bluuebunny/crossref_metadata_2025 huggingface dataset:
Short Review of Liposteroid: A Novel Targeted Glucocorticoid Preparation for Treatment of Autoimmune and Inflammatory Diseases
Authors: Saha Biplab K. , Milman Nils T.
Published: December 2021

This paper briefly reviews the safety and efficacy of liposteroid in different inflammatory and non-inflammatory diseases. Corticosteroids (CS) are the first-line therapy in many inflammatory and autoimmune disorders. Although highly efficacious, long-term use of CS is limited due to the occurrence of significant side effects. Liposteroid, which is a liposomal formulation of dexamethasone palmitate, possess more potent anti-inflammatory and immunosuppressive properties compared to dexamethasone sodium phosphate. These two formulations have markedly different lipid solubility, resulting in different pharmacokinetic and pharmacodynamic properties. Liposteroid has been used with success in patients with rheumatoid arthritis, macrophage activation syndrome, and idiopathic pulmonary hemosiderosis. In addition, liposteroid has been used in some non-inflammatory diseases. Moreover, we conceive that liposteroid may have a beneficial effect in patients, who are critically ill due to COVID-19, and suffer from the macrophage activation syndrome.
Spontaneous Multiple Haematomas in a Patient with Severe COVID-19 Fully Recovered with a Conservative Approach
Authors: Alavi-Naini Roya , Gorgani Farzaneh , Rahmati Zohre , Pourdehghan Saemeh , Keikha Maryam , Farzad Zahra
Published: December 2021

A significant number of hospitalized patients with COVID-19 are prone to thromboembolic events including deep vein thrombosis, pulmonary embolism, cerebrovascular accident, and myocardial infarction. However, some COVID-19 patients have a higher risk of bleeding that is associated with an increased risk of mortality. We report a 71-year-old woman who was a confirmed case of COVID-19 admitted for pulmonary involvement and complicated acute renal failure. During hospitalization, she suffered from a sudden onset of severe pain in the lower left abdomen as well as a sudden drop in blood pressure and hemoglobin. Haematomas in the left rectus and obturator internus muscle were observed in abdominal and pelvic computed tomography scan. Signs of haemorrhage were also seen in the anterolateral aspect of the bladder with extension to the paracolic, subdiaphragmatic, perihepatic and, perisplenic spaces. The patient was totally recovered by a conservative approach. Bleeding tendency could be a serious complication, especially, in COVID-19 patients with complicated renal failure that receive heparin prophylaxis.
Dostalík, P. Nakládání s cizí věcí v soukromém právu
Authors: Skřejpek Michal
Published: December 2021

DOSTALÍK, P. Nakládání s cizí věcí v soukromém právu. Praha: Leges, 2019, 151 s.
International collaborative study to evaluate and calibrate two recombinant L chain Ferritin preparations for use as a WHO International Standard
Authors: Fox Bernard , Roberts Graham , Atkinson Eleanor , Rigsby Peter , Ball Christina
Published: December 2021

Objectives

To evaluate and calibrate two candidate preparations for the 4th International Standard for Ferritin (Human, Recombinant) (codes: 19/118 and 19/162) against the 3rd International Standard for Ferritin (Human, Recombinant) (code: 94/572), and three serum commutability samples in an international collaborative study involving 12 laboratories in nine countries.

Methods

Eleven of the 12 participating laboratories performed Ferritin quantitation using automated assay platforms and one laboratory used a manual ELISA kit.

Results

There was better overall agreement between all laboratories and between assay methods for the potency of preparation 19/118 than for preparation 19/162. The overall geometric mean potency (from all methods) of the candidate 4th International Standard, 19/118, was 10.5 µg/ampoule, with inter-laboratory variability, expressed as % geometric coefficient of variation (GCV), of 4.7%. Accelerated stability studies have predicted both 19/118 and 19/162 to be very stable for long term storage at −20 °C.

Conclusions

The candidate 4th International Standard for Ferritin (Human, Recombinant) (19/118) has been shown to be immunologically similar to the 3rd International Standard for Ferritin (Human, Recombinant) (94/572). It was recommended to and accepted by the WHO Expert Committee on Biological Standardization that 19/118 be established as the 4th International Standard for Ferritin (Human, Recombinant) with an assigned potency of 10.5 µg/ampoule and expanded uncertainty limits 10.2–10.8 µg/ampoule (95% confidence; k=2.23).
Spectral Properties of Dissipation
Authors: Ván Peter , Kovács Róbert , Vázquez Federico
Published: December 2021

The novel concept of spectral diffusivity is introduced to analyze the dissipative properties of continua. The dissipative components of a linear system of evolution equations are separated into noninteracting parts. This separation is similar to mode analysis in wave propagation. The new modal quantities characterize dissipation and are best interpreted as effective diffusivities, or, in case of the heat conduction, as effective heat conductivities of the material.
Effects of some level density models and γ-ray strength functions on production cross-section calculations of 16,18O and 24,26Mg radioisotopes
Authors: Kavun Y. , Makwana R.
Published: December 2021

