bluuebunny/crossref_metadata_2025 huggingface dataset:
Soil-related developments of the Biome-BGCMuSo v6.2 terrestrial ecosystem model
Authors: Hidy Dóra , Barcza Zoltán , Hollós Roland , Dobor Laura , Ács Tamás , Zacháry Dóra , Filep Tibor , Pásztor László , Incze Dóra , Dencső Márton , Tóth Eszter , Merganičová Katarína , Thornton Peter , Running Steven , Fodor Nándor
Published: March 2022

Abstract. Terrestrial biogeochemical models are essential tools to quantify
climate–carbon cycle feedback and plant–soil relations from local to global
scale. In this study, a theoretical basis is provided for the latest version
of the Biome-BGCMuSo biogeochemical model (version 6.2). Biome-BGCMuSo is a
branch of the original Biome-BGC model with a large number of developments
and structural changes. Earlier model versions performed poorly in terms of
soil water content (SWC) dynamics in different environments. Moreover, lack
of detailed nitrogen cycle representation was a major limitation of the
model. Since problems associated with these internal drivers might influence
the final results and parameter estimation, additional structural
improvements were necessary. In this paper the improved soil hydrology as well as the
soil carbon and nitrogen cycle calculation methods are described in detail.
Capabilities of the Biome-BGCMuSo v6.2 model are demonstrated via case
studies focusing on soil hydrology, soil nitrogen cycle, and soil organic
carbon content estimation. Soil-hydrology-related results are compared to
observation data from an experimental lysimeter station. The results
indicate improved performance for Biome-BGCMuSo v6.2 compared to v4.0
(explained variance increased from 0.121 to 0.8 for SWC and from 0.084 to
0.46 for soil evaporation; bias changed from −0.047 to
−0.007 m3 m−3 for SWC and from −0.68 to −0.2 mm d−1 for soil evaporation). Simulations related to nitrogen balance and soil CO2 efflux were evaluated based on observations made in a
long-term field experiment under crop rotation. The results indicated that
the model is able to provide realistic nitrate content estimation for the
topsoil. Soil nitrous oxide (N2O) efflux and soil respiration
simulations were also realistic, with overall correspondence with the
observations (for the N2O efflux simulation bias was between −0.13 and
−0.1 mgNm-2d-1, and normalized root mean squared error (NRMSE) was 32.4 %–37.6 %; for
CO2 efflux simulations bias was 0.04–0.17 gCm-2d-1, while NRMSE was 34.1 %–40.1 %).
Sensitivity analysis and optimization of the decomposition scheme are
presented to support practical application of the model. The improved
version of Biome-BGCMuSo has the ability to provide more realistic soil
hydrology representation as well as nitrification and denitrification process
estimation, which represents a major milestone.
DINCAE 2.0: multivariate convolutional neural network with error estimates to reconstruct sea surface temperature satellite and altimetry observations
Authors: Barth Alexander , Alvera-Azcárate Aida , Troupin Charles , Beckers Jean-Marie
Published: March 2022

Abstract. DINCAE (Data INterpolating Convolutional Auto-Encoder) is a neural network used to reconstruct missing data (e.g., obscured by clouds or gaps between tracks) in satellite data. Contrary to standard image reconstruction (in-painting) with neural networks, this application requires a method to handle missing data (or data with variable accuracy) already in the training phase. Instead of using a standard L2 (or L1) cost function, the neural network (U-Net type of network) is optimized by minimizing the negative log likelihood assuming a Gaussian distribution (characterized by a mean and a variance). As a consequence, the neural network also provides an expected error variance of the reconstructed field (per pixel and per time instance). In this updated version DINCAE 2.0, the code was rewritten in Julia and a new type of skip connection has been implemented which showed superior performance with respect to the previous version. The method has also been extended to handle multivariate data (an example will be shown with sea surface temperature, chlorophyll concentration and wind fields). The improvement of this network is demonstrated for the Adriatic Sea. Convolutional networks work usually with gridded data as input. This is however a limitation for some data types used in oceanography and in Earth sciences in general, where observations are often irregularly sampled. The first layer of the neural network and the cost function have been modified so that unstructured data can also be used as inputs to obtain gridded fields as output. To demonstrate this, the neural network is applied to along-track altimetry data in the Mediterranean Sea. Results from a 20-year reconstruction are presented and validated. Hyperparameters are determined using Bayesian optimization and minimizing the error relative to a development dataset.
The development and validation of a global 1/32° surface wave-tide-circulation coupled ocean model: FIO-COM32
Authors: Xiao Bin , Qiao Fangli , Shu Qi , Yin Xunqiang , Wang Guansuo , Wang Shihong
Published: March 2022

Abstract. Model resolution and the included physical processes are two of the most important factors that determine the realism of the ocean model simulations. In this study, a new global surface wave-tide-circulation coupled ocean model FIO- COM32 with resolution of 1/32° × 1/32° is developed and validated. Promotion of the horizontal resolution from 1/10° to 1/32° leads to significant improvements of the simulations of surface eddy kinetic energy (EKE), fine structures of sub- mesoscale to mesoscale movements and the accuracy of simulated global tide. The non-breaking surface wave-induced mixing (Bv) is proved to be an important contributor that improves the agreement of the simulated summer mixed layer depth (MLD) of the model and the Argo observations even with high horizontal resolution of 1/32°, the mean error of the simulated mid-latitude summer MLD is reduced from -4.8 m in numerical experiment without Bv to -0.6 m in experiment with Bv. With the global tide is included, the global distributions of internal tide can be explicitly simulated in this new model and is comparable to the satellite observations. Comparisons using Jason3 along-track sea surface height (SSH) wave-number spectral slopes of mesoscale ranges show that internal tide induced SSH undulations is a key factor contributing to the substantially improved agreement of model and satellite observations in the low latitude and low EKE regions. For ocean model community, surface wave, tidal current and ocean circulation have been separating into different streams for more than half century. It should be the time to merge these streams for new generation ocean model development.
The Mesoamerican mid-summer drought: the impact of its definition on occurrences and recent changes
Authors: Maurer Edwin P. , Stewart Iris T. , Joseph Kenneth , Hidalgo Hugo G.
Published: March 2022

