bluuebunny/crossref_metadata_2025 huggingface dataset:
Propuesta de metodología en la determinación de los grupos estratégicos
Authors: Araya Castillo Luis
Published: June 2021

Rev.esc.adm.negEn la literatura no existe consenso sobre la metodología que debe ser utilizada en la conformación de los grupos estratégicos. Esto es relevante, por cuanto los estudios sobre grupos estratégicos deben tener validez práctica y estadística. Considerando lo anterior, se propone la identificación de los grupos estratégicos a través de un proceso de cuatro etapas: 1) determinación de las variables estratégicas; 2) determinación de las dimensiones estratégicas; 3) validez de las dimensiones estratégicas; y 4) determinación de los grupos estratégicos. Esta metodología contribuye a la literatura, por cuanto la determinación de los grupos estratégicos parte con la percepción de los directivos sobre las estrategias que definen el comportamiento competitivo de las empresas. Posteriormente, se aplican diversos procedimientos con el objetivo de dotar de validez estadística a las percepciones de los directivos.
Comparison of G and Phi coefficients estimated in generalizability theory with real cases
Authors: DENİZ Kaan Zulfikar , ILICAN Emel
Published: June 2021

This study aims to compare the G and Phi coefficients as estimated by D studies for a measurement tool with the G and Phi coefficients obtained from real cases in which items of differing difficulty levels were added and also to determine the conditions under which the D studies estimated reliability coefficients closer to reality. The study group for this research consisted of 80 seventh-grade students from various public and private secondary schools in the provinces of Ankara, Istanbul, and Adana in Turkey. Four raters who served as Turkish teachers in various public secondary schools in Ankara were included in this study. A data collection tool consisting of 12 tasks was prepared to measure the participating seventh grade students’ written expression skills in Turkish. The equation of the G and Phi coefficients estimated in the D study and obtained through the real cases was observed only when six tasks with item difficulty indexes close to the mean difficulty of the test were added in such a way that the mean difficulty of the test never changed. In other cases, where the mean difficulty of the test changed because of the addition of easy or difficult tasks, it was determined that the reliability coefficients estimated in the D study and obtained in real cases were similar, but they had different values.
Radial artery as a second conduit gains momentum: The RAPCO trial
Authors: Simry Walid , Afifi Ahmed
Published: June 2021

In coronary artery bypass grafting (CABG), the use of an internal mammary artery (IMA) to graft the left anterior descending coronary artery (LAD) improves survival and reduces the need for repeat revascularization. The other IMA, radial artery (RA), and saphenous vein (SV) have contested to complete the surgical revascularization. For that purpose, SV remains the most commonly used conduit despite current evidence in favor of arterial grafts. To determine which conduit is best for grafting the second most important coronary artery, Buxton and colleagues have recently published the long term results of their “Radial Artery Patency and Clinical Outcomes (RAPCO)” trial.
Impact of human immunodeficiency virus on pulmonary vascular disease
Authors: Kumar Ashok , Mahajan Aatish , Salazar Ethan A , Pruitt Kevin , Guzman Christian Arce , Clauss Matthias A , Almodovar Sharilyn , Dhillon Navneet K
Published: June 2021

With the advent of anti-retroviral therapy, non-AIDS-related comorbidities have increased in people living with HIV. Among these comorbidities, pulmonary hypertension (PH) is one of the most common causes of morbidity and mortality. Although chronic HIV-1 infection is independently associated with the development of pulmonary arterial hypertension, PH in people living with HIV may also be the outcome of various co-morbidities commonly observed in these individuals including chronic obstructive pulmonary disease, left heart disease and co-infections. In addition, the association of these co-morbidities and other risk factors, such as illicit drug use, can exacerbate the development of pulmonary vascular disease. This review will focus on these complex interactions contributing to PH development and exacerbation in HIV patients. We also examine the interactions of HIV proteins, including Nef, Tat, and gp120 in the pulmonary vasculature and how these proteins alter the endothelial and smooth muscle function by transforming them into susceptible PH phenotype. The review also discusses the available infectious and non-infectious animal models to study HIV- associated PAH, highlighting the advantages and disadvantages of each model, along with their ability to mimic the clinical manifestations of HIV-PAH.
Diagnoza i rewalidacja osoby niepełnosprawnej. Studium przypadku
Authors: Grott Edward
Published: June 2021

Wystąpienie to poświęcone jest młodej osobie - Andrzejowi, aktualnie  uczęszcza on do gimnazjum. Wykryto u niego upośledzenie umysłowe w stopniu umiarkowanym. Ponadto Andrzej choruje na padaczkę. Fizycznie chłopiec, w wyglądzie zewnętrznym, nie zdradza żadnych odchyleń od normy, wygląda na osobę zdrową. Można z nim porozmawiać na temat spraw życia codziennego, obowiązków domowych. Jednakże jeśli poruszy się tematy dotyczące zagadnień z biologii, geografii, fizyki, matematyki chłopiec nie posiada już takiej wiedzy i nie włącza się do dyskusji. Andrzej jest chłopcem spokojnym, towarzyskim, rozmownym, uwielbia oglądać telewizję i grać w piłkę.Niniejsza praca ukazuje przebieg życia młodego człowieka począwszy od narodzin, poprzez okres, w którym postawiono diagnozę, a następnie funkcjonowanie w rodzinie, szkole, najbliższym środowisku. Powstała dzięki uprzejmości studentów jednej z uczelni w północno-wschodniej Polsce, którzy w ramach przedmiotu Terapia pedagogiczna prowadzili pod moim kierunkiem badania naukowe.
Uwagi na temat roli nauk przyrodniczych i nowej duchowości w ochronie przyrody
Authors: Kubiak Adam B.
Published: June 2021

