bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of Isometric Exercise Combined With Electromyostimulation on Inflammatory Cytokine Levels, Muscle Strength, and Knee Joint Function in Elderly Women With Early Knee Osteoarthritis
Authors: Park Sunhee , Min Sukyung , Park Si-Hwa , Yoo Jaehyun , Jee Yong-Seok 
Published: July 2021

Background and Objectives: Muscle strengthening exercise is suggested to beneficial for patients with knee osteoarthritis (OA) and electrical muscular stimulation is reported to be effective in improvement of muscle strength. This study examined whether isometric exercise combined with whole body-electromyostimulation (WB-EMS) can improve serum cytokine levels, muscle strength, and knee function in elderly women with early knee OA.Materials and Methods: This randomized controlled study included 75 participants assigned into three groups: the control group (CON), isometric exercise group (ISOM), and isometric exercise and electromyostimulation group (ISOM + EMS). The two exercise groups performed their respective programs for 8 weeks, 3 days a week, 30 min a day. The main exercises for both groups were performed continuously during the 20 min in an alternation of a 6-s contraction with a 4-s break. At pre- and post-intervention, anthropometric variables, muscle strength, Knee Injury and Osteoarthritis Outcome Score (KOOS), and blood sampling for biomarkers including interleukin-6, tumor necrosis factor-α, C-reactive protein, and resistin were performed.Results: All variables at pre-intervention showed no significant differences among the three groups. However, there were significant differences between groups for body composition, muscle strength, KOOS subscale scores, and biomarkers. ISOM + EMS group resulted in a significant reduction in body weight, fat mass, fat percentage, inflammatory cytokine levels, and increased muscle strength. An ISOM + EMS group had the best KOOS score among all groups.Conclusion: Isometric exercise combined with WB-EMS resulted in the best overall improvements in knee function and alleviating the pain and symptoms of patients with early knee OA. Further, reduced levels of inflammatory cytokines were observed. These non-pharmacologic, non-invasive interventions should be considered by healthcare specialists for elderly patients with early knee OA.
Decreasing Psychiatric Emergency Visits, but Stable Addiction Emergency Visits, During COVID-19—A Time Series Analysis 10 Months Into the Pandemic
Authors: Håkansson Anders , Grudet Cécile 
Published: July 2021

Background: The COVID-19 pandemic has been suspected to increase mental health problems, but also to possibly lead to a decreased treatment seeking, for example due to fear of attending hospital. Early findings demonstrate decreased treatment seeking for mental health, which may differ across diagnostic groups. This study aimed to examine treatment uptake at a general psychiatry emergency unit and at an addiction psychiatry emergency unit in Malmö, Sweden, separately. In addition, the study aimed to investigate treatment uptake for different diagnostic groups—during and prior to the COVID-19 pandemic.Methods: Monthly data for number of unique patients and number of contacts were extracted for the three-year period of January 2018 through December 2020. Data from each facility were analyzed separately for women, men and patients with psychotic, affective, anxiety and substance use-related disorders. Interrupted time series were used to demonstrate possible effects of COVID-19.Results: COVID-19 was associated with a marked decrease in treatment contacts, both for women and men, in the general psychiatry emergency unit—driven by a significant decrease in anxiety-related disorders (p &lt; 0.001) and affective disorders (p &lt; 0.01)—but not in psychotic or substance use disorders (SUDs). Also, in the addiction psychiatry emergency unit, no significant impact of COVID-19 was seen.Conclusions: COVID-19 may decrease treatment uptake for acute affective and anxiety-related disorders. Given the hypothesized increase in the population regarding these conditions, societal efforts are needed to facilitate adequate treatment for these patients during the COVID-19 pandemic. Society should also remain vigilant with respect to SUDs during the pandemic.
Gray Matter Volume in the Developing Frontal Lobe and Its Relationship With Executive Function in Late Childhood and Adolescence: A Community-Based Study
Authors: Sung Dajung , Park Bumhee , Kim Bora , Kim Hayeon , Jung Kyu-In , Lee Seung-Yup , Kim Bung-Nyun , Park Subin , Park Min-Hyeon 
Published: July 2021