Abstract. The mid-summer drought, veranillo or canícula, is a phenomenon experienced in many areas, including Mexico, Central America, and the Caribbean. It generally is experienced as reduced rainfall in July–August, in the middle of the typical rainy season (May–September). Many past studies have attempted to quantify changes in mid-summer drought characteristics during the recent past or for future climate projections. To do this, objective definitions of a mid-summer drought's occurrence,
strength, and duration have been developed by many researchers. In this effort we adopt a recent set of definitions and examine the impact of varying these on the characterization of mid-summer droughts and the detected changes over the past 4 decades. We find the selection of a minimum intensity threshold has a dramatic effect on the results of both the area considered as experiencing a mid-summer drought and the changes detected in the recent historical record. The intensity chosen can affect
both the magnitude and direction of changes reported in the recent observed
record. Further, we find that the typical mid-summer drought pattern may not be occurring during the time it has historically; whether examining past or future changes or developing improved seasonal forecasts, the non-stationarity of its timing should be accommodated.
Local correlation-based transition models for high-Reynolds-number wind-turbine airfoils
Authors: Jung Yong Su , Vijayakumar Ganesh , Ananthan Shreyas , Baeder James
Published: March 2022

Abstract. Modern wind-turbine airfoil design requires robust performance predictions for
varying thicknesses, shapes, and appropriate Reynolds numbers. The airfoils of
current large offshore wind turbines operate with chord-based Reynolds numbers
in the range of 3–15 million. Turbulence transition in the airfoil boundary
layer is known to play an important role in the aerodynamics of these airfoils
near the design operating point. While the lack of prediction of lift stall
through Reynolds-averaged Navier–Stokes (RANS) computational fluid dynamics
(CFD) is well known, airfoil design using CFD requires the accurate prediction
of the glide ratio (L/D) in the linear portion of the lift polar. The
prediction of the drag bucket and the glide ratio is greatly affected by the
choice of the transition model in RANS CFD of airfoils. We present the
performance of two existing local correlation-based transition
models – one-equation model (γ− SA) and two-equation model
(γ-Reθt‾- SA) coupled with the Spalart–Allmaras (SA)
RANS turbulence model – for offshore wind-turbine airfoils operating
at a high Reynolds number. We compare the predictions of the two transition
models with available experimental and CFD data in the literature in the
Reynolds number range of 3–15 million including the AVATAR project
measurements of the DU00-W-212 airfoil. Both transition models predict a
larger L/D compared to fully turbulent results at all Reynolds numbers. The
two models exhibit similar behavior at Reynolds numbers around 3 million. However, at higher Reynolds numbers, the one-equation model fails to
predict the natural transition behavior due to early transition onset. The
two-equation transition model predicts the aerodynamic coefficients for
airfoils of various thickness at higher Reynolds numbers up to 15 million
more accurately compared to the one-equation model. As a result, the
two-equation model predictions are more comparable to the predictions from
eN transition model.
However, a limitation of this model is observed at very high Reynolds numbers
of around 12–15 million where the predictions are very sensitive to the
inflow turbulent intensity. The combination of the two-equation transition
model coupled with the Spalart–Allmaras (SA) RANS turbulence model is a
good method for performance prediction of modern wind-turbine airfoils
using CFD.
Erratum to Simons, M. (2022). Vital Norms: Canguilhem’s "The Normal and the Pathological" in the Twenty-First Century, edited by Pierre-Olivier Méthot. Philosophy of Medicine, 3(1). https://doi.org/10.5195/philmed.2022.102
Authors: McAllister-Erickson Jonah
Published: March 2022

At initial publication, Simons, M. (2022). Vital Norms: Canguilhem’s "The Normal and the Pathological” in the Twenty-First Century, edited by Pierre-Olivier Méthot. was incorrectly published in Volume 2, Number 2, 2021. After discovery of the error, the article was assigned to the correct issue: Volume 3, Number 1, 2022.
La idea de una dialéctica modificada y la filosofía en el pensamiento de Theodor W. Adorno
Authors: Fallas-Vargas Fabrizio
Published: March 2022

Este artículo explora algunas de las relaciones entre dialéctica y filosofía dentro del programa de una dialéctica modificada de Theodor W. Adorno ¿Cómo pensar la tensión entre las categorías dialécticas y la filosofía desde el prisma de una dialéctica negativa? ¿Qué significa desde el pensamiento de Adorno a liberar a la filosofía y a la dialéctica de su carácter afirmativo? Elaborar estas preguntas es el objetivo de este trabajo.
THE BEST OF ALL POSSIBLE WORLDS, TRANSWORLD DEPRAVITY AND THE PROBLEM OF CHOICE
Authors: Фатиев Никита Игоревич
Published: March 2022

В данной статье анализируется проблема выбора наилучшего из возможных миров в теодицее Лейбница. Автор понимает, что данная тема находится на стыке логики, теологии и моральной философии. Он показывает характер обращения к данной теме как самого Г. Лейбница, так и современных философов, логиков и теологов.

