bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dobra pomorzańskie Kierdejów (Kierdejowiczów) w ziemi lwowskiej w XV wieku
Authors: Szyszka Janusz 
Published: December 2020

Artykuł poświęcony jest dziejom dóbr pomorzańskich położonych w ziemi lwowskiej do końca XV wieku. Kompleks ten leżał w dorzeczu rzeki Złota Lipa wokół miasta i zamku Pomorzany. Zachowane źródła pozwalają na prześledzenie i analizę procesu powstawania tych dóbr. Wynika z niej, że już w najwcześniejszym uchwytnym źródłowo okresie dobra położone w dolinie jednej rzeki i jej dopływów tworzyły wspólną ekumenę osadniczą, co było m.in. uwarunkowane ukształtowaniem tej części płaskowyżu podolskiego. Podmokłe i szerokie doliny rzeczne o łagodnych zboczach tworzyły korzystniejsze warunki dla osadnictwa niż strome i gęsto porośnięte lasami grzbiety. Te górne partie płaskowyżu początkowo pozostawały poza strefą osadnictwa. Właścicielami dóbr pomorzańskich była zamożna bojarska rodzina Kierdejów wywodząca się z Wołynia i Podola. Jej cztery linie (Świnkowie, Kierdejowie z Pomorzan – potomkowie Jana Hryćka, Szpikłoscy i Urmańscy) na dobre związały się z tym majątkiem aż do wygaśnięcia w dramatycznych okolicznościach na przełomie XV i XVI wieku dwóch pierwszych z nich, dziedziczących w Pomorzanach. Kierdejowie, sprawnie zarządzając dobrami, przekształcili je w XV wieku w nowoczesny i dobrze rozwinięty kompleks majątkowy. Dzięki kolonizacji wewnętrznej zagęścili osadnictwo i zaczęli w pełni wykorzystywać gospodarczo do tej pory niedostępne przestrzenie wewnątrz tych dóbr poprzez zagospodarowanie lasów porastających górne partie grzbietów, osuszenie części mokradeł, spiętrzenie rzek i potoków, tworząc łańcuchy stawów. Powiększyli też obszar dóbr pomorzańskich poprzez przejmowanie i zasiedlanie pustek osadniczych leżących na zewnątrz. Przykład ten znakomicie ilustruje charakterystyczny dla Rusi Czerwonej tego okresu proces linearyzacji granic własności ziemskiej poprzez zajmowanie pustek osadniczych i stopniowe zwężanie, a w konsekwencji likwidację granic strefowych między włościami. Powstała w tym czasie i rozwijana w kolejnych stuleciach struktura osadnicza miała wpływ na rozwój organizacji przestrzeni geograficznej i krajobrazu do czasów industrialnych, a jej ślady zachowały się po dziś dzień.
East Indian Hygrophila: Hygrophila polysperma (Roxb.) T. Anderson
Authors: Gettys Lyn A. , Enloe Stephen F. 
Published: December 2020

East Indian hygrophila, also known as Miramar weed, Indian swampweed, and hygro, is an invasive aquatic plant that grows under submersed and emergent conditions. The species is a federally listed noxious weed and a Florida Class II prohibited aquatic plant. East Indian hygrophila was first introduced to the United States as an aquarium plant around 1945. The first recorded sighting of East Indian hygrophila in Florida occurred near Tampa in 1965; by 1980, it had become a weed problem in southern Florida canals, and by 1994 it had spread to 18 of Florida’s public water bodies. This paper outlines the biology, ecology, invasion characteristics and environmental impacts of East Indian hygrophila and and management of this noxious weed.
Fire Ant Decapitating Flies Pseudacteon spp. (Insecta: Diptera: Phoridae)
Authors: McCorquodale Ariane , Cuda James P. , Porter Sanford D. 
Published: December 2020

Previously published on the Featured Creatures website at http://entnemdept.ufl.edu/creatures/beneficial/flies/ant_decapitating_phorids.htm
HUBUNGAN ANTARA SUMBER INFORMASI DENGAN PENGETAHUAN REMAJA PUTRI TENTANG RESIKO PERNIKAHAN DINI TERHADAP KESEHATAN REPRODUKSI DI SMAN 1 CIBINGBIN TAHUN 2020
Authors: Nurasiah Ai , Rizkiyani Ai , Heriana Cecep 
Published: December 2020

