bluuebunny/crossref_metadata_2025 huggingface dataset:
Structure-Property Relationships in Benzofurazan Derivatives: A Combined Experimental and DFT/TD-DFT Investigation
Authors: Raissi Hanen , Chérif Imen , Ayachi Hajer , Haj Said Ayoub , Hassen Fredj , Ayachi Sahbi , Boubaker Taoufik
Published: December 2021

In this work we seek to understand and to quantify the reactivity of benzofurazan derivatives toward secondary cyclic amines, like pyrrolidine, piperidine and morpholine, acting as nucleophile groups in SNAr reactions. For this aim, physico-chemical and structural descriptors were determined experimentally and theoretically using the DFT/B3LYP/6-31+ g (d,p) methodology. Thus, different 4-X-7-nitrobenzofurazans (X = OCH3, OC6H5 and Cl) and products corresponding to the electrophilic aromatic substitution by pyrrolidine, piperidine and morpholine, were investigated. Particularly, the HOMO and LUMO energy levels of the studied compounds, determined by Cyclic Voltammetry (CV) and DFT calculations, were used to evaluate the electrophilicity index (ω). The latter was exploited, according to Parr’s approach, to develop a relationship which rationalizes the kinetic data previously reported for the reactions of the 4-X-7-nitrobenzofurazans with nucleophiles cited above. Moreover, the Parr’s electrophilicity index (ω) of these benzofurazans determined in this work were combined with their electrophilicity parameters (E), reported in preceding papers, was found to predict the unknown electrophilicity parameters E of 4-piperidino, 4-morpholino and 4-pyrrolidino-7-nitrobenzofurazan. In addition, the relationship between the Parr’s electrophilicity index (ω) and Hammett constants σ, has been used as a good model to predict the electronic effect of the nucleophile groups. Finally, we will subsequently compare the electrophilicity index (ω) and the electrophilicity parameters (E) of these series of 7-X-4-nitrobenzofurazans with the calculated dipole moment (μ) in order to elucidate general relationships between E, ω and μ.
Community Attachment and Environmental Stewardship: A Peri-Urban Perspective
Authors: Eliyah Mngumi Lazaro , Chen Yonggui
Published: December 2021

This Chapter questions the negligence of attachment scholarship in the context of environmental stewardship with a specific focus in peri-urban areas. This Chapter has illuminated the imperatives of considering place attachement as an important factor in realizing environment stewardship in peri-urban areas. Three selected hamlets (Nzasa, Kisarawe and Pugu-Kibaoni) constitute the study area. A standard closed-ended questionnaire for assessing the extent of attachment of the community was deployed. Literature review on the other hand was used to map baseline information of the study area including the historical significance of the Pugu and Kazimzumbwi forest reserves. Three attachment attributes were explored;, community knowlegiability levels of the area; level of thoughts and feelings of the area; and the extent of community connection to natural resources in the area. It was revealed that the extent of community connection to the forest reserves are relatively strong. The study revealed considerable contrast on forest knowledgiability levels among men and women in the Pugu and Kazimzumbwi forest reserves. Males are generally revealed to be more knowledgiable of the Pugu and Kazimzumbwi forest reserves as compared to their female counterparts. The study revealed that there was substantial relationship between residence status and the level of thoughts and feelings on the forest reserves. The study has shown that natives have more thoughts and feelings of the present and the future of the forest reserves as compared to those who migrated from other parts of the country. The findings suggest that community attachment is of considerable importance in influencing environmental behavior either positively or negatively. Whilist the empirical evidence are drawn from the peri-urban areas of Pugu and Kazimzumbwi forest reserves of Dar es Salaam city, the message thereoff is representing a broad reality in the peri-urban areas of the Global South. The inclusion of community attachment perspective in negotiating environmental stewardship is advocated for as it might contribute in addressing the growing degradation of natural resources in peri-urban areas which has been increasingly declining.
W.F. Botha (Hoofredakteur). Woordeboek van die Afrikaanse Taal, Sestiende Deel: SRP–SZONDITOETS.
Authors: Kotzé Ernst
Published: December 2021

Review of W.F. Botha (Hoofredakteur). Woordeboek van die Afrikaanse Taal, Sestiende Deel: SRP–SZONDITOETS.
The Real-life-based School Dictionary for Turkish
Authors: Özkan Bülent
Published: December 2021

This report aims to describe the development of a new, original, and monolingual dictionary as an educational resource named the Real-life-based School Dictionary (RLBSD). There is a general lack of corpus-based school dictionaries in the Turkish context. The existing dictionaries are based on native speaker intuitions and are far from being empirical, indicating the need for the development of a corpus-based dictionary. In this respect, the RLBSD meets this critical need. A specialized corpus consisting of texts from a range of natural language environments such as coursebooks (from primary to high school) approved by the Ministry of Education (MoNE), children's literature books, and periodicals was compiled and forms the basis of the RLBSD. The dictionary has been designed with the use of information technologies and corpus linguistics methods and is accessible to users on all digital platforms (the Internet, smart board, tablet, smartphone) as an instructional tool. It is believed that the current study may serve as an exemplary work with its methods and outputs for Turkish lexicography studies.
It’s not only the sea: a history of human intervention in the beach-dune ecosystem of Costa da Caparica (Portugal)
Authors: Palma Monique , Alveirinho Dias João , Freitas Joana Gaspar
Published: December 2021