Oxygen and magnesium isotopes can be used in nuclear reactor materials as cooling, shielding, coating, electronics etc. They can also occur through nuclear reactions during the reactor operation. The exposure of high energy gamma can change the material and its properties, and hence its objective of selection may not remain satisfied. Thus, it is required to study the cross section of different reactions on nuclear reactor materials to understand their sustainability for the properties, for which they are chosen. In the scope of this study, theoretically, different level density model calculations and γ-ray strength functions have been performed for (γ, p) reaction for 16,18O and 24,26Mg nuclei using TALYS 1.9 and EMPI˙RE 3.2.2 codes. Also, semi empirical (γ, p) formula by Tel et al., have been calculated and compared with all results. The effect of different level density models defined in these codes on gamma strength has been studied. Finally, the consistency of these obtained data with EXFOR data have been investigated.
Robust Object Detection in Colour Images Using a Multivariate Percentage Occupancy Hit-or-Miss Transform
Authors: Macfarlane Fraser , Murray Paul , Marshall Stephen , Perret Benjamin , Evans Adrian , White Henry
Published: December 2021

The extension of Mathematical Morphology to colour and multivariate images is challenging due to the need to define a total ordering in the colour space. No one general way of ordering multivariate data exists and, therefore, there is no single, definitive way of performing morphological operations on colour images. In this paper, we propose an extension to mathematical morphology, based on reduced ordering, specifically the morphological Hit-or-Miss Transform which is used for object detection. The reduced ordering employed transforms multivariate observations to scalar comparisons allowing for an order to be derived and for both flat and non-flat structuring elements to be used. We also compare other definitions of the Hit-or-Miss Transform and test alternative colour ordering schemes presented in the literature. Our proposed method is shown to be intuitive and outperforms other approaches to multivariate Hit-or-Miss Transforms. Furthermore, methods of setting the parameters of the proposed Hit-or-Miss Transform are introduced in order to make the transform robust to noise and partial occlusion of objects and, finally, a set of design tools are presented in order to obtain optimal values for setting these parameters accordingly.
Posthumanist Solidarity: The Political and Ethical Imaginations of Artificial Intelligence from Battlestar Galactica to Raised by Wolves
Authors: Gefen Alexandre
Published: December 2021

A number of twenty-first century television series explore the irruption of AI devices into our daily lives, highlighting not only human interaction with AI, but posing disturbing and new ontological considerations: humans wondering how they are different from machines, or those of machines being unaware that they are machines and only discovering so belatedly. Within these series, the emergence of these thoughts is accompanied by the staging of interspecies friendship and romance: the metaphysical question of freedom gives way to the question of attachment, and then the problem of autonomy gives way to that of interdependence. It is this passage from metaphysical speculation to political reflection that I would like to demonstrate.
Thiol/disulfide homeostasis and oxidant status in children with congenital heart disease
Authors: Sogut Ibrahim , Kar Fatih , Senat Almila , Duymaz Tomris , Erel Ozcan , Salihoglu Ece
Published: December 2021

Objectives

This article aims to explain the altered oxidative status and thiol/disulfide homeostasis before and after surgery in children with congenital heart disease (CHD).

Methods

Blood samples were taken from the patients (n=50) before the operation (baseline), at the 1st hour, and at the 24th hour after the operation. Thiol-disulfide levels, total antioxidant status (TAS), total oxidant status (TOS), oxidative stress index (OSI), myeloperoxidase (MPO), ceruloplasmin, albumin, ischemia-modified albumin (IMA), and prolidase activities of all samples were measured. Pre-operative oxygen saturation (SaO2) values and neutrophil/lymphocyte ratios (NLR) were also measured.

Results

Before the operation, TOS, OSI, MPO, ceruloplasmin, IMA, NRL, and disulfide levels were higher in the cyanotic group than in the acyanotic group. When the indicated three different time points were compared, the TOS, OSI levels, and MPO activities of the 24th hour were significantly lower than the baseline and 1st hour. In comparison, ceruloplasmin levels of 1st hour were significantly higher than of the baseline and 24th hour. Native thiol and total thiol levels in the baseline group were significantly lower than in the 1st and 24th hours. Disulfide levels of the 24th hour were significantly lower than of the baseline.

Conclusions

The operation leads to changes in the thiol-disulfide balance and oxidant status in CHD.
Academician Jonas Kubilius: works dedicated to the history of Lithuanian mathematics
Authors: Banionis Juozas
Published: December 2021

The rise of the Lithuanian mathematical school in the second half of the 20th century is associated with the development of probability theory and its application, and the foundations of that school were insightfully laid by the famous Lithuanian mathematician Jonas Kubilius. However, the academician also had a second vocation – the history of mathematics. At the end of the 20th century, he purposefully researched the mathematical legacy of the poet, bishop A. Baranauskas, recognizing him as the first Lithuanian mathematician researcher of the second half of the 19th century.

At the beginning of the 21st century, J. Kubilius undertook a detailed implementation of the idea of a work in the history of Lithuanian mathematics. For this purpose, an informal group of specialists was convened, the content of the work was planned, and the research-based book series ``From the History of Lithuanian Mathematics'' was published. The fourth book in this series, Mathematics in Lithuanian Higher Education Institutions in 1921–1944, presents the research of an academic who reveals the situation of mathematics in universities in Kaunas and Vilnius.