Pernikahan dini pada remaja akan berdampak buruk terhadap kesehatan reproduksi diantaranya abortus, persalinan premature, anemia kehamilan, berat badan lahir rendah, kelainan bawaan, mudah terjadi infeksi dan kematian pada ibu. Data Kementrian Agama Kabupaten Kuningan pada tahun 2019 dari 32 kecamatan jumlah remaja yang melakukan pernikahan di usia kurang dari 19 tahun yaitu 74 orang terdiri dari remaja laki-laki dengan jumlah 31 orang dan remaja putri dengan jumlah 43 orang. Tujuan penelitian ini menganalisis hubungan antara sumber informasi dengan pengetahuan remaja tentang resiko pernikahan dini terhadap kesehatan reproduksi di SMAN 1 Cibingbin kabupaten kuningan tahun 2020. Jenis penelitian adalah penelitian analitik dan rancangan penelitian crossectional. Teknik pengambilan sampling dalam penelitian menggunakan teknik purposive, yaitu remaja putri kelas XII di SMAN 1 Cibingbin yang berjumlah 65 orang. Analsis data menggunakan analisis bivariat dan instrument yang digunakan dengan menggunakan kuesioner on line. Hasil analisis univariat diketahui bahwa dari 65 remaja putri sebagian besar memiliki pengetahuan baik sebanyak 49,23%, sebagian besar remaja putri memiliki mendapatkan informasi langsung melalui guru sebanyak 53,84%, dan sebagian besar memiliki pengetahuan dari sumber informasi tidak langsung internet sebanyak 55,39%. Hasil analisis bivariate terdapat hubungan antara sumber informasi langsung dengan pengetahuan remaja dengan nilai p=0,007 dan tidak ada hubungan antara sumber informasi langsung dengan pengetahuan remaja dengan nilai p=0,624. Saran kepada SMAN 1 Cibingin agar dapat memberikan lebih banyak lagi pengetahuan tentang kesehatan reproduksi sehingga remaja putri lebih paham tentang resiko pernikahan dini terhadap kesehatan reproduksi dan dapat menunda pernikahan diusia muda
Accuracy of Current Non-invasive Methods in Estimating Aortic Coarctation Gradients
Authors: Atiyah Wejdan Khaled Ba- , Zahr Riad Abou , Ahmad Zaheer , Mahdi Yahia Mohamed El , Galal Mohammed Omar 
Published: December 2020

Aims: To understand the accuracy of non-invasively obtained blood pressure gradients (cuff vs Doppler gradient) with an invasively measured pressure gradient.
Study Design: Retrospective study.
Place and Duration of Study: Department of Pediatrics, Section of Pediatric Cardiology, King Faisal Specialist Hospital & Research Center, Jeddah, Saudi Arabia, between Jan, 2010 till Jan, 2020.
Methodology: A retrospective study of patients with CoA who underwent cardiac catheterization between Jan, 2010 till Jan, 2020 was performed. Cuff BP gradients and Doppler echocardiography were measured prior to cardiac catheterization and afterwards, when an intervention was performed. Student t test and Bland-Altman analysis were performed.
Results: 55 patients with aortic coarctation underwent 92 cardiac catheterizations. Among them 75 needed interventions. This resulted in a total of 162 cardiac catheterizations (cath), from them 67 pressure gradients included in the analysis. There was no statistically significant difference between mean Doppler measurements and invasively derived catheter gradients (p=0.12). In contrast peak Doppler measurement (p < 0.00001) and cuff blood pressure gradients (p=0.03) showed significant differences to the cath gradient. We found that cuff blood pressure gradients accurately reflected cath measurement in native COA (p=0.40) and in those who weigh less than 10 kg (p=0.67). Mean Doppler measurements had a small tendency for underestimation. Peak Doppler gradient and cuff pressure gradient usually overestimated cath measurement.
Conclusion: The mean Doppler echocardiography seems to be the most accurate among the other noninvasive methods in use to estimate severity of aortic coarctation. It provided reasonable agreement with the invasively obtained aortic coarctation gradient.
Deep Learning Enables Superior Photoacoustic Imaging at Ultralow Laser Dosages
Authors: Zhao Huangxuan , Ke Ziwen , Yang Fan , Li Ke , Chen Ningbo , Song Liang , Zheng Chuansheng , Liang Dong , Liu Chengbo 
Published: December 2020

