bluuebunny/crossref_metadata_2025 huggingface dataset:
“SOMOS DESCENDENTES!” − CONTRANARRATIVAS E AGENCIAMENTOS MUSICAIS DOS COLETIVOS DE TCHABETA NA ROÇA AGOSTINHO NETO (SÃO TOMÉ E PRÍNCIPE)
Authors: Semedo Carla Indira Carvalho
Published: March 2021

Resumo Cabo Verde, localizado na costa ocidental da África, é reconhecido como país marcadamente migratório. Entre vários destinos das pessoas cabo-verdianas, a experiência migratória em São Tomé e Príncipe foi concebida e narrada como o retrato da “pior migração” cabo-verdiana, por reverberar a experimentação da escravidão e reforçar uma negritude renegada. À luz da forma como a prática musicocoreográfica tchabeta aparece mobilizada no quotidiano das pessoas cabo-verdianas e os descendentes em São Tomé e Príncipe, as musicalidades constituem um mecanismo de reterritorialização e criação de um território existencial no arquipélago santomense. O que está em jogo é uma reatualização dos vários cristais de tempo: um batuko reprimido e silenciado do tempo colonial/do branco para um tchabeta que permite outros espaços e outros modos existenciais no território santomense.
Liquid Democracy: An Algorithmic Perspective
Authors: Kahng Anson , Mackenzie Simon , Procaccia Ariel
Published: March 2021

We study liquid democracy, a collective decision making paradigm that allows voters to transitively delegate their votes, through an algorithmic lens. In our model, there are two alternatives, one correct and one incorrect, and we are interested in the probability that the majority opinion is correct. Our main question is whether there exist delegation mechanisms that are guaranteed to outperform direct voting, in the sense of being always at least as likely, and sometimes more likely, to make a correct decision. Even though we assume that voters can only delegate their votes to better-informed voters, we show that local delegation mechanisms, which only take the local neighborhood of each voter as input (and, arguably, capture the spirit of liquid democracy), cannot provide the foregoing guarantee. By contrast, we design a non-local delegation mechanism that does provably outperform direct voting under mild assumptions about voters.
Persistencia de impulsividad en adolescente con Trastorno Límite de Personalidad
Authors: Rangel Andrea
Published: March 2021

La adolescencia es un período de tránsito y cambios en donde los rasgos de personalidad límite pueden influir en manifestaciones de una enfermedad depresiva. En los adolescentes, pueden presentarse rasgos disfóricos y extrema sensibilidad al rechazo, lo que a veces culmina en autolesión e impulsividad. Los comportamientos irreflexivos y explosivos forman parte de un grupo de actos impulsivos cuyo fin consiste en elegir respuestas inmediatas y cortas sin importar que sean menos gratificantes, lo cual en la adolescencia representa alto riesgo para el suicidio La patogénesis del Trastorno Límite de personalidad (TLP) implica interacciones entre factores genéticos, biológicos y ambientales, lo que resulta en fluctuaciones del estado de ánimo, impulsividad y disfunciones cognitivas. Se presenta el caso de una adolescente con trastorno depresivo mayor y TLP, quien luego de numerosos esquemas terapéuticos no exitosos incluyendo Inhibidores Selectivos de la Recaptura de Serotonina (ISRS), antipsicóticos y estabilizadores del estado de ánimo, obtiene mejoría tras la medicación con amitriptilina, un antidepresivo tricíclico. No existe un fármaco específico para el tratamiento. La naturaleza multidimensional de los factores involucrados hace que el manejo farmacológico sea complejo. El tratamiento psicoterapéutico se hace indispensable para modular algunos síntomas.
Nemesnyár klónok faanyagtani jellemzőkhöz köthető génjeinek genetikai változatossága
Authors: Cseke Klára , Köbölkuti Zoltán Attila , Benke Attila , Rumi Andrea , Báder Mátyás , Borovics Attila , Németh Róbert
Published: March 2021

A nemesnyárak kiemelkedő gazdasági jelentőséggel bírnak. A bemutatott vizsgálat legfőbb célja egy olyan kutatási metodika ismertetése, amely a faanyag tulajdonságaiért felelős kulcsenzimek kódoló régióinak azonosításából indul ki, bemutatva a genomikai alapokra helyezett nemesítési technológiákban rejlő lehetőségeket. A vizsgálatunk első szakaszában 24 különböző, a faanyagképződés szempontjából releváns enzim kódoló régiójára terveztünk primerpárokat. Összesen 55 saját fejlesztésű primerpárt teszteltünk, 47,27%-os sikerességgel. Ezután nyolc enzimet választottunk ki részletesebb elemzésre hét nyárfaj és 11 hibrid klón bevonásával, összesen 23 nyár genotípus vizsgálata révén. A kiválasztott enzimek egy része a lignifikáció folyamatában vesz részt (COMT, CCoAOMT, SAMS), egy másik csoport a K+-függő xylogenezis során tölt be kulcsszerepet (Kt, ptk2, SKOR), míg a harmadik csoport (endo-1,4-b-xylanase, Araf-ase) a mikrofibrilla szög alakulásához köthető. A sikeresen amplifikált és azonosított 13 markerrégió révén összesen 188 szekvenciát elemeztünk és 90 SNP-t azonosítottunk. Értékeltük a polimorf helyek számát, a nukleotid diverzitást, az inszerciók/deléciók számát, az SNP-k típusát, a rekombinációs események minimális számát, illetve azonosítottuk a konzervatív szakaszokat. Eredményeink bemutatása során részletesen tárgyaljuk a vizsgálatban rejlő alkalmazási lehetőségeket.
Faanyagok hővezetési tulajdonságainak változása a termikus kezelés hatására
Authors: Börcsök Zoltán , Pásztory Zoltán
Published: March 2021

