bluuebunny/crossref_metadata_2025 huggingface dataset:
Generic cuspidal representations of 𝑈(2, 1)
Authors: Nadimpalli Santosh
Published: March 2021

Let 𝐹 be a non-Archimedean local field, and let 𝜎 be a non-trivial Galois involution with fixed field

F
0

F_{0}

.
When the residue characteristic of

F
0

F_{0}

is odd, using the construction of cuspidal representations of classical groups by Stevens, we classify generic cuspidal representations of

U
⁢

(
2
,
1
)

⁢

(

F
/

F
0

)

U(2,1)(F/F_{0})

.
A class of non-weight modules of 𝑈𝑝(𝖘𝖑2) and Clebsch–Gordan type formulas
Authors: Cai Yan-an , Chen Hongjia , Guo Xiangqian , Ma Yao , Zhu Mianmian
Published: March 2021

In this paper, we construct a class of new modules for the quantum group

U
q

⁢

(

s
⁢

l
2

)

U_{q}(\mathfrak{sl}_{2})

which are free of rank 1 when restricted to

C
⁢

[

K

±
1

]

\mathbb{C}[K^{\pm 1}]

.
The irreducibility of these modules and submodule structure for reducible ones are determined.
It is proved that any

C
⁢

[

K

±
1

]

\mathbb{C}[K^{\pm 1}]

-free

U
q

⁢

(

s
⁢

l
2

)

U_{q}(\mathfrak{sl}_{2})

-module of rank 1 is isomorphic to one of the modules we constructed, and their isomorphism classes are obtained.
We also investigate the tensor products of the

C
⁢

[

K

±
1

]

\mathbb{C}[K^{\pm 1}]

-free modules with finite-dimensional simple modules over

U
q

⁢

(

s
⁢

l
2

)

U_{q}(\mathfrak{sl}_{2})

, and for the generic cases, we obtain direct sum decomposition formulas for them, which are similar to the well-known Clebsch–Gordan formula for tensor products between finite-dimensional weight modules over

U
q

⁢

(

s
⁢

l
2

)

U_{q}(\mathfrak{sl}_{2})

.
A composite power quality index for low-voltage active distribution networks
Authors: Thirumala Karthik , Budhavarapu Jayaprakash , Devara Hari Babu
Published: March 2021

In active distribution networks, it is a challenging task for the utility and system operators to identify and analyze the power quality (PQ) disturbance and its cause. Likewise, the consumers are curious about the quality of power supply being provided and the economic impacts of low PQ. Thus, continuous monitoring of the overall quality of the power at the consumer end has become a significant concern in distribution networks. This paper presents a new composite power quality index (CPQI) for low-voltage distribution networks. The CPQI is formulated as a weighted average of five basic parameters, namely voltage level, current harmonic quality, voltage harmonic quality, power factor, and system frequency. The main emphasis is on quantifying the overall quality of the power supply under different PQ disturbance conditions. The CPQI estimate helps in a preliminary investigation of tracking the low PQ location and its source. The proposed CPQI is evaluated on a variety of simulated signals obtained from a CIGRE low-voltage microgrid network. Furthermore, the formulated CPQI is investigated on a LabVIEW-based virtual instrumentation platform with LED loads. It is interpreted from the results that the proposed CPQI is able to evaluate the overall PQ at a load terminal with diverse load conditions subjected to different power quality disturbances.
The elastic-plastic properties of an anti-icing coating on an aluminum alloy: Experimental and numerical approach
Authors: Zhang Wei , Lv Sheng-Li , Gao Xiaosheng , Srivatsan Tirumalai S.
Published: March 2021

In this paper, an attempt is made to describe the method that combines the results obtained from nanoindentation experiment with finite element simulation to determine or establish the elastic-plastic properties of a super-hydrophobic anti-icing coating. The nanoindentation test was conducted and elastic properties of the coating, to include elastic modulus and hardness were obtained. The plastic properties, to include yield stress, monotonic strength coefficient and monotonic strain hardening exponent, were obtained using an inverse, iterative method of experimental measurement in synergism with finite element simulation. This approach, which is a combination of experimental data obtained from the nanoindentation test and results obtained from numerical finite element simulation, was found to be effective for determining mechanical properties of the chosen coating.
Mental health and biological evolution: implications for psychiatry and psychosomatic medicine
Authors: Brüne Martin
Published: March 2021

Psychiatric disorders are common and seem to increase in prevalence worldwide. Most scientific approaches for this phenomenon fail to explain why the majority of mental disorders, unlike most somatic diseases, manifest in early adulthood, why individuals are not more resilient, and why some genes increasing the risk for mental disorders have not been selected against. In this article, an evolutionary perspective on mental health and disorder is taken. This perspective suggests that mismatches between ancestral and contemporary environments contribute to the risk for mental disorders. In addition, predictions from attachment theory and life history theory can explain individual differences with regard to the risk of developing a psychiatric or psychosomatic disorder. Insights from evolutionary approaches to psychiatric and psychosomatic disorders may contribute to improve the prevention and treatment of mental disorders.
Systematic review and meta-analysis of veterinary-related occupational exposures to hazards
Authors: Adebowale Oluwawemimo , Fasanmi Olubunmi Gabriel , Awosile Babafela , Afolabi Monsurat , Fasina Folorunso Oludayo
Published: March 2021