This paper analyses the search for the best possible world in Leibniz’s Theodicy. The author understands that this subject is at the crossroads of logic, theology and moral philosophy. He shows the manner of treating the subject by Leibniz, as well as modern by logicians, theologians and philosophers.
LOGIC AND DIAGRAMS. TEACHING EXPERIENCE
Authors: Боброва Ангелина Сергеевна , Сальникова Татьяна Викторовна
Published: March 2022

В последние десятилетия университетские курсы логики довольно быстро сдают свои позиции. Исключением не являются и академические философские программы, для которых логика всегда являлась важной профильной дисциплиной. Логика оказывается слишком сложной, слишком абстрактной, а потому слишком оторванной от философии. В поисках выхода из сложившейся ситуации мы решили модифицировать курс, состоящий из привычных теорий, и включить в него диаграмматические подходы Венна, Лейбница, Пирса. Круговые схемы Эйлера при этом, разумеется, сохраняли свои позиции. Мы исходили из того, что студентам важно продемонстрировать задачи логики (те, которые предполагают вводные курсы): логика интересуется логическими отношениями, выводами и доказательствами, а не только тем, как они представлены через конкретные знаки конкретных теорий. В этой работе мы описываем результаты нашей коррекции. Безусловно, диаграммы не способны стать универсальным решением (они подходят далеко не всем), но для кого-то они могут показывать иконичность логических формул и процедуру вывода, приоткрывая тем самым природу логики. Такой вариант изложения материала обращает логику к философии и повышает ее привлекательность для ребят, которым не просто дается алгебра.

In recent years, logic courses are quickly losing ground. The introductory course of logic for philosophers, which has always been an integral part of their major, is not an exception. Logic turns out to be too complicated, too abstract, and too separated from philosophy. Trying to find a way out, we decided to modify the course by including diagrammatical approaches of Venn, Leibniz and Peirce. The set of known theories and the traditional functions of Euler’s diagrams were preserved. We reasoned that diagrams could highlight that it is more important to understand key goals of logic (logical relations, consequence, inferences, etc. studies) rather than the syntax (certain signs) of certain theories. This paper reports the results of our investigations. We agree that diagrams cannot be seen as a universal solution (they cannot be great for everyone), but they clarify both the inferential processes and essence of logic for some students. This approach can turn logic back to philosophy, and this step can increase the attraction of logic even for those who are not much of algebra fans.
EFFICIENCY OF THE USE OF TARGETED MIXED FEED IN FEEDING OF DAIRY COWS
Authors: Razumovsky N.P. , Kuznetsova T.S. , Hanchina A.R.
Published: March 2022

The efficiency of feeding of dairy cows was determined with the use of targeted farm-produced mixed feed.
BIOCIDAL AND PROTISTOCIDAL PROPERTIES OF SAMPLES OF SILVER-CONTAINING DISPERSIONS
Authors: Degtyarik S.M. , Karpinchik E.V. , Polаz S.V. , Slobodnitskaja H.V.
Published: March 2022

When studying the biocidal and protistocidal properties of samples of silver-containing dispersions, it was found that all tested drugs possessed a biocidal effect on the test bacteria (Erwinia carotovora, Pseudomonas fluorescens) and yeast fungi (Saccharomyces cerevisiae, Candida utilis) at concentration of acting substance 0.03-0.04 ppm or more. Ef-fective influence on the infusoria Chilodonella possessed only the sample with polyethylene glycol, the death of infusoria reached 75%. The effect of the substances on the infusoria Ichthyophthirius multifiliis is practically not expressed: when treated, 5-10% of ciliates died.
ARCHITECTONICS OF KIDNEYS OF COMMON CARP (CYPRINUS CARPIO) GROWN UNDER
CONDITIONS OF INTENSIFICATION IN THE VORONEZH REGION
Authors: Shabunin B.V. , Petrenko O.V. , Stepanov E.M. , Ponomareva Yu.O. , Mikhailov E.V. , Zhukova V.V. , Strelnikov N.A. , Parkhomenko Yu.S. , Bolotova V.S.
Published: March 2022

The article presents a morphological and structural assessment of the kidneys of common carp (Cyprinus carpio) grown under conditions of intensification in the Voronezh region. Histological studies revealed pathological processes occurring in the renal tubules. This was manifested in the presence of vacuole, granular, and mixed dystrophy of the tubule parenchyma. The data obtained indicate that a high growth rate of fish has a negative effect on the excretory system, in particular – the renal epithelium is damaged.
DETERMINATION OF THE MOST EFFECTIVE STABILIZER AND ITS OPTIMAL CONCENTRATIONS IN HYPERIMMUNE SERUM AGAINST COLIBACTERIOSIS OF FARM ANIMALS
Authors: Gorbunova I.A. , Dremach G.E.
Published: March 2022

Studies on the selection of an effective stabilizing agent for serum stabilization were carried out, the optimal concentration of the stabilizer was determined. As the most effective stabilizer, maltose and glucose were used, which provide a shelf life of the serum up to 4 years. The optimal concentration of the stabilizer in the serum was 4–5%.
APPLICATION OF AMINOSELEFERON-B DURING DRY PERIOD FOR PREVENTION OF POSTPARTUM DISEASES IN COWS
Authors: Skorikov V.N. , Mikhalev V.I. , Ermakova T.I.
Published: March 2022