Background: During late childhood and adolescence, the frontal lobe undergoes critical developmental changes, affecting a wide range of executive functions significantly. Conversely, abnormality in the maturation of the frontal lobe during this period may result in a limited ability to effectively use various executive functions. However, at present, it is still unclear how the structural development of the frontal lobe is associated with different aspects of executive functions during this developmental period. To fill the gap in evidence, we aimed to elucidate gray matter volume (GMV) in the frontal lobe and its relationship with multiple aspects of executive functions in late childhood and adolescence.Methods: We recruited our participants aged between 6 and 17 years to assess GMV in the frontal lobe and its relationship with different domains of executive functions in late childhood and adolescence. We used the voxel-based morphometry–DARTEL procedure to measure GMVs in multiple frontal sub-regions and Stroop test and Advanced Test of Attention (ATA) to measure executive functions. We then conducted partial correlation analyses and performed multiple comparisons with different age and sex groups.Results: Overall, 123 participants took part in our study. We found that many regional GMVs in the frontal lobe were negatively correlated with ATA scores in participants in late childhood and positively correlated with ATA scores in participants in adolescence. Only a few correlations of the GMVs with Stroop test scores were significant in both age groups. Although most of our results did not survive false discovery rate (FDR) correction (i.e., FDR &lt;0.2), considering their novelty, we discussed our results based on uncorrected p-values. Our findings indicate that the frontal sub-regions that were involved in attentional networks may significantly improve during late childhood and become stabilized later in adolescence. Moreover, our findings with the Stroop test may also present the possibility of the later maturation of higher-order executive functioning skills.Conclusion: Although our findings were based on uncorrected p-values, the novelty of our findings may provide better insights into elucidating the maturation of the frontal lobe and its relationship with the development of attention networks in late childhood and adolescence.
Radical Knowledge Management: Using Lessons Learned From Artists to Create Sustainable Workplaces
Authors: Barnes Stephanie 
Published: July 2021

This study weaves together research that has been published over the last 20 years and creates a narrative about how we can change our organisations so that they are fit-for-purpose in the 21st century. Using knowledge management as the starting point, the question “How do we move forward in a sustainable, holistic way to create organisations that are healthy and balanced among social, environmental, and financial performance (triple bottom line)?” needs to be answered. This brand new form of knowledge management is called radical knowledge management (radical KM).
Evaluation of Artemia franciscana Cysts to Improve Diets for Mass Rearing Stethorus gilvifrons, a Predator of Tetranychus turkestani
Authors: Ebrahimifar Jafar , Shishehbor Parviz , Rasekh Arash , Hemmati Seyed Ali , Riddick Eric W. 
Published: July 2021

Stethorus gilvifrons is an acarophagous coccinellid distributed in the Mediterranean region and could potentially be mass-reared for the augmentative biological control of Tetranychus turkestani and related species on crop plants. The hypothesis that brine shrimp Artemia franciscana cysts can improve diets for rearing of S. gilvifrons was tested in laboratory experiments. The diet treatments included A. franciscana cysts (D1), A. franciscana cysts plus a vitamin B complex (D2), A. franciscana cysts plus date palm pollen (D3), and A. franciscana cysts plus date palm pollen and Ephestia kuehniella eggs (D4). The results indicated that D1 did not support immature development. D2 supported egg–larval development but not pupal–adult development. Both D3 and D4 supported development to the adult stage and reproduction. However, D4 was the most effective diet, determined by observations of S. gilvifrons oviposition behavior and fecundity. A life table analysis corroborated these results; an intrinsic rate of increase, net and gross reproductive rates, and mean generation time were best for S. gilvifrons fed D4 rather than D3. A mixed diet composed of A. franciscana cysts, date palm pollen, and E. kuehniella eggs can be used to mass rear S. gilvifrons.
Structural and Magnetic Properties of P Microalloyed Fe76Cu0.8Nb2.2B9Si12 Alloys
Authors: Li Jiawei , Ding Qian , Wang Changjiu , He Aina , Dong Yaqiang , Li Deren 
Published: July 2021

The development of Fe-based nanocrystalline alloys with high saturation magnetization (Bs), excellent magnetic softness and good manufacturability is highly desirable. Here, the effect of substituting 1 at% P for B and Si on the thermal stability, microstructure and magnetic properties of Fe76Cu0.8Nb2.2B9Si12 alloy has been studied in detail. It was found that replacing B with P effectively reduces the coercivity (Hc) of the alloy without deteriorating the Bs and permeability (μ). However, replacing Si with P has little effect on the Hc and Bs, yet significantly reduces the μ. The variation in the magnetic properties can be well understood from the evolution of the microstructure and magnetic anisotropy induced by P microalloying. The Fe76Cu0.8Nb2.2B8Si12P1 alloy with a good processing window, a high Bs of 1.41 T, a great μ of 29,000 at 1 kHz and a low Hc of 0.6 A/m is suitable for high-power electronic devices.
TRENDS AND CONCEPTS OF DEVELOPMENT OF COMMUNICATION NETWORKS USING NON-GEOSTATIONARY SATELLITE CONSTELLATIONS
Authors: Чечин Г.В. 
Published: July 2021