Kutatásunk célja a különböző időtartamú hőkezelés és néhány fizikai, valamint a hővezetési tulajdonságok közötti összefüggések detektálása. A vizsgálatok során lucfenyő (Picea abies), Pannónia nyár (Populus × euramericana cv. Pannónia) és gumifa (Hevea brasiliensis) faanyagot 180 °C-on 15, 25 és 35 órás hőkezelésnek vetettünk alá. Méréseink igazolták, hogy a hőkezelt anyagból készült próbatestek egyensúlyi fanedvessége, sűrűsége és hővezetési tényezője alacsonyabb, mint a kezeletlen mintadaraboké. Az átlagos nettó egyensúlyi nedvességtartalom a kezdeti 12% körüli értékről mind a három fafaj, mindhárom kezelési idejében 6% körüli értékre csökkent. A sűrűség csökkenése 15, 25, illetve 35 órányi kezelés után nyár esetében rendre 9,1, 12,1, illetve 13,4%, lucnál 5,2, 7,6 és 8,7%, gumifánál pedig 3,5, 5,1 és 7,1%. A sűrűség csökkenése 15, 25, illetve 35 órányi kezelés után nyár esetében rendre 17,0, 24,2, 25,2%, lucnál; 8,5, 11,6, 19,2%, gumifánál pedig 3,6, 4,1, és 8,0%. Irodalmi adatokkal alátámasztható, hogy a hőkezelés által a faanyag egyensúlyi fanedvessége és sűrűsége csökken, mely magyarázza az alacsonyabb hővezetési tényezőt az azonos alapanyagból készült kontroll mintadarabhoz képest.
A Roth-féle szálaló erdő arachnológiai vizsgálata
Authors: Bali László , Tuba Katalin , Szinetár Csaba
Published: March 2021

Kutatásunk során a Roth-féle szálaló erdő (Sopron 182B) talajfelszíni pókfaunáját vizsgáltuk talajcsapdázással, a 2020-as évben, április és július hónapok között. A vizsgálati terület öt, egymástól állományszerkezetében jól elkülöníthető foltjáról (nyílt élőhely [lék], rudas-, szálas-, lábas- és fenyőelegyes állományok), valamint három, az erdőrészlettel határos kontrollterületről gyűjtöttünk adatokat, beleértve állományszerkezeti vizsgálatok végzését is. A felmérés során összesen 21 család 69 fajának 3515 egyedét csapdáztuk. A legnagyobb fajszámú családnak a Vitorláspókfélék (Linyphiidae) bizonyultak. A legnagyobb egyedszámban pedig a sárgafoltos gyászfarkaspókot (Pardosa alacris) gyűjtöttük. A vizsgált pókegyüttesek viszonylag magas fajdiverzitást mutattak. Az egyes élőhelyek közösségei mind vadászati stratégiák, mind a hasonlósági indexek alapján valamelyest elkülönültek egymástól, ugyanakkor szignifikáns különbség nem volt felfedezhető közöttük. Összességében a Roth-féle szálaló erdő talajfelszín-közeli pókközössége gazdagabbnak mutatkozott a szomszédos kontrollterületekéinél.
cchsflow: an open science approach to transform and combine population health surveys
Authors: Yusuf Warsame , Vyuha Rostyslav , Bennett Carol , Sequeira Yulric , Maskerine Courtney , Manuel Douglas G.
Published: March 2021

Setting

The Canadian Community Health Survey (CCHS) is one of the world’s largest ongoing cross-sectional population health surveys, with over 130,000 respondents every two years or over 1.1 million respondents since its inception in 2001. While the survey remains relatively consistent over the years, there are differences between cycles that pose a challenge to analyze the survey over time.

Intervention

A program package calledcchsflowwas developed to transform and harmonize CCHS variables to consistent formats across multiple survey cycles. An open science approach was used to maintain transparency, reproducibility and collaboration.

Outcomes

ThecchsflowR package uses CCHS survey data between 2001 and 2014. Worksheets were created that identify variables, their names in previous cycles, their category structure, and their final variable names. These worksheets were then used to recode variables in each CCHS cycle into consistently named and labelled variables. Following, survey cycles can be combined. The package was then added as a GitHub repository to encourage collaboration with other researchers.

Implication

Thecchsflowpackage has been added to the Comprehensive R Archive Network (CRAN) and contains support for over 160 CCHS variables, generating a combined data set of over 1 million respondents. By implementing open science practices,cchsflowaims to minimize the amount of time needed to clean and prepare data for the many CCHS users across Canada.
Socio-demographic disparities in knowledge, practices, and ability to comply with COVID-19 public health measures in Canada
Authors: Brankston Gabrielle , Merkley Eric , Fisman David N. , Tuite Ashleigh R. , Poljak Zvonimir , Loewen Peter J. , Greer Amy L.
Published: March 2021

Objectives

The effectiveness of public health interventions for mitigation of the COVID-19 pandemic depends on individual attitudes, compliance, and the level of support available to allow for compliance with these measures. The aim of this study was to describe attitudes and behaviours towards the Canadian COVID-19 public health response, and identify risk-modifying behaviours based on socio-demographic characteristics.

Methods

A cross-sectional online survey was administered in May 2020 to members of a paid panel representative of the Canadian population by age, gender, official language, and region of residence. A total of 4981 respondents provided responses for indicators of self-reported risk perceptions, attitudes, and behaviours towards COVID-19 public health measures.