The article presents the materials on the study of the application of Aminoseleferon-B for the prevention of postpartum diseases in cows. The application of the preparation Aminoseleferon-B administered twice within 45 and 15 days before calving at a dose of 5 ml with a 24-hours interval helps to reduce the incidence of assisted parturition by 1.3-2.2 times; retained placenta – by 2.2-2.7 times; uterine subinvolution – by 1.3-1.6 times; and postpartum endometritis – by 1.6-2.0 times; with the shortened time of the sucking reflex manifestation in newborn young animals by 4.0-14.4 minutes; and the diarrheal syndrome – by 1.63-2.66 times.
PLANT-MICROBIAL INTERACTIONS IN DIESEL SPILLED WETLAND SITE AT OYONBRU-JESSE, ETHIOPE WEST LOCAL GOVERNMENT AREA, DELTA STATE, NIGERIA
Authors: OMAYULI M. O. , ANOLIEFO G. O.
Published: March 2022

Wetlands among its numerous definitions are transitional areas between terrestrial and aquatic systems in which the water table is usually at or near the surface or the land is covered by shallow water. They support a wide variety of organisms ranging from aquatic, sub-aquatic species to deep rooted plants. In the geographical zone (Niger Delta), where this study was conducted, hydrocarbon spills are a frequent occurrence. Following the diesel spill which occurred at Oyonbru, Jesse, Ethiope West local Government Area of Delta state, Nigeria, a study of the possible effects of the pollutant on the plants and fauna was carried out. Sand, loam, silt and clay were the predominant soil types at the study site. Soil particle size was between 0.05mm - 0.40mm. Water Holding Capacity was between 38% and 55% for sand and clay respectively. The four plants studied had moderate growth rate of 12.70% for Azolla pinnata, 13.00% for Phragmatis sp and 16.10% for Pennisetum purpureum. The four plants studied recorded declining diesel concentration in their rhizospheres. Microbial load were higher within the plant rhizospheres than between the plant rhizospheres. Total viable plate count (TVPC) for soil from diesel-impacted wetland ranged from 2.32 × 10-3 ? 0.40cfu/g to 3.56 × 10-3 ? 0.83cfu/g; while TVPC for unpolluted soil which served as control ranged from 2.85 × 10-3 ? 0.69cfu/g to 4.6 × 10-3 ? 0.67cfu/g. As there was steady increase in plant biomass, there was a corresponding decline in the hydrocarbon concentration from January to August. Among the biological diversity encountered were: bacteria-Arthrobacter sp, Bacillus sp, Nitrosomonas sp, Pseudomonas sp; Moulds-Aspergillus sp, Mucor, Saccharomyces sp, Geotrichum sp; Algae-Chlorella sp, Chlorobium sp, Spirogyra sp, Chlamydomonas sp. The study confirmed an interactive relationship between plants and microorganisms in the remediation of the diesel pollutant. The four plants studied can therefore be said to have potentials for hydrocarbon remediation.
ANTIPROLIFERATIVE AND APOPTOTIC EFFECTS OF FRACTIONATED EXTRACTS OF PICRALIMA NITIDA ON HUMAN BREAST CANCER CELL LINE
Authors: OSAYEMWENRE E. , LUTZ N.E. , FALODUN A.
Published: March 2022

Picralima nitida has widely varied applications in Nigeria folk medicine. The aim of this study was to establish the proximate analytic parameters and to evaluate the cell proliferative and apoptotic effects of the crude and fractionated extracts of the plant using breast cancer cell line. The proximate analysis of the crude powdered drug was carried out using standard methods. The crude powdered drug was extracted with methanol by maceration at room temperature and the concentrated extract was further partitioned with petroleum ether, chloroform and ethyl acetate in order of increasing polarity to obtain the different fractions. The antiproliferative and apoptotic effects of the crude methanolic extract (10 ?g/ml) and fractionated extracts (10 ?g/ml) were subjected to in-vitro anticancer evaluation using breast cancer cell line (MCF-7) measured by flow cytometry. The crude powdered plant material was found to have a moisture content of 21.23% and a total ash value of 9.92%. There was a significant decrease in percentage proliferation (P<0.01) of crude extract treated cells compared to the DMSO control. However the extent of apoptosis was not significant (P < 0.1) compared to the DMSO control. Among the fractions, the chloroform fraction demonstrated a significant (P < 0.001) antiproliferative activity against eostrogen receptor positive breast cancer cell line (MCF-7). The proliferative phase (G2 + S) was decreased by 15 % in comparison to the DMSO control (39.34 ± 2.71 %). A significant (P < 0.001) apoptotic effect was also observed for the chloroform fraction. Other fractions did not show significant inhibition of proliferation and apoptosis of MCF-7. The root bark extract of Picralima nitida especially the chloroform fraction possesses good anticancer activity and can be potentially used as natural anticancer agent, particularly against breast cancer.
IMPACT OF ABATTOIR EFFLUENT ON THE BACTERIOLOGICAL AND PHYSIOCHEMICAL PROPERTIES OF IKPOBA RIVER, EDO STATE NIGERIA
Authors: BELLO-OSAGIE I. O. , EKHAISE F. O.
Published: March 2022