In addition, the memoirs of mathematics history by J. Kubilius, dedicated to mathematicians Z. Žemaitis, G. Žilinskas and V. Statulevičius, should be mentioned.

The article, at the end of which fragments of the author's memories are presented, is dedicated to the centenary of the birth of Academician J. Kubilius.
Folklorinė baladė lietuviškojoje tradicijoje
Authors:   , Liugaitė-Černiauskienė Modesta
Published: December 2021

The folk ballad in Lithuanian tradition
State of endothelial function, lipid spectrum and features of coronary vessels structure of rats with obesity and insulin resistance under iodine deficiency conditions
Authors:   Ivano-Frankivsk National Medical University, Ukraine, Todoriv T.V. , Bagriy M.M. ,   Institute of the Pathology and Cytology, Clinik of Medical School of Brandenburg, Neuruppin, Germany, Voronych-Semchenko N.M. ,   Ivano-Frankivsk National Medical University, Ukraine
Published: December 2021

The aim of the study was to investigate the changes of endothelin-1 content, blood lipid spectrum parameters, structural features of coronary vessels of rats with insulin resistance and obesity under conditions of adequate iodine supply and iodine deficiency. For the modeling of insulin resistance, rats were kept on high-fructose, obesity – high-calorie, iodine deficiency – iodine deficiency diets. It was found that the development of insulin resistance, obesity and iodine deficiency was accompanied by an increase of endothelin-1 level in 2.41, 2.31 times and at 80.17% in blood serum, relative to the data in intact animals. Insulin resistance and obesity under conditions of limited iodine supply leads to the significant changes in endothelial dysfunction (increase in the level of endothelin-1 in 3.02 and 2.50 times relative to control and at 67.38 and 39.40% – relative to mono iodine deficiency) and dyslipidemia (increase in the atherogenic factor at 48.08% – 4.20 times relative to isolated insulin resistance, obesity and iodine deficiency). Such changes were consistent with the structural violations. In insulin-resistant animals focal unevenness of the outer and inner contours, their uneven thickness, areas of homogeneous enlightenment were observed under the conditions of iodine deficiency in the arterioles and minor arteries of the myocardium. In obese animals under the conditions of iodine deficiency, the vessels of the microcirculatory bed were dilated and overflown with erythrocytes. Endotheliocytes with nuclei elongated along the wall, in some places there is a swelling of the cytoplasm of endotheliocytes. In the wall of minor arteries there are transparent vacuoles, areas of homogeneous eosinophilia, which are caused by the accumulation of glycoproteins. Thus, the development of insulin resistance and obesity in iodine deficiency is accompanied by more significant changes in endothelial function and an increase in proatherogenic fractions in the blood lipid spectrum, as evidenced by changes in the structural organization of myocardial vessels than with proper iodine supply.
FORMATION MECHANISMS OF LONG-TERM POTENTIATION IN THE HIPPOCAMPUS NEURONS
Authors:   Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv, Ukraine, Nastenko A.O. , Veselovsky N.S. ,   Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv, Ukraine
Published: December 2021

Long-term potentiation is involved in the mechanisms of synaptic plasticity, provides such processes as memory and learning, and allows the nervous system of a living organism to adapt to changing environmental conditions. It is an increase in the efficiency of glutamatergic synapses, which lasts much longer than other types of potentiation in the nervous system. Despite the fact that long-term potentiation has been studied in detail, the physiological mechanisms of its formation, which lead to an increase of synaptic weight, remain incompletely understood. Well known that long-term potentiation is closely dependent on the processes of rapid axonal transport. However, how axonal transport is related to the mechanisms of long-term potentiation induction and expression, what substances are transported through axons, and how they affect the synaptic activity of postsynaptic neurons is currently unknown. We review here the main physiological mechanisms that occur in the neurons of the hippocampus and contribute to the formation of long-term potentiation. The works of recent years devoted to the study of the participation of synaptic tagging, retrograde signaling, morphological modifications and axonal transport in formation of the long-term potentiation are analyzed.
SIGNIFICANCE OF DX-CENTERS FOR ACOUSTIC INDUCED RECONSTRUCTION PROCESSES OF DEFECTS IN GaN/AlGaN
Authors:   V.  E. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine, Olikh Ya. M.
Published: December 2021

The experimental results of amplitude effects are compared (from an ultrasonic wave deformation amplitude – a tension τUS) for electron concentration and changes of the lattice parameter on the same sample GaN/Al0.2Ga0.8N/GaN/AlN. It has been experimentally established that at ultrasonic loading (frequency 5–10 MHz, amplitude – towards 2·104 W/m2) there is a nonlinear increase in the effective electron concentration and an increase in the lattice parameter; at the same time, the mobility of electrons decreases and μН(τUS) ~ |τUS|. The energy parameters of the acoustic activation charge carriers process are calculated from the approximation of experimental amplitude changes – Еа ≈ 50 meV and γn(300 K) ≈ 2,5·10-27 m3. The amplitude dependences (increase) of the relative lattice parameter change (ΔС/С) from the tension τUS have been investigated experimentally at different frequencies. The energy of DX-center transition UDX ≈ 108 meV and the activation volume of this transition γDX ≈ 6,6·10-27 m3 are calculated from the approximation of the experimental amplitude changes. The revealed correlation of the magnitude of acoustic induced effects in different experiments allows to build a quantitative energy model of the acoustic action process based on the properties of metastable DX centers. It is shown that the acoustic induced process occurs due to the dimensional displacement of the DX-center atom (a background impurity of silicon atoms) from the non-central position to the centrally symmetric one; herewith DX-center is ionized, one goes into the d0-state. It is believed that the changes are most likely to occur near penetrating dislocations in the barrier layer Al0.2Ga0.8N – acoustic modulated oscillations of the distance between the possible positions of the donor atom lead to a decrease in the barrier to the displacement of the defect.
INVESTIGATION OF THE SURFACE PLASMON-POLARITONS EXCITATION EFFICIENCY ON ALUMINUM GRATINGS, TAKING INTO ACCOUNT DIFFRACTED RADIATION
Authors:   V.  E. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine, Indutnyi I. Z.
Published: December 2021