Results

More than 90% of respondents reported confidence in the ability to comply with a variety of public health measures. However, only 51% reported preparedness for illness in terms of expectation to work if sick or access to paid sick days. Risk perceptions, attitudes, and behaviours varied by demographic variables. Men, younger age groups, and those in the paid workforce were less likely to consider public health measures to be effective, and had less confidence in their ability to comply. Approximately 80% of respondents reported that parents provided childcare and 52% reported that parents in the workforce provided childcare while schools were closed.

Conclusion

Policies to help address issues of public adherence include targeted messaging for men and younger age groups, social supports for those who need to self-isolate, changes in workplace policies to discourage presenteeism, and provincially co-ordinated masking and safe school policies.
Physiotherapy and Rehabilitation Management of Musculoskeletal and Respiratory impairments in Long COVID cases in Bangladesh v1
Authors: not provided anwar_physiobd , Iqbal Kabir Jahid Dr , M Amran Hossain K , Md Shahoriar Ahmed Physiotherapist , Shafin Rubayet
Published: March 2021

Executive summary: The first confirmed case of COVID 19 in Bangladesh was on 8th March 2020, then it subsequently rises and makes the government worried as well as for mass people of the country. Within 9th March it reaches 100 and exceeded 200 cases within next two days. Almost every country taken therapeutic and nontherapeutic measures to control the devastating situation of SARS-CoV where in Bangladesh there is an ongoing debate whether the measures have been adopted adequately or efficiently. It seems government did not impose any strict rules and the mass people also seem not too serious to maintain just a simple rule of wearing a Musk, which seems fancy and impractical to them. However, the consequences of the impact of SARS CoVwas frustrating, until today confirmed case was 371631, death case 5405, recovered 284833 and in Isolation 81393 (evident from corona.gov.bd).Developed countries investing a lot in research to discover the vaccine that can fight SARS CoV. Health care professionals with adequate training act as frontline fighters for SARS-CoV where all over the globe Rehabilitation professionals act as crucial health care providers for post-COVID patients. For instance, our research has four phases where phase one is completed and phase two is under process. For now, we aimed to complete our phase three and four. Phase Three aim: Identify the Functioning, disability, and other indicators of COVID-19 positive patients after recovery. and Phase four aim: evaluate the impact of physiotherapy and rehabilitation among the recovered COVID-19 patients.
Institutionalized elderly: vulnerabilities and strategies to cope with Covid-19 in Brazil
Authors: De Araújo Pricila Oliveira , Guimarães Silva Freitas Maria Yaná , Carvalho Evanilda Souza de Santana , Peixoto Thaís Moreira , Silva Servo Maria Lúcia , Santana Laiane da Silva , Dos Santos Silva Juliana Macêdo , Vieira Moura Jenny Caroline
Published: March 2021

This article presents a systematized reflection and discussion around two guiding axes: the first discusses aging and vulnerabilities to biological, physical, cognitive, social and affective losses that require specific attention, as well as vulnerabilities to COVID-19 to which institutionalized elderly people are exposed; the second, we reflect on the adoption of restrictive and protective measures to prevent the spread of the virus, aiming to keep the elder health and mitigate the effects of the pandemic. The conclusion is that the pandemic has increased the many vulnerabilities to which institutionalized older people were already exposed, adding vulnerability to a new disease, such as COVID-19, due to its high lethality and comorbidity, aggravated by precariousness of long-term Brazilian institutions due to the negligence of public authorities, civil society, the management of the institution and the families of the patients. The post-pandemic scenario will require collective efforts to protect and ensure the survival of the elderly living in those residences.
COVID-19 Pandemic: Experiences of People with Visual Impairment
Authors: Oviedo-Cáceres María del Pilar , Arias-Pineda Karen Natalia , Yepes-Camacho María del Rosario , Montoya Falla Patricia
Published: March 2021

Objective. To understand changes in daily life emerging from the COVID-19 Pandemic in people with visual impairment from four cities of Colombia.

Methods. Exploratory-type, descriptive qualitative study. The study conducted 26 semi-structured interviews via telephone. The analysis process used the methodological design from the approach proposed by Taylor and Bogdan: following the discovery process, coding and relativizing of data.

Results. Three categories emerge: 1) Transformations in daily dynamics, 2) Barriers to mobility, and 3) Use of technology.

Conclusion. People with visual impairment report barriers to mobility to take public transportation, which can affect maintenance of their autonomy and independence. Using technological tools is identified as facilitators for the continuity of educational and work activities; however, some did not have computer literacy or the basic inputs for connectivity. Difficulties were identified to continue work activities and maintain income.
EVIDENCE OF THE BACTERIAL NATURE OF THE WENDOMAN ORGANISMS NEMIANA SIMPLEX
Authors: Reshetnyk M. , Gritsenko V. , Martyshyn A.
Published: March 2021

