area-Weighted Mean Shape Index. Based on the Cramer coefficient, the most critical factors affecting LULC change were elevation, distance from forest, and experimental probability of change. For the 1990–2020 period, the LULC change was shown to be influenced by deforestation, reduced rangeland, and expansion of agricultural and residential areas. Based on scenario 1, the area of forest, agriculture, and rangeland would face −0.8, 0.5, and 0.1% changes in the total area, respectively. In scenario 2, the area of forest, agriculture, and rangeland would change by 0.1, −1.3, and 1.3% of the total area, respectively. Landscape metrics results indicated the destructive trend of the landscape during the 1990–2020 period. For improving the natural condition of the GRB, it is suggested to prioritize different areas in need of regeneration due to inappropriate LULC changes and take preventive and protective measures where changes in LULC were predicted in the future, taking into account land management conditions (scenario 2).
A Study of the Relation between Byline Positions of Affiliated/Non-Affiliated Authors and the Scientific Impact of European Universities in Times Higher Education World University Rankings
Authors: Kohus Zsolt , Demeter Márton , Kun László , Lukács Eszter , Czakó Katalin , Szigeti Gyula Péter
Published: October 2022

Universities have undergone a profound transformation to increase their competitiveness and research performance; evaluating their research output and scientific impact is therefore of great importance. This article aims to suggest an approach to analyze how the JIF quartile share of research articles differs among European universities in medical science, and how the byline positions of affiliated and non-affiliated authors can influence an article’s scientific impact. We examined the research output of universities in the Top 5 European and Visegrad Group Countries based on the Times Higher Education (THE) World University Ranking 2022 (University of Oxford, ETH Zurich, Karolinska Institute, Charité—Universitätsmedizin Berlin, KU Leuven, Semmelweis University, Jagiellonian University, Charles University Prague, and Comenius University Bratislava). We found that the share of Q1 and the less prestigious Q3 and Q4 papers are inversely proportional when plotted against the ranks of universities. Whilst the proportion of Q1 papers is higher for the Top 5 universities, this ratio decreases with a less prominent place in the ranking. The presence of non-affiliated authors in the first, last, and corresponding author byline positions has a significantly positive effect on the Category Normalized Citation Impact, correlating with the position of the university in the ranking. Moreover, the difference in the Category Normalized Citation Impact between papers with affiliated and non-affiliated authors is also specific to university rank.
Effect of Phosphogypsum on Soil Physical Properties in Moroccan Salt-Affected Soils
Authors: Outbakat M Barka , El Mejahed Khalil , El Gharous Mohamed , El Omari Kamal , Beniaich Adnane
Published: October 2022

Salinity is one of the most critical challenges for crop production and soil and water management in arid and semi-arid regions, such as a large area of Morocco. These regions are characterized by low rainfall with an erratic distribution, long drought periods, and high evaporation, resulting in salt accumulation in the superficial layer of the soil and soil and water degradation. Therefore, phosphogypsum (PG) could be a promising amendment to reduce the salinity effect and improve soil quality in salt-affected soils. In this context, the present study aimed to evaluate the effect of PG on the physical properties of Luvisols and Cambisols collected from salt-affected soils in four regions in Morocco: Chichaoua, Ras El Ain, Sidi Zouine, and Sed El Masjoune. The treatments consisted of different rates of PG (15, 30, and 45 t/ha), natural Gypsum (G) (15 t/ha), and control. Our findings revealed that PG application improved soil structure by promoting flocculant action provided by calcium. Linear regression indicated that Water Aggregate Stability (WAS) and PG doses were strongly correlated with a high coefficient of determination (R2 = 93.41%, p value < 0.05). Compared to the control, the overall efficiency of 45 t/ha of PG amendment reached 53%, 95%, and 36%, respectively, in Chichaoua, Ras El Ain, and Sed El Masjoune soils. PG application presented a positive effect on other soil physical properties (soil hydraulic properties, total porosity, and bulk density), especially for the soils of Chichaoua and Ras El Ain regions. The total porosity was increased by 8% with 45 t PG/ha in Ras El Ain soil, and in Chichaoua soil, the bulk density was 5% lower in the pot treated with 45 t PG/ha compared to the control. This study supports the use of PG as an amendment for reclaiming salt-affected soils through monitoring agronomic and environmental impacts.
The Impact of Small-Scale Greening on the Local Microclimate—A Case Study at Two School Buildings in Vienna
Authors: Teichmann Florian , Horvath Andras , Luisser Markus , Korjenic Azra
Published: October 2022