Detailed studies of the efficiency of excitation of surface plasmon-polaritons (SPP) on aluminum gratings with a period a = 694 nm, which exceeds the incident wavelength of λ = 632,8 nm, have been carried out. The gratings relief depth (h) range was 6–135 nm. Research samples were formed on As40S30Se30 chalcogenide photoresist films using interference lithography and vacuum thermal deposition of an opaque aluminum layer about 80 nm thick. An atomic force microscope was used to determine the groove profile shape and the grating relief depth. The study of the SPP excitation features was carried out on a stand mounted on the basis of a G5M goniometer and an FS-5 Fedorov stage by measuring the angular dependences of the intensity of specularly reflected and diffracted p-polarized radiation of He-Ne laser. When determining the SPP excitation efficiency, the resonance values of both specular reflection and reflection in the -1st DO were taken into account. It was found that the dependence of the integral plasmon absorption on the grating modulation depth (h/a) is described by a somewhat asymmetric curve with a wide maximum, the position of which corresponds to an h/a value of about 0.07 and a half-width of about 0.123. This allows to excite SPP with an efficiency ≥ 80% of the maximum value on the gratings with the 0,05-0,105 h/a range. The half-width of the plasmon minimum of the reflection in the -1st DO is less than in the specular reflection, which can increase sensitivity of sensor devices when registering the shift of the minimum from angular measurements. The dependence of the half-width of the SPP reflection minima on the grating modulation depth is close to quadratic. In the investigated h/a range (from 0.009 to 0.194), the maximum dynamic range of the reflection coefficient is two orders of magnitude and is achieved in specular reflection for gratings with h/a ≈ 0.075.
PHOTOLUMINESCENCE OF NANOCRYSTALLINE CdTe, INTRODUCED INTO POROUS SILICON
Authors:   V.  E. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine, Pashchenko G. A.
Published: December 2021

A method of colloidal synthesis of monodisperse nanocrystals (NC) with high stability, narrow bands of photoluminescence (PL) and high quantum yield has been developed. The process of colloidal synthesis took place at room temperature and for the passivation of NC used a variety of surfactants. The surface of NC CdTe was modified by introducing them into a matrix, organic or crystalline. In our case, the matrix was porous Silicon (PS), that is a composite structure was formed on the basis of the matrix and NC semiconductor. Nanocomposite structures of PS – NC CdTe were obtained by introducing colloidal solutions of NC CdTe into the solid matrix of PS and subsequent processing at a certain temperature regime. The photoluminescent properties of a composite system in which the matrix is microcrystalline PS and the second component is NC CdTe deposited from a colloidal solution of NC CdTe have been studied. The peculiarity of this system is that both components have PL of different intensities.The large difference in PL intensities and different positions of the radiation bands allowed, comparing the PL spectra of the colloidal solution of NC CdTe, PS and NC CdTe – PS at different stages of introduction of CdTe nanoparticles into the porous Silicon surface, to identify the interaction and mutual influence of the two constituent materials. The main disadvantages of the method are its relative novelty, which leads to the need for empirical selection of some parameters of the synthesis. The planned change of properties of PS and colloidal solutions of NC CdTe by variation of technological methods of synthesis and processing methods will allow to control the physical properties of this composite system and use it to develop new principles of design and creation of new generation sensor devices.
Наукові засади фітобіотичної стратегії збереження навколишнього середовища в сучасних умовах
Authors: Дідух Яків Петрович
Published: December 2021

У доповіді акцентовано увагу на актуальності й гостроті проблеми втрати біорізноманіття в умовах змін клімату та інтенсивного антропогенного впливу. Наведено результати досліджень установ НАН України, які свідчать про значущість рослинного світу та необхідність його збереження як ключового компонента біосфери, який забезпечує її збалансоване функціонування та розвиток. Наголошено, що неможливо стабілізувати зміни клімату, не зберігаючи і не рятуючи при цьому біосферу. Слід відмовитися від системи утилітарної класифікації відносин між людиною та природою, побудованої на основі використання, експлуатації, а не збереження природних ресурсів. Обґрунтовано необхідність розроблення фітобіотичної стратегії збереження навколишнього середовища та запропоновано низку першорядних завдань, які сприятимуть приєднанню України до Європейського зеленого курсу.
Adolescents and Young Adults: The Pediatrician’s Role in HIV Testing and Pre- and Postexposure HIV Prophylaxis
Authors: Hsu Katherine K , Rakhmanina Natella Yurievna
Published: December 2021