Nemiana simplex were found in Vendian deposits of Transnistria a hundred years ago. They are present in layers with determined age of 557 million. There are fourteen places with such fossils in the world. Nemiana simplex are the markers of all deposits of the Yampilian layers of the Vendian. We need to take a closer look at the Nemiana simplex analysis, as their exact nature has not been determined so far. They were considered to be raindrops, jellyfish or polyps, which is not justified. The large fluctuations in their size, and the peculiarities of their location relative to each other, indicate their biological nature. Usually, these fossils have the appearance of convex lenticular projections on the lower surfaces of sandstone layers 1-40 mm in size. They do not have any signs of the mouth opening and any other structural elements of the intestinal cavity. There are similar Nemiana prints of Beltanella and Beltanelliformis. Beltanelliformis has recently been recognized as "benthic colonies of cyanobacteria" by organic petrified films, sometimes preserved on their prints. Nemiana's prints do not contain such petrified films on the surface of the nuclei, so one cannot ascertain from biochemical analysis what they were during lifetime. Nemiana is not similar to Beltanelliformis: the distinctive features of Beltanelliformis are the absence of pronounced convex casts and concentric folds along the contour of flat prints. Although there are differences in the shape of the prints, Beltanelliformis and Nemiana are the most similar among the Vendian fossils. Given that Beltanelliformis are reflections of cyanodacetrians, we can assume that Nemiana is also a cyanobacterium. The print sizes of Nemiana simplex Palij are close to the size of modern spherical colonies of cyanobacteria Nostoc prunum. Large colonies of modern Nostoc prunum are often surrounded by smaller colonies, and in Nemiana simplex prints large prints together with smaller ones create a "cluster". Such clusters consist of entire "settlements". Nostoc colonies can appear very close to the main colony, creating "kidneys", with Nemiana simplex prints showing such "buds". Colonies of Nostoc cyanobacteria are widespread in fresh water, less often in the seas; Nemiana is found in deposits of huge deltas, that is, also in significantly desalinated seawater. It is likely that such Nostoc forms existed earlier than 550 million years ago and are still preserved in the Nemiana simplex prints on the Yampilian sandstones. Nemiana simplex prints are found on all modern continents, which indicates the conjugacy of the sea basins and the homogeneous climatic conditions on the planet during the Upper Vendee. The restoration of "settlements" of Nemiana simplex, which were systematically covered with sandy sediments, indicates their high ability to survive and the variability of reproduction.
ELECTRO-OSMOTIC FRACTIONATION OF HYDROGEN ISOTOPES IN ELECTROLYTIC SOLUTIONS USING COMPOSITE PROTON-PERMEABLE MEMBRANES
Authors: Pushkar'ov O. , Zubko A. , Sevruk I. , Dolin V.
Published: March 2021

Based on the analysis of the features of electroosmotic processes that are implemented in proton-conducting membranes, the possibility of fractioning hydrogen isotopes in electrolytes formed using tritiated water (HTO) is estimated. The interaction of the solution with the membranes in their channels leads to polarization and partial dissociation of the electrolyte molecules. In water molecules, when protium is replaced by a heavy isotope of hydrogen, the energy of breaking of hydrogen bonds increases and the process of their dissociation proceeds predominantly according to the scheme: HTO ↔ H+ + TO—. A part of the released protons can join water molecules to form the H3O+ ion. H3O+ and TO— ions are more mobile than other singly charged ions. The main characteristic that determines the suitability of electroosmotic membranes to the fractionation of hydrogen isotopes is proton conductivity. The released protons have anomalously high mobility due to their small size, tunnel and relay movement through hydrogen bonds between adjacent polar groups in the channels of the proton-conducting membranes. To ensure high proton conductivity in the pores and channels of the membranes, modifying substances are fixed, which contain the groups: –ОН- , –NH2, –NH, –SH, –COOH, –SO3H, acid salts and oxides, containing surface proton-conducting groups. To create proton-conducting membranes, it is possible to use surface-modified β-alumina (β-Al2O3(H3O+)) and protonated (H3O+) montmorillonite with ionic conductivity (5х103 – 4х104 Ohm х cm–1). The most effective are surface modifiers with negatively charged sulfonic groups. The imposition of an external electric field leads to the movement of ions in the electrolyte, which leads to a redistribution of the isotope ratio in the near-anode and cathode spaces.
METHODOLOGICAL PRINCIPLES OF GEOPHYSICAL STUDIES OF KARST DANGEROUS TERRITORIES
Authors: Vyzhva S. , Onyshchuk V. , Onyshchuk I. , Reva M. , Shabatura O.
Published: March 2021

The article is devoted to the analysis of the methodological principles of applying geophysical research methods in the study of karst-hazardous territories. The tasks that are posed in specialized studies of karst and geophysical methods for their solution are given. Four stages of specialized studies of karst-hazardous territories are identified: reconnaissance-methodological, prospecting, reconnaissance and monitoring. The set of geophysical methods for the development of these stages are determined.

It is noted that a rational set of geophysical methods in the study of karst processes is determined for each individual natural environment (individual site). The possibility of performing field research by a separate geophysical method in this area, the presence of differentiation in rocks according to their physical properties which are used by a specific geophysical method and economic efficiency of the application of this geophysical method were taken into account.

As an example, some results of geophysical studies carried out in the framework of the Lyubensky field of native sulfur are given.
Magnetic fields in limb solar flares on heights 2–14 Mm
Authors: Lozitsky V. , Yakovkin I. , Kravchenko E.
Published: March 2021