Strategies to mitigate urban heat islands are a recent issue in the Austrian capital, Vienna. In this study, the uhiSolver-v2106-0.21 software was used to evaluate the summer cooling effects and humidity production of small-scale facade greening and a green pergola located in two schools within the city. Based on on-site measurement data, the study revealed that small-scale greening measures are not able to substantially reduce ambient air temperature. On a hot summer day, at 3 p.m. local time (CEST), the maximum decrease amounted to 0.3 °C at 0.1 m from the facade greening as well as inside the green pergola. As for the apparent (perceived) temperature, a reduction of up to 4 °C was observed under the green pergola compared to the unshaded roof terrace. Hence, the simulation results show that, within urban areas, a significant improvement of thermal comfort in summer can only be achieved through large-scale greenery that provides shade for pedestrians.
The NOAEL Equivalent of Environmental Cadmium Exposure Associated with GFR Reduction and Chronic Kidney Disease
Authors: Satarug Soisungwan , Đorđević Aleksandra Buha , Yimthiang Supabhorn , Vesey David A. , Gobe Glenda C.
Published: October 2022

Cadmium (Cd) is a highly toxic metal pollutant present in virtually all food types. Health guidance values were established to safeguard against excessive dietary Cd exposure. The derivation of such health guidance figures has been shifted from the no-observed-adverse-effect level (NOAEL) to the lower 95% confidence bound of the benchmark dose (BMD), termed BMDL. Here, we used the PROAST software to calculate the BMDL figures for Cd excretion (ECd) associated with a reduction in the estimated glomerular filtration rate (eGFR), and an increased prevalence of chronic kidney disease (CKD), defined as eGFR ≤ 60 mL/min/1.73 m2. Data were from 1189 Thai subjects (493 males and 696 females) mean age of 43.2 years. The overall percentages of smokers, hypertension and CKD were 33.6%, 29.4% and 6.2%, respectively. The overall mean ECd normalized to the excretion of creatinine (Ecr) as ECd/Ecr was 0.64 µg/g creatinine. ECd/Ecr, age and body mass index (BMI) were independently associated with increased prevalence odds ratios (POR) for CKD. BMI figures ≥24 kg/m2 were associated with an increase in POR for CKD by 2.81-fold (p = 0.028). ECd/Ecr values of 0.38–2.49 µg/g creatinine were associated with an increase in POR for CKD risk by 6.2-fold (p = 0.001). The NOAEL equivalent figures of ECd/Ecr based on eGFR reduction in males, females and all subjects were 0.839, 0.849 and 0.828 µg/g creatinine, respectively. The BMDL/BMDU values of ECd/Ecr associated with a 10% increase in CKD prevalence were 2.77/5.06 µg/g creatinine. These data indicate that Cd-induced eGFR reduction occurs at relatively low body burdens and that the population health risk associated with ECd/Ecr of 2.77–5.06 µg/g creatinine was not negligible.
k-Essence Inflation Evading Swampland Conjectures and Inflationary Parameters
Authors: Jawad Abdul , Rani Shamaila , Sultan Abdul Malik , Embreen Kashaf
Published: October 2022

In this paper, we study the inflationary scenario in the realm of k-essence model and swampland conjectures. Taking into account three models of Chaplygin gas, such as generalized, modified, and generalized cosmic Chaplygin gas models, we discuss the equation of state (EoS) parameter ω, slow roll parameters (ϵ(ϕ),η(ϕ)), curvature perturbation (Ps), tensor to scalar ratio (r), and scalar spectral index (ns). As regards the k-essence model, the coupling function as a function of scalar field L(ϕ) is used. We investigate the swampland conjecture and then find the value of ζ(ϕ), i.e., bound of second conjecture for these three models by unifying swampland conjecture and k-essence. We plot the EoS parameter ω, inflationary parameters plane r−ns and bound of swampland conjecture ζ(ϕ)−ϕ, which determine that the values of ω<−1 for each model, r, are r<0.0094,r≤0.0065,r≤0.0067, and ranges for ns are [0.934,0.999],[0.9,0.999],[0.9,0.992] for generalized, modified, and generalized cosmic Chaplygin gas models, respectively, and compare their compatibility with the Planck data from 2018. Furthermore, we determine the bound for swampland conjecture as ζ(ϕ)≤0.992,ζ(ϕ)≤0.964,ζ(ϕ)≤0.964 for generalized, modified and generalized cosmic Chaplygin gas models, respectively.
NIRAVARI: A Parsimonious Bio-Decisional Model for Assessing the Sustainability and Vulnerability of Rainfed or Groundwater-Irrigated Farming Systems in Indian Agriculture
Authors: Bergez Jacques-Eric , Baccar Mariem , Sekhar Muddu , Ruiz Laurent
Published: October 2022

Groundwater irrigation is essential to sustain food production, and aquifer depletion represents a major sustainability challenge for humanity. There is a need for adequate modelling tools to assess the impacts of farming practices on groundwater resources with policy-makers and farmers in different contexts, especially in the case of smallholder farms in the tropics. We introduce the NIRAVARI model, which was designed to represent the Indian farming and water resource context. NIRAVARI is a parsimonious model integrating biophysical and decisional processes dealing with the farming system and the water table processes. A specific focus is given to how to irrigate with multiple water resources. Its formalisms include equations from well-tested published models for soil moisture and plant water stress simulations. The programming and graphic user interface is based on Excel VBA. We illustrate the ability of NIRAVARI to simulate a broad range of farmer adaptation strategies using four scenarios of cropping systems and water resources policies, and therefore, its interest for participatory scenario design and assessment with stakeholders.
Reconfigurações do Jornalismo Audiovisual: um estudo da cobertura do Fantástico sobre a pandemia da Covid-19
Authors: Becker Beatriz
Published: October 2022