Рассматриваются тенденции и концепции построения спутниковых сетей связи на базе негеостационарных орбитальных группировок. Анализ существующих и перспективных сетей основан на большом количестве показателей эффективности, таких как параметры орбитальных группировок, типы антенн, построение системы информационного обмена (протоколы многостанционного доступа и разделения каналов связи, протоколы маршрутизации и передачи информации по каналам связи), а также стоимость.
The trends and concepts of satellite communications networks based on non-geostationary orbital constellations are considered. Analysis of existing and prospective networks is based on a large number of performance indicators, such as parameters of orbital constellations, type of antennas, construction of an information exchange system (protocols for multiple access and separation of communication channels, protocols for routing and transmitting information over communication channels), and cost.
MEASURING ACTIVE FERRITE ANTENNA AFA-1M
Authors: Никитин Ю.А. , Белов С.А. , Чернявский С.Ю. 
Published: July 2021

В статье описана малогабаритная широкополосная активная ферритовая антенна АФА-1М для измерений магнитных полей в диапазоне частот от 10 Гц до 300 кГц. Антенна может быть использована как самостоятельное изделие, так и в составе автоматизированных измерительных комплексов для измерения электромагнитных полей помех, а также для проверки системы защиты информации от непреднамеренной утечки за счет побочных электромагнитных излучений.
The article describes the small-sized broadband active ferrite antenna AFA-1M for measuring magnetic fields in the frequency range from 10 Hz to 300 kHz. The antenna can be used as an independent product and as a part of automated measuring systems for measuring electromagnetic fields of interference, as well as to verify the protection of information from unintentional leakage due to spurious electromagnetic radiation.
MODEL OF ENERGY-EFFICIENT LONG-RANGE MESH NETWORK
Authors: Фам В.Д. , Галлямов Д.А. , Ворожейкина О.И. , Киричек Р.В. 
Published: July 2021

Представлена имитационная модель энергоэффективной ячеистой сети дальнего радиуса действия на базе техно- логии передачи данных LoRa. Модель учитывает различные параметры узлов и каналов связи технологии LoRa. Серия компьютерных экспериментов позволила проанализировать время доставки и коэффициент доставленных пакетов. По результатам моделирования сделаны выводы о возможности использования ячеистой сети для приложений умных устойчивых городов .
The article presents a simulation model of energyefficient long-range mesh network based on LoRa technology. The model takes into account various parameters of nodes and communication channels of LoRa technology. A series of computer experiments allowed analyzing the delivery time and packet delivery ratio. Based on the simulation results, conclusions are drawn about the ability to use the mesh network for the application of Smart Sustainable Cities.
HIGH-PRECISION ALGORITHMS FOR TRACKING IN THE AIR TRAFFIC CONTROL SYSTEM
Authors: Сычев М.И. 
Published: July 2021

Рассматривается задача траекторной обработки информации от радиотехнических средств наблюдения с по- мощью многомодельной фильтрации. Представлен и исследован вариант четырехмодельного алгоритма. Приведены результаты моделирования.
The problem of tracking in the air traffic control system using multi-model filtration is considered. The fourmodel algorithm is presented and investigated. Results of modeling are reported.
TINJAUAN HUKUM ISLAM TERHADAP PEMBAYARAN GANTI RUGI MATERIIL NAFKAH BATIN SUAMI ISTRI YANG TIDAK TERPENUHI
Authors: Halim Halmi Abdul 
Published: July 2021

Pernikahan merupakan ikatan antara seorang laki-laki sebagai suami dan perempuan sebagai istri. Dikarenakan adanya ikatan antara dua orang maka sesuai dengan prinsip perdata akan timbul hak dan kewajiban. Hak dan kewajiban suami istri telah diatur dalam Undang-Undang Perkawinan dan Kompilasi Hukum Islam, yang salah satunya adalah kewajiban suami memberikan nafkah kepada istrinya. Nafkah dapat dibedakan menjadi dua yaitu nafkah lahir dan batin. Terkait pemenuhan nafkah batin yang tidak terpenuhi dijadikan objek untuk diminta pembayaran ganti rugi secara materiil. Hal tersebut belum diatur dalam peraturan perundang-undangan. Lalu setelah ditinjau dari perspektif Hukum Islam hal tersebut pun belum ada aturan yang mengaturnya.
Kata kunci: Kehidupan Batin; Kompensasi Material; Hukum Islam
Sistem Ekonomi Dinasti Abbasiyah ( Tinjauan Historis Pada Masa Pemerintahan Khalifah Al-Mansur 95 H-159 H/714 M- 775 M)
Authors: Sulaiman Sulaiman 
Published: July 2021