The bacteriological and physicochemical properties of Ikpoba River water quality was studied. Sampling was carried out from 3 sampling points designated as station 1 (100 meters before the point were abattoir effluent is discharged into the River), station 2 (the point were abatoir effluent enters the river) and station 3 (100 meters away from station 2). The mean aerobic bacterial counts obtained during the months of September and October ranged from 7.58 x 103 to 11.65 x 103 cfu/ml across the sampling points while the aerobic bacterial counts during the months of November and December ranged from 6.80 x 103 to 1.03 x 104 cfu/ml. Total coliform counts ranged from 8.0 X 104 to 1.15 X 105cfu/ml while the mean E. coli counts ranged from 3.10× 104 to 1.10 × 105cfu/ml. The cultural, morphological and biochemical characterization of the isolates showed the presence of the bacterial genera, Staphylococcus, Klebsiella, Citrobacter, Escherichi, Pseudomonas, Enterococcus and Bacillus. The pH, temperature, turbidity, dissolved oxygen, phosphate, biochemical oxygen demand, chemical oxygen demand, electrolytic conductivity, nitrates and sulphate values fluctuated between the sampling points. The presence of different bacterial genera in this river could largely be attributed to the inflow of the effluents into the river and hence, call for serious concern
Spectral properties of non- self-adjoint elliptic differential operators in the Hilbert space
Authors: Alizadeh Reza , Sameripour Ali
Published: March 2022

‎Let $\Omega$ be a bounded domain in $R^{n}$ with smooth boundary‎ ‎$\partial\Omega$‎. ‎In this article‎, ‎we will investigate the spectral‎ ‎properties of a non-self adjoint elliptic differential operator\\‎ ‎$(Au)(x)=-\sum^{n}_{i,j=1}\left(\omega^{2\alpha}(x)a_{ij}(x)‎ ‎\mu(x)u'_{x_{i}}(x)\right)'_{x_{j}}$‎, ‎acting in the Hilbert space ‎$H=L^{2}{(\Omega)}$. with Dirichlet-type boundary conditions‎. ‎Here‎ ‎$a_{ij}(x)= \overline{a_{ji}(x)}\;\;\;(i,j=1,\ldots,n),\;\;\;‎ ‎a_{ij}(x)\in C^{2}(\overline{\Omega})$‎, ‎and the functions‎ ‎$a_{ij}(x)$ satisfies the uniformly elliptic condition‎, ‎and let $ 0‎ ‎\leq \alpha < 1$‎. ‎Furthermore‎, ‎for $\forall x \in‎ ‎\overline{\Omega}$‎, ‎the function $\mu(x)$ lie in the‎ ‎$\psi_{\theta_1\theta_2}$‎ , ‎where ${\psi_{\theta_1\theta_2}}=\{z \in‎ ‎{\bf C}:\;\pi/2<\theta_1 \leq|arg\;z| \leq \theta_2<\pi\},$‎
Some type of separation axioms in bornological topological space
Authors: Hussein Boushra Youssif , Al-Basri Fatma Kamil
Published: March 2022

In this paper, we introduce the concept of bornological topological continuous in bornological topological space and study some its properties. Also we define bornological topological open function, bornological topological closed function and bornological topological homeomorphism function and investigate some new properties of them. Finally some separation axioms have been studied in bornological topological space like and the relationships among them.
Characterization on fuzzy soft ordered Banach algebra
Authors: Hussein Boushra Y. , Hassan Sara F.
Published: March 2022

In this paper, we define fuzzy soft ordered Banach algebra with fuzzy soft algebra cone, and introduce the character on fuzzy soft ordered Banach algebra in both cases real and complex. Also, we deduce some of its basic properties and we define a new concept which is a maximal fuzzy soft algebra cone and showing that the set of all fuzzy soft character is isomorphism to the set of all maximal fuzzy soft algebra cone. we prove that the set of all real characters is convex and extreme point, we applied Gelfand- Mazur theorem on fuzzy soft Banach algebra, we showed that character (the set of all complex continuous character) is fuzzy soft ordered Banach algebra. with inverse –closed algebra cone ̆ and a non-zero element in ̆ has inverse we have is an isomorphism to Banach space ( ̆)
General integral transform – its convergence and consequences
Authors: Bandyopadhyay Dwiptendra
Published: March 2022

Objective of this study is to give a shape of general integral transform for studying its convergence in the general set-up, from which convergences of some well know integral transforms follow easily as well as these integral transforms appear as particular cases of the present integral transform; some more may appear as new but special cases of present transform which have been listed but not studied here.
Supercyclicity of multiplication on Banach ideal of operators
Authors: Amouch Mohamed , Lakrimi Hamza
Published: March 2022

Let X be a complex Banach space with dim X > 1 such that its topological dual X∗ is separable and B(X) the algebra of all bounded linear operators on X. In this paper, we study the passage of property of being supercyclic from T ∈ B(X) to the left and the right multiplication induced by T on an admissible Banach ideal of B(X). Also, we give a sufficient conditions for the tensor product T ⊗bR of two operators on B(X) to be supercyclic.
Effectiveness of Video Assisted Teaching Program on knowledge regarding Kegel exercise on Episiotomy pain and wound healing among nursing students of Durg District Chhattisgarh
Authors: Monika Monika , Rajput Veena , Prince Lija
Published: March 2022