Understanding hazards within the veterinary profession is critical for developing strategies to ensure the health and safety of personnel in the work environment. This study was conducted to systematically review and synthesize data on reported risks within veterinary workplaces. A systematic review of published data on occupational hazards and associated risk factors were searched within three database platforms namely PubMed, Ebscohost, and Google scholar. To determine the proportion estimates of hazards and pooled odds ratio, two random-effects meta-analysis were performed. For the biological, chemical and physical hazards, the pooled proportion estimates were 17% (95% CI: 15.0-19.0, p < 0.001), 7.0% (95% CI: 6.0-9.0%, p < 0.001) and 65.0% (95% CI: 39.0-91.0%, p < 0.001) respectively. A pooled odds ratio indicated the risk of exposures to physical (OR=1.012, 95% CI: 1.008-1.017, p < 0.001) and biological hazards (OR=2.07, 95% CI: 1.70-2.52, p <0.001) increased when working or in contact with animals. The review has provided a better understanding of occupational health and safety status of veterinarians and gaps within the developing countries. This evidence calls for policy formulation and implementation to reduce the risks of exposures to all forms of occupational-related hazards in veterinary workplaces.
Schrödinger’s tridiagonal matrix
Authors: Kovačec Alexander
Published: March 2021

In the third part of his famous 1926 paper ‘Quantisierung als Eigenwertproblem’, Schrödinger came across a certain parametrized family of tridiagonal matrices whose eigenvalues he conjectured. A 1991 paper wrongly suggested that his conjecture is a direct consequence of an 1854 result put forth by Sylvester. Here we recount some of the arguments that led Schrödinger to consider this particular matrix and what might have led to the wrong suggestion. We then give a self-contained elementary (though computational) proof which would have been accessible to Schrödinger. It needs only partial fraction decomposition. We conclude this paper by giving an outline of the connection established in recent decades between orthogonal polynomial systems of the Hahn class and certain tridiagonal matrices with fractional entries. It also allows to prove Schrödinger’s conjecture.
The Difference of Melanin Index in Treatment of MelasmaUsing Non-Hydroquinone Cream and Kligman's Formula
Authors: Mawardi Prasetyadi , Mardiana Mardiana
Published: March 2021

Melasma is a hyperpigmented lesion that occurs on different skin areas that are often exposed to sunlight with predilection arising on the face, neck, and partially on arms or other body parts. It is also known as chloasma or black colour. This pigmentation disorder is common to people with IV-VI type of skin, and those living in the environment with more Ultraviolet (UV) exposure. Yet, its etiology has not been understood clearly. The major influential factors on its pathogenesis are UV radiation exposure, endocrine factor, genetic predisposition, the phototoxic/ photoallergies medicine,anticonvulsant medicine,particularly cosmetics, and nutrition deficiency are reportedly less influential or a rare factor. The aim of this research is to prove the difference between melanin index number on melasma patients having therapies by using non-hydoquinone cream and Kligman’s formula.
Estrogen Receptor and Progesterone Receptor Positive Pigmented Extramammary Paget’s Disease of the Axilla Mimicking Melanoma: A Case Report and Review of the Literature
Authors: Wang Chi Shyan , Hsiang Chen Hsuan , Hao Liu Shih
Published: March 2021

Pigmented extramammary Paget’s disease (EMPD) is a rare variant which is often confused clinically and histologically with melanoma or other pigmented lesions. Herein, we describe a rare case of pigmented EMPD involving the axilla of a 40-year-old female thought initially to represent malignant melanoma clinically. Immunohistochemically, the neoplastic cells are positive for Estrogen Receptor (ER), Progesterone Receptor (PR), and weakly positive for Human Epidermal Growth Factor Receptor 2 (Her2). A review of the literature reveals that the pigmented variant of EMPD could be easily misdiagnosed as melanoma initially and additional confirmatory studies are almost always needed to confirm the diagnosis. The expression of ER and PR in pigmented EMPD is rarely mentioned previously. We believe it should be further investigated for the understanding of pathogenesis in pigmented EMPD and the potential role of adjuvant hormonal therapy. Keywords: Extramammary Paget’s Disease; Axilla; Estrogen Receptor; Progesterone Receptor
Knowledgeof Dermatology Residents on the COVID-19 Pandemic: A Cross-Sectional Study
Authors: Mohammad Fadil , Alhaj Ahmad , Ajimi Ali Al , Jfri Abdulhadi , O’Brien Elzibeth , Jafari Ali Al , Al-Saadi, MD Hatem , Al-Saadi Tariq
Published: March 2021

Background: A novel coronavirus disease (COVID-19) has spread throughout the world leading to a global pandemic. As a result, all healthcare workers have been profoundly affected. Objectives: The goal of our study is to identify the level of knowledge and the effect of COVID-19 on dermatology residents. Methods: A cross-sectional analysis in which 77 dermatology residents from three Gulf Cooperation Council (GCC) countries and Canada completed an online questionnaire-based survey. The questionnaire consisted of four sections: one general information about the resident and three on knowledge, safety measures and impact of COVID-19, with a total of 26 questions. The questionnaire was scored out of 10 with those above the mean considered as having satisfactory knowledge. Results: The mean (SD) knowledge score was 6.25 (1.6). There was a statistically significant difference noted between the GCC countries and Canada in terms of the knowledge score (p-value=0.035). Only 14% of dermatology residents felt competent in managing COVID-19 patients. Seventy percent felt that the pandemic has negatively affected their dermatology training. Conclusion: Dermatology residents demonstrated a difference in knowledge score in relation to the geographic location of the program. Almost 46% of residents illustrated a satisfactory knowledge score about COVID-19. Only a small percentage of residents are confident in treating COVID-19 patients. Subsequently, the need for improved education of residents regarding COVID-19 before redeployment is warranted.
O NON CUMPRIMENTO DA LEI DE GIBRAT EN ECONOMÍAS EN DESENVOLVEMENTO: O CASO DE ECUADOR NO PERÍODO 2000-2013
Authors: SIMBAÑA-TAIPE Luis Enrique , RODRÍGUEZ-GULÍAS María Jesús , RODEIRO-PAZOS David
Published: March 2021