Most sexually active youth in the United States do not believe that they are at risk for contracting HIV and have never been tested. Creating safe environments that promote confidentiality and respect, obtaining an accurate sexual and reproductive health assessment, and providing nonstigmatizing risk counseling are key components of any youth encounters. Pediatricians can play a key role in preventing and controlling HIV infection by promoting risk-reduction counseling and offering routine HIV testing and prophylaxis to adolescent and young adult (youth) patients. In light of persistently high numbers of people living with HIV in the United States and documented missed opportunities for HIV testing, the Centers for Disease Control and Prevention and the US Preventive Services Task Force recommend universal and routine HIV screening among US populations, including youth. Recent advances in HIV diagnostics, treatment, and prevention help support this recommendation. This clinical report reviews epidemiological data and recommends that routine HIV screening be offered to all youth 15 years or older, at least once, in health care settings. After initial screening, youth at increased risk, including those who are sexually active, should be rescreened at least annually, and potentially as frequently as every 3 to 6 months if at high risk (male youth reporting male sexual contact, active injection drug users, transgender youth; youth having sexual partners who are HIV-infected, of both genders, or injection drug users; youth exchanging sex for drugs or money; or youth who have had a diagnosis of or have requested testing for other sexually transmitted infections). Youth at substantial risk for HIV acquisition should be routinely offered HIV preexposure prophylaxis, and HIV postexposure prophylaxis is also indicated after high-risk exposures. This clinical report also addresses consent, confidentiality, and coverage issues that pediatricians face in promoting routine HIV testing and HIV prophylaxis for their patients.
Aproximación a un indicador para estimar la magnitud del esfuerzo físico en las labores de cultivo
Authors: Monsalve Camacho Oscar Iván , Luque Sanabria Nadia Yurany , Henao Toro Martha Cecilia
Published: December 2021

A escala finca los indicadores sociales de sostenibilidad agrícola más comunes son las horas-labor y la estacionalidad de la mano de obra.  La magnitud del esfuerzo físico que los trabajadores invierten en las actividades agrícolas normalmente no se utiliza como un indicador de eficiencia y sostenibilidad; por esta razón, en este estudio se propone el Esfuerzo de Labor Agrícola (ELB) como indicador de este tipo.  Para calcularlo, se establecieron cinco grados de esfuerzo de labor (GE) y una clasificación de las labores de cultivo con un GE asignado.  Para probar el método, se estimó ELB en cuatro sistemas de producción de papa en dos sitios con pendientes diferentes.  Los resultados mostraron que, la pendiente o inclinación del terreno tiene una influencia más significativa sobre el ELB que el nivel de tecnificación del cultivo.  El sistema no tecnificado en terreno inclinado (MuiNo) genera el mayor ELB (4.67), correspondiente al máximo esfuerzo de labor.  El sistema medianamente tecnificado en terreno plano (PlnMd) presentó la menor ELB (1.69), correspondiente a poco esfuerzo de labor.  Se espera que este indicador pueda ser incluido en la dimensión social de los análisis de sostenibilidad agrícola a escala finca.
Análisis de sostenibilidad de modelos asociativos agropecuarios en Antioquia, Colombia
Authors: Benavides Santacruz Bayron Germán , Rodríguez Espinosa Holmes , Cerón Muñoz Mario Fernando
Published: December 2021

Los modelos asociativos rurales son estructuras socioeconómicas que propenden por el mejoramiento continuo de la comunidad y su éxito depende de una adecuada gestión y liderazgo, teniendo en cuenta indicadores de tipo: social (S), económico (E), empresarial (Em), político institucional (P) y ambiental (A). El objetivo del presente estudio fue caracterizar de forma participativa el grado de consolidación de las organizaciones de productores agropecuarios (OPAs) formalmente constituidas para identificar los factores de éxito. Se seleccionaron 13 OPAs ubicadas en siete subregiones del departamento de Antioquia (Colombia). Las OPAs fueron caracterizadas y se identificaron los factores que han incidido en los procesos de conformación, funcionamiento y mejoramiento, utilizando información de documentos de las agremiaciones y entrevistas semiestructuradas aplicadas a los representantes legales y directivos para construir el índice de sostenibilidad socioempresarial rural (ISSR). El indicador P fue el que mayor desarrollo presentó y los de menor impacto fueron E y A. De acuerdo con el ISSR las OPAs mostraron un nivel aceptable de sostenibilidad, y fueron clasificadas en cuatro tipologías: (1) empresas que priorizan acciones de implementación de las buenas prácticas agropecuarias y cuidado del ambiente para la transformación y comercialización del producto final, (2) con incipiente participación organizacional colectiva y escasa integración en la comercialización del producto, (3) con estructura organizacional definida y adecuadas prácticas de gestión en la prestación de servicios para mejorar la productividad y alto sentido social y político en pro de mejorar la calidad de vida de sus asociados y sus familias, y (4) OPAs caracterizadas por su alto ISSR, con alto desarrollo de la gestión empresarial y comercial. La caracterización holística participativa con las diferentes organizaciones destaca con mayor relevancia el indicador P y evidenciando que es necesario consolidar los procesos de análisis, intervención y seguimiento de los indicadores A, E y Em, ya que aún falta consolidar planes, programas y proyectos de sostenibilidad dentro de las organizaciones.
Visitantes florales no polinizadores en plantas del género Cucurbita y su relación con la presencia de abejas polinizadoras
Authors: Mazzei Mariana Paola , Vesprini José Luis , Galetto Leonardo
Published: December 2021