We present the results of observations of two powerful limb solar flares which occured on 17 July 1981 and 14 July 2005. Spectral observations of these flares were carried out with the Echelle spectrograph of the Horizontal Solar Telescope of the Astronomical Observatory of Taras Shevchenko National University of Kyiv. In order to measure the magnetic fields in these flares, I ± V profiles of К СаІІ, HeI 4471.5 and Нα lines were studied. It was found that effective (averaged) magnetic field Вeff in the flares reached 1100–3000 G on heights 2–14 Mm. However, the spectral evidences to yet stronger fields of ~ 104 G range were found. In particular, the weak spectral evidences of large Zeeman splitting were found in first flare by HeI 4471.5 line; this evidences corresponds to superstrong magnetic field of 15.5 kG. In the second flare, Нα line has non-parallelism of bisectors of I ± V profiles which can reflect existence of 1550–3000 G fields in the flare. However, in frame of simple two-component model these observed values can correspond to true local (amplitude) magnetic fields Вmax in range 4.65–18 kG. Apparently, such superstrong magnetic fields arise in structures of a force-free type, with strong twisting of the field lines. It is precisely such field values that are necessary in solar flares for energy reasons. Indeed, solar flares emit energy in the range of 1027-1032 erg in a volume of the order of 1027 cm3. Elementary calculations show that in order to provide such energy in such a volume, the magnetic field strength should be at least 103 G. In addition, if we take into account that solar magnetic fields have the sub-telescopic (spatially unresolved) structure, then the local magnetic field intensities in the flares at the coronal level can be expected even higher.
Impact of the statistical effects on the Hubble constant value obtained from velocities of galaxies
Authors: Parnovsky S.
Published: March 2021

We can obtain the Hubble constant value for the late Universe from the sample of radial velocities of galaxies and independent estimations of distances to them based on any statistical relation such as Cepheid variables, Tully-Fisher relation etc. Usually, the method of least squares is used when processing such data. However, the value of the Hubble constant is somewhat underestimated due to a statistical effect similar to the wellknown Malmquist bias. The main source of underestimation is associated with the deviation of the distances determined from the statistical dependence from their true values. The decrease of obtained Hubble constant value is about 5% for an error in the distance estimation of 20% and about 9% with an error of 30%. This impact cannot explain the recently discovered tensions between the values of Hubble constant obtained from the early and the late Universe. The estimation H0 = 67.4 km/s/Mpc obtained from observations in the recombination era account for about 92% of the average of the estimations based on observations of not very distant objects H0 = 73.3 km/s/ Mpc. Indeed, the described effect leads to underestimation of the largest of these values.
SOLUTE TRANSPORT MODELLING IN LOW-PERMEABILITY HOMOGENEOUS AND SATURATED SOIL MEDIA
Authors: Zaheer Muhammad , Ullah Hadayat , Mashwani Saad Ahmed , ul Haq Ehsan , Ali Shah Syed Husnain , Manzoor Fawaz
Published: March 2021

Fickian and non-Fickian behaviors were often detected for contaminant transport activity owed to the preferential flow and heterogeneity of soil media. Therefore, using diverse methods to measure such composite solute transport in soil media has become an important research topic for solute transport modeling in soil media. In this article, the continuous-time random walk (CTRW) model was applied to illustrate the relative concentration of transport in low-permeability homogeneous and saturated soil media. The solute transport development was also demonstrated with the convection-dispersion equation (CDE) and Two Region Model (TRM) for comparison. CXTFIT 2.1 software was used for CDE and TRM, and CTRW Matlab Toolbox v.3.1 for the CTRW simulation of the breakthrough curve. It was found that higher values of determination coefficient (R2) and lower values of root mean square error (RMSE) concerning the best fits of CDE, TRM, and CTRW. It was found that in the comparison of CDE, TRM, and CTRW, we tend to use CTRW to describe the transport behavior well because there are prevailing Fickian and non-Fickian transport. The CTRW gives better fitting results to the breakthrough curves (BTCs) when β has an increasing pattern towards 2.00. In this study, the variation of parameters in three methods was investigated and results showed that the CTRW modeling approach is more effective to determine non-reactive contaminants concentration in low-permeability soil media at small depths.
THE EFFECT OF PRESSURE DEPRESSION ON THE WATER INFLOW VOLUME TO WELLS WHICH COVER CARBONATE ROCKS IN THE CARPATHIAN FOREDEEP BASEMENT, SE POLAND
Authors: Rzyczniak Mirosław , Solecki Marek L. , Zeljaś Dagmara , Dubiel Stanisław J.
Published: March 2021

This paper presents an analysis of well testing data, performed with a Drill stem test (DST). The carbonate levels of Mesozoic reservoir rocks were investigated in the research area of the Carpathian Foredeep. Based on the results of 17 two-cycle DST reservoir tests, the dependence of the volume of the reservoir water flow rate from the Mesozoic carbonate reservoirs (Upper Jurassic, Lower Cretaceous) to the wells as a function of the mean depression of bottom pressure was researched in the selected oil exploration area in the Carpathian Foredeep basement, SE Poland. Using methods of statistical analysis, a satisfactory correlation between variables for power and the exponential model was found, and a weak correlation for the linear model was found. A decrease in the value of the reservoir water flow rate along with an increase in pressure depression was found for the Mesozoic carbonate reservoirs, which may indicate the occurrence of fractures and micro-fractures shortening under extreme pressure depression and blockage phenomena of fractures and cavernous pores in the perimeter area by solid particles (cuttings, salt, polymers, etc.).
KINEMATIC MODEL OF THE SLOW-MOVING KOSTANJEK LANDSLIDE IN ZAGREB, CROATIA
Authors: Krkač Martin , Bernat Gazibara Sanja , Sečanj Marin , Sinčić Marko , Mihalić Arbanas Snježana
Published: March 2021