Issues of nature conservation, and socio-cultural movement called ecologism, are vivid becouse o f it’s many controvertions and actual validity in terms o f sustainable development. This paper presents contemporary motives o f preserving the nature, scientific ways of it’s realization, and chosen issues o f so called „ecological spirituality”. Reflection on the abilities and perils of science and spirituality, with reference to philosophy and practical conservation activity, will be led. Finally, there will be an attemption to answer the question about relation between nature preservation, science and ecological spirituality, and to define the spiritual condition and trends in contemporary ecologism.
Rola narracji filozoficznej w etyce cnót środowiskowych
Authors: Dzwonkowska Dominika
Published: June 2021

Etyka cnót środowiskowych jest stosunkowo młodym obszarem badań, który podejmuje zagadnienie moralnych dyspozycji wspierających działania na rzecz ochrony środowiska. W niniejszym artykule przedstawiam i porządkuję tezy narracyjnej koncepcji etyki cnót środowiskowych. Celem moich analiz jest ukazanie podwójnej roli narracji w tej koncepcji etyki, to jest zarówno jako narzędzia transformacji indywidualnej, jak i społecznej. Takie ujęcie odpowiada rodzajom dyspozycji moralnych, w koncepcji Briana Treanora, twórcy narracyjnej etyki cnót. Przeprowadzone analizy pomogły pokazać narrację, jako narzędzie do poznawania siebie samego, a dokładniej odpowiadania na pytanie: kim jestem? By móc zdefiniować i dążyć do tego, kim chcę się stać. W ten sposób autonarracja staje się narzędziem osobistej przemiany (metanoi). Narracja nie tylko służy rozwojowi osobistemu, lecz także poprzez język mitów, metafor i obrazów wspiera promowanie pożądanych kodów kulturowych. W ten sposób narracja jest bardzo skutecznym narzędziem przemiany społecznej. Kluczowe w narracji są dwa narzędzia. Po pierwsze, na poziomie indywidualnym, istotne jest phronesis, które pomaga wybierać dobrą narrację i odpowiednio ją interpretować. Drugim narzędziem, ważnym na poziomie społecznym, jest edukacja moralna, która pozwala kształtować postawy moralne służące rozwojowi społeczeństwa w pożądanym kierunku.
Idea zrównoważonego rozwoju w świetle encykliki papieża Franciszka Fratelli tutti
Authors: Babicki Zbigniew
Published: June 2021

W artykule przedstawione zostały w ogólnym zarysie idee zrównoważonego rozwoju i społeczne nauczanie papieża Franciszka zawarte w encyklice Fratelli tutti. Bardzo ważnym wymiarem założeń zrównoważonego rozwoju jest konstruowanie wzorca życia społecznego. Chodzi tu o takie sposoby działań, które będą umożliwiały rozwiązywanie konfliktów społecznych, zwłaszcza w sytuacjach rozwarstwiania się społeczeństwa. Papież Franciszek w encyklice Fratelli tutti, która mówi o braterstwie i przyjaźni społecznej, upomina się o humanistyczne relacje między ludźmi. Zaniepokojony o przyszłość człowieka proponuje skorzystanie z możliwości, jakie niesie przesłanie powszechnego braterstwa i przyjaźni społecznej, które będzie podstawą w budowaniu wspólnoty ludzkiej i ładu społecznego. Artykuł zwraca uwagę na konieczność połączenia wysiłków i współpracy na rzecz realizacji celów humanistycznego rozwoju ludzkości, czyli na zrównoważoną zmianę. Celem tego artykułu jest refleksja nad ideą zrównoważonego rozwoju w kontekście społecznego nauczania papieża. Jeśli bowiem diagnoza zagrożeń współczesnego świata, jak również remedium na te zagrożenia w postaci edukacji dla zrównoważonego rozwoju są w jakiejś mierze zbieżne z głosem Kościoła, oznaczać to może wspólne pole do działania na rzecz poprawy sytuacji. Istnieje uzasadniona i pilna potrzeba zarówno teoretycznych odniesień do kryzysowych zjawisk i tendencji, jak i realnych działań, które przyczynią się do eliminowania i niwelowania zgubnych procesów dla środowiska społecznego oraz przyrodniczego naszej planety. Nadszedł czas współdziałania na płaszczyźnie edukacji zmierzającej do budowania na świecie powszechnego braterstwa i przyjaźni społecznej, która daje możliwość podejmowania celów zrównoważonego rozwoju. Dzięki współpracy wszystkich ludzi dobrej woli cele zrównoważonego rozwoju przybliżają się do konkretnych ludzi, stając się ich własnym zadaniem do wykonania. Idea zrównoważonego rozwoju zyskuje ważnego sojusznika w postaci edukacyjnego wsparcia ze strony papieża Franciszka i jego wizji świata opartego na braterstwie i przyjaźni społecznej. Jest to wizja świata odwołująca się do obowiązku miłości bliźniego, troski o integralny rozwój człowieka i ostatecznie o jego zbawienie. Z pewnością każda próba konfrontowania idei zrównoważonego rozwoju z nauczaniem społecznym papieża Franciszka, zawartym przede wszystkim w encyklice Fratelli tutti, będzie zależała od przyjmowanego światopoglądu oraz wizji rozwoju człowieka i świata. Tym, co łączy te dwie propozycje, jest jednak zatroskanie o dobro ludzkości i naszej planety.
Локальные и интегральные свойства квазиодномерного сверхпроводника в режиме квантовых флуктуаций параметра порядка
Authors: Арутюнов К.Ю. , Лехтинен Я.С. , Трефилов Д.О. , Радкевич А.А. , Семенов А.Г. , Заикин А.Д.
Published: June 2021