Los insectos visitantes de flores pueden ser polinizadores o, por el contrario, no tener relación con el proceso reproductivo de las plantas. Las interacciones entre visitantes florales polinizadores y no-polinizadores pueden influir negativamente en la transferencia de polen. Poco se conoce acerca de los efectos de las visitas de abejas en la polinización de flores de zapallo (Cucurbita spp.) y sus interacciones con la presencia de otros visitantes florales. El estudio se realizó en la Facultad de Ciencias Agrarias (Universidad Nacional de Rosario) en el sur de Santa Fe (Argentina) y en él se evaluó el efecto de la presencia de visitantes florales no-polinizadores en el forrajeo de las abejas presentes en las flores de dos especies cultivadas de zapallo. Como variables se incluyeron el sexo de la flor y las especies de zapallo C. maxima y C. moschata. Se registraron un total de 937 visitantes en 403 flores. Las abejas de las tribus Eucerini y Apini fueron los polinizadores más abundantes con un promedio de 2.3 individuos por flor durante 10 minutos de observación. Los dípteros, el sexo de la flor y la especie de zapallo no influyeron en el número de visitas de las abejas, mientras que la estadía prolongada de coleópteros y formícidos afectaron negativamente la presencia de abejas en ambas especies de zapallo. La presencia de coleópteros redujo las visitas de abejas en 38%; mientras que, en presencia de hormigas, aquéllas no visitaron las flores. El robo de néctar y polen por parte de visitantes florales no-polinizadores podría tener un efecto negativo sobre el éxito reproductivo de zapallo.
Caracterización microbiológica y fisicoquímica de carne de boga (Leporinus obtusidens) impregnada con jugo de limón
Authors: Naef Elisa Fernanda , Aviles María Victoria , Olivera Daniela Flavia , Abalos Rosa Ana , Gómez Maria Beatriz , Lound Liliana Haydeé
Published: December 2021

La carne de pescado es altamente perecedera y microbiológicamente sensible. Este trabajo tuvo como objetivo caracterizar la carne de boga (Leporinus obtusidens) y evaluar el efecto de impregnación a vacío con jugo de limón en sus características microbiológicas y fisicoquímicas. Se determinó humedad, proteínas, grasa, cenizas, pH y recuento de microorganismos indicadores en boga fresca. Los filetes fueron impregnados a vacío con jugo de limón durante 5, 10 y 15 minutos. Las muestras, fueron envasadas a vacío, almacenadas a 3 °C y se analizó variación de peso, pH, color superficial, índice de blancura (IB), nitrógeno básico volátil total (NBVT), recuentos de bacterias psicrótrofas y proteolíticas. La composición de la boga resultó similar a la informada por otros autores, los parámetros a* y b*, y el contenido de grasa fueron acordes a pescados grasos. Los recuentos de microorganismos indicadores resultaron aceptables, a excepción de las enterobacterias que se encontraron levemente aumentadas. La impregnación generó ganancia de peso, aumento de L* e IB, y disminución de pH y de bacterias psicrótrofas y proteolíticas. El NBVT disminuyó significativamente en la carne de boga impregnada por 15 minutos. Durante el almacenamiento, las muestras tratadas presentaron mayor pérdida de peso, en correspondencia con la ganancia generada por el tratamiento; se tornaron más claras; el NBVT se mantuvo constante y se redujeron las bacterias psicrótrofas y proteolíticas. La impregnación a vacío con jugo de limón resultó una tecnología viable para extender la vida útil de la carne de pescado refrigerada hasta cuatro días después del fileteado.
Fitorremediación en suelos contaminados con Cd usando girasol (Helianthus annuus L. var. Sunbright)
Authors: Clemente Huachen Josué Pedro , Medina Contreras Jefferson , Laura Pfuño Johel Daniel , Pariona Aguilar Luis Ángel , Gutierrez Vilchez Pedro Pablo
Published: December 2021