Introduction: Globally, approximately 140 million births occur every year. In India the incidence of Institutional normal vaginal deliveries 61.5% with 58.4% of normal vaginal delivery with episiotomy. Maternal mortality Worldwide nearly 6 Lakh mothers between the age of 15-49 years die every year due to complication arising from pregnancy and childbirth.Kegel exercises are the most popular method of reinforcing pelvic floor muscles. They were first described in 1948 by the American gynecologist Arnold Kegel. The squeeze and hold vaginal exercises known as Kegel’s were specifically designed to target pelvic floor strengthening which damage due to vaginal delivery. Material and Methods: A Pre-experimental one group Pre-test post-test research design was adopted to conduct the study. Target population was B.Sc. Nursing 3rd year students. A purposive sampling technique was utilized for selecting a sample of 60 B.Sc. Nursing 3rd year students. Section A: - Deals with the socio-demographic variables such as Age, Residence, types of family, period of exposure in Clinical area, Previous knowledge about Kegel exercise and Source of knowledge. Section B: - Deals with self-structured knowledge questionnaire to assess the knowledge regardingKegel exercise on episiotomy pain and wound healing among B.Sc. Nursing 3rd year students. Result: Analysis of pre-test and post-test knowledge score using frequency, percentage and total score indicates that out of 60 B.Sc. Nursing 3rd year students in pre-test majority 3.33% (02) were in good, 63.33% (38) were in averageand 33.33% (20) sample were in need to improve on knowledge regardingKegel exercise on episiotomy pain and wound healingand in post-test majority 76.66% (46) sample were in good, 23.33% (14) were average and 0% (0) were in need to improve.which proves the effectiveness of the video assisted teaching programme.Chi-square analysis shows significant association between knowledge and previous knowledge of subjects, source of information of subjects. Conclusion: A study that conducted the use of video assisted teaching programmeregardingKegel exercise on episiotomy pain and wound healingwas effective in increase knowledge among B.Sc. Nursing 3rd year students.
A descriptive study to assess the knowledge of Mother’s regarding mobile phone use and mobile phone addiction among middle school children at Kollam
Authors: James Nithya Sara , S Princy , Samson Priya , Shaji Reshma Sara , S Shilpa , S Sheeja
Published: March 2022

The research work undertook was "A descriptive study to assess the knowledge of mothers regarding mobile phone use and mobile phone addiction among middle school children at Kollam“. The objective of the study was to assess the knowledge of mothers of middle school children and to find out the association between knowledge regarding mobile phone use and mobile phone addiction among middle school children and selected demographic variables such as age of mother, number of child, age of child, gender of child, education of mother, occupation of mother, monthly income, type of family. A quantitative approach was used with Non- probability convenient sampling method. The Sample consists of 60 mothers of children between 5 to 18 years residing at Kollam. The data collected by using self- structured questionnaire. The tool was found to be reliable (0.8). The study result shows that there was significant association between gender of child, education of mother, monthly income of family, type of family among mothers of middle school children (calculated value >tabulated value) at 0.05 level of significance. There is no significant association between age of mother, number of children, age of children and occupation of mother. Based on the findings the investigators have drawn implication which were of vital concerns in the field of nursing practice, nursing administration and nursing education for future development.
Estudos de literatura brasileira contemporânea: múltiplos diálogos v.2
Authors: Santos Marcos Antônio Fernandes dos , Monteiro Abílio Neiva
Published: March 2022

O volume II de "Estudos de Literatura brasileira contemporânea: múltiplos diálogos" reúne discussões acerca da produção literária produzida nas últimas décadas no Brasil, a qual é marcada por uma diversidade de formas, temáticas e diálogos, trazendo à tona a vida humana em toda a sua complexidade, e os muitos lugares dessa existência. Realidade e ficção, portanto, muitas vezes se confundem e por meio desse entrelugar o inesperado e o inquietante ressurgem através do potencial criativo da palavra. Assim, o volume apresenta múltiplos olhares sobre as narrativas (breves e longas), bem como sobre a produção poética de variados escritores que descortinam o que há de novo nesse território que é a literatura contemporânea. A publicação é a parte final de uma série de estudos sobre a temática.
LEASING MARKET IN KAZAKHSTAN: REALITIES AND NEW CHALLENGES
Authors: Urpeshanov S. , Adambekova A.
Published: March 2022

The purpose of the paper is to develop proposals for development of the market of Kazakhstan's leasing services, based on current research and analysis of their key features, taking into account trends in the EAEU countries.

Methodology. In this paper there were used following methods of data analysis: logical methods of researching information on the market (which made it possible to identify key trends in development), qualitative and quantitative data analysis, as well as a graphical visualization method. At the same time, the widespread use of statistical methods of economic market analysis based on data from the EAEU countries made it possible to show promising opportunities for the development of the national sector.

Originality / value of the research. Identification of the main trends and problems in the development of leasing services in Kazakhstan and in the EAEU countries in order to identify opportunities for expanding business investment instruments. The paper presents a comparative analysis of the leasing sector indicators, which makes it possible to identify similar and contradictory trends for countries that once had the same basic conditions for development.

Findings. In Kazakhstan, there is a revival of the market for leasing services, even despite the crisis events against the pandemic. The influence of quasi-state leasing companies on the market discourages the development of private business in this financial services sector. The need to expand the range of leasing services and qualitatively update the mechanisms for financing private leasing companies will allow the Kazakhstani market to become competitive in the system of the EAEU countries.
ÜNİVERSİTE ÖĞRENCİLERİNDE UZAKTAN EĞİTİM SÜRECİNDE MÜZİK TERAPİ VE PROGRESİF GEVŞEME EGZERSİZLERİNİN YAŞAM KALİTESİNE ETKİSİ
Authors: YURDALAN Ufuk , ÜNLÜ Begüm , GÖKÇEN Anıl , BOZKURT Berkay , KÜÇÜKİSLAMOĞLU Havva Erva
Published: March 2022

Amaç: Araştırmamızda, müzik terapi ve progresif gevşeme egzersizlerinin uzaktan eğitim gören üniversite öğrencilerinde yaşam kalitesi üzerine etkisini incelemek amaçlandı.