Utilization of superconducting materials for the new generation of nanoelectronic devices seems extremely tempting from the point of view of the absence of Joule heating. However, in small systems, the role of fluctuations can be very significant. In this work, the transport properties of thin superconducting titanium nanostructures were studied experimentally and theoretically. It has been shown that quantum fluctuations of the order parameter have a dif-ferent impact on integral and local characteristics of a quasi-one-dimensional superconductor. In sufficiently thin nanowires, a finite electrical resistance can be observed at the lowest tem-peratures, while the tunneling current-voltage characteristics exhibit only slightly broadened gap singularity and a finite Josephson current. The observation is of fundamental importance for understanding the phenomenon of mesoscopic superconductivity and should be taken into account when designing nanometer scale cryoelectronic devices.
Модификация поверхностного взаимодействия Дзялошинского--Мория в пленках Co/тяжелый металл при облучении ионами гелия
Authors: Гусев Н.С. , Дудин Ю.А. , Садовников А.В. , Сапожников М.В.
Published: June 2021

Проведено экспериментальное исследование влияния облучения ионами гелия на поверхностное взаимодействие Дзялошинского-Мория (ПВДМ) в тонких пленках кобальта на слое тяжелых металлов Pt и W. Измерение величины ПВДМ проводилось методами мандельштам-бриллюэновской спектроскопии (МБС). Измерение петель намагничивания образцов было выполнено методами оптической магнитометрии. Обнаружено немонотонное изменение константы ПВДМ в пределах 0.1-0.6 J/m2 при флюенсах 1014-1016 cm-2. Ключевые слова: ферромагнитные пленки, поверхностное взаимодействие Дзялошинского--Мория, перпендикулярная анизотропия.
Магнитные наночастицы, полученные электрофизическими методами: фокус на биомедицинские приложения
Authors: Курляндская Г.В. , Сафронов А.П. , Щербинин С.В. , Бекетов И.В. , Бляхман Ф.А. , Макарова Э.Б. , Корч М.А. , Свалов А.В.
Published: June 2021

This work describes the possibility of fabrication of the large batches of magnetic nanoparticles using electrophysical methods of electric explosion of the wire, laser target evaporation and spark discharge. Bioapplications of nanoparticles require the production of magnetic materials in the form of stabilized aqueous suspensions or hydrogels with magnetic fillers; therefore, some details of the synthesis of these materials and their certification are discussed. The peculiarities of interaction of magnetic nanoparticles with biological systems, the problem of biocompatibility, the possibility of using ferrogel substrates for the needs of cell technologies and regenerative medicine, as well as implication of biomimetics in the development of magnetic biosensors are considered. The results of the analysis of a number of different biological experiments carried out with suspensions of various types, obtained based on the same batch of MNPs are presented. An analysis of examples of magnetic biodetection and existing theoretical approaches will make it possible to assess the prospects of this scientific direction for the creation of highly sensitive thin film sensors based on the giant magnetoimpedance effect for biomedical applications
Влияние амплитуды СВЧ-воздействия на спиновый ток границы платина/железоиттриевый гранат
Authors: Константинян К.И. , Овсянников Г.А. , Станкевич К.Л. , Шайхулов Т.А. , Шмаков В.А. , Климов А.А.
Published: June 2021

A numerical study of the features of the propagation of spin waves in a waveguide made of yttrium iron garnet (YIG) and Fe-Rh alloy in the form of a plate, located on top of the central part of the YIG, is carried out. Based on the simulation results, the possibilities of controlling the dynamics of spin waves in the structure under study were also revealed. Micromagnetic numerical simulation was used to study the transfer of a spin-wave signal in a multimode mode by numerically solving the Landau – Lifshitz – Hilbert equation. Transformation of the transmission spectra of spin waves shows that the proposed structure will make it possible to control the propagation of spin-wave modes due to a sharp change in the Fe-Rh magnetization in the region of the magnetic phase transition temperature close to room temperature. In addition, the spin wave signal can be controlled by a small temperature change in the Fe-Rh plate generated by the laser radiation. The two-layer structure of YIG / Fe-Rh, from an applied point of view, can be used as a functional unit in planar magnon networks performing space-frequency demultiplexing and filtering of spin-wave modes.
Структура и механизмы образования наноразмерных пленок примесного металла кобальта и никеля в монокристаллах LiF и MgF-=SUB=-2-=/SUB=-
Authors: Иванов Н.А. , Небогин С.А. , Колесников С.С. , Брюквина Л.И.
Published: June 2021

It is investigated the thermal etching of LiF and MgF2 crystals with cobalt and nickel impurities by means of scanning electron microscopy and atomic force microscopy with using decorating. It is shown that impurity inclusions leave the crystal from dislocations. The differences between of thermal etching in vacuum and air atmosphere take place. The crystallographic oriented terraced etch pits are formed after exit of impurities from dislocations. The square thermal etch pits are formed after thermal etching at 750°C in air. The surface impurity nanoscale film is formed at thermal etching. The oxidation of surface impurities observed at thermal etching in air atmosphere or in residual air atmosphere.
Критические температуры модели локальных бозонов на квадратной решетке в приближении Бете
Authors: Спевак Е.Л. , Панов Ю.Д. , Москвин А.С.
Published: June 2021