Costa da Caparica, located south of Lisbon, has been since the 1960s the favourite beach of the population of the Portuguese capital. The bridge over the Tagus river (1966), connecting the two margins, has facilitated the access to that wide beach of sand and dunes. Due to its natural features and proximity to Lisbon, Caparica become a highly populated area, where different social and economic activities compete for the use of the available space, increasing pressure upon the local ecosystems. The situation is even more problematic, because that littoral has been deeply affected by coastal erosion from the 1950s onwards. Authorities have been dealing with the issue using groynes and artificial beach nourishments. Since 2015, the Municipality of Almada is investing in the rehabilitation of the dunes of the beach of S. João, placing fences to retain the sand and planting vegetation. This programme is particularly interesting from a coastal management history point of view, because these dunes have been the object of many interventions with different purposes, but what was done and why is not very well known. The aim of this article is therefore to present the results of a historical research about human intervention in Costa da Caparica and, particularly at S. João beach, starting in the 19th century, with the first dunes’ survey, the afforestation experiences and the construction of a drainage system. This paper offers a long-term perspective on the socio-evolution of these hybrid environments. Results and discussion show how dunes were trimmed by the works carried out and the reasons that laid beneath these. Revealing the ideas and values, the social, economic and political pressures, that across the years and within the same time period, shaped management strategies and landscapes. Keywords: Environmental History; Dunes Rehabilitation; Afforestation; Wetlands; Coastal Erosion.
Community Perception of the Value of the Ecosystems of the Bons Sinais Estuary, Mozambique, Southern Africa
Authors: Hoguane Antonio Mubango , Francisco Rodrigues Pita , Simbine Rosa Lourenço , Mabota Humberto Silvestre
Published: December 2021

Understanding the community’s perceptions of, and beliefs about, the value of ecosystems and natural resources is important for designing effective environmental education and awareness campaigns and for the adoption of sustainable natural resources management. The present paper examines the perceptions of the natural resource users in the Bons Sinais Estuary and gauges their willingness to contribute to mangrove ecosystem restoration and management. 169 natural resource users, including fishermen, farmers, and forest produce users, from five villages along the Estuary (Marrubune, Gazelas, Icidua, Chuabo Dembe and Inhangome), were interviewed. The interviewees assigned high value to the estuary as a source of fish, as agricultural land and as productive forest. They considered the estuary important for provision of clean water and air and for its potential for tourism development. There were strong similarities, across the region, with regard to the value of the estuary ecosystem (0.6 Keywords: Ecosystem services, natural resource management, livelihood activities, mangrove restoration, co-management.
El moderno endecasílabo dactílico, anapéstico o de gaita gallega
Authors: Domínguez Caparrós José
Published: December 2021

Un verso se constituye como tal, en su individualidad rítmica, cuando su modelo es conscientemente utilizado en un poema. Se necesita, pues, una conciencia de sus rasgos y una manifestación intencionada de los mismos en un poema. Otra cuestión es que esta forma consiga la consagración canónica en el repertorio de formas prestigiosas de la poesía. Para eso, junto a la parte técnica, está la imprescindible influencia de la calidad estética. Esta será la que impulse su difusión y conversión en ejemplo de imitación deseado. De ahí la frecuente asociación en métrica de una forma con una obra o composición que simboliza su mejor ejemplo.
A Hybrid Viscous/Potential Flow Method for the Prediction of the Performance of Podded and Ducted Propellers
Authors: Kinnas Spyros A. , Chang Shu-Hao , Yu Yi-Hsiang , He Lei
Published: December 2021

This paper presents the analysis of the performance for podded and ducted propellers using a hybrid numerical method, which couples a vortex lattice method (MPUF-3A) for the unsteady analysis of propellers and a viscous flow solver (NS-3X or FLUENT) for the prediction of the viscous flow around propulsors and the drag force on the pod and duct surfaces. The time averaged propeller force distributions are considered as source terms (body force) in the momentum equations of NS-3X and FLUENT. The effects of viscosity on the effective wake and on the performance of the propeller blade, as well as on the predicted pod and duct forces, are assessed. The convergence study of circulation distributions with number of lattices is reported in the ducted propeller case. Finally, the prediction of the performance for podded propellers (both single pull-type and twin-type) and ducted propellers from the present method is validated against existing experimental data.
Forward-Skew-Bladed Ducted Propellers
Authors: Brown Neal A.
Published: December 2021

Propeller cavitation, with all its noise, vibration, erosion, etc. is largely the consequence of blade lift fluctuations when operating in non-uniform inflow. It is easily shown, on the basis of simple low-aspect-ratio approximations, that forward-skew reduces the lift/incidence slope at the outer radii while the common back-skew increases it. Forward-skew has by now been applied with good results to axial propeller-type and mixed-flow pump impellers, an advanced water jet's impeller and several ducted thrusters. Finally, it has been applied to a ducted, CRP main propulsion screw with notable reduction of radiated noise - all without loss of capacity or efficiency.
A Method for the Prediction of Rotor/Stator Interaction Applications to 2-D Hydrofoils and Propeller
Authors: He Lei , Kinnas Spyros A.
Published: December 2021