Ecuador foi un dos países latinoamericanos que experimentou cambiossignificativos no campo social e económico nas últimas décadas, converténdose nunha daseconomías máis importantes da rexión. Por iso, resulta relevante coñecer as relaciónsexistentes entre o tamaño e a taxa de crecemento das empresas deste país. Este traballorealiza a súa achega ao contrastar a lei de Gibrat cunha mostra de 25.179 empresas detodos os sectores económicos para o período 2000-2013. Aplicamos o métodoxeneralizado dos momentos en dous modelos de crecemento e utilízase como medida decrecemento as vendas e o emprego. As descubertas obtidas indican que as taxas decrecemento das empresas grandes son menores cás das pequenas. Ademais, a idade tenunha relación non linear, xa que namentres que nos seus primeiros anos de vida a relacióné negativa, a determinada idade cambia a positiva. Esta investigación achega evidenciaspara a orientación da política pública en países que se atopan en desenvolvemento.  Abstract: Ecuador is of the Latin American countries experiencing significant changes inthe social and economic field in recent decades, becoming one of the most importanteconomies in the region. Therefore, it is relevant to know the existing relationshipsbetween the size and growth of companies in this country. This study accomplishes this bycontrasting Gibrat's law in a sample of 25,179 companies from all economic sectors for theperiod 2000-2013. We apply the generalized method of moments in two growth modelsand it is used as a measure of growth regarding both sales and employment. Findingsshow that the growth rates of large companies are lower than those of small companies. Inaddition, age has a non-linear relationship, while in the first years of life the relationship isnegative, at a certain age changes to positive. This research provides evidence for theorientation of public policies in developing countries.
O TURISMO COMO FONTE DE RIQUEZA EN GALICIA: ANÁLISE DALGUNHAS EXPERIENCIAS
Authors: MARTÍNEZ ROGET Fidel , CASTRO DOMÍNGUEZ María Nava , FRAIZ BREA José Antonio
Published: March 2021

Aínda con algunhas experiencias previas, Galicia mantívose allea ao boomturístico que nos anos sesenta experimentou boa parte do territorio español e foi a partirda aprobación do Estatuto de Autonomía cando se comeza a sentar as bases dodesenvolvemento do turismo na Comunidade. Nas últimas décadas a actividade turísticaexperimentou un importante crecemento contando na actualidade cunha ofertaimportante e diversificada. Unha das características máis importantes da actividadeturística en Galicia é, xustamente, que non depende dun único tipo de turismo. Nestetraballo analízase o Camiño de Santiago como un recurso estratéxico do turismo enGalicia, e tamén o potencial doutras modalidades de turismo como son o turismo termal eo turismo rural. Paralelamente ao crecemento da oferta, a demanda tamén experimentouun auxe importante. O turismo representa na actualidade máis do 11% do PIB e o 12% doemprego da Comunidade. Incrementar a duración das estancias, reducir a estacionalidadeturística, incrementar o peso do turismo internacional e orientar a actividade cara unhasenda compatible co desenvolvemento sostible, son algúns dos retos a arrostrar nunfuturo inmediato.
Regulación Financeira e crise: onte, hoxe e mañá
Authors: Quintás Seoane Juan Ramón
Published: March 2021

O tema obxecto da miña intervención, “Regulación financeira e crise: pasado,presente e futuro”, aborda algunhas das cuestións primordiais na discusión financeiraacadémica e profesional nos momentos actuais, e vouno desenvolver ao longo de tresseccións:I. O cambiante equilibrio entre Mercado e intervención pública.II. A regulación post-criseIII. Avaliación da situación actual
Modification of the Ghosh model structure in inter-sectoral analysis
Authors:   Institute of General Energy of the National Academy of Sciences of Ukraine, 172 Antonovycha str., Kyiv, 03150, Ukraine, Kulyk М.M.
Published: March 2021

The current Ghosh model is based on the use of value-added forecast data. The forecasts of gross domestic product and value added have long and regularly been developed by different national and international economic and financial structures, including governmental ones. The level of methods and accuracy of such forecasts is quite high as compared with the final demand forecasts on which the Leontief model is based. Therefore, from the econometric point of view, the accuracy of predictions of output made by using the Ghosh model should be at least not worse than that provided by the classical Leontief model. The modified Ghosh model formally differs from its current model by the presence of a new matrix. However, this difference is only a structural feature, and in mathematical terms these models are identical. At the same time, the modified Ghosh model is more attractive and promising than the current one due to the following factors. It uses one matrix instead of two matrices that appear in the current model. The modified model has a structure (unlike the current one) similar to the structure of the classical Leontief model. Due to this, the modified model is more understandable and easy to use. However, the most important feature lies in the fact that the use of a new matrix significantly expands the possibilities of theoretical research within the input-output structures. Due to constructing a new matrix in the modified Ghosh model, new relations between the vectors of final demand and value added were discovered, which can be efficiently used in balancing the system of input-output matrices. It was also established that the corresponding matrices of the classical Leontief model and the modified Ghosh model have identical diagonal elements in pairs, and this is useful in various analytical studies. Keywords: modified Ghosh model, input-output, Leontief model, value added, final demand
Modeling of the combined operation of a solar photovoltaic power plant and a system of electric energy storage
Authors:   Institute of General Energy of the National Academy of Sciences of Ukraine, 172 Antonovycha str., Kyiv, 03150, Ukraine, Buratynskyi I.M. , Nechaieva T.P. ,   Institute of General Energy of the National Academy of Sciences of Ukraine, 172 Antonovycha str., Kyiv, 03150, Ukraine
Published: March 2021