A partir da Análise Televisual de 14 edições do Fantástico e entrevistas realizadas com profissionais que atuam no programa da Rede Globo de Televisão, este trabalho evidencia reconfigurações do jornalismo audiovisual articuladas à cobertura da pandemia da Covid-19. O estudo revela como as narrativas jornalísticas operaram a construção audiovisual da realidade, sob o negacionismo do governo federal no Brasil, e atribuíram significações à pandemia que ainda permeiam o imaginário social. O uso de imagens de profissionais e amadores captadas por videoconferências e dispositivos móveis e a exploração da emoção, abriram espaço para as subjetividades no telejornalismo. O testemunho de cidadãos anônimos e pessoas famosas ganhou protagonismo. Tais estratégias de aproximação com as audiências e de identificação com o outro virtualizaram afetos, geraram empatia e fomentaram solidariedade às vítimas da doença, aos seus familiares e às comunidades vulneráveis. Porém, as enunciações do Fantástico também acentuaram a relevância do jornalismo no combate às informações falsas. Essa nova forma de fazer reportagens e matérias, de representar a realidade e a população brasileira e de engajar os espectadores legitimou o poder do telejornalismo como ator relevante nas disputas políticas no país, sinalizando que a televisão ainda exerce centralidade do ambiente convergente e uma expressiva hibridização de gêneros discursivos, dispositivos, plataformas e telas na produção de notícias na atualidade. Os resultados também apontam a necessidade de alargar reflexões do campo do jornalismo sobre o engajamento do público com o conteúdo noticioso, destacando que a emoção ocupa espaço relevante nos relatos jornalísticos televisivos na contemporaneidade.
Uma leitura de Manual de flutuação para amadores, de Marcos Siscar
Authors: Gelmini Juliana Dos Santos
Published: October 2022

O poeta-crítico Marcos Siscar (São Paulo, 1964) ocupa um lugar de des-taque na poesia brasileira contemporânea. Segundo Anitta Costa Malufe, “Siscar é sobretudo um poeta no qual não seria possível separarmos pen- samento e poesia, prática reflexiva e prática de escrita” (2012). O objetivo deste ensaio é propor uma leitura da produção poética e ensaística de Siscar, articulada em torno do discurso de poesia e crise. Para tanto, ana- lisaremos metapoemas selecionados de Manual de flutuação para amadores (7Letras, 2015), que tematizam a problemática da crise e se alimentam dela como potência criativa, além de encarnarem “o estado de crise em sua estruturação, suas configurações, seus ritmos” (Malufe, 2012). Em diálogo com a produção poética referida, tomaremos por base, principal- mente, os pensares críticos de Poesia e crise (Unicamp, 2010) e De volta ao fim: o “fim das vanguardas” como questão da poesia contemporânea (como questão da poesia contemporânea (7Letras, 2016). No que se refere à teoria crítica sobre sua poética, valemo-nos, em especial, dos pensares de Masé Lemos, em Marcos Siscar por Masé Lemos (EdUERJ, 2011), e de Anitta Costa Malufe, no artigo “A poesia-em-crise ou a indecisão da forma”, publicado na revista FronteiraZ, em 2012.
Os ratos de Ernest Lanzer, as pequenas mortes de Felipe Werle: breves anotações sobre neurose obsessiva em Freud e suas possíveis implicações com a literatura
Authors: Gonçalves Fábio Tibúrcio
Published: October 2022

A partir do cruzamento das leituras do romance As pequenas mortes (2013), de autoria do escritor goiano Wesley Peres, com o estudo clínico empreendido por Freud, intitulado “Observações sobre um caso de neurose obsessiva (‘O homem dos ratos’, 1909)”, busca-se uma análise a respeito de como conflitos existenciais relacionados à morte, à sexualidade, ao corpo, à linguagem e à figura do pai, por exemplo, atuam no surgimento de sintomas possíveis de deflagrar um quadro neurótico, um quadro psicótico ou, ainda, instaurar no sujeito uma variedade de sintomas que transitam entre uma estrutura psicopatológica e outra, desafiando a certeza e a definitividade de um diagnóstico. O discurso literário, em especial a narrativa ficcional contemporânea, a exemplo do discurso psicanalítico surgido no início do século XX, pode, sobretudo, fazer repensar categorias e conceitos teóricos, subvertendo, assim, o discurso científico ou clínico pretensamente já consolidado. Assim como a teoria freudiana serviu-se da literatura clássica na construção de seus postulados, a literatura contemporânea em sua vasta incursão pela subjetividade do homem pós-moderno surge como leitura e escuta de determinados sintomas que figuram em verdadeiros, senão intransponíveis, desafios à clínica da contemporaneidade.
Colonialidad del poder y subalternidad: el falso silencio
Authors: Cárcamo-Mansilla Alejandro
Published: October 2022