AbstractOptical‐resolution photoacoustic microscopy (OR‐PAM) is an excellent modality for in vivo biomedical imaging as it noninvasively provides high‐resolution morphologic and functional information without the need for exogenous contrast agents. However, the high excitation laser dosage, limited imaging speed, and imperfect image quality still hinder the use of OR‐PAM in clinical applications. The laser dosage, imaging speed, and image quality are mutually restrained by each other, and thus far, no methods have been proposed to resolve this challenge. Here, a deep learning method called the multitask residual dense network is proposed to overcome this challenge. This method utilizes an innovative strategy of integrating multisupervised learning, dual‐channel sample collection, and a reasonable weight distribution. The proposed deep learning method is combined with an application‐targeted modified OR‐PAM system. Superior images under ultralow laser dosage (32‐fold reduced dosage) are obtained for the first time in this study. Using this new technique, a high‐quality, high‐speed OR‐PAM system that meets clinical requirements is now conceivable.
Macromolecular Design of Lithium Conductive Polymer as Electrolyte for Solid‐State Lithium Batteries
Authors: Meng Nan , Lian Fang , Cui Guanglei 
Published: December 2020

AbstractIn the development of solid‐state lithium batteries, solid polymer electrolyte (SPE) has drawn extensive concerns for its thermal and chemical stability, low density, and good processability. Especially SPE efficiently suppresses the formation of lithium dendrite and promotes battery safety. However, most of SPE is derived from the matrix with simple functional group, which suffers from low ionic conductivity, reduced mechanical properties after conductivity modification, bad electrochemical stability, and low lithium‐ion transference number. Appling macromolecular design with multiple functional groups to polymer matrix is accepted as a strategy to solve the problems of SPE fundamentally. In this review, macromolecular design based on lithium conducting groups is summarized including copolymerization, network construction, and grafting. Meanwhile, the construction of single‐ion conductor polymer is also focused herein. Moreover, synergistic effects between the designed matrix, lithium salt, and fillers are reviewed with the objective to further improve the performance of SPE. At last, future studies on macromolecular design are proposed in the development of SPE for solid‐state batteries with high energy density and durability.
Extrinsic Photoconduction Induced Short‐Wavelength Infrared Photodetectors Based on Ge‐Based Chalcogenides
Authors: He Ting , Wang Zhen , Cao Ruyue , Li Qing , Peng Meng , Xie Runzhang , Huang Yan , Wang Yang , Ye Jiafu , Wu Peisong , Zhong Fang , Xu Tengfei , Wang Hailu , Cui Zhuangzhuang , Zhang Qinghua , Gu Lin , Deng Hui‐Xiong , Zhu He , Shan Chongxin , Wei Zhongming , Hu Weida 
Published: December 2020

Abstract2D layered photodetectors have been widely researched for intriguing optoelectronic properties but their application fields are limited by the bandgap. Extending the detection waveband can significantly enrich functionalities and applications of photodetectors. For example, after breaking through bandgap limitation, extrinsic Si photodetectors are used for short‐wavelength infrared or even long‐wavelength infrared detection. Utilizing extrinsic photoconduction to extend the detection waveband of 2D layered photodetectors is attractive and desirable. However, extrinsic photoconduction has yet not been observed in 2D layered materials. Here, extrinsic photoconduction‐induced short‐wavelength infrared photodetectors based on Ge‐based chalcogenides are reported for the first time and the effectiveness of intrinsic point defects are demonstrated. The detection waveband of room‐temperature extrinsic GeSe photodetectors with the assistance of Ge vacancies is broadened to 1.6 µm. Extrinsic GeSe photodetectors have an excellent external quantum efficiency (0.5%) at the communication band of 1.31 µm and polarization‐resolved capability to subwaveband radiation. Moreover, room‐temperature extrinsic GeS photodetectors with a detection waveband to the communication band of 1.55 µm further verify the versatility of intrinsic point defects. This approach provides design strategies to enrich the functionalities of 2D layered photodetectors.
Severe respiratory disease caused by human respiratory syncytial virus impairs language learning during early infancy
Authors: Peña Marcela , Jara Cristina , Flores Juan C. , Hoyos-Bachiloglu Rodrigo , Iturriaga Carolina , Medina Mariana , Carcey Javier , Espinoza Janyra , Bohmwald Karen , Kalergis Alexis M. , Borzutzky Arturo 
Published: December 2020