In view of the dependence of power generation at photovoltaic solar power plants on the level of intensity of solar radiation and cloud cover, their operation creates a number of problems in the power system. This article describes the problems of operation of such power plants of non-guaranteed capacity during their parallel operation as a part of the Unified Energy System of Ukraine. One of the measures of stabilizing the operation of power plants of non-guaranteed capacity is the use of systems of electric energy storage. The article describes the conditions of electrical connection, which ensure the possibility of combined operation of a system of electric energy storage and a photovoltaic solar power plant. The article presents the developed mathematical model of the combined operation of a photovoltaic solar power plant (PSPP) and a system of electric energy storage. We consider the daily mode of recharging from a PSPP and discharging batteries into the power system in order to preserve the excess of generated electricity at the PSPP, which earlier was lost due to the restriction on inverters caused by the overload with photovoltaic power. The model enables one to identify the key parameters of batteries – power and capacity, taking into account the physical and technical features of the operation of battery storage as to the conversion efficiency, the number of working cycles and the depth of possible discharge depending on the structure of PSPP equipment and solar radiation intensity. Using the developed model, we determined the values of power, charging and discharging capacities of a lithium-ion system for storing electrical energy, when it works together with a 10 MWAC photovoltaic solar power plant at different overload factors. The article presents some results of technical and economic assessment of the combined operation of a PSPP and a lithium-ion system for storing electrical energy. The results showed an increase in the power and capacity of a storage device with increase in the overload factor of PSPP, which leads to the growth of cost of electrical energy at their combined work. At the same time, the amounts and quality of electricity supplied increase. Keywords: mathematical model, photovoltaic solar power plant, system of electric energy storage, cost of electricity, power system
Mathematical modeling of heat transfer in the film-substrate-thermostat system during heating of an electrically conductive film by a high-density pulse current
Authors: Kuzmichev Nikolay D. , Vasyutin Mikhael A. , Danilova Ekaterina V. , Lapshina Elena A.
Published: March 2021

Mathematical modeling of heat transfer in the film-substrate-thermostat system with a pulsed flow of high-density current through an electrically conductive film has been carried out. On the basis of the simulation, the analysis of the heating of a niobium nitride film with a high resistivity near the critical temperature of the transition to the superconducting state is made. The inhomogeneous heat conduction equation which is solved numerically, simulates heat transfer in the film-substrate-thermostat system for the third on the left and the first on the right initial boundary value problem. Using the symmetry of the problem, the parameter H is determined, which is equal to the ratio of the heat transfer of the film surface to its thermal conductivity; this parameter is necessary for effective heat removal. It is shown that effective heat removal from films can be provided by current-carrying and potential clamping contacts made, for example, of beryllium bronze. This makes possible to study the current-voltage characteristics of superconductors near the critical transition temperature to the superconducting state with high-density currents (104−105A/cm2) without significant heating of the samples.
10.15507/2079-6900.23.202101.91–109
Authors: Martynov Sergey I. , Tkach Leonilla Yu.
Published: March 2021

A hydrodynamic mechanism of movement of a micro/nanomotor with a dipole charge induced by an electro-catalytic reaction on its surface and the formation of charges in the surrounding liquid is proposed. For this, the dynamics of a dipole aggregate in a cloud of small oppositely charged particles in a viscous fluid surrounding it is simulated. Under the action of the field of the aggregate, the particles in the cloud are set in motion, which forms a flow in the surrounding fluid. In turn, the flow creates a hydrodynamic force that moves the aggregate. The hydrodynamic interaction of all particles in the cloud with each other and with the dipole aggregate is taken into account at their different distributions in the liquid around the dipole. The total charge of all small particles can be either equal to zero or have a non-zero value. The calculations carried out confirmed the possibility of the dipole unit to move in all the cases considered as a result of action of the hydrodynamic force created by the formed flow of the surrounding fluid. In this case, the speed and direction of dipole movement significantly depends both on the distribution of small particles in the surrounding liquid and on their total charge. As the result of asymmetry in the distribution of small charged particles in the surrounding fluid, dipole unit will move not only in longitudinal but also in transverse direction. This leads to the need to use some mechanism of controlling its movement. As such a mechanism the action of an external field can be used, orienting the dipole unit in a given direction of motion. It is proposed to use an external magnetic field for such control. In this case, the dipole aggregate must have a magnetic moment due to the presence of a magnetizable nucleus inside the particles.
Agrotechnical and Energy Performance of Tillage Tools
Authors: Parkhomenko Galina G. , Bozhko Igor V. , Kambulov Sergey I. , Pakhomov Viktor I.
Published: March 2021

Introduction. One of the areas of agricultural production is crop production. At the same time, it is necessary to take into account all available possibilities of reducing the energy consumption and labor required for tillage operations that can be achieved by using energy efficient tillage tools. Materials and Methods. In the course of the research, an agrotechnical and energy assessment of the technological process of soil cultivation performed by tillage tools was carried out. The agrotechnical assessment includes identifying the indicators of unevenness of the tillage tool travel depth, soil pulverization, ridging, and the content of erosion threatening particles. As an energy assessment, the indicator of draught created by a tillage tool was taken. The researches were carried out for various configurations of the chisel cultivators with flat and curved hoes, and elements made of polymer. Results. The data of agricultural assessment and draught of chisel cultivators were obtained for various agricultural backgrounds: winter wheat stubble with preliminary disking in one track, winter barley stubble with preliminary disking in one track, and autumn fallow on the background. Discussion and Conclusion. According to the results of the research, it was found that, in terms of quality indicators, the tillage tools meet the agrotechnical requirements for a given processing depth of 25–35 cm. The operation of the chisel equipped with a curved hoe is characterized by the highest presence of clods up to 5 cm (91–96%). The ridge height was 6.8–8.0 cm for all tillage tools. It has been established that the tillage tools are advisable to be uses for anti-erosion soil cultivation. In terms of preserving plant and crop residues, a chisel with a curved hoe providing their content by 9.5–28.6% more than with a polymer of 13.2–14.3%. The chisel with polymer has the smallest draught of 7.6 kN, which is 18.28% lower in comparison with tillage tools equipped with a flat hoe.
GENDER IDEOLOGY: AN ANALYSIS OF ITS DISPUTED MEANINGS
Authors: Hamlin Cynthia Lins
Published: March 2021