From subaltern studies, Spivak tells us that subaltern groups do not have enunciative authority. This lack of enunciative authority is due to the existence of unequal social and cultural positions, where only the voice of the one who presents himself as the dominator exists, even if he claims to speak for others. If we consider Spivak's answer to be correct, then why can't the subaltern speak? This is where the proposal from Latin American decolonial thought and Quijano's idea of the coloniality of power becomes interesting. The fact that the subaltern does not possess enunciative authority means that there has been a process that has made them invisible in order to keep them in silence, which is false, since subaltern groups, as subaltern studies have announced, do possess their own spaces, their own voices, their own ways of doing things that the dominated cannot and do not wish to hear or see. Quijano's coloniality of power explains to us, from a general context, what has happened to feel this false silence.
Photoemission-induced atmospheric-pressure DC gas discharge using back-illuminated nano thickness photocathode
Authors: Fitriani Sukma Wahyu , Yajima Hideki , Hatta Akimitsu
Published: October 2022

Photoemission-induced atmospheric-pressure DC gas discharge was successfully generated using a 9 nm gold thin-film deposited on quartz glass as a photocathode which was back-illuminated with UV light at wavelengths of 172 nm (Xe excimer lamp), 254 nm (Hg lamp), and 265 nm (Deep UV-LED). A stable discharge current of more than 30 μA at 1450 V in Ar and 50 μA at 4000 V in air was achieved by using 172 nm while it was limited by the power densities and quantum efficiencies of other UV sources. The optical emission spectroscopy showed emissions from excited species in both Ar and air plasma.
Optimization of Inlet and Exhaust Manifold on a Single Cylinder Diesel Engine to Enhance the Combustion
Authors:   Research Scholar, J.N.T.University Anantapur, Department of Mechanical Engineering, Sri Krishnadevaraya Engineering College, Gooty, Andhra Pradesh, India, Deepthi V. V. Naga , Rajulu Prof. K. Govinda ,   M.Tech, Ph.D, Principal , J.N.T.U.A college of Engineering, Professor of Mechanical Engineering, J.N.T. University Anantapur, Ananthapuramu, Andhra Pradesh, India.
Published: October 2022

In the internal combustion Diesel engines the most important subsystem is Intake manifold and Exhaust manifold. In the intake manifold which supplies fresh air –fuel mixture in to the cylinders where combustion takes place at high temperature and high pressure. After exhaust gases scavenged through valves from the cylinders, these gases past exhaust manifold an outlet, through which the gases flow into exhaust pipes from there to the emission control equipment of engine which consists of catalytic and thermal converters. The development of swirl can be enhanced by re-designing of inlet port of an Engine. There is further development in the swirl due to combustion process to another maximum part way in to the power stroke. Swirl can promotes the combustion process in a better way and causes efficiency increase. Better mixing of air – fuel there is a little bit changing the inlet and exhaust valve. Valve stem diameter is 9.5mm, Inlet valve diameter is 36mm, Exhaust Valve diameter is 28mm by varying the pitch 1.0mm to 2mm and thread depth of cut as 4mm and three thread per inch from this arrangement to investigate the performance by enhancing the swirl of air flow to get betterment in the performance and decrease in emissions in a (DI) direct injection diesel engine with single cylinder when compared with normal engine.
COVID-19 PANDEMIJOS ĮTAKA SVEIKATOS PRIEŽIŪRAI IR JOS KOKYBEI LIGONINĖSE: SISTEMINĖ LITERATŪROS APŽVALGA IR ATVEJO ANALIZĖ
Authors: Janušonis Vinsas , Kasap Gaivilė , Janušonytė Henrieta
Published: October 2022

Sveikatos priežiūros kokybė, ypač ligoninėse – pagrindi­nis sveikatos priežiūros sistemų veiklos tikslas. Jis tampa dar aktualesnis COVID-19 pandemijos metu.

Tyrimo tikslas – apžvelgti, įvertinti ir palyginti sveikatos priežiūros kokybę iki COVID-19 pandemijos ir pande­mijos laikotarpiais ligoninėse.

Atliekant tyrimą, analizuotos įvairių šalių autorių moks­linės publikacijos, apklausti pacientai, gydęsi ikikovidi­niu ir pokovidiniu laikotarpiais ligoninėje. Respondentai vertino sveikatos priežiūros ligoninėje kokybę.