This paper presents computational techniques to predict the fully unsteady interaction of two hydrofoils (rotor and stator) and to calculate the unsteady trailing wake geometry in the case of a propeller. A boundary element method is developed to simulate the unsteady performance of moving and stationary hydrofoils interaction in 2-D. The wakes of the two hydrofoils are determined in time by applying a force-free condition on each wake surface. The results of the present method are compared with those from viscous flow calculations in 2-D, by using a commercial RANS solver (FLUENT) on the same 2-D hydrofoil set-up and conditions. The effect of the unsteady rotor/stator interaction is studied. The method then is extended in 3-D to calculate the unsteady trailing wake of propeller flow, and validated with experimental data.
Effect of Waterjet Propulsion on Sway and Yaw Static Maneuvering Coefficients
Authors: Wilson Michael B.
Published: December 2021

Results are presented from captive model tests on the effect of waterjet propulsion flows on the static maneuvering coefficients for sway force and yaw moment for a model of a large waterjet-propelled sealift ship configuration. Towing basin tests were conducted for the measurement of hull surge force and side forces at static (fixed) hull yaw angles of 0, 1, and 3 degrees at four ship speeds, ranging from 20 to 36 knots. Side force and yaw moment data were analyzed in terms of the standard linear sway force and yaw moment derivative coefficients Y'v and N'v. These play a role in ship controls-fixed maneuvering factors. It is shown that the maneuvering factors for the waterjet-propelled case differ by as much as 20% and 25% from the bare hull values for the sway- and yaw- derivative coefficients, respectively.
Performance of Stern Tube Bearings under Different Lubrication and
Operating Conditions
Authors: Andersen Jan H. , Sada Hiroyuki , Yamajo Seiji
Published: December 2021

This paper presents the results of an investigation into the theoretical and experimental performance of oil lubricated journal bearings. DNV has developed a new calculation tool for the analysis of journal bearing performance as part of shaft alignment analysis. The results of the calculation tool have been compared to other research and analysis methods under static and dynamic conditions. In addition, white metal bearings were tested with decreasing Sommerfeld number until loss of hydrodynamic lubrication. The experiments were carried out in a bearing test rig and with three different lubricants, normal mineral oil, emulsifying oil, and water-soluble oil. The tests were done with increasing water content in the lubricant. Results from the test were compared with calculation using the DNV analysis tool.
Influence of Gap Flow on the Cavitating Response of a Rectangular Hydrofoil
Authors: Harwood Casey , Ducoin Antoine , Young Yin Lu
Published: December 2021

A commercial URANS solver is used to analyze the cavitating flow field around a rectangular, cantilevered hydrofoil with a small gap between the free end and the wall of a cavitation tunnel. A transport-equation based cavitation model is used along with an artificial compressibility correction for the turbulent eddy viscosity. The objective is to improve the understanding of the unsteady interactions between the 3-D gap flow, sheet-cloud cavitation, gap cavitation, tip vortices, and their dependence on the cavitation index. It is found that the numerically-predicted wetted pressure distributions, cavitation patterns, and load coefficients agree well with experimental measurements and observations. The results suggest that the presence of cavitation significantly modifies the boundary layer flow near the tip and the tunnel wall, disrupts the formation of the tip-leakage vortex, and enhances other secondary flows. Although the numerical model was able to simulate the general dynamics of sheet and gap cavitation, a more refined mesh and higher fidelity turbulence models (e.g. DES or LES) are needed to resolve the fine vortex structures in the tip, tip vortex cavitation, and the highly transient features of 3-D cloud cavitation.
Migración de género, passing e inteligibilidad post-recesionaria
Authors: Argyriou Konstantinos
Published: December 2021

La era postfeminista post-recesionaria marca un giro a la interioridad, fuera de cuyo registro quedan cuerpos ininteligibles, excluidos, desarraigados y precarios. Esos cuerpos combaten sistemas de clasificación que no se abren a la multiplicidad de experiencias corporales. Después de las últimas modificaciones del manual diagnóstico CIE en 2018, se ha abierto supuestamente una puerta al cambio a nivel institucional para las identidades y corporalidades trans. No obstante, a nivel social, quienes tienen acceso a servicios, conocimiento y apoyo social son les que entran en los márgenes del passing. El texto examina la tensiónentre la conquista de la inteligibilidad y la libre exploración de lo no binario. Se realiza una lectura crítica y posicionada de propuestas teóricas que han cambiado últimamente la forma de percibir lo trans. La noción de «desposesión» es clave para esta lectura. El texto rodea dichos posicionamientos operando con tres lecturas: una representacional, una sistémicaprospectiva, y una intercultural.
Virtudes domésticas / acciones públicas. Las reinas atálidas y las transformaciones de la feminidad helenística
Authors: Mirón Pérez María Dolores
Published: December 2021

La historiografía ha destacado a las reinas de la dinastía atálida gobernante en Pérgamo por su imagen como modelo de feminidad tradicional griega, ampliamente publicitada y usada por la propaganda dinástica, considerándose por lo general que su papel era fundamentalmente pasivo. Sin embargo, Apolonis y Estratonice, además de exhibir en el ámbito público sus virtudes domésticas, hicieron notar en él su agencia e influencia, encuadrándose en el fenómeno general de las transformaciones en las formas de estar las mujeres en público en el mundo helenístico. En este sentido, pudieron ser un referente para los nuevos modelos de feminidad que la cambiante realidad requería, y que fueran perfectamente asumibles por un sistema patriarcal en constante proceso de adaptación.
Mujeres griegas en las imágenes de la cerámica: novias, esposas, tejedoras
Authors: Dukelsky Cora
Published: December 2021