We consider the inclusion of short-range correlations for a two-dimensional model of local bosons on a square lattice in the framework of the Bethe approximation for clusters of 2 and 4 sites. Explicit equations are obtained for determining the critical temperatures of charge and superfluid ordering and their solutions are considered for various ratios of the charge-charge correlation parameter and the transfer integral. It is shown that taking into account short-range correlations for temperatures of charge ordering leads to the appearance of a critical concentration of bosons, limiting the region of existence of solutions like charge ordering. For superfluid ordering, when short-range correlations are taken into account, the critical temperature is reduced down to zero values at half-filling. The phase diagram of the model of local bosons is constructed with allowance for phase separation within the framework of Maxwell's construction, and it is shown that taking into account short-range correlations in the Bethe approximation quantitatively approximates the form of the phase diagram to the results of the quantum Monte Carlo method.
Особенности фазовой диаграммы полужестких бозонов на квадратной решетке
Authors: Конев В.В. , Панов Ю.Д.
Published: June 2021

We investigated the phase diagrams of a system of charged semi-hardcore bosons in the mean-field approximation. It is shown that an increase in the local correlation parameter leads to the transformation of the phase diagram of the system from the form characteristic of hard-core bosons to the limit form with a parabolic dependence of the critical temperature of the charge ordering on the boson concentration. The evolution between these limiting cases depends on the ratio of the model parameters and is accompanied by various effects, including a change in the type of phase transition, the appearance of new order-order transitions, and the appearance of new critical points.
Зависимость поверхностной энергии от температуры и давления для макро- и нанокристалла
Authors: Магомедов М.Н.
Published: June 2021

Based on the RP-model of a nanocrystal, an analytical method is developed for calculating the specific surface energy (), isochoric and isobaric derivatives of the  function with respect to temperature, and isothermal derivatives of the  function with respect to pressure and density. It is shown that the method is applicable for both macro-and nanocrystals with a given number of atoms and a certain surface shape. To implement this method, the parameters of the Mie–Lennard-Jones paired interatomic potential were determined in a self-consistent way based on the thermoelastic properties of the crystal. The method was tested on macrocrystals of 15 single-component substances: for 8-FCC crystals (Cu, Ag, Au, Al, Ni, Rh, Pd, Pt) and for 7-BCC crystals (Fe, V, Nb, Ta, Cr, Mo, W). The calculations were made at different temperatures and showed good agreement with the experimental data. Using the example of FCC-Rh, the change in surface properties with a decrease of the nanocrystal size along the isotherms of 10, 300, 2000 K is studied. It is shown that at high pressures and low temperatures, there is a region where the  function increases at an isomorphic-isothermal-isobaric decrease in the nanocrystal size. As the temperature increases, this area disappears.
Термоимпендансметрия нанокристаллитов V-=SUB=-2-=/SUB=-O-=SUB=-5-=/SUB=-, локализованных в каналах нанопористого стекла
Authors: Кастро Р.А. , Ильинский А.В. , Пашкевич М.Э. , Сидоров А.И. , Шадрин Е.Б.
Published: June 2021

Impedancemetry methods have been used to measure the temperature dependence of the electrical conductivity of nanoparticles using the example of poorly studied vanadium pentoxide synthesized in porous glass nanochannels. The estimates of the band gap and the values of the specific electrical conductivity of nanoparticles of the semiconducting phase V2O5 are given. The reasons for the narrowing of the band gap of V2O5 localized in glass nanopores are discussed on the basis of the concept of lone electron pairs and the processes of charge transfer.
Латеральный спин-волновой транспорт в системе неидентичных магнонно-кристаллических микроволноводов
Authors: Губанов В.А. , Шешукова С.Е. , Садовников А.В.
Published: June 2021

The control regimes of dipole coupling in the lateral system of non-identical magnonic crystals are investigated by the method of Mandelstam-Brillouin spectroscopy and by the method of micromagnetic modeling. The modes of spatial and frequency selection of the spin-wave signal near the frequency of the band gap zone of the magnonic crystal are revealed. The influence of changes in geometric parameters on the properties of waveguide modes near the frequency of the Bragg resonance is investigated. The results obtained can be used to create microwave signal processing devices, such as demultiplexers, power dividers, couplers.
Почему наночастицы магнетит/золото со структурой ядро-оболочка недостаточно хороши и как их улучшить
Authors: Соколов А.Э. , Иванова О.С. , Федоров А.С. , Ковалева Е.А. , Высотин М.А. , Lin C.-R. , Овчинников С.Г.
Published: June 2021

In this paper a short review of experimental and theoretical recent researches of magnetic core-shell nanoparticles with noble metals shell is given. Magnetic nanoparticles of Fe3O4 coated with a gold shell are in demand in many biomedical applications. However, there are practically no good nanoparticles completely and uniformly coated with gold. In this paper, we investigated the formation of a chemical bond at the magnetite/gold interface. In the framework of DFT-GGA calculations, the geometric structure, electronic and magnetic properties of flat layers consisting of Fe3O4 magnetite, titanium, and gold are studied. It is established that the specific energy and wetting parameters of the magnetite-gold interface are negative, while these values of the magnetite-titanium (for thin Ti layers) and magnetite-titanium-gold boundaries are positive. This allows us to hope that an intermediate thin layer of titanium at the boundary between the surface of the magnetite nanoparticle and the gold layer will stabilize this three-layer structure and allow obtaining magnetite nanoparticles coated with a solid gold coating.
Анизотропия анионной проводимости в монокристаллах суперионного проводника CeF-=SUB=-3-=/SUB=-
Authors: Сорокин Н.И. , Гребенев В.В. , Каримов Д.Н.
Published: June 2021