Dinasti Abbasiyah yang dipelopori oleh al-Abbas Ibnu Muthalib muncul setelah tergulingnya kekuasaan dinasti Bani Umayyah, kekuasaan dinasti Abbasiyah berlangsung dalam waktu yang amat panjang dimulai 132 (750 M) hingga 656 H (1258 M). dan dinasti inilah Islam mencapai puncak kejayaan dan kecermelangan di segala aspeknya, seperti ilmu pengetahuan, politik, ekonomi dan bidang lainnya. Kejayaan dan kecermelangan yang telah diraih awalnya adalah berkat pembinaan dari daulah Abbasiyah itu sendiri, yaitu Abu Ja’far al-Mansur. Berbagai usaha dilakukan oleh al-Mansur untuk memajukan dan stabilitas Negara, seperti pengangkatan Wazir, membantu protocol Negara yang paling signifikan adalah pembangunan ekonomi. Dalam penelitian ini penulis mencoba memaparkan bagaimana system ekonomi yang diterapkan pada masa khalifah al-Mansur dan Implikasinya terhadap kemajuan ekonomi.

Kata Kunci : Sistem Ekonomi, Implikasi
S
5: The Destruction of a Bright Dwarf Galaxy as Revealed by the Chemistry of the Indus Stellar Stream
Authors: Hansen Terese T. , Ji Alexander P. , Da Costa Gary S. , Li Ting S. , Casey Andrew R. , Pace Andrew B. , Cullinane Lara R. , Erkal Denis , Koposov Sergey E. , Kuehn Kyler , Lewis Geraint F. , Mackey Dougal , Simpson Jeffrey D. , Shipp Nora , Zucker Daniel B. , Bland-Hawthorn Joss ,   ( S 5 Collaboration)
Published: July 2021

Abstract
The recently discovered Indus stellar stream exhibits a diverse chemical signature compared to what is found for most other streams due to the abundances of two outlier stars, Indus_0 and Indus_13. Indus_13 exhibits an extreme enhancement in rapid neutron-capture (r-)process elements with [Eu/Fe] = + 1.81. It thus provides direct evidence of the accreted nature of r-process-enhanced stars. In this paper we present a detailed chemical analysis of the neutron-capture elements in Indus_13, revealing the star to be slightly actinide poor. The other outlier, Indus_0, displays a globular cluster-like signature with high N, Na, and Al abundances, while the rest of the Indus stars show abundances compatible with a dwarf galaxy origin. Hence, Indus_0 provides the first chemical evidence of a fully disrupted dwarf containing a globular cluster. We use the chemical signature of the Indus stars to discuss the nature of the stream progenitor which was likely a chemically evolved system, with a mass somewhere in the range from Ursa Minor to Fornax.
AGILE Observations of Fast Radio Bursts
Authors: Verrecchia F. , Casentini C. , Tavani M. , Ursi A. , Mereghetti S. , Pilia M. , Cardillo M. , Addis A. , Barbiellini G. , Baroncelli L. , Bulgarelli A. , Cattaneo P. W. , Chen A. , Costa E. , Del Monte E. , Di Piano A. , Ferrari A. , Fioretti V. , Longo F. , Lucarelli F. , Parmiggiani N. , Piano G. , Pittori C. , Rappoldi A. , Vercellone S. 
Published: July 2021

Abstract
We report on a systematic search for hard X-ray and γ-ray emission in coincidence with fast radio bursts (FRBs) observed by the AGILE satellite. We used 13 yr of AGILE archival data searching for time coincidences between exposed FRBs and events detectable by the MCAL (0.4–100 MeV) and GRID (50 MeV–30 GeV) detectors at timescales ranging from milliseconds to days/weeks. The current AGILE sky coverage allowed us to extend the search for high-energy emission preceding and following the FRB occurrence. We considered all FRB sources currently included in catalogs and identified a subsample (15 events) for which a good AGILE exposure with either MCAL or GRID was obtained. In this paper we focus on nonrepeating FRBs, compared to a few nearby repeating sources. We did not detect significant MeV or GeV emission from any event. Our hard X-ray upper limits (ULs) in the MeV energy range were obtained for timescales from submillisecond to seconds, and in the GeV range from minutes to weeks around event times. We focus on a subset of five nonrepeating and two repeating FRB sources whose distances are most likely smaller than that of 180916.J0158+65 (150 Mpc). For these sources, our MeV ULs translate into ULs on the isotropically emitted energy of about 3 × 1046 erg, comparable to that observed in the 2004 giant flare from the Galactic magnetar SGR 1806–20. On average, these nearby FRBs emit radio pulses of energies significantly larger than the recently detected SGR 1935+2154 and are not yet associated with intense MeV flaring.
Fast Dissipation of Colliding Alfvén Waves in a Magnetically Dominated Plasma
Authors: Li Xinyu , Beloborodov Andrei M. , Sironi Lorenzo 
Published: July 2021