Las evidencias visuales tienen el poder de transmitir ideología; como parte de la cosmovisión de una cultura contienen códigos que despliegan aspectos de sus actividades, de sus prácticas sociales, de sus creencias. La cerámica pintada brinda al investigador numerosos testimonios que proporcionan una profunda comprensión de la mentalidad griega. Los artistas transmitieron mensajes que los receptores antiguos captaban sin dificultad. Nuestro desafío es descifrar los contenidos a partir del formato de las piezas, el modo de representación de las figuras, los objetos que las acompañan y, de ese modo, esclarecer cuáles fueron las expectativas de la sociedad patriarcal respecto a las mujeres. La abundancia de motivos textiles, escenas de matrimonio y de acicalamiento en los vasos son evidencia de las obligaciones femeninas: una mujer virtuosa teje, cuida su belleza y procrea futuros ciudadanos.
The ecology of the Lower Cretaceous coelacanths from Las Hoyas Konservat- Lagerstätte (Cuenca, Spain): A new insight after the integration of palaeontological and sedimentological data
Authors: Martín-Abad Hugo , Fregenal- Martínez Marian
Published: December 2021

Coelacanths are very rare in the upper Barremian fossil site of Las Hoyas (Cuenca, Spain). However, being one of the few predatory ichthyophagous fishes preserved at the locality, understanding their ecology is fundamental to continue advancing in our comprehension of the dynamics of this palaeowetland. A previous study based on the size distribution of the coelacanth specimens suggests that a natural population of this species did not inhabit the excavated area of Las Hoyas, perhaps due to them practicing habitat partitioning. Here we analyze the sedimentological characteristics of the laminae where these fossils were preserved. In the light of the extensive previous knowledge on the stratigraphy, depositional environments and evolution of Las Hoyas, we conclude that coelacanth fossils are preserved in wet facies associations, indicating that they were not present in this part of the wetland permanently, but during periods of overall flooding of the system and high connectivity among the different environments composing the regionalscale wetland.
Complexification of the Exceptional Jordan Algebra and Its Application to Particle Physics
Authors:   Marin Drinov Academic Publishing House, Corradetti Daniele
Published: December 2021

Recent papers contributed revitalizing the study of the exceptional Jordan algebra $\mathfrak{h}_{3}(\mathbb{O})$ in its relations with the true Standard Model gauge group $\mathrm{G}_{SM}$. The absence of complex representations of $\mathrm{F}_{4}$ does not allow $\Aut\left(\mathfrak{h}_{3}(\mathbb{O})\right)$ to be a candidate for any Grand Unified Theories, but the automorphisms of the complexification of this algebra, i.e., $\mathfrak{h}_{3}^{\mathbb{C}}(\mathbb{O})$, are isomorphic to the compact form of $\mathrm{E}_{6}$ and similar constructions lead to the gauge group of the minimal left-right symmetric extension of the Standard Model.
Permutable Symmetric Hadamard Matrices in Quaternion Algebra and Engineering Applications
Authors:   Marin Drinov Academic Publishing House, Kharinov Mikhail V.
Published: December 2021

In this paper, aiming to develop the group and out-of-group formalization of the symmetry concept, the preservation of a matrix symmetry after row permutation is considered by the example of the maximally permutable \emph{normalized} Hadamard matrices which row and column elements are either plus or minus one. These matrices are used to extend the additive decomposition of a linear operator into symmetric and skew-symmetric parts using several commuting operations of the Hermitian conjugation type, for the quaternionic generalization of a vector cross product, as well as for creating educational puzzles and other applications.
Foliations Formed by Generic Coadjoint Orbits of a Class of Real Seven-Dimensional Solvable Lie Groups
Authors:   Marin Drinov Academic Publishing House, Nguyen Tuyen , Le Vu
Published: December 2021

In this paper, we consider exponential, connected and simply connected Lie groups which are corresponding to seven-dimensional Lie algebras such that their nilradical is a five-dimensional nilpotent Lie algebra $\mathfrak{g}_{5,2}$ given in Table~\ref{tab1}. In particular, we give a description of the geometry of the generic orbits in the coadjoint representation of some considered Lie groups. We prove that, for each considered group, the family of the generic coadjoint orbits forms a measurable foliation in the sense of Connes. The topological classification of these foliations is also provided.
A distributed residue network permits conformational binding specificity in a conserved family of actin remodelers
Authors: Hwang Theresa , Parker Sara S , Hill Samantha M , Ilunga Meucci W , Grant Robert A , Mouneimne Ghassan , Keating Amy E
Published: December 2021

Metazoan proteomes contain many paralogous proteins that have evolved distinct functions. The Ena/VASP family of actin regulators consists of three members that share an EVH1 interaction domain with a 100 % conserved binding site. A proteome-wide screen revealed photoreceptor cilium actin regulator (PCARE) as a high-affinity ligand for ENAH EVH1. Here, we report the surprising observation that PCARE is ~100-fold specific for ENAH over paralogs VASP and EVL and can selectively bind ENAH and inhibit ENAH-dependent adhesion in cells. Specificity arises from a mechanism whereby PCARE stabilizes a conformation of the ENAH EVH1 domain that is inaccessible to family members VASP and EVL. Structure-based modeling rapidly identified seven residues distributed throughout EVL that are sufficient to differentiate binding by ENAH vs. EVL. By exploiting the ENAH-specific conformation, we rationally designed the tightest and most selective ENAH binder to date. Our work uncovers a conformational mechanism of interaction specificity that distinguishes highly similar paralogs and establishes tools for dissecting specific Ena/VASP functions in processes including cancer cell invasion.
Distinguishing different modes of growth using single-cell data
Authors: Kar Prathitha , Tiruvadi-Krishnan Sriram , Männik Jaana , Männik Jaan , Amir Ariel
Published: December 2021