AbstractHuman respiratory syncytial virus infection is a leading cause of pediatric morbidity and mortality. A previous murine study showed that during severe acute respiratory infections the virus invades the central nervous system, and that infected animals evolve with long-lasting learning difficulties associated with long-term potentiation impairment in their hippocampus. We hypothesized here that human infants who presented a severe episode of respiratory syncytial virus infection before 6 months of age would develop long-term learning difficulties. We measured the acquisition of the native phoneme repertoire during the first year, a milestone in early human development, comprising a reduction in the sensitivity to the irrelevant nonnative phonetic information and an increase in the sensitivity to the information relevant for the native one. We found that infants with a history of severe respiratory infection by the human respiratory syncytial virus presented poor distinction of native and nonnative phonetic contrasts at 6 months of age, and remained atypically sensitive to nonnative contrasts at 12 months, which associated with weak communicative abilities. Our results uncover previously unknown long-term language learning difficulties associated with a single episode of severe respiratory infection by the human respiratory syncytial virus, which could relate to memory impairments.
An approach to the didactics of physics for structural engineering from an artistic perspective
Authors: Márquez Peñaranda J F , Gallardo Pérez H J , Vergel Ortega M 
Published: December 2020

Abstract
The use of physics in structural engineering requires the combination of its logical strength with social sensitivity. Logical strength is provided by mathematics and physics with practical solutions and new thinking relationships. Social sensitivity is achieved by inserting this “hard” knowledge into the solution of community problems. It is desirable that the teaching of physics and its applications prioritize holistic knowledge over mechanicity and that this process be similar to the one followed by the artist when he conceives his work: he dreams it, tries it, feels it, and adjusts and delivers it after having understood it with his whole being. In terms of curriculum, it is advisable to rethink the contents, encourage the use of majeutics, reduce standardization, personalize evaluation, and abolish the belief that there can be useless knowledge.
Case studies: learning strategy incorporating Lego Education in the seventh-grade math course at the school
Authors: Rico-Bautista N A , Rico-Bautista D W , Medina-Cárdenas Y C , Arévalo-Pérez N 
Published: December 2020

Abstract
This article presents reflections on the use of case studies that revolve around the student’s environment to use it as an input in the development of the mathematics course in the seventh grades at the “Isidro Caballero Delgado” school in Floridablanca, Santander, Colombia. With this experience, it can be determined that the use of robotics prototypes in mathematics is a support tool as a pedagogical strategy in the student’s learning process, strengthening not only the academic but also their comprehensive training. That is why students use the construction of the prototypes not only to learn mathematical concepts for better understanding, analysis, and critical reasoning but also to develop technical language in an empirical way giving answers to the laws of physics in the prototype or its function. This work is part of doctoral research where 60 students of the experimental group participated. The structure of the document contains a first section with the introduction, second section where the methodology and the applied strategy are detailed; in section third the results obtained are mentioned; and finally, in fourth section, the conclusions and possible recommendations are presented.
Social skills of physics students in the mathematics degree program
Authors: Jaramillo J E , Rincón Leal J F , Rincón Leal O L 
Published: December 2020

Abstract
The research had as objective to identify the social skills of first semester students of the mathematics program of Universidad Francisco de Paula Santander, Colombia, assigned in the subject of physics I, with a sample of 21 participants between 17 and 21 years old of the stratum 1 and 2, from which only 4.8% of the students work and study, the remaining 95.2% only study. 57% of the participants are women and 47% men, it is also evident that they currently reside in San José de Cúcuta, Colombia, the research under the positivist paradigm with a quantitative approach of quasi-experimental design of descriptive type, were applied: the questionnaire of the scale of social skills, and test of attitudes in physics which is constructed by 50 items that classify the social skills in 6 groups and 20 items in the test of physical attitude with a reliability in the alpha index of 0. 79 The statistical software SPSS version 23 was used for data analysis and the Google form tool for data collection.
Stability and nonlinear secondary modes of double-periodic flows with pumping
Authors: Wertgeim I I , Zaks M A , Sagitov R V , Sharifulin A N 
Published: December 2020

Abstract
We investigate, both qualitatively and numerically, the family of forced doubly periodic plane flows of viscous fluids. These flows generalize the seminal Kolmogorov flow to the case of two-dimensional periodicity of the driving force and to the presence of pumping in two spatial directions. The dimensionless parameters of the problem are the flow rates in two perpendicular directions, the forcing intensity, and two spatial periods of the force. The Kolmogorov flow itself corresponds to the particular case when the force depends on a single coordinate and the mean drift is absent. When the forcing amplitude is increased, the basic stationary flow pattern, described by the explicit solution of the Navier-Stokes equations, displays structural rearrangements: isolated vortices appear on the background of the global flow. In the present study, we consider destabilization of the basic flow pattern: there, onset of time dependence can influence the previously reported unusual spectral and transport properties of Lagrangian dynamics. Analysis of possible stationary states, of their stability and forms of the secondary oscillatory and stationary modes is performed. Equations of fluid dynamics are solved numerically through the spectral and finite-difference methods. Stability of explicit stationary solutions with respect to small hydrodynamical perturbations is investigated.
Isotropic turbulence correlation functions modelling on the basis of Karman-Howarth equation
Authors: Kusyumov A N , Mikhailov S A , Kusyumov S A , Romanova E V 
Published: December 2020