Abstract
Magnetic energy around compact objects often dominates over plasma rest mass, and its dissipation can power the object’s luminosity. We describe a dissipation mechanism that works faster than magnetic reconnection. The mechanism involves two strong Alfvén waves with anti-aligned magnetic fields
B

1 and
B

2 that propagate in opposite directions along the background magnetic field
B

0 and collide. The collision forms a thin current sheet perpendicular to
B

0, which absorbs the incoming waves. The current sheet is sustained by an electric field
E
breaking the magnetohydrodynamic condition E < B and accelerating particles to high energies. We demonstrate this mechanism with kinetic plasma simulations using a simple setup of two symmetric plane waves with amplitude A = B
1/B
0 = B
2/B
0 propagating in a uniform
B

0. The mechanism is activated when A > 1/2. It dissipates a large fraction of the wave energy, f = (2A − 1)/A
2, reaching 100% when A = 1. The plane geometry allows one to see the dissipation process in a one-dimensional simulation. We also perform two-dimensional simulations, enabling spontaneous breaking of the plane symmetry by the tearing instability of the current sheet. At moderate A of main interest, the tearing instability is suppressed. Dissipation transitions to normal, slower, magnetic reconnection at A ≫ 1. The fast dissipation described in this paper may occur in various objects with perturbed magnetic fields, including magnetars, jets from accreting black holes, and pulsar wind nebulae.
Asteroseismic Inference of the Central Structure in a Subgiant Star
Authors: Bellinger Earl P. , Basu Sarbani , Hekker Saskia , Christensen-Dalsgaard Jørgen , Ball Warrick H. 
Published: July 2021

Abstract
Asteroseismic measurements enable inferences of the underlying stellar structure, such as the density and the speed of sound at various points within the interior of the star. This provides an opportunity to test stellar evolution theory by assessing whether the predicted structure of a star agrees with the measured structure. Thus far, this kind of inverse analysis has only been applied to the Sun and three solar-like main-sequence stars. Here we extend the technique to stars on the subgiant branch, and apply it to one of the best-characterized subgiants of the Kepler mission, HR 7322. The observation of mixed oscillation modes in this star facilitates inferences of the conditions of its inert helium core, nuclear-burning hydrogen shell, and the deeper parts of its radiative envelope. We find that despite significant differences in the mode frequencies, the structure near to the center of this star does not differ significantly from the predicted structure.
Multi-scale Radio and X-Ray Structure of the High-redshift Quasar PMN J0909+0354
Authors: Perger Krisztina , Frey Sándor , Schwartz Daniel A. , Gabányi Krisztina É. , Gurvits Leonid I. , Paragi Zsolt 
Published: July 2021

Abstract
The high-redshift quasar PMN J0909+0354 (z = 3.288) is known to have a parsec-scale compact jet structure, based on global 5 GHz very long baseline interferometry (VLBI) observations performed in 1992. Its kiloparsec-scale structure was studied with the Karl G. Jansky Very Large Array (VLA) in the radio and the Chandra space telescope in X-rays. Apart from the north-northwestern jet component seen in both the VLA and Chandra images at 2.″3 separation from the core, there is another X-ray feature at 6.″48 in the northeastern (NE) direction. To uncover more details and possible structural changes in the inner jet, we conducted new observations at 5 GHz using the European VLBI Network in 2019. These data confirm the northward direction of the one-sided inner jet already suspected from the 1992 observations. A compact core and multiple jet components were identified that can be traced up to ∼0.25 kpc projected distance toward the north, where the structure becomes more and more diffuse. A comparison with arcsecond-resolution imaging with the VLA shows that the radio jet bends by ∼30° between the two scales. The direction of the parsec-scale jet as well as the faint optical counterpart found for the newly detected X-ray point source (NE) favors the nature of the latter as being a background or foreground object in the field of view. However, the extended (∼160 kpc) emission around the positions of the quasar core and NE detected by the Wide-field Infrared Survey Explorer in the mid-infrared might suggest a physical interaction of the two objects.