Collection of high-throughput data has become prevalent in biology. Large datasets allow the use of statistical constructs such as binning and linear regression to quantify relationships between variables and hypothesize underlying biological mechanisms based on it. We discuss several such examples in relation to single-cell data and cellular growth. In particular, we show instances where what appears to be ordinary use of these statistical methods leads to incorrect conclusions such as growth being non-exponential as opposed to exponential and vice versa. We propose that the data analysis and its interpretation should be done in the context of a generative model, if possible. In this way, the statistical methods can be validated either analytically or against synthetic data generated via the use of the model, leading to a consistent method for inferring biological mechanisms from data. On applying the validated methods of data analysis to infer cellular growth on our experimental data, we find the growth of length in E. coli to be non-exponential. Our analysis shows that in the later stages of the cell cycle the growth rate is faster than exponential.
Low-affinity integrin states have faster ligand-binding kinetics than the high-affinity state
Authors: Li Jing , Yan Jiabin , Springer Timothy A
Published: December 2021

Integrin conformational ensembles contain two low-affinity states, bent-closed and extended-closed, and an active, high-affinity, extended-open state. It is widely thought that integrins must be activated before they bind ligand; however, one model holds that activation follows ligand binding. As ligand-binding kinetics are not only rate limiting for cell adhesion but also have important implications for the mechanism of activation, we measure them here for integrins α4β1 and α5β1 and show that the low-affinity states bind substantially faster than the high-affinity state. On- and off-rates are similar for integrins on cell surfaces and as ectodomain fragments. Although the extended-open conformation’s on-rate is ~20-fold slower, its off-rate is ~25,000-fold slower, resulting in a large affinity increase. The tighter ligand-binding pocket in the open state may slow its on-rate. Low-affinity integrin states not only bind ligand more rapidly, but are also more populous on the cell surface than high-affinity states. Thus, our results suggest that integrin binding to ligand may precede, rather than follow, activation by ‘inside-out signaling.’
Why sex matters
Authors: Wlaschin Josette J , Hareendran Sangeetha , Le Pichon Claire E
Published: December 2021

The immune mechanisms underlying hypersensitivity to pain after nerve injury are different in male and female mice.
Digital Downsides in Teacher Education
Authors: Hatlevik Ove Edvard , Gudmundsdottir Greta Björk , Rohatgi Anubha
Published: December 2021

This paper is particularly relevant in the context of a global pandemic when the majority of teaching is conducted online or in a hybrid environment that requires long hours in front of a screen. Online teaching is becoming increasingly important throughout education, and our findings draw attention to some of the challenges and possible pitfalls of the extensive use of digital technologies and, consequently, implications for teacher education. In the paper, we explore student teachers’ perceptions of digital downsides, their teaching tools self-efficacy, their resilience to digital distractions, and physical discomfort from the use of digital technology. We aim to identify these four concepts and examine whether and how they interconnect. A cross-sectional design was used to analyse data from 561 first-year student teachers enrolled in two teacher education programmes in two universities in Norway in 2019. The findings indicate that resilience to digital distractions decreases and a higher level of reported physical discomfort from digital technology increases student teachers’ perceived downsides of digital technologies. Overall, 38% of the variation in perceived digital downsides within the two teacher education programmes can be explained by these two concepts, as well as to the study programme the student teachers attended.
Factors Associated with Intention to Comply with Infection Control Guidelines in Physicians and Nurses: An Analysis Based on the Theory of Planned Behavior
Authors: Choi Young Sin , Kim Su Hyun , Chang Hyun Ha
Published: December 2021

Purpose: This study aimed to identify factors affecting physicians and nurses’ intention to comply with healthcare-associated infection control guidelines, based on the theory of planned behavior.Methods: This study was a cross-sectional, descriptive survey. Data were collected using self-report questionnaires from 169 doctors and nurses at a tertiary hospital. Pearson correlation analysis and multiple regression analysis were used to analyze the factors influencing intention to comply with healthcare-associated infection control guidelines.Results: The mean score of intention to comply with infection control guidelines was 17.17±2.60 points (possible range 3-21 points). The intention to comply with infection control guidelines was positively associated with subjective norms and perceived behavioral control over compliance with healthcare-associated infection control guidelines. In the multiple regression analysis, perceived behavioral control was the only significant predictor of intention to comply with healthcare-associated infection control guidelines.Conclusion: In order to encourage doctors and nurses to comply with infection control guidelines, it is necessary to provide resources, enhance the work environment, and utilize strategies to increase perceived behavioral control over compliance with infection control guidelines.
Relationship between Social Network Characteristics, Flow in Class, Communication Skills, and Problem-solving Skills of Nursing Students in Simulation Nursing Education: Focusing on Social Network Analysis
Authors: Seo Hyung-Eun , Ji Eun-Joo
Published: December 2021