Yöntem: Türkiye genelinde farklı şehir ve üniversitelerden öğrencilere ulaşılarak bilgilendirilmiş onam formu paylaşıldı ve gönüllü olan katılımcılar, katılımcı değerlendirme formu ile değerlendirildi. Çalışmamıza Şubat 2021 – Nisan 2021 tarihleri arasında, dahil edilme kriterlerine uyan 88 gönüllü katılımcı dahil edildi. Katılımcılar randomize edilerek Müzik Terapi Grubu (n: 28), Progresif Gevşeme Egzersizi Grubu (n: 30) ve Kontrol Grubu (n: 30) olmak üzere üç gruba ayrıldı. Ses kayıtlarını oluşturmak amacıyla asoftmurmur.com adlı web sitesinin sahibinden ve WHOQOL-BREF Ölçeği kullanımı için WHOQOL Türkiye Merkezi’nden izin alındı. Araştırma öncesi katılımcıların demografik verileri kaydedildi; yaşam kalitesi, çalışmanın ilk ve son günlerinde; bedensel, ruhsal, sosyal ve çevresel alanları içeren WHOQOL-BREF Ölçeği kullanılarak değerlendirildi. Başlangıçta katılımcılara çevrimiçi toplantı ile eğitim verildi. Haftalık hatırlatma ve kontroller ile 4 hafta sürdürülen programda; Müzik Terapi Grubu 4 hafta boyunca uyku saatleri öncesinde 15 dakikalık doğa seslerinden oluşan ses kaydını dinlerken Progresif Gevşeme Egzersizi Grubu ses kaydı eşliğinde yapılandırılmış gevşeme egzersizleri programını uyguladı. Kontrol Grubu hazırlanan günlük çizelgeye her sabah kalp hızı, solunum frekansı ve kesintisiz uyku sürelerini kaydetti. Müzik ve Progresif Gevşeme Egzersizi Grupları da benzer günlük izlemi gerçekleştirdi. Araştırmadan elde edilen verilerin niteliksel ve niceliksel istatistiksel analizi SPSS 24 programı kullanılarak yapıldı.

Bulgular: Katılımcıların yaş ortalamaları X̄= 21,63±1,73 yıl, %73,9’u kadın, %26,1’i erkek idi. Katılımcıların demografik özellikleri benzerdi (p>0,05). Gruplar arası son değerlendirmelerde kontrol grubu ile müzik terapi grubu arasında müzik grubunda daha yüksek olmak üzere bedensel alan skorunda istatistiksel anlamlı fark bulundu (p
REDUCTION OF POWER CONSUMPTION IN THE SRAM SENSE AMPLIFIER
Authors: Momjyan A.M. , Petrosyan A.O. , Hovhannisyan V.D.
Published: March 2022

Power reduction is one of the primary problems in modern high-speed integrated circuits. Static RAM is one of the most common type of memory. The average power consumption and speed of the SRAM device have a great impact on the performance of the
whole system. In SRAM, a sense amplifier is considered to be an active element in the
reading process. Besides, the moderate decrement of the average power consumption in the
sense amplifier can cause a significant power reduction of the entire system, as bit lines in
SRAM are connected to sense amplifiers.
The existing sense amplifier of SRAM is investigated in this paper. The transistors of
the selected amplifier are changed by ultra-low-voltage transistors. Also, the design of current mirrors is changed. The proposed circuit has fewer active transistors, which reduces the power consumption of the sense amplifier in the reading process. The circuit is designed with 28 nm and 14 nm (FinFET) technology and examined according to power consumption and sensitivity. As the parameters of the amplifier can vary with different technological processes, the scheme has been optimized for different technological processes (typical, fast, slow, etc.). The results of the scheme simulation at different temperatures and supply voltages are presented. A comparative analysis of the selected and proposed schemes is performed according to the average power consumption.
АНАЛИЗ ИМПУЛЬСНЫХ РЕГУЛЯТОРОВ ПОСТОЯННОГО ТОКА МЕТОДОМ ЭКВИВАЛЕНТНЫХ СХЕМ “DC-DC” ТРАНСФОРМАТОРОВ
Authors: Петросян Н.Н. , Манукян П.С.
Published: March 2022

Для упрощения анализа и расчета импульсных преобразователей постоянного
напряжения (ППН) (конвертеров) широко применяются различные приближенные
методы, которые значительно сокращают громоздкие расчеты и в то же время
позволяют получать приемлемые результаты. Проведены анализ и расчет
преобразователей постоянного напряжения методом эквивалентных схем “DC-DC”
трансформаторов. Используя основные формулы трансформатора в соответствии с
классической электротехникой, можно легко рассчитать и произвести анализ
электрических цепей. Рассмотрены режимы прерывистого тока и предельные случаи
в схеме понижающего конвертера на транзисторе MOSFET. На примерах анализа
повышающих и понижающих конвертеров показана эффективность применения
этого метода. Получены некоторые основные расчетные формулы для импульсных
преобразователей постоянного напряжения (конвертеров). Показано, как меняется
форма тока через индуктивность, когда уменьшается мощность нагрузки, при
постоянном и пульсирующем токах через индуктивность. Модель трансформатора
постоянного тока позволяет упростить анализ преобразователей типа “DC-DC” с
высокой эффективностью. Данный метод можно легко совместить с традиционными
методами схемного анализа. Этот метод может быть усовершенствован для учета
потерь в элементах схемы. В общем случае эквивалентная схема преобразователя
постоянного тока может быть получена из вольт-секундного баланса индуктивных
дросселей и баланса заряда конденсаторов.
В построенных эквивалентных схемах уравнения контуров и узлов должны
соответствовать уравнениям баланса (вольт-секундного и зарядного).
ПЛАНАРНЫЕ КОЛЕБАНИЯ МОНОМОРФНОЙ
ПРЯМОУГОЛЬНОЙ ПЬЕЗОПЛАСТИНЫ С ЭЛЕКТРОДИРОВАННОЙ
ПОВЕРХНОСТЬЮ
Authors: Белубекян М.В. , Саргсян М.Г. , Саргсян И.М.
Published: March 2022