Abstract
A closure model for the von Karman-Howarth equation is considered. The offered algebraic closure model is based on a single spatial-point third-order correlation function, unlike the widely used models based on a distance between two separated points. The model holds for homogeneous isotropic turbulence theory. Numerical solution of the von Karman-Howarth equation for the flow behind a bi-plane grid of circular cylinders in comparison to experimental data is presented.
The influence of the supersonic nozzle length on the efficiency of energy separation of low-Prandtl gas flowing in the finned single Leontiev tube
Authors: Makarov M S , Makarova S N 
Published: December 2020

Abstract
The redistribution of the total temperature between the parts of the gas stream flowing through the Leontiev tube depends not only on the temperature recovery factor (Prandtl number) and the ratio of flows through the supersonic and subsonic channels of the tube (Mach numbers), but also on the thermal resistance of the separation wall. Earlier it has been shown that the reduction of thermal resistance due to the separation wall finning on the side of the subsonic flow leads to an increase in the efficiency of energy separation. It may be assumed that the intensification of heat exchange between channels, due to finning, reduces the length of the tube, which at the same intensity of heat exchange leads to a decrease in pressure losses and an additional increase in efficiency. This paper presents the results of numerical simulation of energy separation in Leontiev tubes with a finned separation wall and different lengths of supersonic nozzle. It is shown that the adiabatic efficiency of the energy separation in a short Leontiev tube with a finned wall increases when the outlet pressure decreases, while it does not change for smooth tubes.
The effect of periodic velocity variation on turbulent characteristics of a channel flow behind a rib
Authors: Mikheev A N , Mikheev N I , Davletshin I A 
Published: December 2020

Abstract
The kinematic structure of the flow behind a rib is experimentally investigated for the cases of steady-state and pulsating regimes of air flow. The frequency varies in the range of 0 – 30 Hz, and the normalized amplitude of forced velocity pulsations is 0.5. The profiles of velocity and turbulent characteristics are demonstrated at characteristic coordinates of the separation region.
Control of vortex breakdown in confined two-fluid flows
Authors: Naumov I V , Sharifullin B R , Shtern V N 
Published: December 2020

Abstract
This paper describes the first experimental evidence of how vortex breakdown develops and disappears in both upper and lower fluids in a sealed vertical cylindrical container, where two immiscible fluids circulate driven by the rotating lid while other walls are stationary. The rotating lid generates both swirling and meridional circulations of the upper and lower fluids. The most intriguing and practically important flow phenomenon is the formation of local circulation cells (vortex breakdown). Our experimental study reveals that vortex breakdown can occur in (a) upper, (b) lower, and (c) both fluids. The kind of flow pattern depends on properties of liquids. The vortex breakdown flows can intensify heat and mass transfer.
Numerical simulation of filtration of a water-gas-oil mixture in a porous medium under the acoustic influence
Authors: Pityuk Yu A , Fazletdinov S U , Fakhreeva R R 
Published: December 2020

Abstract
The work is dedicated to the water-alternating-gas injection in oil reservoirs under the influence of a periodic acoustic field. The problem is solved numerically using the control volume method. The mathematical model includes the conservation equations describing the three-phase filtration of water with gas bubbles, oil, and free gas into an element of porous medium taking into account the growth of microbubbles, the formation of free gas, the fluid flow with slippage, the compressibility of a crack network, and the non-isothermal character of the process. Multiparametric calculations are conducted to obtain the dependence of the exposure duration, the residual effect, and amplitude of an acoustic field on the oil displacement. Numerical analysis showed that the acoustic field has a positive effect on the filtration properties of a fluid, which is important for developing the technology of oil recovery.
Modeling wave modes for a countercurrent flow of film and turbulent gas
Authors: Tsvelodub Yu 
Published: December 2020

Abstract
In this paper, wave modes are modeled for a countercurrent flow of vertically falling liquid film and turbulent gas. In the case of small Reynolds numbers for long wave perturbations, the problem is reduced to a nonlinear integro-differential equation for the film thickness deviation from the undisturbed level. Solutions of this model equation are studied. Several typical scenarios for the evolution of periodic perturbations are presented