Purpose: The purpose of this study was to investigate the relationship between social network characteristics, flow in class, communication skills, and problem-solving skills of nursing students in simulation.Methods: For this study a descriptive survey design was used. Participants were 100 nursing students who attended in 2 university and completed the self-report questionnaire. Data were collected from October 14 to December 6, 2019 and were analyzed with SPSS 26.0, AMOS 21.0 and Netminer 4 evaluation version.Results: It was confirmed that the task advice network centrality of nursing students fully mediates their communication skills and affects their problemsolving skills and that friendship network centrality completely mediates flow in class and communication skills, and affects problem-solving skills. Task advice network centrality, friendship network centrality, flow in class, and communication skills were found to explain problem solving skills by 51.8%.Conclusion: In order to increase the problem-solving skills of nursing students in simulation nursing education, a strategy to improve their flow in class and communication skills is essential and it suggests the need to make it part of the curriculum. In addition, in order to increase the communication skills of nursing students, it is necessary to be careful when making a team to minimize the team members isolated within the team so that smooth interaction can occur.
The Effects of Classes using Virtual Reality Simulations of the Hospital Environment on Knowledge of the Hospital Environment, Academic Self-efficacy, Learning Flow, Educational Satisfaction and Academic Achievement in Nursing Students
Authors: Kim Myo-Gyeong , Kim Hye-Won
Published: December 2021

Purpose: This study examined the effects of virtual reality (VR)-based fundamental nursing education on nursing students’ knowledge of the hospital environment, academic self-efficacy, learning flow, educational satisfaction, and academic achievement.Methods: In total, 137 nursing students participated in this non-equivalent control group pretest-posttest study, with 69 and 68 in the experimental and control groups, respectively. Differences in the dependent variables between the two groups before and after the intervention were compared using the independent-sample t-test and Mann-Whitney U test.Results: The VR intervention group showed significantly higher knowledge of the hospital environment (t=3.88, p<.001), educational satisfaction (z=-3.82, p<.001), and academic achievement (z=-2.54, p=.011) than the control group.Conclusion: These findings indicate that VR-based education is an effective intervention for improving knowledge of the hospital environment, educational satisfaction, and academic achievement in nursing education.
The Influence of Self Esteem and Sexual Communication on Sexual Satisfaction of Colorectal Cancer Women with Ostomy
Authors: An Hae Jeong , Kang Sook Jung
Published: December 2021

Purpose: The purpose of this study was to identify the influence of self-esteem and sexual communication on sexual satisfaction among female colorectal cancer patients with ostomy.Methods: A cross-sectional descriptive study was conducted using self-reported online questionnaires. The participants were 85 women with colorectal cancer who had undergone ostomy formation surgery. Data were analyzed using descriptive statistics, the t-test, analysis of variance, the Scheffé test, correlation coefficients, and hierarchical multiple regression with SPSS version 26.0.Results: The mean sexual satisfaction score was 2.79±0.73 (range, 0~5). There was no significant relationship between self-esteem and sexual satisfaction. Sexual communication had a significant correlation with sexual satisfaction (r=.83, p<.001) and was a strong predictor of sexual satisfaction (β=.83, p<.001).Conclusion: The findings of this study indicate that colorectal cancer patients with ostomy experience low sexual satisfaction and that sexual communication is a meaningful factor for sexual satisfaction. Accordingly, nurses need to factor in sexual issues when caring for patients, and should encourage both patients and their partners to participate in education related to sexual health. It will also be helpful to inform patients about the importance of sexual communication with their partners as a sustainable intervention.
Коса Долгая — уникальный природный объект Азовского моря, "Природа"
Authors: Матишов Г.Г. , Степаньян О.В. , Хорошев О.А. , Григоренко К.С. , Савицкий Р.М.
Published: December 2021

Рассказывается о природе и истории косы Долгой, а также о результатах экспедиции, организованной Русским географическим обществом в июне—июле 2021 г. Проведена аэрофотосъемка косы, измерены морфометрические параметры береговых валов, формирующих ее аккумулятивное тело. На морской акватории изучено поле течений и термохалинная структура вод. Исследовано строение различных участков косы и состав современных и ископаемых (из кернов и береговых отложений) моллюсков, проведен отбор раковинного материала для определения абсолютного возраста береговых валов. Проводились орнитологические наблюдения. Выявлено, что пластиковый мусор становится ведущим фактором, влияющим на состояние популяций птиц, в том числе редких видов. Археологические находки на островах косы Долгой показали возможность их переноса течениями из разрушаемых памятников коренного берега. Выявлены многочисленные свалки мусора в местах «дикого» отдыха туристов, отмечено размывание свалок 1950–1960-х годов.
Cегнозавры — стопоходящие динозавры, "Природа"
Authors: Сенников А.Г.
Published: December 2021

На основании изучения следов Macropodosaurus gravis из нижнемеловых отложений Таджикистана и морфофункционального анализа посткраниального скелета сегнозавров рассмотрены особенности локомоции этих динозавров и обоснована гипотеза об их стопохождении.
Причины геофагии и редкоземельные элементы, "Природа"
Authors: Паничев А.М. , Барановская Н.В.
Published: December 2021

В результате проведенных исследований химического состава природных вод, почв, кудуров, а также тканей растений и животных в двух районах Сихотэ-Алиня и с учетом опубликованных данных по Африке других исследователей получены свидетельства в пользу «редкоземельной» гипотезы геофагии среди людей и животных. Ее суть в том, что геофагия проявляется в ландшафтах как с аномально высокими, так и с аномально низкими концентрациями редкоземельных элементов, но особенно там, где нарушено естественное соотношение редкоземельных элементов легкой и тяжелой подгрупп. Высказано предположение, что главный механизм геофагии — в регуляции концентрации и соотношения редкоземельных элементов в организме.
Сохранить и приумножить природное богатство: осетровые и сиговые рыбы (Томская область), "Природа"
Authors: Пигукова М.В.
Published: December 2021