The anisotropy of anionic conductivity in crystals of a superionic conductor CeF3 with the tysonite structure (sp. gr. P-3с1) has been studied for the first time. The conductivity measurements at temperatures from 300 K to 600 K were carried out along the principal a- and c-axes of trigonal unit cell of the crystal. The maximum value of electrical conductivity is observed along the c-axis. The superionic CeF3 crystals have the weak anisotropy of electrical conductivity equal to σ||c/σ||a = 2.4 and σ||c = 5.6 10–4 S/cm at 500 K. The anisotropy effect of anionic conductivity in individual fluorides with the tysonite structure is discussed in connection with the peculiarities of their atomic structure.
Caracterización morfoagronómica de 25 clones de estevia (Stevia rebaudiana Bertoni.), en condiciones del valle del Sinú medio.
Authors: Pico-González Ana Isabel , Aramendiz-Tatis Hermes , Pérez-Polo Dairo J.
Published: June 2021

La caracterización de los recursos genéticos, es de vital importancia para su aprovechamiento en programas de fitomejoramiento. En Stevia rebaudiana Bert., se demandan genotipos con atributos químicos y agronómicos deseables; por ello, el objetivo de la investigación fue, caracterizar morfoagronómicamente 25 clones de estevia, derivados del cruzamiento al azar entre plantas de la variedad Morita II, mediante la aplicación de descriptores (11 características cuantitativas y ocho cualitativas), sobre cinco plantas al azar de cada genotipo, teniendo en consideración la moda y frecuencia de cada descriptor, el análisis de componentes principales y un dendograma mediante el método de Ward. Las características agronómicas hábito de crecimiento erecto, rendimiento de follaje y número de días a floración superior a los 50 días, permitieron la selección de los clones 04, 09, 13, 16, 18, y 19. A su vez, se identificaron dos componentes que explicaron un 69.41% de la varianza, el primero aportando un 47,74% y el segundo, un 21,67% de la variación total, soportado por caracteres relacionados con el rendimiento, lo que resulta de interés para adelantar programas de mejoramiento genético en la especie
Evaluación de diferentes sustratos enriquecidos con microorganismos para la producción de compost en áreas naturales
Authors: Ojeda-Quintana Lázaro J. , Hernández-Rodríguez Consuelo , López-Melian Anaisa , Frómeta-Milanés Celso
Published: June 2021

La práctica de elaboración y aplicación del compost se acepta ampliamente como sostenible en la producción de cultivos. La investigación se realizó en la Unidad Científico Técnica Base “UCTB Suelos Cienfuegos”, Cuba con el objeto de evaluar el proceso de compostaje a partir de diferentes combinaciones de residuos de plantas (Sacharum officinarum, Pennisetum purpureum, Leucaena leucocephala, Eichhornia azurea y Oryza sativa) y la adición de un inoculante microbiano. Se condujeron cinco tratamientos con tres repeticiones en un diseño de Bloques al azar. Se midió la temperatura durante todo el proceso, la descomposición y se determinó la composición química del compost obtenido. El comportamiento de la temperatura mantuvo indistintamente en todos los tratamientos la secuencia de fases: Mesófila, Termófila y Mesófila II, con una duración del proceso de compostaje en los tratamientos que contenían S. officinarum y P. purpurea entre 105-110 días y un porcentaje de descomposición de 78,2%, 84,6% y 88,6% respectivamente; mientras que, en los tratamientos que contenían  E.  azurea y  O.  sativa la duración estuvo entre 135-140 días, con una descomposición de 68% y 69,4% respectivamente, sin que dicha extensión influyera en la descomposición alcanzada. Al evaluar los resultados se concluye que todos los tipos de compost obtenidos son viables para su uso, teniendo en cuenta sus propiedades, con destaque para el tratamiento con S. officinarum 3, que tuvo los mayores valores de nitrógeno 1,55%, potasio 1,87%, materia orgánica 62,8%, fósforo de 0,53%, relación carbono nitrógeno 23,29 y el mayor porcentaje de descomposición.
Therapists’ Experience of Video Consultation in Specialized Mental Health Services During the COVID-19 Pandemic: Qualitative Interview Study
Authors: Gullslett Monika K , Kristiansen Eli , Nilsen Etty R
Published: June 2021

Background

As part of political and professional development with increased focus on including service users within mental health services, these services are being transformed. Specifically, they are shifting from institutional to noninstitutional care provision with increased integration of the use of electronic health and digitalization. In the period from March to May 2020, COVID-19 restrictions forced rapid changes in the organization and provision of mental health services through the increased use of digital solutions in therapy.

Objective

The aim of this study was to develop and advance comprehensive knowledge about how therapists experience the use of video consultation (VC). To reach this objective, we evaluated therapists’ experiences of using VC in specialized mental health services in the early phase of COVID-19 restrictions. The following questions were explored through interviews: Which opportunities and challenges appeared when using VC during the period of COVID-19 restrictions? In a short-term care pathway, for whom does VC work and for whom does it not work?

Methods

This study employed a qualitative approach based on an abductive strategy and hermeneutic-phenomenological methodology. Therapists and managers in mental health departments in a hospital were interviewed via Skype for Business from March to May 2020, using a thematic interview guide that aimed to encourage reflections on the use of VC during COVID-19 restrictions.

Results

Therapists included in this study experienced advantages in using VC under circumstances that did not permit face-to-face consultations. The continuity that VC offered the service users was seen as a valuable asset. Various negative aspects concerning the therapeutic environment such as lack of safety for the most vulnerable service users and topics deemed unsuitable for VC lowered the therapists’ overall impression of the service. The themes that arose in the data analysis have been categorized in the following main topics: (1) VC—“it’s better than nothing”; (2) VC affects therapists’ work situation—opportunities and challenges in working conditions; and (3) challenges of VC when performing professional assessment and therapy on the screen.