The interpretation of landslide kinematics provides important information for those responsible for the management of landslide risk. This paper presents an interpretation of the kinematics of the slow-moving Kostanjek landslide, located in the urbanized area of the city of Zagreb, Croatia. The sliding material (very weak to weak marls, often covered with clayey topsoil) exhibits plastic, rather than rigid behavior. Due to this reason, and low landslide velocities, landslide features, such as main scarps or lateral flanks, are barely noticeable or do not exist in most of the landslide area. The data used for the kinematic interpretation were obtained from 15 GNSS sensors, for the period of 2013-2019. The monitoring data revealed a different spatial and temporal distribution of landslide velocities, resulting as a consequence of geomorphological conditions and forces that govern the landslide movements. Temporally, eight periods of faster movements and seven periods of slower movements were determined. Spatially, velocities measured in the central part of the landslide were higher than on its boundaries. The interpretation of the surface (horizontal and vertical) displacements and the direction of movement reveal a new insight into the engineering geological model and provide important information for the management of the Kostanjek landslide risk.
Seismically Derived Ground Tilts Related to the 2010 Chilean Tsunami
Authors: Chen Jui-Chun Freya , Chi Wu-Cheng , Yang Chu-Fang
Published: March 2021

Developing new ways to observe tsunami contributes to tsunami research. Tidal and deep-ocean gauges are typically used for coastal and offshore observations. Recently, tsunami-induced ground tilts offer a new possibility. The ground tilt signal accompanied by 2010 Mw 8.8 Chilean earthquake were observed at a tiltmeter network in Japan. However, tiltmeter stations are usually not as widely installed as broadband seismometers in other countries. Here, we studied broadband seismic records from Japan’s F-net and found ground tilt signals consistent with previously published tiltmeter dataset for this particular tsunamic event. Similar waveforms can also be found in broadband seismic networks in other countries, such as Taiwan, as well as an ocean-bottom seismometer. We documented a consistent time sequence of evolving back-azimuth directions of the tsunami waves at different stages of tsunami propagation through beamforming-frequency–wavenumber analysis and particle-motion analysis; the outcomes are consistent with the tsunami propagation model provided by the Pacific Tsunami Warning Center. These results shown that dense broadband seismic networks can provide a useful complementary dataset, in addition to tiltmeter arrays and other networks, to study or even monitor tsunami propagation using arrayed methods.
If You Play in the Mud, You Get Dirty: The Appropriation of Amish Group Identity during a Negative Campaign
Authors: Kopko Kyle C. , Nolt Steven M. , Yost Berwood A. , Redman Jackie
Published: March 2021

Using an original online experiment, we test whether the appropriation of Amish group identity influences voter behavior. We do not find that the appropriation of Amish group identity influences intended vote choice. However, there is evidence that associating the Amish with a candidate who was subjected to negative advertisements resulted in a reduction in approval rating for the Amish as a group. In addition, we find that the attitudes toward the Amish vary by respondent ideology and, consistent with the contact hypothesis, those individuals who interact regularly with the Amish reported more favorable ratings toward the Amish. The results raise important questions regarding the appropriation of a group's image in the course of a political campaign.
Kendala Berkomunikasi yang Dihadapi oleh Tenaga Profesional Penutur Bahasa Jepang di Perusahaan Jepang
Authors: Wahidati Lufi , Djafri Fatmawati
Published: March 2021

Dalam rangka penyelenggaraan program pelatihan bahasa asing untuk komunikasi bisnis, dilakukan survei pendahuluan terkait kendala berkomunikasi yang dihadapi oleh staf Indonesia penutur bahasa Jepang. Penelitian ini berusaha untuk mengidentifikasi jenis kesulitan, situasi-situasi yang sering menimbulkan kesulitan berkomunikasi, serta penyebab terjadinya permasalahan komunikasi menurut para tenaga profesional penutur bahasa Jepang yang bekerja di perusahaan Jepang. Penelitian ini menggunakan metode campuran (mix method) antara penelitian kualitatif dan kuantitatif. Penelitian diawali dengan pengumpulan data menggunakan angket. Simpulan sementara yang diperoleh dari hasil analisis angket kemudian akan diuji kembali melalui wawancara mendalam (in-depth interview) pada beberapa responden yang terpilih. Hasil wawancara dan data dari angket kemudian dianalisis kembali untuk mendapatkan simpulan akhir dari penelitian. Berdasarkan analisis, disimpulkan bahwa staf Indonesia penutur bahasa Jepang terutama mengalami permasalah berkomunikasi menggunakan bahasa Jepang saat harus melakukan komunikasi secara spontan tanpa adanya persiapan. Kendala tersebut banyak terjadi pada saat diskusi, rapat, juga komunikasi melalui telpon. Terdapat faktor internal dan faktor eksternal yang menyebabkan terjadinya kendala berkomuniasi dengan penutur jati bahasa Jepang. Faktor internal meliputi faktor penguasaan bahasa dan faktor perbedaan budaya, sedangkan faktor eksternal terjadi karena perbedaan budaya kerja di Indonesia dan di Jepang.
Clinico-etiological profile and ultrasonographic evaluation of recurrent abdominal pain in children aged 5 years and above
Authors: G. Nayak Dhavalkumar , Bamnawat Subhash , Goyal Dileep
Published: March 2021