Nustatyta, kad daugelio šalių ligoninėse sveikatos prie­žiūros kokybė COVID-19 pandemijos metu pablogėjo. Pagal kai kuriuos rodiklius sveikatos priežiūros kokybė, pacientų nuomone, kiek pablogėjo ir tirtoje ligoninėje. Absoliuti dauguma pacientų sveikatos priežiūros kokybę tiek ikikovidiniu, tiek COVID-19 pandemijos metu ligo­ninėje vertino gerai ir labai gerai.
MEDICINOS DARBUOTOJŲ PRIEŠINIMOSI E. SVEIKATOS PASLAUGŲ DIEGIMUI IR PLĖTRAI MAŽINIMAS
Authors: Virketis Gintautas , Kazlauskė Gintarė
Published: October 2022

Sveikatos priežiūros organizaciniai pokyčiai neįsivaiz­duojami be e. sveikatos technologinės pažangos. Jie yra sėkmingesni, kai kuo daugiau sveikatos priežiūros spe­cialistų jaučiasi pasiruošę pokyčiams, pripažįsta poky­čio vertę ir kuo mažiau yra besipriešinančių pokyčiams.

Tyrimo tikslas – išanalizuoti stacionarinės asmens svei­katos priežiūros įstaigos (ASPĮ) specialistų požiūrį į prie­šinimąsi mažinančius veiksnius ir priemones, diegiant ir plečiant e. sveikatos paslaugas.

Tyrimo metodika – atliktas kiekybinis tyrimas – anketinė apklausa raštu. Anketa sudaryta atsižvelgiant į moksli­ninkų, nagrinėjusių e. sveikatą, tyrimus. Statistiniai duo­menys apdoroti IBM SPSS 23.0 (Statistical Package for the Social Sciences) programiniu paketu.

Rezultatai. Nustatyta, kad naudojantis e. sveikata yra greitesnis, patogesnis informacijos prieinamumas, jos gavimas. Tyrimų rezultatų gavimas iš laboratorijos tie­siogiai gydančiam gydytojui, kitos informacijos gavimas, jos panaudojimas ir keitimasis mažina priešinimąsi e. sveikatos diegimui.

Aukštąjį universitetinį išsilavinimą turintys specialistai statistiškai reikšmingai dažniau nurodo, kad e. sveikata suteikia galimybę greičiau ir patogiau keistis informa­cija. Jaunesni nei 50 metų specialistai statistiškai dažniau sutinka, kad priešinimąsi e. sveikatos diegimui mažina laiko trumpėjimas popierinės dokumentacijos pildymui.

Pirmos amžiaus grupės respondentai statistiškai reikš­mingai dažniau nurodė, kad sėkmingai e. sveikatos plė­trai labiausiai priimtinas apsikeitimas gerąja praktika. Didžioji dalis darbuotojų, turinčių aukštąjį universitetinį išsilavinimą, ir vadovai statistiškai reikšmingai dažniau nurodė, kad darbuotojų kvalifikacijos tobulinimas, sklan­dus informacinių technologijų infrastruktūros diegimas yra reikšmingos priemonės sėkmingai e. sveikatos sis­temos plėtrai.

Išvados. Informacinių technologijų panaudojimas ir plėtra e. sveikatoje yra reikšmingas veiksnys plėtojant moks­linius tyrimus ir gerinant sveikatos priežiūros paslaugų kokybę. E. sveikatos diegimas ir plėtra sveikatos prie­žiūros specialistų suvokiama kaip teigiamas ir naudingas pokytis. Tyrimo metu nustatyti veiksniai, mažinantys priešinimąsi e. sveikatos sistemos diegimui ir plėtrai: greitesnis, patogesnis informacijos prieinamumas, jos gavimas, panaudojimas ir keitimasis, tiesioginis tyrimų rezultatų gavimas iš laboratorijos gydančiam gydytojui. Priemonės, mažinančios priešinimąsi: apsikeitimas gerąja praktika, darbuotojų kvalifikacijos tobulinimas ir sklan­dus informacinių technologijų infrastruktūros diegimas.
KAIRIOSIOS KRŪTIES RADIOTERAPIJA, TAIKANT KVĖPAVIMO KONTROLĘ: PRADINĖ PATIRTIS KLAIPĖDOS UNIVERSITETINĖJE LIGONINĖJE
Authors: Plieskienė Aista , Krauleidis Aurimas
Published: October 2022

Ilgametė perspektyvi stebėsena įrodė, kad konvencinė kairiosios krūties radioterapija didina širdies ligų riziką. Nuo individualios pacientės anatomijos priklauso, kiek priekinės širdies sienos ir kairiosios vainikinės arterijos priekinės tarpskilvelinės šakos radioterapijos metu pa­tenka į švitinimo lauką, atliekant įprastinę konforminę 3D radioterapiją.

Tyrimo tikslas − įvertinti dozes kritiniams organams, skiriant šiuolaikinę radioterapiją kairiosios krūties vė­žio gydymui kvėpavimo kontrolės metodu, kai radiote­rapijos procedūra atliekama giliai įkvėpus, bei palyginti rezultatus su gautais atliekant konvencinę radioterapijos procedūrą.

Retrospektyviai išanalizuoti 50 atsitiktinai atrinktų kai­riosios krūties radioterapijos planų, įvertintos dozės kri­tiniams organams: vidutinė dozė širdžiai (D mean), di­džiausia ir vidutinė dozė kairiosios vainikinės arterijos priekinei tarpskilvelinei šakai (D mean ir D max).