Conclusions

Experiences with VC in a mental health hospital during COVID-19 restrictions indicate that there are overall advantages to using VC when circumstances do not permit face-to-face consultations. Nevertheless, various negative aspects in the use of VC lowered the therapists’ overall impression of VC. Further qualitative research is needed, and future studies should focus on service users’ experiences, cocreation between different stakeholders, and how to scale up the use of VC while ensuring that the service provided is appropriate, safe, and available.
Usage Patterns of Web-Based Stroke Calculators in Clinical Decision Support: Retrospective Analysis
Authors: Kummer Benjamin , Shakir Lubaina , Kwon Rachel , Habboushe Joseph , Jetté Nathalie
Published: June 2021

Background

Clinical scores are frequently used in the diagnosis and management of stroke. While medical calculators are increasingly important support tools for clinical decisions, the uptake and use of common medical calculators for stroke remain poorly characterized.

Objective

We aimed to describe use patterns in frequently used stroke-related medical calculators for clinical decisions from a web-based support system.

Methods

We conducted a retrospective study of calculators from MDCalc, a web-based and mobile app–based medical calculator platform based in the United States. We analyzed metadata tags from MDCalc’s calculator use data to identify all calculators related to stroke. Using relative page views as a measure of calculator use, we determined the 5 most frequently used stroke-related calculators between January 2016 and December 2018. For all 5 calculators, we determined cumulative and quarterly use, mode of access (eg, app or web browser), and both US and international distributions of use. We compared cumulative use in the 2016-2018 period with use from January 2011 to December 2015.

Results

Over the study period, we identified 454 MDCalc calculators, of which 48 (10.6%) were related to stroke. Of these, the 5 most frequently used calculators were the CHA2DS2-VASc score for atrial fibrillation stroke risk calculator (5.5% of total and 32% of stroke-related page views), the Mean Arterial Pressure calculator (2.4% of total and 14.0% of stroke-related page views), the HAS-BLED score for major bleeding risk (1.9% of total and 11.4% of stroke-related page views), the National Institutes of Health Stroke Scale (NIHSS) score calculator (1.7% of total and 10.1% of stroke-related page views), and the CHADS2 score for atrial fibrillation stroke risk calculator (1.4% of total and 8.1% of stroke-related page views). Web browser was the most common mode of access, accounting for 82.7%-91.2% of individual stroke calculator page views. Access originated most frequently from the most populated regions within the United States. Internationally, use originated mostly from English-language countries. The NIHSS score calculator demonstrated the greatest increase in page views (238.1% increase) between the first and last quarters of the study period.

Conclusions

The most frequently used stroke calculators were the CHA2DS2-VASc, Mean Arterial Pressure, HAS-BLED, NIHSS, and CHADS2. These were mainly accessed by web browser, from English-speaking countries, and from highly populated areas. Further studies should investigate barriers to stroke calculator adoption and the effect of calculator use on the application of best practices in cerebrovascular disease.
Sodium hyaluronate supplemented culture medium combined with joint-simulating mechanical loading improves chondrogenic differentiation of human mesenchymal stem cells
Authors:   O Research Institute Davos, Davos, Switzerland, Monaco G , El Haj AJ , Alini M , Stoddart MJ
Published: June 2021

In vitro models aim to recapitulate the in vivo situation. To more closely mimic the knee joint environment, current in vitro models need improvements to reflect the complexity of the native tissue. High molecular weight hyaluronan (hMwt HA) is one of the most abundant bioactive macromolecules in healthy synovial fluid, while shear and dynamic compression are two joint-relevant mechanical forces. The present study aimed at investigating the concomitant effect of joint-simulating mechanical loading (JSML) and hMwt HA-supplemented culture medium on the chondrogenic differentiation of primary human bone-marrow-derived mesenchymal stem cells (hBM-MSCs). hBM-MSC chondrogenesis was investigated over 28 d at the gene expression level and total DNA, sulphated glycosaminoglycan, TGF-β1 production and safranin O staining were evaluated. The concomitant effect of hMwt HA culture medium and JSML significantly increased cartilage-like matrix deposition and sulphated glycosaminoglycan synthesis, especially during early chondrogenesis. A stabilisation of the hBM-MSC-derived chondrocyte phenotype was observed through the reduced upregulation of the hypertrophic marker collagen X and an increase in the chondrogenic collagen type II/X ratio. A combination of JSML and hMwt HA medium better reflects the complexity of the in vivo synovial joint environment. Thus, JSML and hMwt HA medium will be two important features for joint-related culture models to more accurately predict the in vivo outcome, therefore reducing the need for animal studies. Reducing in vitro artefacts would enable a more reliable prescreening of potential cartilage repair therapies.
Description of Triglyceride Risk Factors with Ischemic Stroke Patients at UKI Hospital for 2018
Authors: Pariama Ganda , Yudawijaya Agus
Published: June 2021

Stroke is a neurologic disease that results from a blood supply to the brain. Ischemic stroke is the most frequent stroke caused by thrombus and embolism. Stroke patients in urban areas, roughly 28,5 % die, the rest are either completely paralyzed or even totally paralyzed, and the rest 15 % healed. Riskesdas' 2018 data, the rate of strokes at age 75 reaches 50,2 % and the male gender with an 11 % while women are 10,9 %. One of the minor risk factors that can be controlled is high blood fat, triglycerides. That study was conducted to assess the risk factor for record triglycerides with ischemic stroke patients at the General Hospital of the Christian University of Indonesia. The study uses a retrospective descriptive method—data retrieval using medical records. Taking samples using is a total sampling method from January – December 2018 with 113 patients. Triglycerides above normal are 63 patients (55,8 %), high cholesterol total and Low-Density Lipoprotein levels is 68 patients (60,2 %) and 61 patients (54 %). Male patients has 59 (52,2 %).
A BRIEF REVIEW ON CRYOGUN MACHINE FOR PRE-CERVIX CANCER HEALING
Authors: Bagaskara Aji , Sundari Rita , Anggraini Rini
Published: June 2021