Abstract In the last few years, a number of genealogical studies have been published about recent historical processes that enabled the emergence of the discourse on “gender ideology” as a “weapon in the culture war.” As some of these studies suggest, what is at stake is an alternative project of knowledge and truth production. Little or no attention, however, has been given to the meanings of gender ideology internal to feminist and gender theories. Rejecting the idea that gender ideology can be reduced to a straw man produced by a conservative agenda, I propose a brief history of ideas associated with the concept, foregrounding the work of sociologist Viola Klein, whose reflections on the sociology of knowledge represent one of the first academic investigations of gender ideology. In illustrating the plethora of meanings associated with the concept, I argue that they converge towards a radical negation of the anti-gender discourse of the global right.
Erdő egészségi állapot vizsgálatok a KASZÓ-LIFE projekt keretében
Authors: Koltay András , Fürjes-Mikó Ágnes , Tenorio-Baigorria Imola , Eötvös Csaba Béla , Horváth László
Published: March 2021

A 2014-2018 között megvalósult „KASZÓ-LIFE” program keretében élőhely rehabilitáció történt a KASZÓ Zrt. területén, enyves éger (Alnus glutinosa (L.) Gaertn.) és kocsányos tölgy (Quercus robur L.) állományokban. A területen vízvisszatartó létesítmények segítségével próbálják csökkenteni, illetve lassítani a talajvíz süllyedését, javítani az erdők talajának vízháztartását, és ezen keresztül az erdők egészségi állapotát. Az erdők egészségi állapotának megfigyelésére mintaterületeket jelöltünk ki, ahol évente két alkalommal rögzítettünk adatokat. Az adatokat összevetettük a talajvíz, csapadék és meteorológiai mérések eredményeivel. A rendszeres egészségi állapot felvételezésekkel felmértük a bekövetkezett változásokat, és meghatároztuk a területen rendszeresen előforduló kárformákat és ezek kiváltó okait. Az eddigi vizsgálatok adatai azt mutatják, hogy mind a tölgyek, mind az égerek esetében 2017-től már kisebb mértékű javulás jelentkezett a kontroll területekhez képest. Ugyanakkor a vizsgált időszak relatív rövidsége miatt még nem lehet egyértelmű következtetéseket levonni a program sikerességéről, de a megfigyelések folytatásával erre is lehetőség nyílik a jövőben.
Talajfaunisztikai- és ökológiai vizsgálatok alföldi reliktum homoki tölgyesekben és a helyükön létesített idegenhonos faállományokban
Authors: Palkó Ákos , Ónodi Gábor , Rédei Tamás , Winkler Dániel
Published: March 2021

Jelen kutatás célja a kiskunsági reliktum homoki tölgyesek és a helyükön létesített idegenhonos (nemes nyár, feketefenyő, akác) ültetvények Collembola faunisztikai és ökológiai vizsgálata volt. A talajmintákat az említett négy állománytípusból gyűjtöttük, három ismétlésben. Összesen 3033 Collembola egyed válogatása és határozása történt meg, melynek során 56 fajt sikerült kimutatnunk. A kumulált fajszám legmagasabb értéke (47 faj) az őshonos homoki tölgyesre volt jellemző, míg ennek kevesebb, mint fele fordult elő a nemes nyár (19), fekete fenyő (22) és akác (23) ültetvényekben. A talajparaméterek Collembola közösségekre gyakorolt hatását vizsgálva pozitív összefüggést találtunk a C/N arány és az ugróvillások abundanciája (r=0,71; F=10,44, p<0,05), valamint a talajok humusztartalma és a Collembola közösségek diverzitása között (r=0,61, F=5,98, p<0,05). A kanonikus korreszpondencia analízis a homoki tölgyesek és az idegenhonos fafajú ültetvények elkülönülését mutatta az elsősorban a pH és a humusztartalom által magyarázott tengely mentén.
Three-dimensional printing in healthcare
Authors:   , Pérez-Sanpablo A. I.
Published: March 2021

This work aims to briefly present the cutting edge of 3D printing innovation in healthcare. This technology is used for surgical planning, medical education, bioprinting of tissues, and medical equipment spare parts in fields like pharmacology, prosthetics, surgery, and regenerative medicine. A review of the last decade was made in the search engines of PubMed and Espacenet. Three authors reviewed titles, abstracts, and keywords separately to identify studies appropriate to the topic. After the initial examination, complete texts of identified relevant studies were obtained and classified according to the authors. Results were synthesized in a narrative literature review. The revision showed that 3D printing has become of common use in the healthcare system since it allows medical personnel to implement customized solutions for each patient, thus reducing the probability of a false diagnostic or treatment. Major applications among the advantages and disadvantages of 3D printing in healthcare were presented. Nowadays, the main challenge in 3D printing is the cost of the equipment and its manufacturing. In the future, the challenges in cost could be reduced, but processing requirements and limited materials may still need further work.
Antibacterial Activity Analysis of Hydroxyapatite Based Materials with Fluorine and Silver
Authors:   , González-Torres V.
Published: March 2021