Klaipėdos universitetinėje ligoninėje kairiosios krūties radioterapijos planai retrospektyviai randomizuotai ana­lizuojami nuo 2016 metų. Nuo 2021 m. į onkologinės radioterapijos praktiką įdiegus naujausią 4D švitinimo metodiką pasitelkiant kvėpavimo kontrolę, buvo išanali­zuoti radioterapijos skyriaus pirmo pusmečio rezultatai. Atlikta retrospektyvi nauju metodu švitintų pacienčių dėl kairiosios krūties vėžio analizė, pasitelkiant gilaus įkvė­pimo metodą. Nustatyta, kad vidutinė dozė širdžiai (D mean) sumažėjo nuo 1,88 iki 1,24 Gy (34 proc.), o nuo 9,64 iki 3,81 Gy (60 proc.) sumažėjo D mean kairiosios vainikinės arterijos priekinei tarpskilvelinei šakai.

Tyrimo rezultatai parodė, kad, suskirsčius pacientes į dvi grupes pagal švitinimo tūrį (I gr. švitinta krūtis, II gr. švitinta krūtis ir sritiniai limfmazgiai), dozė kairiosios vainikinės arterijos priekinei tarpskilvelinei šakai buvo kiek didesnė švitinant ir sritinius limfmazgius, nors vi­dutinė dozė širdžiai patikimai nesiskyrė.

Išvada. Dozės kritiniams organams, švitinant kairiosios krūties vėžį kvėpavimo sulaikymo giliai įkvėpus metodu, yra mažos ir kliniškai spindulinių reakcijų arba koronari­nės širdies ligos išsivystymui nėra reikšmingos. Švitinant kairiąją krūtį su sritiniais limfmazgiais, dozė kairiosios vainikinės arterijos priekinei tarpskilvelinei šakai gali būti didesnė. Siekiant ją sumažinti, individualiais atvejais reikia spręsti dėl sudėtingesnio radioterapijos planavimo metodo, pasirenkant moduliuojamo intensyvumo radi­oterapijos metodus (IMRT/VMAT).
INDOCIANO ŽALIOJO FLUORESCENCIJA KOLOPROKTOLOGIJOJE. METODO APŽVALGA IR PIRMOSIOS PATIRTIES KLAIPĖDOS UNIVERSITETINĖJE LIGONINĖJE PRISTATYMAS
Authors: Tamošiūnas Albinas , Aliošin Oleg , Šlepavičius Algirdas , Samalavičius Narimantas Evaldas
Published: October 2022

Indociano žaliojo fluorescencija domina įvairių sričių chirurgus kaip galimybė tiksliau operacijos metu įvertinti kraujotaką bei rasti sarginius limfmazgius. Kolorektalinių pacientų sarginių limfmazgių paieška kol kas naudotina tik mokslinių studijų rėmuose, nes optimali metodika nenustatyta ir reikšmė dar nežinoma. Tuo tarpu kraujo­takos vertinimas atrodo gana perspektyviai: skirtingos metaanalizės rodo patikimai sumažėjusią anastomozės nesandarumo (OR 0,39 – 0,452; p<0,00001) ir bendrų komplikacijų (OR 0,46 – 0,747- 0,77; p < 0.001) riziką. Klaipėdos universitetinėje ligoninėje yra atliktos 8 ope­racijos su indociano žaliojo fluorescencija, rezekcijos linijos nekoreguotos. Vienam pacientui išsivystė anas­tomozės nesandarumas.
SKYDLIAUKĖS OPERACIJŲ DINAMIKA COVID-19 PANDEMIJOS LAIKOTARPIU
Authors: Eismontas Vitalijus , Pangonis Arūnas , Nutautienė Vitalija , Aliošin Oleg , Punys Vytenis , Martinkėnas Arvydas , Samalavičius Narimantas Evaldas , Janušonis Vinsas
Published: October 2022

Žinoma, kad COVID-19 pandemijos laikotarpiu kai kurių operacijų skaičius sumažėjo apie 30 procentų. Klinikinėje praktikoje dažnai pastebima šiuo laikotarpiu užleisto, pažengusio, išplitusio vėžio atvejų. Šio tyrimo metu norėjome išsiaiškinti, kokią įtaką skydliaukės chirurgijai turėjo COVID-19 pandemijos laikotarpis.

Nagrinėti pacientų, operuotų dėl skydliaukės patologijos, duomenys ikikovidiniu ir COVID-19 pandemijos laikotarpiu.