Cervical cancer is generally found in women of all ages due to  virus infection on epithelial cells of female cervix. It is known that a certain type of Human Papilloma Virus (HPV) is suspected to cause cervix cancer in women from various ethnics.   Several therapies have been used to cure cancer diseases like cone biopsy, laser treatment, electrosurgical excision, thermocoagulation, ablation therapy, and cryotherapy. This paper has highlighted on the role of cryogun machine applied in cryotherapy for pre-cervical cancer treatment in relation to freezing technique using liquid nitrogen to kill cancer cells on infectious area.
Peripheral Blood Examination Findings in SARS-CoV-2 Infection in Pediatric Patients
Authors: SEGURA ROMEL , Sanchez Stefanie , Rojas Juan , Castillo Gaston
Published: June 2021

Background The findings of peripheral blood examination (PBE) in
SARS-CoV2 infection in pediatrics patients have not been fully
described, the reports have been done on the adult population so far. In
this study we showed the characteristics in the PBE in SARS-CoV2
infection in the pediatric population. Methods Descriptive,
observational, longitudinal, prospective study. Information from the
medical records of pediatric patients < 17 years of age with a
diagnosis of SARS-COV-2 (positive PCR test) was analyzed and peripheral
blood smear examination was performed. Results 16 pediatric patients
with a diagnosis of SARS-CoV-2 /COVID-19 were evaluated. 100% of the
patients had PBE done, 62.50% (10/16) had no morphological alteration
of the erythroid cell line, the erythroid changes were: anisocytosis and
echinocytosis in 12.5% (2/16), in white cell line a predominance of
plasmacyte lymphocytes was found in 37.5% (6/16), followed by
hyposegmented neutrophils “Pelger-Huet anomaly” 31.25% (5/16),
hypersegmented neutrophils 12.5% (2/16) , atypical lymphocytes 18.75%
(3/16), granular lymphocytes in 6.25% (1/16), prolymphocytes in 6.25%
(1/16), hyposegmented eosinophils in 12.5% (2/16). Conclusion
Plasmacytoid lymphocytes and large granular lymphocyte are seen more
frequently in pediatric patients with COVID-19. Abnormalities in the
neutrophils with acquired Pelger-Huët anomaly (APHA) were important
findings in pediatric patients with COVID-19.
RAPID AND COST-EFFECTIVE PROCESS BASED ON INSECT LARVAE FOR SCALE-UP PRODUCTION OF SARS-COV-2 SPIKE PROTEIN FOR SEROLOGICAL COVID-19 TESTING
Authors: Smith Ignacio , Callum Gregorio Mc , Sabljic Adriana , Marfia Juan , Bombicino Silvina , Trabucchi Aldana , Iacono Ruben , Birenbaum Joaquín , Vazquez Susana , Minoia Juan , Cascone Osvaldo , López María , Taboga Oscar , Targovnik Alexandra , Wolman Federico , Fingermann Matías , Alonso Leonardo , Valdez Silvina , Miranda Maria
Published: June 2021

Serology testing for COVID-19 is important in evaluating active immune
response against SARS-CoV-2, studying the antibody kinetics, and
monitoring reinfections with genetic variants and new virus strains, in
particular, the duration of antibodies in virus-exposed individuals and
vaccine-mediated immunity. In this work, recombinant S protein of
SARS-CoV-2 was expressed in Rachiplusia nu, an important agronomic
plague. One larva produces an amount of S protein sufficient for 150
determinations in the ELISA method herein developed. We established a
rapid production process for SARS-CoV-2 S protein that showed
immunoreactivity for anti-SARS-CoV-2 antibodies and was used as a single
antigen for developing the ELISA method with high sensitivity (96.2%)
and specificity (98.8%). Our findings provide an efficient and
cost-effective platform for large-scale S protein production, and the
scale-up is linear, thus avoiding the use of complex equipment like
bioreactors.
Assessment of the role of physicochemical properties of the soil on the formation of badlands around Chitrakoot, India
Authors: Singh Nikhilesh , Jha Medha , Tignath Sanjay , Singh Bhola Nath , Chattopadhyay Arghya
Published: June 2021

The present paper attempts to study the causative physicochemical
properties of the soils, which effectively portray its dispersive and
deteriorating conditions, which have led to the formation of badlands in
the Mandakini River watershed Chitrakoot area, India. Following
investigations were made on the soil samples collected from the field:
i) grain size distribution ii) various physicochemical properties and
nutrient content of the soil. The clay minerals were detected and
identified with the X-ray diffraction (XRD), Fourier transform infrared
(FTIR), and High-Resolution Scanning Electron Microscopy (HRSEM). The
spatial maps of all these parameters were prepared in a GIS environment,
and overlay analysis was performed. The results show that the soil has a
silt loam texture with high bulk density. The low values of plastic
limit, liquid limit, and plasticity index show the non-cohesive nature
of the soils. Higher bulk density has decreased the porosity as well as
permeability in the soils. This impact on porosity and permeability has
reduced the favourable conditions for vegetation, and the soils contain
low organic matter. Apart from the bulk density, the presence of
calcrete and illitic clay mineral (low in content) has also reduced the
permeability of the soils, further increasing runoff. The overlay
analysis based on the liquid limit, plasticity index, bulk density, and
drainage frequency shows that the area is thoroughly affected by badland
processes. Three zones were categorized as severe, very severe, and
extremely severe depending upon their conditions gully channel
processes.
Pattern and Predicting Risk Factors of Multi-Morbidity in the AzarCohort Population Using Structural Equation Model
Authors: Somi Mohammad-Hossein , Ostadrahimi Alireza , Gilani Neda , Kamanaj Arash Haji , Hassannezhad Sina , Faramarzi Elnaz
Published: June 2021