This investigation aims to evaluate the antibacterial activity of nanostructured hydroxyapatite based materials doped with silver and fluorine, to be used as a biomaterial with antibacterial activity. Four different formulations were prepared by combustion method: hydroxyapatite, hydroxyapatite-fluorine, hydroxyapatite-silver-fluorine and hydroxyapatite-silver, with 2% of the doping agents. X-ray diffraction technique was used to determine the mineralogy, identifying the presence of Ca5(PO4)3OH, Ca2P2O7, Ag3PO4, AgCa10(PO4)7 Ca5(PO4)3F and CaF2 phases for the studied samples. Scanning electron microscopy was used to study the morphological structure and it showed homogeneous crystallization of the hydroxyapatite and the inclusion of dopant agents. The antibacterial activity was determined using a modified inhibition test zone to observe if the bacteria (E. faecalis) was susceptible to the antimicrobial agent by the appearance of the zone of inhibition on the agar plate. Both the hydroxyapatite-silver and the hydroxyapatite-silver-fluorine materials generated an inhibition zone. It was possible to determine the minimum inhibitory concentration needed to kill most viable organisms after 48 hours of incubation using the broth microdilution method, resulting in 75 μg/ml and 200 μg/ml for the hydroxyapatite-silver and the hydroxyapatite- silver-fluorine formulation, respectively. These materials could be used for the development of new biomaterials that can be used in dental applications.
TAŞELİ MASALLARINDA ŞİDDET
Authors: KOTANCI Aykut Yaşar
Published: March 2021

Masallar; zaman, mekân, şahıs ve kurgu bakımından olağanüstülükler taşımalarına rağmen diğer tüm edebi metinler gibi birçok günlük hayat unsurunu kurgusal şekilde yansıtan metinlerdir. Bu kurgulama masal metninin bilinmeyen yaratıcısının elinden çıkabileceği gibi, masalı çeşitli zaman ve mekanlarda anlatan yaşatıcısının da elinden çıkmış olabilir. Ancak her şartta masalın ortaya çıktığı ve yaşamaya devam ettiği bölgenin gerek ekonomik hayat tezahürleri gerekse sosyo kültürel bilinçaltı, kurgulamanın temel dinamiğini oluşturur. Masal metinlerinin hayatın özünden beslenen bu tavırları nedeniyle anlatacakları konuları olumlu ya da olumsuz açıdan değerlendirerek metne dahil etmeme gibi bir durumları söz konusu değildir. Bu nedenle toplum tarafından tasvip edilmeyen kimi olumsuz durumlarda masal metinleri içerisinde çeşitli şekillerde yer alabilmektedirler. Bunlardan biri de kuşkusuz şiddettir. Şiddet, toplumların sosyal yapılarına ciddi zararlar veren ve günümüzde genetiği değiştirildiği için kimi zaman ayırt edilmesi imkânsız hale gelen fiziksel, cinsel, psikolojik veya ekonomik durumların kişi veya grupların üzerinde olumsuz sonuçlar doğuracak şekilde kullanımıdır. Bu makalede günlük hayat içerisinde normalleşmemesi arzu edilen doğrudan veya dolaylı şiddet olaylarının Taşeli Masalları özelinde ne gibi yansımaları olduğu irdelenmeye çalışılacaktır.
Shipping Embryos in a Portable Incubator v1
Authors: Estrada Cortés Eliab , J Hansen Peter
Published: March 2021

This is a protocol to describe how to ship non-frozen embryos
Gross Anatomy for Physical Therapy course
Authors: Glasoe Ward M. , Carey James R. , Dougherty Brendan J.
Published: March 2021

The study of anatomy supported with human dissection is foundational to training of health science professionals. For a student, cadaver dissection offers an active learning experience. For the training of physical therapists, we created a manual that efficiently instructs the dissection of the whole body over the course of 30 laboratory periods. In the spirit of academic collegiality, this letter provides health science educators a direct download link (https://hdl.handle.net/11299/218174) to the dissection manual hosted by the University of Minnesota (USA) Digital Conservancy. No registration is required, the download is free, and the PDF file of the dissection manual can be reproduced or adapted for any educational use.
The Journal Investigación y Educación en Enfermería is Indexed in PubMed Central
Authors: Rodríguez-Gázquez María de los Ángeles
Published: March 2021

As Editor, it is a joy to share with you the great news that the journal Investigación y Educación en Enfermería was accepted for indexation in PubMed Central (PMC), which is the world’s largest repository of knowledge on health sciences. PubMed Central has close to seven million articles in full text and in Open Access that can be recovered through the PubMed search engine.
Excess weight in children living in rural areas related to the nutritional profile and to maternal habits
Authors: Lagares Erika Barbosa , Sousa Paulo Henrique Alves , Resende Karolyne Araujo , Santos Letícia Camilo , Silva Luiz Henrique Rodrigues , Belo Vinícius Silva , Romano Márcia Christina Caetano
Published: March 2021

Objective. To assess the relationship between the nutritional status and eating habits of children aged from five to ten years old and their mothers, living in rural areas.

Methods. A cross-sectional study conducted with 156 children aged from five to ten years old, registered in the Family Health Strategies of the rural area of the Municipality of Divinópolis-MG (Brazil) from July 2017 to April 2018.

Results. The prevalence of excess weight was 27.5%. The following parameters were significantly associated with excess weight in the children: maternal waist circumference (OR=1.04), protein consumption (OR=1.02), irregular consumption of natural juice (OR=5.05), and the most favored socioeconomic level, C1 social stratum (OR=3.54). Regarding the correlation between nutrient intake of the children and their mothers, most of the correlations were weak to moderate, being statistically significant for all the dietary components evaluated (r=0.185 to 0.496).