Nustatyta, kad COVID-19 laikotarpiu dėl skydliaukės patologijos operuota 46 proc. mažiau pacientų. Operacijos laukimo laikas ir nustatyto skydliaukės vėžio atvejų skaičius šiuo laikotarpiu, lyginant su iki kovidiniu laikotarpiu, išliko labai panašus.
ATSPARUMO NELAIMĖMS DIDINIMO GALIMYBĖS ASMENS SVEIKATOS PRIEŽIŪROS ĮSTAIGŲ KONTEKSTE
Authors: Paulikienė Birutė
Published: October 2022

Straipsnyje plėtojama nelaimėms atsparios asmens svei­katos priežiūros įstaigos koncepcija. Sisteminės ir lygi­namosios mokslinės literatūros turinio analizės metodų pagalba siekiama atskleisti mokslinėje literatūroje var­tojamą nelaimėms atsparios asmens sveikatos priežiūros įstaigos sampratą bei identifikuoti atsparumą didinan­čias priemones. Ligoninių atsparumas vertinamas kaip dvejopas gebėjimas: išlaikyti funkcionalumą ir atkurti pajėgumus po ekstremalaus įvykio sukeltų nuostolių. Nustatyta, kad asmens sveikatos priežiūros įstaigų atspa­rumo didinimo priemonės taikytinos visiems sveikatos sistemos elementams (lyderystei ir valdymui, sveikatos priežiūros darbuotojams, sveikatos informacinei siste­mai, medicinos produktams ir technologijoms, paslaugų teikimui bei finansavimui). Konkrečiai su sveikatos prie­žiūros paslaugų specifika susijusios reikšmingos prie­monės yra gelbėjimo vietoje įranga, plano turėjimas ir vykdymas, kompleksinių priežiūros poreikių turinčių pacientų gabenimo įranga, vaistų valdymo strategijos, skubiosios medicinos pagalbos sąlygos, nelaimių komite­tas, pagrindinių vaistų atsargų tipai ir kiekiai, skubiosios pagalbos lovų padidinimo pajėgumai, gerai išplėtoti ir lengvai keičiami pacientų priežiūros protokolai, lanksčios elektroninių sveikatos įrašų sistemos, skirtingų ligoninių koordinavimo bei tarpusavio sąveikos sistemos, tvirtų tiekimo grandinių suformavimas. Esminis vaidmuo ne­laimių atvejais tenka žmogiškajam veiksniui.
VAISIAUS BŪKLĖS STEBĖJIMAS GIMDYMO METU: KLINIKINĖ PRAKTIKA
Authors: Rovas Linas
Published: October 2022

Kardiotokografija (KTG ) − vaisiaus širdies ritmo užra­šymas ir interpretavimas vis dar išlieka iššūkiu akuše­riams ginekologams ir akušeriams. Vaisiaus fiziologijos supratimas ir KTG vertinimas, pagrįstas vaisiaus fizio­logijos ir patofiziologijos supratimu, leistų geriau inter­pretuoti KTG pakitimus ir priimti teisingus sprendimus. Skiriant gimdyvei infuzo- ar deguonies terapiją, reikėtų atidžiau vertinti šių vaisiaus būklės gerinimo metodų reikalingumą esamuoju momentu. Sistemingi teoriniai ir praktiniai KTG interpretavimo mokymai duoda gerus rezultatus, gerinant perinatalinę priežiūrą. Būtų teisinga atsisakyti šarmų pusiausvyros ir laktatų kiekio tyrimo vaisiaus pirmeigos gimdymo metu.
“USE OF MULTIPARAMETRIC-MRI WITH PIRADS IN EVALUATION OF PROSTATIC DISORDERS IN CORRELATION WITH CLINICAL OUTCOME "
Authors: Gafoor J. Abdul , Radharani Radharani , Suresh B. , Harinath D. , Saman Ravi Kumar
Published: October 2022

use of multiparametric-MRI with PI-RADS in evaluation of prostatic disorders in correlation with clinical outcome is
showing more accurate outcome in term of accurate diagnosis, localization of lesion with help of sector map anatomy,
risk stratification and Ca prostate staging. There is new opportunity is open for focal biopsy and treatment of prostate
cancer. We are using combination of diagnostic MRI with follow up till curative treatment in the combination of STIR
sequence for better outcome with diffusion weighted MRI, T2-weighted imaging, dynamic contrast-enhanced imaging
and MR spectroscopy in mp-MRI assessment of prostate cancer. DWI and T2W imaging with help of blood PSA level is
mainstay for diagnosis of prostate cancer in this study. We are using 1,5 Tesla MRI Machine.as we know that assessment
on Multiparametric-MRI is subjective so use of the newly developed standardized reporting Prostate Imaging and
Reporting Archiving Data System scoring system and knowledge about prostate pathology is helpful for accurate
interpretation of prostate pathology. This study is focus on clinical outcome with the help diagnostic mp-MRI.
TO STUDY THE CLINICAL ,AUDIOLOGICAL AND RADIOLOGICAL FINDINGS OF HEARING IMPAIRED INFANTS.MY EXPERIENCE
Authors: Makhdoomi Owais , Makhdoomi Huzaifa
Published: October 2022