El objetivo de esta investigación fue determinar la acumulación, distribución y tolerancia de cadmio (Cd) en girasol en suelos contaminados con dicho metal. La investigación consistió en dos experimentos conducidos en macetas bajo condiciones de invernadero. En el primero se probaron concentraciones de 0, 10, 15, 20 y 25 mg Cd kg-1 suelo y se evaluó la altura, producción de materia seca y concentración de Cd en raíz, tallo, hoja e inflorescencia a los 84 días. Para el segundo, la concentración fue de 20 mg Cd kg-1 suelo y se evaluó a los 35, 49, 63, 75 y 84 días la concentración de Cd en los mismos órganos. Las dosis de Cd no tuvieron efecto en la altura de planta ni en la producción de materia seca, siendo el índice de tolerancia (IT) equivalente a 1, lo que demostró su alta tolerancia por este metal. En general, se encontró que al incrementar las dosis de Cd en suelo aumentó la concentración de Cd en planta. Independiente a la época de evaluación, la raíz concentró más Cd debido a una baja translocación hacia la zona aérea. El factor de bioconcentración (FBC) fue mayor a 1 bajo las diferentes dosis de Cd. En tanto al factor de translocación (FT), este resultó menor a 1 en ambos experimentos. Según los valores del FT y FBC encontrados, el girasol se comportaría como un fitoestabilizador por debajo de 25 mg Cd kg-1 suelo.
Hydrogen peroxide reduces sensitivity to aluminum in canola?
Authors: Quintão Scalon Silvana de Paula
Published: December 2021

The objective of this study was to evaluate the effect of aluminum and the mitigating potential of H2O2 on the stress and antioxidant responses in canola (Brassica napus var. oleifera (Moench) Delile) affecting the emergence and initial growth of plants. Canola seeds, cultivar Hyola 61, were treated with different concentrations of H2O2 solution (0.0, 0.075, and 0.15 M), and later sown under different concentrations of aluminum (0.0, 10, 20, and 30 mmolc dm-3). After 20 days of plant emergence, survival and growth characteristics were evaluated. 20, 30, 40, 50, and 60 days after emergence, height, chlorophyll index, chlorophyll a fluorescence, and the activity of superoxide dismutase in the roots were determined. The canola is sensitive to aluminum, and the treatment of seeds with H2O2 0.15 M mitigated the stress caused by the highest dose of aluminum. H2O2 treatment enabled high emergence but did not favor seedling survival or growth. The H2O2 did not increase SOD activity. The chlorophyll a fluorescence characteristics proved the sensitivity of canola to aluminum, but the presence of H2O2 maintained the stability and functionality of photosystem II.
A comparative soil liquefaction analysis with a Matlab® based algorithm: soiLique
Authors: Bekin Ekrem , Ozcep Ferhat
Published: December 2021

Soil liquefaction is one of the ground failures induced by earthquakes. Determining the safety factor and the settlements are the most common analyses to decrease liquefaction-induced failures and hazards. Scientists have suggested numerous empirical formulas to detect and mitigate liquefaction-based hazards, and they have been used over the decades. This study aims to present a user-friendly and interactive program for deterministic soil liquefaction analyses. The algorithm presented in this study, soiLique, is the first MATLAB® program, including a graphical user interface that provides the deterministic liquefaction analysis with the computation of parameters propounded with the formulas. One of the advantages of soiLique is that it allows picking the physical property of every layer (i.e., fine or coarse), which provides dealing with liquefaction prone layer(s) directly when necessary. Not only can one calculate parameters regarding soil liquefaction with the help of this program, but one also can see graphically supported results. The robustness of soiLique is checked with another soil liquefaction analysis program, SoilEngineering, which was introduced by Ozcep (2010). Calculations were done separately using real SPT data and synthetic data such as VS measurements and CPT data. The real SPT data and synthetic VS data were used to compare soiLique and SoilEngineering (Ozcep, 2010). The present study presents an example of CPT data analysis but could not be used for comparison. Comparisons reveal that outputs of soiLique and results of SoilEngineering showed a good agreement.
Indicações de cesárea nas gestantes classificadas como Robson 1
Authors: Melo João Pedro de , Garcia Fernanda Stelluti , Salazar Amanda Penteado , Kosorus Kátia
Published: December 2021

Objetivos: os objetivos foram identificar as indicações mais prevalentes de cesárea em parturientes Robson 1, comparando variáveis maternas, antecedentes obstétricos e resultados perinatais.Métodos: estudo analítico observacional transversal, onde avaliou-se o Livro de Partos e prontuários eletrônicos das gestantes em trabalho de parto, classificadas como Robson 1. As variáveis quantitativas foram comparadas utilizando-se Teste T de Student ou Mann Whitney, às qualitativas foi empregado teste Qui-quadrado ou Exato de Fisher.Resultados: elegíveis 2267 gestantes, sendo 570 (25,1%) cesáreas. As indicações mais prevalentes de cesariana foram: sofrimento fetal, em 213 (37,4%) dos casos, e desproporção cefalopélvica, em 212 (37,2%). As variáveis relevantes para o desfecho do parto foram: idade materna (razão de chance 1,0), idade gestacional (1,4), índice de massa corpórea pré-gestacional (1,6 em sobrepeso e 1,8 em obesidade) e presença de síndrome hipertensiva (aumentou 3,6).Conclusão: conclui-se que algumas características maternas e obstétricas afetam diretamente a indicação de cesariana.
PENDAMPINGAN PENGURUS PONDOK PESANTREN MENGEMBANGKAN WEBSITE SEBAGAI UPAYA MENANGKAL RADIKALISME DI ERA INDUSTRI 4.0
Authors: Wahyudi Wahyudi , Amrulloh Hanif , Asnawi Habib Shulton , Khotamin Nur Alfi , Yusuf Muhammad , Santoso Haris
Published: December 2021