Conclusion. Maternal nutritional status was related to the child’s excess weight and a weak to moderate correlation was observed for nutrient intake among the children and their mothers. A high prevalence of children with excess weight was observed in the rural areas. The results point to the need to implement collective approaches, targeted at rural families, so as to prevent this problem.
DIATOMOFLíâ??RULA PERIF TICA DE ALGUMAS LOCALIDADES DA BACIA HIDROGRÁFICA DO RIO DESCOBERTO, DISTRITO FEDERAL E GOIÁS, BRASIL, EUNOTIALES (BACILLARIOPHYCEAE): Actinella e Peronia
Authors: Reis Ellen Surer da Costa , De Souza Maria das Graças Machado
Published: March 2021

No Distrito Federal e em Goiás, estudos taxonômicos das Bacillariophyta são escassos. Este trabalho apresenta o levantamento taxonômico das diatomáceas pertencentes aos gêneros Actinella e Peronia do rio Descoberto e alguns de seus afluentes. As coletas foram realizadas em junho e julho de 2003 (perí­odo de seca) e janeiro e fevereiro de 2004 (perí­odo de chuva), em seis estações de amostragem. Foram identificados cinco taxa infragenéricos de Eunotiales, sendo quatro do gênero Actinella e um de Peronia. Todos os taxa registrados foram citações pioneiras para o Estado de Goiás e Distrito Federal.
FENOLOGIA REPRODUTIVA DE Lychnophora pohlii Sch. Bip. (ASTERACEAE) EM ÁREA DE CAMPO RUPESTRE, DIAMANTINA, MG.
Authors: Costa Thaí­s Ribeiro , De Moura Cristiane Coelho , Machado Evandro Luiz Mendonça , Gonzaga Allanne Pillar Dias , Titon Miranda
Published: March 2021

Considerando que o conhecimento da fenologia de espécies  vegetais em comunidades naturais é uma ferramenta importante para a  conservação das populações e ecossistemas, esse estudo teve como objetivo  compreender a fenologia reprodutiva da espécie Lychnophora pohlii,  associando as estratégias reprodutivas  s variações sazonais caracterí­sticas  do ambiente. O estudo foi realizado em uma área de campo rupestre  pertencente ao Campus JK, na UFVJM, em Diamantina, MG. Foram  observadas as caracterí­sticas fenológicas de 26 plantas, no perí­odo de maio  de 2012 a fevereiro de 2013. Foram utilizados dados meteorológicos de  precipitação e temperatura durante o perí­odo de estudo. O padrão fenológico  foi determinado pelo método de intensidade de Fournier, correlação de  Spearman e análise circular. Foram encontradas correlações significativas  entre as fenofases e as variáveis abióticas. A espécie apresentou umcomportamento fenológico bastante sazonal, reflexo da sazonalidade  climática, caracterí­stica da região de estudo.
NOVA ESPÉCIE DE OCOTEA AUBL. PARA A REGIÃO NEOTROPICAL, ESTADOS DE SÃO PAULO E RIO DE JANEIRO, BRASIL.
Authors: Baitello João Batista , Brotto Marcelo Leandro
Published: March 2021

Descreve-se uma nova espécie de Lauraceae para a região  neotropical, sudeste do Brasil, estados de São Paulo e Rio de Janeiro. Ocotea  koscinskii Baitello & Brotto é espécie unissexuada semelhante a Ocotea dispersa  (Nees) Mez, mas difere desta, em especial, pela forma globosa do fruto e  ausência de tépalas remanescentes na cúpula e, inflorescência tirsoidepaniculada.  Diferem entre si ainda pelas ocorrências em estratos diferentes  quando coexistem na Floresta Ombrófila Densa, respectivamente dossel e subbosque.
A ARBORIZAíâ?¡ÃO E SEUS CONFLITOS NO BAIRRO JARDIM DOS ESTADOS, POíâ?¡OS DE CALDAS - MG
Authors: Menezes Leda Carolina Carvalho , Tavares Raí­ssa , Botezelli Luciana
Published: March 2021

O presente estudo consiste no levantamento e análise da arborização de um trecho do Bairro Jardim dos Estados, no municí­pio de Poços de Caldas - MG, tendo como objetivo diagnosticar e mapear os indiví­duos arbóreos presentes na área pública e os conflitos existentes com estruturas urbanas. O processo de arborização é considerado uma estratégia para amenização de impactos ambientais e está associado   manutenção da qualidade de vida. Na área estudada foram encontrados através de estudo de campo, 204 indiví­duos, de 30 espécies, pertencentes a 18 famí­lias. A espécie mais frequente foi a quaresmeira (Pleroma granulosa (Desr.) D. Don), representada por 31,86% dos indiví­duos. O conflito com a rede elétrica foi o mais recorrente (68,63%). Foram encontradas no trecho estudado: 26,7% de espécies nativas; 16,7% de espécies nativas do Brasil, mas não da área estudada; 53,3% de espécies exóticas e 3,3% de espécies naturalizadas. Dentre as soluções para conflitos desta natureza, estão o planejamento da arborização, a adequada manutenção, condução dos indiví­duos no pós-plantio e a adaptação das estruturas urbanas ao ambiente.
DIVERSIDADE DA FLORA FANEROGíâ??MICA DE TRíÅ S MATAS DE GALERIA NO BIOMA CERRADO
Authors: Bambi Paulino , Rezende Renan de Souza , Cruz Takumâ Machado Scarponi , Batista Juan Enrique de Araújo , Miranda Fernanda Gabriela Graciano , Vieira dos Santos Lauana , Gonçalves Júnior José Francisco
Published: March 2021