Hearing impairment is the most common form of sensory disorder in humans.Audiological profile of neonates born at a
tertiary care centre in Kashmir was conducted to calculate the prevalence of hearing impairment in the study population.
Out of 1800 neonates 962 (53.4%) were females rest being males with a sex ratio of 1.15:1.On initial screening 91.2%
(n=1642) of subjects had bilaterally present OAE (B/L PASS).The prevalence of hearing loss in not at risk was 2.97 per
1000 and in high risk was 8.04 per 1000.The combined overall prevalence was found to be 4.07 per 1000.Radiological
imaging was the next mode of evaluation in these subjects and included HRCT temporal bone and MRI brain and inner
ear.
A RARE CASE OF DORV IN ADULTHOOD
Authors: Patel Vivek , Rajge Harshad , Bhate Archana , Moulick N.D. , Sashindran V. K. , Shah Pranjal , Gandavarapu Sravanth
Published: October 2022

Background: Double outlet right ventricle (DORV) is a rare cardiac malformation in children and even more rare when it
comes to adulthood. Clinical Presentation: We report a boy with DORV with Mitral atresia and hypoplastic Left
Ventricle who presented to us with breathlessness on climbing 2 flight of stairs at the age of 22 years.He was not seriously
limited when he came to our hospital with complaint of breathlessness on exertion. The mother first noticed him getting
breathless on climbing 2 flight of stairs at 5 years of age.The patient had history of recurrent infections in the past with
failure to gain weight since childhood.On Examination the Pulse was 90 beats per minute,Spo2 was 85% on Room Air in
all four limbs, BP was 90/60 mmhg, no tachypnea.There was Grade 2 clubbing present with cyanosis on the nails of all
four limbs. Patient had cleft lip and cleft palate with pes cavus in left foot. On inspection, precordial bulge seen on left
side with bony cage deformity and apex impulse in left 5th intercostal space lateral to midclavicular line and visible
pulsations in 3rd intercostal space. On palpation, Diastolic thrill present in 2nd left intercostal space with grade 3
parasternal heave. On Auscultation, Grade 3/6 loud harsh diastolic murmur heard over the left precordium and
interscapular and infrascapular area with diaphragm of stethoscope in supine position.Soft high pitched early diastolic
murmur heard best at left upper sternal border and increased during inspiration. 2D echo suggestive of Double outlet
Right ventricle with mitral atresia with hypoplastic left ventricle with pulmonary arterial hypertension and severe
pulmonary regurgitation. Discussion: To our knowledge very few cases of DORV survives upto this age without any
serious limitation that have been reported.DORV if diagnosed early and operated between the age of 1 year to 3 years
have satisfactory results. Some cases that remain asymptomatic or are diagnosed late leads to development of
pulmonary hypertension which makes them poor candidates of surgery.It was surprising as this patient have survived
till now without any serious limitation or symptoms.
BASAL CELL CARCINOMA: REVIEW
Authors: Lizbeth Maritza Montes de Oca Gavilánez , Maiwa Jessica Chela Tualombo , María Alexandra Montesdeoca Fiallos , Víctor Manuel Pérez Rumipamba , Diego Fernando Torres Pareja , María Celeste Vizueta Bustamante
Published: October 2022

Basal cell carcinoma (BCC) is a common,locally invasive, keratinocytecancer (also known as nonmelanoma cancer).It is
the most common form of skin cancer.BCC is also known as rodent ulcer and basalioma.Patients with BCC often develop
multiple primary tumours over time.
HUMOR IN DISABILITIES AND IMPAIRMENTS
Authors: Venkatesan S.
Published: October 2022

The theme of comedy, humor, laughter, and disability has a long, complex, and uneasy relationship. There are many
jokes, narratives, images, and limericks that denigrate the disabled. Sometimes, the affected people have themselves
taken to humor for showcasing their experiences, constructing or deconstructing the several stereotypes that are held
by unaffected people.Many disability conditions ranging from sensory,physical,and developmental are misunderstood
or doubted whether these persons are capable of understanding or producing humor at all.This thematic review covers
a bibliography of nearly 75 peer-reviewed published research papers on humor in disability. The coverage extends
from the 1980s when deaf humor vis-a-vis sign language was the focus, change in the 1990s to doubts about whether
disability conditions like autism are capable of humor production or appreciation at all. The narration concludes that
disability humor needs to be further explored as a therapeutic device to debunk stereotypes or stigma and ameliorate
the well-being and quality of life of the affected people,their carers as well as professionals working with them.
BITCOIN: A BLESSING OR A CURSE?
Authors: Modi Soham
Published: October 2022

Some concepts become economically relevant as new technologies emerge, as is the case with cryptocurrencies in
general, or Bitcoin and Ethereum in particular. Because of the importance of these tools, a thorough bibliometric study
that allows us to obtain all information about cryptocurrencies is required. This study will aid related research that has
been and is currently being conducted. The bibliometric analysis includes 11 articles that highlight the most related
papers, research fields, countries, organizations, authors, publications, and trends over the last few years. Finally, the
number of papers published has increased over the last three years. The analysis depicts the evolution of block chain
technology, which is used in this type of crypto currency. And finally, will help the reader to find the answer for the
research Question.