Томская обл. лучше других регионов Западной Сибири обеспечена пресными внутренними водоемами. Водный фонд составляет около 2.5% от площади региона. Главная водная артерия региона — р.Обь. Она пересекает область по диагонали с юго-востока на северо-запад, деля ее на две почти равные части. Протяженность Оби здесь составляет 1065 км. На территории Томской обл. в Обь впадают реки Томь, Чулым, Чая, Кеть, Парабель, Васюган, Тым и др. Реки, кроме всего прочего, имеют важное рыбохозяйственное значение. Особенно это касается Оби с ее мощной пойменной системой. Промысловые запасы водных биоресурсов средней Оби весьма значительны, при этом немалую долю составляют ценные и особо ценные виды рыб. В Томской обл. находится 70% нерестилищ сиговых и осетровых видов, а также 30% осетровых зимовальных ям всего бассейна Оби. Это значит, что состояние запасов ценных видов Обского бассейна напрямую зависит от состояния их нерестовых стад в Томской обл.
В руках антропологов оживают тени предков, "Природа"
Authors: Бутовская М. Л.
Published: December 2021

Рецензия на книгу: С.В.Васильев, Е.В.Веселовская, Р.М.Галеев и др. ИСТОРИЯ РОССИИ В ЛИЦАХ (ПО МАТЕРИАЛАМ АНТРОПОЛОГИЧЕСКОЙ РЕКОНСТРУКЦИИ) / Отв. ред. С.В.Васильев, Е.В.Веселовская, О.М.Григорьева. М.: «АМА-ПРЕСС», 2019. 136 с.
КРЫМСКАЯ АСТРОНОМИЧЕСКАЯ СТАНЦИЯ им. Э.А. ДИБАЯ ГАИШ МГУ — ИСТОРИЯ И ПЕРСПЕКТИВЫ, "Земля и Вселенная"
Authors: Колотилов Е.А. , Татарникова А.А.
Published: December 2021

В 2021 году исполняется 90 лет Государственному астрономическому институту им. П.К. Штернберга. С самого начала институт имел практическую направленность – он вырос из обсерватории МГУ на Красной Пресне (которая на целый век старше ГАИШ). Во все годы институт имел загородные базы, однако первой, по-настоящему наблюдательной базой, несомненно, является Крымская астрономическая станция. При распаде СССР в начале 90-х годов прошлого века Государственный астрономический институт им. П.К. Штернберга потерял две из трех наблюдательных баз – Алма-Атинскую в Казахстане и Майданакскую в Узбекистане. В российской собственности в силу определенных обстоятельств осталась южная база в Крыму. И только весной 2014 г., после воссоединения Крыма с Россией, ее принадлежность ГАИШ МГУ была закреплена окончательно. Мы рассмотрим ниже прошлое, настоящее и возможное будущее этой базы.
РЕЧЬ С.Ф. ПЛАТОНОВА В ПАМЯТЬ О В.В. БАУЭРЕ, "Средние века"
Authors: Митрофанов В.В.
Published: December 2021

Вводится в научный оборот ранее не публиковавшаяся речь (некролог) С.Ф. Платонова, посвященная памяти бывшего декана историко-филологического факультета Санкт-Петербургского университета В.В. Бауера. Это первое публичное выступление после смерти профессора, где дана объективная оценка его преподавательской и научной деятельности. Выступавший наметил основные подходы к критериям для создания образа «идеального ученого», которые получат свое развитие и конкретизацию в более поздних исследованиях ученого.
ЭКОНОМИКА И ГЕОПОЛИТИКА ТРАНСПОРТНЫХ КОРИДОРОВ, "Энергия: экономика, техника, экология"
Authors: Ефименко Д.Б.
Published: December 2021

Означении автодорожной инфраструктуры для социально-экономического развития России, о включённости страны в международные транспортные мегапроекты и эффективном использовании для этого инструментов транспортной политики рассказывает исполняющий обязанности ректора Московского Автомобильно-дорожного государственного технического университета (МАДИ) Дмитрий ЕФИМЕНКО.
РОЛЬ ТЕРМИНОЛОГИИ В РАЗВИТИИ ФИЗИКИ, "Энергия: экономика, техника, экология"
Authors: Самохин А. А.
Published: December 2021

Наука занимается добычей новых знаний о природе, обществе и нас самих. Как и во многих других сферах деятельности, важную роль при этом играет чёткость и определённость используемых терминов, то есть названий рассматриваемых объектов, состояний, процессов и т.п.
ПАЦИЕНТЫ С ХРОНИЧЕСКОЙ ОБСТРУКТИВНОЙ БОЛЕЗНЬЮ ЛЕГКИХ: ОПЫТ РЕАЛЬНОЙ КЛИНИЧЕСКОЙ ПРАКТИКИ, "Вестник Центрального научно-исследовательского института туберкулеза"
Authors: Салахова И.Н.
Published: December 2021