O objetivo deste estudo foi avaliar a diversidade vegetal de fanerógamas em três matas de galeria no Distrito Federal, Brasil. O estudo foi realizado na Área de Proteção Ambiental Gama-Cabeça de Veado, a partir do levantamento fitossociológico em 12 parcelas paralelas aos córregos das matas de galerias amostradas, totalizando 3600 m2 de área. Foram identificadas 146 espécies, sendo Fabaceae, Myrtaceae e Rubiaceae as famí­lias mais representativas. Apenas sete espécies ocorreram concomitantemente nas áreas estudadas, indicando elevada diversidade, sobretudo em termos de árvores e arbustos. Os valores de riqueza de espécies e diversidade de Shannon foram maiores no córrego Cabeça-de-Veado (JBB), comparado ao córrego Capetinga (FAL) e Roncador (IBGE), respectivamente. Enquanto que a Dominância Absoluta apresentou maiores valores no córrego Roncador, comparado aos córregos Capetinga e Cabeça-de-Veado, respectivamente. Assim, observamos que a diversidade de espécies está relacionada   heterogeneidade ambiental das matas amostradas, as quais estão relacionadas as caracterí­sticas edáficas e do regime hidrológico.
FENOLOGIA DE Vellozia ramosissima L. B. Sm. (VELLOZIACEAE) EM ÁREAS DE ââ?¬Å?COMPLEXO RUPESTREââ?¬Â QUARTZ TICO E FERRUGINOSO
Authors: Batista Denise de Souza , Fonseca Darliana da Costa , Costa Thaí­s Ribeiro , Moura Cristiane Coelho de , Machado Evandro Luiz Mendonça
Published: March 2021

O estudo teve como objetivo compreender a fenologia reprodutiva e vegetativa da espécie Vellozia ramosissima, associando o padrão fenológico  s variações sazonais caracterí­sticas do ambiente. O estudo foi realizado em áreas do complexo rupestre quartzí­tico e ferruginoso no municí­pio de Conceição do Mato Dentro, MG. Foram observadas mensalmente as caracterí­sticas fenológicas de vinte plantas, no perí­odo de jul/2015 a jul/2016. Foram utilizados dados meteorológicos de precipitação, temperatura, umidade e velocidade do vento para o perí­odo de estudo. O padrão fenológico foi determinado pelo método de intensidade de Fournier, correlação de Spearman e análise circular. Foram encontradas correlações significativas entre as fenofases e as variáveis abióticas apenas para dispersão dos frutos e produção de folhas novas. A espécie apresentou um comportamento fenológico bastante sazonal para maior parte dos eventos, reflexo da sazonalidade climática, caracterí­stica da região de estudo. Foram observados padrões distintos entre as áreas para todas as fenofases avaliadas.
CAN PHYTOHORMONES STIMULATE INITIAL GROWTH OF BRAZILIAN SAVANNA TREES?
Authors: Soares Luisa Vieira B. , Oliveira Sarah Christina Caldas , Braga Letí­cia Regina , Sampaio Alexandre Bonesso , Schmidt Isabel Belloni
Published: March 2021

The initial growth of Cerrado tree species is slow, what impairs large scale seedling production for planting. The effect of plant hormones is well known for crop species, in this study we aimed to test the effect of two commercial biostimulants on the initial growth of six native tree species widely distributed and abundant in Cerrado. We applied nine treatments using foliar spray: T0 - control (water); commercial Progibbí® (gibberellic acid) T1 - 0,8 mL.L-1; T2 - 1,6 mL.L-1; T3 - 2,4 mL.L-1 and T4 - 3,2 mL.L-1; commercial Stimulateí® (gibberellic acid, cytokinin and auxin): T5 - 6,0 mL.L-1; T6 - 8,0 mL.L-1; T7 - 12,0 mL.L-1; T8 - 18,0 mL.L-1 and T9 - 24,0 mL.L-1. We measured plant height and diameter every other week and recorded root and shoot biomass and leaf area after 111 growing days. No treatment significantly increased plantsââ?¬â?¢ initial growth, which may only happen after higher and/or repeated use of these two biostimulants, especially Progibbí® for Anacardium humile and Jacaranda cuspidifolia and Stimulateí® for Hymenaea stignocarpa and Copaifera langsdorfii.
Aplicativo de gamificação e realidade aumentada para trilhas educativas: ferramenta pedagógica para conscientização ambiental
Authors: Caldas Ana Luiza Rios , Balbino Andressa Estela , De Souza Lucas Guimarães Cabral , Soares Vania de Araujo , Soares Augusto César
Published: March 2021

O objetivo deste trabalho é apresentar o aplicativo Missão Nascente, seu desenvolvimento e potencial como ferramenta de ensino-aprendizagem no ambiente natural para promover o uso de trilhas interpretativas. O aplicativo foi desenvolvido para ser utilizado na Trilha da Nascente do Jardim Botânico de Brasí­lia (JBB), a partir dos recursos pedagógicos de gamificação e realidade aumentada por meio de QR codes. O jogo é dividido em três temporadas de acordo com mudanças do Bioma Cerrado ao longo do ano, permitindo que os usuários visualizem como a disponibilidade de água interfere na vegetação desse Bioma e incentivando seu retorno para completar o jogo. Foram abordados os temas Ecologia, Botânica, Etnobotânica, Fenologia, Zoologia e Legislação ambiental. O aplicativo tem, portanto, potencial de melhorar as experiências dos visitantes do JBB, ao evidenciar detalhes interessantes da vegetação, aumentar a taxa de retorno, proporcionar visitas autoguiadas e servir como ferramenta pedagógica.
A digitalização de quatro herbários da Amazônia e seus equipamentos, processos e atual situação
Authors: Alves Vieira Lucas Levino , De Souza Helena Joseane Raiol , Furtado Clayton Marcello
Published: March 2021

O herbário é uma coleção botânica destinada a catalogação de materiais botânicos e auxiliar estudos referentes a estes. Nos dias atuais, faz-se necessário que essas instituições se modernizem, de modo a fazer fluir o conhecimento concentrado nas coleções para o resto da sociedade. Uma das maneiras é a digitalização das coleções, transformando o material antes apenas em formato fí­sico, agora também em formato digital. O trabalho que se segue aplicou um questionário para quatro herbários na região amazônica, com o intuito de recolher informações sobre os processos aplicados na digitalização de suas respectivas coleções. Notou-se a diversidade de equipamentos utilizados, variando de acordo com o tamanho das coleções e o investimento que as mesmas recebem, assim como os processos envolvidos.