Background: Recurrent abdominal pain (RAP) is very common and the most troublesome health related issue in school aged children affecting up to 10-20%, but very rare below 5 years and above 15 years. Objective of this study was to assess clinico-etiological profile and ultrasonographic finding in children with recurrent abdominal pain at tertiary care hospital in southern Rajasthan.Methods: This prospective observational study was carried out at tertiary care hospital Udaipur, from January 2019 to June 2020. Total 57 children aged 5 years and above who fulfilled the Apley’s criteria for recurrent abdominal pain were enrolled. Patient’s detailed history and physical examination including detailed per abdominal examination were recorded on pre-structured Performa. All patient underwent for routine investigation which consists of complete blood count, urine routine and microscopy with culture, stool examination and USG of abdomen and pelvis.Results: Mean age of children with recurrent abdominal pain in this study was 9.9 years with SD±2.86 with male to female ratio was 1.28:1. Out of 57 children, organic cause was found in 21 (36.84%) children and in 36 (63.16%) children no organic cause was found for recurrent abdominal pain. Most common organic cause was urinary tract infection in 8 (38.09%) children. Total 19 (33.33%) children had mesenteric lymphadenopathy on ultrasonography, out of which organic cause was present in 10 (52.64%) children and no cause was found in 9 (47.36%) children (p value>0.05).Conclusions: Recurrent abdominal pain might occur either due to organic or non-organic causes. Urinary tract infection is one of the most common organic cause in this study. Mesenteric lymphadenopathy was the most common ultrasonography finding in children presented with recurrent abdominal pain.
A clinical corelation study of dengue fever with hepatic dysfunction in children and their outcome
Authors: M. Srividya G. , Lakshmi Poornima
Published: March 2021

Background: The study was hepatic dysfunction in childhood dengue infection and to study clinical co-relation like severity, clinical features, and outcome.Methods: Dengue sero positive patients of 100 were admitted during the study period and examined for hepatomegaly and jaundice and subjected to complete blood count, liver function tests, ultrasound abdomen, PT, APTT, HBsAg, HCV, Widal and analysed.Results: All patients presented with fever, most commonly occurred in age group of 5 to 7 years, hepatomegaly was the commonest clinical sign seen, thrombocytopenia was seen in 88% of cases, serum total bilirubin was raised in 10% of subjects with severe dengue infection. Serum SGOT was raised in 74 % of patients with dengue. When compared between the groups, rise in SGOT occurred in 74% of patients with probable dengue, 98% with warning signs and 100% in severe dengue. SGPT was raised in 58% of patients with dengue infection. When compared between the groups, rise in SGPT occurred in 42% of patients with probable dengue, 66% with warning signs and 81% in severe dengue. SGPT was raised in 28% of patients with dengue infection. When compared between the groups, rise in SGOT occurred in 9.5% of patients with probable dengue, 32% with warning signs and 82% in severe dengue. Prothrombin time was raised in 11% of patients. When compared between the groups, rise in PT occurred in 6.4% with warning signs and 72% in severe dengue. When compared between the groups, rise in APTT occurred in 6.4% of patients with warning signs and 72% in severe dengue. When compared between the groups fall in serum protein occurred in 12.7% with warning signs and 54.5% in severe dengue. 2 cases of severe dengue expired, in which the enzyme levels were highly elevated.Conclusions: Significant rise of liver enzymes helps in recognition of severe forms of dengue infection. As hepatic dysfunction in dengue is transient and reversible, early identification of the same should help to reduce life threatening complications. This can help to reduce the morbidity and mortality due to dengue infection.al population.
Evaluating the diagnostic accuracy of gene xpert analysis in pediatric pulmonary tuberculosis: a prospective clinical study in North-Western India
Authors: S. Venkatesh Karthik , Patadiya Jigisha
Published: March 2021

Background: The diagnosis of tuberculosis (TB) by microbiological tests is a major challenge particularly in children. The use of Xpert analysis, a rapid genetic testing modality is not widely reported in our locality. The aim of the study to evaluate the diagnostic accuracy of Gene xpert analysis in diagnosis of pediatric Pulmonary TB.Methods: A prospective hospital-based study was conducted among 140 participants with symptomatology pertaining to pulmonary TB as per Revised national tuberculosis control program (RNTCP, India) criteria. The Xpert testing (GXT) was performed as per standards and was compared with erythrocyte sedimentation rate (ESR), tuberculin test (TT) and chest X-rays (CXR). The obtained results were reported in terms of Sensitivity %, Specificity %, Positive Predictive Value % (PPV) and Negative Predictive Value % (NPV) for comparisons. The receiver operating curve (ROC) analysis was employed to evaluate the accuracy of diagnosis.Results: The GXT was positive (10.71 %) in suspected TB patients. TT has significantly (10 %) with a73.33% sensitivity, 93.60% specificity and a PPV of 57.89 % when compared with xpert. The ESR showed a sensitivity of 53.33% and a specificity of 56%. The CXR showed sensitivity of 93.33%. The ROC analysis showed that TT had a higher confidence interval (0.699-0.970) t5`han other methods. The Rifampicin resistance was found 7.5% (n=2) of 15 GXT positive cases.Conclusions: The xpert based diagnosis of gastric lavage samples after a tuberculin test (TT) had high sensitivity and specificity, followed by chest X ray while the ESR had lower clinical accuracy. The ‘gene xpert analysis’ is highly useful rapid tool for diagnosis of children with TB.
Characteristics of convalescent plasma donors and their antibody titers in Bangladesh
Authors: Datta Ponkaj K. , Rahman M. Mujibur , Kabir Ahmedul , Hoque M. Mazharul , Rahman Motlabur , Hoque Mohammad Mahfuzul , Islam Kashfia , Islam Khairul , Al-Mamun A. B. M. , Hasan Pratyay
Published: March 2021