Введение. В настоящее время хроническая обструктивная болезнь легких (ХОБЛ) является мировой проблемой. Однако точная распространенность ХОБЛ во всем мире в значительной степени неизвестна, но оценки варьируют в пределах 7–19%. В популяционном эпидемиологическом исследовании, проведенном в 12 регионах России (в рамках программы General Assembly Meeting of the Global Alliance against Chronic Respiratory diseases – GARD), и включавшем 7164 пациента, распространенность ХОБЛ среди лиц с респираторными симптомами составила 21,8%, а в общей популяции – 15,3% В Республике Татарстан показатели заболеваемости имеют тенденцию к снижению на протяжении последних двух лет: 2008 г. – 343,8; 2010 г. – 514,8; 2016 г. – 550,7; 2019 г. – 329,9 случаев на 100 000 взрослого населения. Однако за последние время не проводилось активного анализа оказания медицинской помощи пациентам с ХОБЛ в условиях меняющихся классификаций с оценкой уровня терапевтиеского сотрудничества и частотой обострений. Цель исследования: оценка клинического, лабораторного и функционального состояния пациентов с ХОБЛ с различной частотой обострений и приверженностью к назначенной терапии.
ЭФФЕКТИВНОСТЬ ЛЕЧЕНИЯ БОЛЬНЫХ ТУБЕРКУЛЕЗОМ С ШИРОКОЙ ЛЕКАРСТВЕННОЙ УСТОЙЧИВОСТЬЮ ВОЗБУДИТЕЛЯ, ПРОЖИВАЮЩИХ В СЕЛЬСКОЙ МЕСТНОСТИ, "Вестник Центрального научно-исследовательского института туберкулеза"
Authors: Дьяков А. В.
Published: December 2021

Введение.Туберкулез (ТБ) органов дыхания с широкой лекарственной устойчивостью (ШЛУ) в настоящее время получил большое распространение. Так, если в 2009 г. среди пациентов с бактериовыделением, состоявших на учете в противотуберкулезных диспансерах Российской Федерации, распространение множественной лекарственной устойчивости (МЛУ) и ШЛУ составляло 13%, то в 2019 г. – 30,1%. Длительность лечения пациентов с ШЛУ по V режиму приближается к 24 месяцам. Длительное лечение несколькими препаратами связано с риском развития нежелательных эффектов и при общем удовлетворительном самочувствии пациента неизбежно приводило к временному перерыву или отказу от терапии. Такое положение особенно характерно для пациентов, проживающих в сельской местности. В период с 2008 по 2013 г. в Курской области среди данной категории больных наблюдалось 32,3% прерываний лечения, а достижение эффективного курса лечения, подтвержденного методами микроскопии и посева, – только 23,5%. Ряд административных мер по обеспечению приверженности больных к лечению и, соответственно, повышению эффективности химиотерапии, в том числе в условиях амбулаторной помощи были предприняты в 2013 г. Цель исследования: изучить эффективность лечения больных с ШЛУ возбудителя, проживающих в сельской местности.
Geo-spatial Assessment of Land Use/Land Cover (LU/LC) Dynamics in Akoko South West Local Government, Ondo State, Nigeria
Authors: Ibilewa Dada , Aliyu Mustapha , Alalu Usman O. , Abdulrasheed Taiwo Hassan
Published: December 2021

Geo-spatial assessment of land use/cover dynamics in Akoko South West Local Government was instigated to bridge the knowledge gap created by data deficiency on the nature, scope and magnitude of land use/cover change in the area. This was done through the analysis of Landsat images of three epochs from 2000 through 2010 to 2020. The processing of the satellite images was done in ArcGIS 10.8 while the analysis and 2030 projection was done in Microsoft office excel using the result from the analysis. QGIS was used to remove the scan lines error on the 2010 image. The result showed increasing built-up area, reducing vegetation and farmlands and diminishing rock outcrops. The changes vary among the different classification characteristics. The increasing change in the second epoch was higher in built up areas while rock outcrops increased in the first epoch. Farmland and vegetation were on reducing trend throughout the study period. However, the moderate change observed in the second epoch for the two land cover classes were not as significant as the first epoch. Government policies on forest reserve should strictly be adhered to in order to preserve the vegetation in the area. People of the area should be advised to diversify their economy in order to avoid total dependence on the forest reserve.
A 10 Years Old Child Presented with Hemiparesis and Moyamoya Disease – A Case Report
Authors: Seth Nikita H. , Bele Ashish W. , Singh Nivedita Chandrapal , Qureshi Mohd Irshad , Kulkarni Chaitanya A.
Published: December 2021

Introduction:  In Moyamoya disease there is long standing, continuous developing occlusion of the arteries of Circle of Willis which leads to development of typical collateral vessels seen on cerebral angiogram. Moyamoya Disease was diagnosed on performing the MR Angiography. Child with Moyamoya disease presents with recurrent episodes of sudden hemiplegia that might occur at alternative sides. The disease is progressive and dynamic in children. Acute management of this disease is symptomatic. MR Angiography clinches the diagnosis and neurosurgical intervention with physiotherapy which may be required as a part of definitive management. Objectives: Our case brings forth the significance of considering Moyamoya Disease to be classic etiology for acute ischemic strokes in children.

Case Report:  We report a rare case of 10 year old female child who was admitted at our medical center for the complaints of transient ischemic attack & left side hemiparesis with left facial palsy. In respect to our case, surgical intervention was not considered due to having satisfactory response on the commencing medical management.

Conclusion:  Our case brings forth the importance of considering MMD to be classic etiology for acute ischemic strokes in children .MMD is main diagnosis when we evaluate the children with cerebrovascular events. To asses this non operative MR angiography is investigation of choice.  For favourable outcome in children with Moyamoya disease the key is early diagnosis and management.