Mobilization in the era of the industrial revolution 4.0 in various joints was extremely fast. This has an impact on the paradigm of people who want to meet their needs instantly, including in the aspect of religious education. Meanwhile, access to information in this era was also used by radicals to carry out propaganda and all things related to it. If these two interests meet (people learn religion instantly and propaganda by radicals) it will certainly endanger the stability and harmony of religious communities in this country. Pesantren as the oldest educational institution in this country must take a role, including building an easy access to information flow, one of which is a website so that the public does not get caught up in radicalist propaganda. Through assistance with the ABCD method, it is hoped that Islamic boarding schools will be able to contribute in spreading friendly Islam in cyberspace. So that radicalism that spreads through the website can be stopped.
Modeling of welding arc power supply diagrams in Matlab / Simulink
Authors: Vereshchago Yevhen , Kostiuchenko Vitalii
Published: December 2021

Purpose. Creation of virtual blocks and simulation laboratory stands for the study and comprehensive research of the dynamic properties of welding power supplies.
Methodology. Review of literary sources on the subject, simulation modeling of electromagnetic processes in the MATLAB software environment, comparative analysis of obtained and available data.
Findings. The comparative analysis of means of modeling of power sources of a welding arc is executed. One of the main parameters by which the environments were compared is functionality. Among the considered simulators, Simulink of the MATLAB software environment is the most effective one in the considered systems modeling. Using special features, its user can not only simulate, but also analyze the operation of the over time installation.
Mathematical and functional models of welding arc power supplies were built using SimPowerSystems elements and blocks from the Simulink library with the involvement of the MATLAB system itself, which significantly expands the possibilities for such systems modeling. Mathematization of certain processes to some extent shows the level of reliability of the results and the degree of their scientific development. The developed models act as a laboratory, which allows you to set and explore any modes and characteristics.
Numerical experiments and comparative analysis of numerical and field experiments are given. Experimental verification of the obtained results on specific examples showed the relevance of the problem and the correctness of its solution.
Further research is related to the expansion of the range of simulated power sources of the electric arc, a comprehensive study of their dynamic properties and basic characteristics, experimental verification of the developed models, as well as comparative analysis and development of recommendations for model improvement.
Originality. The method of circuit modeling of general-purpose electrical and electronic circuits was further developed by extending it to a new class of objects - the power supply system of electrical installations.
Practical value. Construction of mathematical and functional models of complex systems with the involvement of MATLAB allows to take into account their main features, significantly expands the possibilities for modeling, study and research of power supplies. Based on the proposed approach, simulation laboratory stands of specific power supplies were developed and built, which allow to set and study any modes and characteristics.
Specific standards of energy consumption in the problem of controlling its use efficiency
Authors: Dreshpak Natalia , Dreshpak Oleksandr , Vypanasenko Stanislav
Published: December 2021

Purpose. Analysis of the existing methods of specific energy consumption standardization and determination of the method acceptable for the standardization in conditions of transient structural and regime changes in energy consumption at a modern industrial enterprise.
Methodology. Analysis of the existing methods of specific energy consumption standardization, identification of their disadvantages and advantages. Comparison of the possibilities of these methods with the requirements for the specific energy consumption standardization in modern production.
Findings. Emphasis is focused on the significant dependence between reliability of the results of energy efficiency control of the production process (savings or overconsumption of energy) and the accuracy of the calculation of specific norms of energy consumption. The dependence between the assessments of the enterprise’s staff energy saving activity and the achieved accuracy of energy consumption standardization is determined. It is highlighted that in energy efficiency standardization practice, the existing methods are focused on the production conditions, where their benefits are fully revealed. It is proved that due to the increased accuracy of the standardization, efficiency of obtaining and processing information, the statistical method is the most acceptable for the conditions of transient structural and regime changes in the power consumption of the object. Prospects for improving the method of energy efficiency control are described.
Originality. For the first time, the use of the statistical method of specific energy consumption standardization in the system of energy efficiency control of production processes with rapid structural and regime changes in energy consumption of the object is proposed.
Practical value is to determine an acceptable method of specific energy consumption standardization in the conditions of modern industrial production, as well as ways to improve it.
Christ as Comes Augusti: On the Question of Numismatic Iconography of Justinian II
Authors:   State Museum of Oriental Art, Butyrskii Mikhail Nikolaevich
Published: December 2021

This paper compares iconography of the “image of power” on Roman coins of Emperor Aurelian (minted in Serdica, minted in 274–275) and Byzantine pieces of Emperor Justinian II (Constantinople and several Western provincial mints, 705–711). Not synchronous coin types demonstrate the similarity of the idea and image, which affirmed the divine power over the earthly empire in the pagan and Christian periods of its existence. This was achieved due to the novelty of the iconographic language: the half-length images of Sol and Christ, both titled “dominus”, are placed on obverse, with their physiognomy close to the appearance of the ruling emperor showed as a portrait or standing figure on reverse. The iconography of sun deity Sol called the “Lord of the Roman Empire” on the coins of Aurelian anticipated the iconography of Christ as the Lord and “Rex regnantium” on the coins of Justinian II; the latter, in the version from 705–711, inherited pre-Christian tradition of paired images of emperor and his deity-patron on the Roman coins (third and fourth centuries), demonstrating a “personal union” of the ruler and the deity.