Современная микромеханика эффективно объединяет механические,
электронные, компьютерные системы в единые устройства, что позволяет уменьшить
размеры создаваемых устройств. Это способствует развитию таких важных
направлений техники, как мехатроника, биомеханика, в которых большое внимание
уделяется разработке микророботов, механизмов микроперемещений,
микроманипуляторов. В указанных механизмах в качестве исполнительных
элементов широко применяются пьезоматериалы, которые выполнены в виде
стержней, дисков, прямоугольных пластин, работающих на сжатие-растяжение,
изгиб, сдвиг. Пьезоэлектрические устройства занимают лидирующие позиции,
обгоняя все остальные типы устройств еще и по таким показателям, как
энергосбережение, миниатюризация и адаптивность к компьютерным системам
управления. Преимущества пьезоэлементов перед известными механическими
системами очевидны. Это, прежде всего, малые габариты, способность обеспечивать
микроперемещения, высокая точность позиционирования, быстродействие, работа в
статическом и динамическом режимах, простота конструкции, стабильность работы
при повышенных температурах и, наконец, высокая прочность. Применение
пьезоэлектрических элементов в различных устройствах требует исследования их
напряженно-деформированного состояния в зависимости от действия электрического
поля.
В представленной работе рассматривается задача планарных колебаний
мономорфной пьезопластины прямоугольной формы под действием переменного
электрического поля. На базе основных уравнений плоского напряженного состояния
пьзопластин с учетом действия переменного электрического поля исследованы
продольные колебания консольной пьезопластины, получено и решено уравнение
резонансных частот.
Relative abundance and diversity of staphylococci in some surface and underground water points in Yaoundé (Cameroon, Central Africa)
Authors: Olive Vivien Noah Ewoti  , Pélagie Ladibé  , Luciane Marlyse Moungang  , Antoine Tamsa Arfao  , Samuel Davy Baleng  , Raoul Polycarpe Tuekam Kayo  , Ulrich Kolkossok Badouana  , Yves Yogne Poutoum  , Sandrine Kapoho Kamdem  , Moïse Nola
Published: March 2022

A study aimed at evaluating the abundance and the diversity of staphylococci in surface and underground water points was carried out in the city of Yaoundé during the period from February to August 2020. The bacteria sought were heterotrophic bacteria aerobic mesophiles (BHAM) and staphylococci. They were isolated by the technique of surface spreading on a Petri dish on PCA (Plate Count Agar) and the membrane filter technique on Chapman mannitol medium (Mannitol Salt Agar), for BHAMs and staphylococci respectively. The bacteria isolated were identified by standard methods. Some abiotics parameters were measured according to usual analytical techniques. These analyses show that the abiotic variables have varied throughout from one sampling period to another and from one point to another. Thus, it was noted that the waters are acidic and not very mineralized. The high nitrogen and orthophosphate values recorded at all the sampling points testify to the richness of organic matter in the water analysed. Bacteriological analyses revealed that these waters harbor a high density bacterial microflora consisting of BHAM and bacteria of the genus Staphylococcus. In fact, concerning the BHAMs, their mean densities in CFU per 100 ml were 4, 42 and 4, 13 respectively in the Olézoa stream and the various wells. In addition, Staphylococcus aureus and Staphylococcus epidermidis are the different species of genus Staphylococcus found with an average density of 4, 26 log CFU/100 ml and 2, 79 log CFU/100 ml for Staphylococcus aureus and 1, 11 log CFU/100 ml and 2, 79 log CFU/100 ml for Staphylococcus epidermidis respectively in the Olézoa stream and the different wells studied in the Olézoa watershed. The densities of staphylococci in the wells were less abundant but more diversified than those in watercourse. Significant correlations were observed between these germs and parameters such as electrical conductivity, color, suspended matter, dissolved O2, dissolved CO2, PO43- and NH4+. The degradation of the quality of these waters is favoured by their proximity to the sources of pollution with sampling stations, the exogenous inputs and the poor maintenance of the wells. These waters without any treatment, are not recommended for human consumption according to the World Health Organization standards.
Development of an Electronic Instrument for Eddy Current Testing
Authors: Mesquita Amir Zacarias , Pinheiro Palma Daniel Artur , Oliveira Alexandre Melo de
Published: March 2022

This article presents the development of a portable electronic variable frequency instrument for eddy current testing. Variations in the conductivity, permeability, or physical characteristics of non-ferromagnetic and ferromagnetic materials cause the impedance of the probe (or coil) connected to a Wheatstone bridge circuit to change. Impedance change causes bridge unbalance, which is indicated by analog and digital indicators on the front panel. The main applications of the equipment are: detection of cracks and surface faults in conductive materials, evaluation of the depths of detected discontinuities, classification of these materials through the variation of conductivity, and evaluation of the thickness of non-conductive layers on a conductive basis. Eddy current testing instruments are superior to equipment that does not use electromagnetic principles for the applications described above. The reason is due to the accuracy and ease of carrying out the inspection. The device developed in this work also has the advantage of the circuits simplicity, the low cost of the electronic components, and the ease of finding them in the market for eventual maintenance. Some test results performed are presented. The instrument performed well for the intended applications.