Background: The co-existence of chronic diseases (CD), a condition
defined as multimorbidity (MM), is becoming a major public health issue.
Understanding the general framework of MM diseases according to the
well-known risk factors can assist in finding direct and indirect
relationships among them. Therefore, we aimed to determine pattern and
predicting risk factors of multi-morbidity in the Azar Cohort population
using Structural Equation Model (SEM). Methods: In this study, the
prevalence of MM in 15006 XXX cohort population was evaluated. MM was
defined as the co-existence of two or more CDs. The information
regarding socio-economic, demographic, sleeping habits, and physical
activity were collected by questionnaires. A multi-group SEM was
employed to model complex relationships between directly- and
indirectly-observed variables. Results: The overall MM was seen in
28.8% of the population. The most prevalent chronic diseases were
obesity, hypertension, depression, and diabetes, respectively. Obesity,
depression, and diabetes were the most co-occurring CDs in our
population. The SEM diagram indicated the overall effect of
socio-demographic (predictors) and sleep and physical activity
(mediators) on the number of CDs. The number of CDs in the active
participants and those who sleep 6.6-7.3 hours/day was lower than the
inactive participants and those who sleep ≤6.5 hours/day. Conclusions:
According to our results, it seems that the reduction of MM is possible
through promoting public health from an early age and for a wide range
of socio-economic conditions, provided that the necessary support for
general health is offered for the aging population.
A rare case of spontaneous abdominal aorta thrombosis
Authors: matarneh ahmad , sadiq amna , Khan Adeel , Eltahir asma , alansari mazin , mohammad abdulmoqeeth
Published: June 2021

Spontaneous abdominal aorta thrombosis is extremely rare. Symptoms vary
widely, ranging from asymptomatic to more catastrophic presentations. We
report the case of a 40-year-old lady who presented with 1-week history
of abdominal pain and was found to have spontaneous abdominal aorta
thrombosis.
An integrated state-space model to assess Italian alpine galliforms status from count and bag data
Authors: Coline Canonne , Martinoli Alessio , Martinoli Adriano , Besnard Aurélien
Published: June 2021

The assessment of wildlife population sizes and their trends is one of
the most important research fields in conservation biology, as it is
used to identify vulnerability soon enough to implement measures in
threatened species, or to set up sustainable harvesting rates in
exploited populations. Yet, because field work is expensive, may be
difficult in terms of logistics and because some populations of the same
species may be monitored by different stakeholders, population status
often rely on fragmented and heterogenous information on sub-populations
collected through various monitoring programs. In this context, data
integration, i.e. the simultaneous analysis of different datasets in a
single modelling framework allows to get unbiased and more precise trend
estimates than separated analysis that in turn may lead to more adequate
management policies. In this study we developed an integrated
state-space model to jointly model populations growth rates from
individual counts and hunting bags data for three hunted species of
mountain Galliformes in Italy. We examined population trends at various
spatial scales and disentangled the potential effect of game management
plans from biological factors. The integration of counts and bags
succeeded in improving growth rate parameter precision and in reducing
proxy-specific bias by increasing the sample size and extending data
series length. On a 19-year basis, all three species exhibited negative
mean growth rates. We did not find strong regional patterns for Rock
ptarmigan and Rock partridge, as a likely consequence of prevailing
effects of local environmental conditions on population growth rate.
Black grouse eastern populations exhibited lower growth rate than
western populations. Our paper demonstrates that an integrated model of
different index of population size of game species can provide more
accurate values than separate analysis, we advocate to consider such an
approach for other wildlife monitoring cases for which data is scarce.
Effects of solar parks on soil quality, CO2 effluxes and vegetation under Mediterranean climate
Authors: Lambert Quentin , Bischoff Armin , Cluchier Alexandre , Cueff Sixtine , Gros Raphael
Published: June 2021

Solar energy is increasingly used to produce electricity in Europe, but
the environmental impact of constructing and running solar parks (SP) is
not yet well studied. Solar park construction requires partial
vegetation removal and soil leveling. Additionally, solar panels may
alter soil microclimate and functioning. In our study of three French
Mediterranean solar parks, we analyzed 1) effects of solar park
construction on soil quality by comparing solar park soils with those of
semi-natural land cover types (pinewood and shrubland) and abandoned
croplands (abandoned vineyards); 2) the effect of solar panels on soil
microclimate, CO2 effluxes and vegetation. We measured 21 soil
properties of physical, chemical, and microbiological soil quality in
one solar park and its surroundings to calculate integrated indicators
of soil quality. We surveyed soil temperature and moisture, CO2 effluxes
and vegetation below and outside solar panels of three solar parks. Soil
aggregate stability was reduced by SP construction resulting in a
degradation of soil physical quality. Soil chemical quality and a
general indicator of soil quality were lower in anthropogenic (SP and
abandoned vineyards) than in semi-natural (pinewood and shrubland) land
cover types. However, differences between abandoned vineyards
representing the pre-construction land cover type and solar parks were
not significant. Solar panels reduced the soil temperature by 10% and
soil CO2 effluxes by 50% but did not affect early successional plant
communities. Long-term monitoring is needed to evaluate the effects of
solar panels on vegetation.