Background: Convalescent plasma is considered a promising therapy for severe COVID-19 disease. It is collected from the voluntary donors. Measurement of the antibody titer is necessary before transfusion to predict the outcome in the recipients. Characteristics of the convalescent plasma donors in Bangladesh and their antibody titers are not known.Methods: Convalescent plasma was collected from the voluntary donors who survived the COVID-19 disease to transfuse to the severe COVID-19 patients under a randomized control trial. Total IgG antibody titer was measured in the donor plasma by indirect enzyme-linked immunosorbent assay. Data was collected in a preformed questionnaire before donor plasma collection.Results: The median age is 32 (18-55) years.  Fever, cough, sore throat, diarrhea was most common among 68.3% of the symptomatic participants and the remaining 31.7% were asymptomatic at the time when they were RT-PCR positive. Overall, 57.1% of participants had mild symptoms, 11.1% had moderate symptoms and none had severe symptoms. Participants’ antibody titers were measured 41.68±14.072SD days after the RT-PCR positive date.  Rapid qualitative test could not detect antibody in 11 (17.5%) potential donors. Of the remaining 52 (82.5%) antibody positive participants titer was measured in 43 participants and found 1:320 in 17 (27.0%) (n=63), 1:160 in another 17 (27.0%) (n=63) and 1:80 in rest of the 9 (14.28%) (n=63) Participants. The mean titer of the donors who were hospitalized during their illness (1:274.29) was statistically significantly higher (p=0.043, CI>95%). The mean titer was also higher in female than in male, symptomatic than asymptomatic participants and in donors of A positive blood group. However, these finding are not statistically significant. Antibody titer does not correlate with time of RT-PCR negativity from initial RT-PCR positivity, time from RT-PCR positivity to titer date, age and body mass index.Conclusions: All RT-PCR positive COVID-19 patients subsequently may not develop antibody. Although antibody titer among hospitalized symptomatic patients was significantly higher, further study is needed to recommend optimal convalescent plasma donor criteria.
The analysis of determinants of shift nurses’ sleep quality during the COVID-19 pandemic at Sanglah general hospital Denpasar
Authors: Gunawan Stephanie E. , Laksmidewi Anak Agung Ayu Putri , Gelgel Anna M. , Adnyana I. Made Oka , Utami Desak Ketut Indrasari , Budiarsa I. Gusti Ngurah
Published: March 2021

Background: Fatigue and sleepiness experienced by nurses can put them at risk of making mistakes in medication administration and clinical judgment. In addition, fatigue and sleepiness can also lead to increased emotions towards co-workers, jeopardize their own safety, especially on the way home from work, and can reduce patient care.Methods: This study used an analytical research method with a cross-sectional study, involving 91 shift nurses. It was carried out by conducting interviews during the first break of the first morning cycle after holiday.Results: Results of this study indicated that all sociodemographic variables did not show significant differences with sleep quality variable with a significance level of p>0.05. There was also no relationship between physical activity and caffeine intake and sleep quality. Moreover, there was no significant difference between physical illness and sleep quality. Sleep quality (Pittsburgh sleep quality index/PSQI) and sleepiness level score (Karolinska sleepiness scale/KSS) showed no significant relationship with p<0.05. KSS was divided into 2 including non-sleepy state (1-6) and sleepy state (7-9).4 Insignificant relationship was also shown between sleep quality score (PSQI) and fatigue level score (fatigue severity scale/FSS). Importantly, insignificant relationship was shown between sleep quality score and hospital anxiety and depression scale. In addition, there was only work unit in COVID-19 isolation room which had a significant relationship to sleep quality compared to non-isolation room with a significance level of p<0.05. Conclusions: Based on results of this study, it can be concluded that work unit in COVID-19 isolation room had a relationship with sleep quality of shift nurses who work in the unit.
Role of pleural fluid interleukin-6, neutrophil-lymphocyte ratio, and monocyte-lymphocyte ratio in distinguishing tuberculous and malignant pleural effusions
Authors: Singgih Venny , Suryana Ketut , Kusumawardani Ida Ayu Jasminarti Dwi , Candrawati Ni Wayan , Sajinadiyasa I. Gede Ketut , Ngurah Rai Ida Bagus
Published: March 2021

Background: Pleural effusion is caused by various disease, including tuberculosis infection and malignancy. To determine the etiology, immunologic parameters are needed to distinguish tuberculous and malignant pleural effusions, including pleural fluid interleukin-6 (IL-6), neutrophil-lymphocyte ratio (NLR), and monocyte-lymphocyte ratio (MLR).Methods: This was a cross-sectional study, conducted at Sanglah General Hospital in Denpasar from March 2020 to September 2020. Pleural fluid IL-6 and leucocyte differential count were measured from subjects with tuberculous and malignant pleural effusions.Results: There were 22 tuberculous pleural effusion subjects with mean pleural fluid IL-6 9269.017±902.211 pg/ml, median (range) pleural fluid NLR 0.123 (0.044-9.449), and MLR 0.065 (0.044-0.355). There were 31 subjects with malignant pleural effusions, with mean pleural fluid IL-6 8212.146±2022.350 pg/ml, median pleural fluid NLR 0.189 (0.015-2.599), and MLR 0.065 (0.010-0.254). Pleural fluid IL-6 in tuberculous pleural effusions were significantly higher (p=0.014). With a pleural fluid IL-6 cut-off ≥9147.959 pg/ml, sensitivity of 63.6% and specificity of 64.5% were obtained. Pleural fluid NLR and MLR of the two groups were not significantly different (p=0.807 and p=0.116).Conclusions: Pleural fluid IL-6 in tuberculous pleural effusions is higher than malignant pleural effusions, with a cut-off of ≥9147.959 pg/ml, tuberculous pleural effusions can be diagnosed with sensitivity of 63.6% and specificity of 64.5%. There is no difference in pleural fluid NLR and MLR in tuberculous and malignant pleural effusions.