bluuebunny/crossref_metadata_2025 huggingface dataset:
Vanillin/silica microencapsulation for wood preservation
Authors: Yan Li , Yan Zeyao , Chen Jiang , Chen Zhangjing , Lei Yafang
Published: May 2023

Vanillin is an antifungal and environmentally friendly compound. In this study, vanillin and silica microcapsules (VSM) were microencapsulated using the sol-gel method and then impregnated into wood. Scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDXA) and transmission electron microscopy (TEM) were used to characterize the morphological structure and distribution of VSM in wood. Fourier transform infrared spectroscopy (FTIR) was used to study the intermolecular interactions between VSM and wood. The antifungal performance of the VSM-treated wood was evaluated. The study revealed that VSM had good sustained-release performance and decay resistance. Mass losses of VSM-treated wood after leaching and exposure to Trametes versicolor (L.) Quel. and Gloephyllum trabeum (Pers.) Murrill decreased from mass losses of 20.8 % and 15.9 % of the control group to 9.2 % and 6.4 %, respectively. VSM treatment disrupted the mycelium of T. versicolor and G. trabeum, inhibited their respiratory metabolism, and the ligninase-laccase enzyme activity of T. versicolor. Meanwhile, MOR and MOE of VSM-treated wood were 96.7 MPa and 12.3 GPa which were 28.8 % and 11.5 % higher than the control group, respectively.
Predictors of sexual and reproductive health self-care based on demographic factors in adolescent girls
Authors: Sadeghi Maryam , Jamshidimanesh Mansoureh , Alimoradi Zainab
Published: May 2023

Objectives

Global access to sexual and reproductive health is an essential human right, especially to adolescent girls. For improvement sexual and reproductive self-care needs to determine the related factors on utilization and acceptance by adolescents. Therefore, the aim of this study was to examine the SRH self-care and its predictors among adolescent girls in Neyshabur city at Northeast of Iran.

Methods

The present study was a cross-sectional correlational study performed on 265 girl students from 15 girls’ high schools in Neyshabour, in Razavi Khorasan province, Northeastern Iran. The sampling method was multistage probability sampling. Data were collected using demographic information and female adolescents’ sexual reproductive self-care scale. Data were analyzed using descriptive, frequency, percentage, mean, standard deviation, and ANOVA, Pearson correlation coefficient, and multiple linear regression model. The significant level was p<0.05 using SPSS16.

Results

The results of the present study showed that the mean score of the sexual reproductive health self-care was 61.23 of 100 ± 10.5, it had a significantly relationship with fathers education high school [B=−7.241 CI: (−11.088 to −3.393)], diploma [B=−7.221 CI: −10.707 to −3.735] than academic. The rank of children birth in the family first [B=6.012 CI: (0.931–11.092)] second [B=4.436 CI: (1.437–8.309)] than third and above. Economic status of household Excellent [B=3.159 CI: (2.193–8.511)], Favorable [B=5.866 CI: (1.355–10.378)], relatively favorable [B=2.705 CI: (1.802–7.213)] than poor level economic.

Conclusions

sexual and reproductive health is associated to father’s education, the rank of children birth in the family, and economic status. So these variables will help to strategies and progress educational programs.
Role of interfacial electric field on thermal conductivity of In
x
Al1−x
N/GaN superlattice (x = 0.17)
Authors: Mehra Jay Kumar , Sahoo Bijay Kumar
Published: May 2023

In this paper, we report the role of the interfacial polarization electrical field in thermal conductivity of In
x
Al1−x
N/GaN superlattice. Thermal conductivity reduction is one recent effort to improve thermoelectric device efficiency because a small reduction in thermal conductivity can enhance the figure of merit significantly. Quantum size effect and thermal boundary resistance are responsible for this reduction. The theoretical results demonstrate that the interfacial polarization electric field modifies acoustic phonon properties through elastic moduli and phonon group velocity as a result of the inverse piezoelectric effect. This enhances phonon scattering and thermal boundary resistance. Consequently, the thermal conductivity of the superlattice is reduced. Room temperature thermal conductivity is found to be 2.94 (3.35) W m−1 K−1 for In
x
Al1−x
N/GaN superlattice (x = 0.17) in the presence (absence) of an electric field.
On the identification of Lamé parameters in linear isotropic elasticity via a weighted self-guided TV-regularization method
Authors: Markaki Vanessa , Kourounis Drosos , Charalambopoulos Antonios
Published: May 2023

Recently in [V. Markaki, D. Kourounis and A. Charalambopoulos,
A dual self-monitored reconstruction scheme on the

TV

\mathrm{TV}

-regularized inverse conductivity problem,
IMA J. Appl. Math. 86 2021, 3, 604–630], a novel reconstruction scheme has been developed for the solution of the inclusion problem in the inverse conductivity problem on the basis of a weighted self-guided regularization process generalizing the total variation approach. The present work extends this concept by implementing and investigating its applicability in the two-dimensional elasticity setting. To this end, we employ the framework of the reconstruction of linear and isotropic elastic structures described by their Lamé parameters. Numerical examples of increasingly challenging geometric complexities illustrate the enhanced accuracy and efficiency of the method.
The crystal structure of catena-poly[5-aminonicotinic acid-k1
N-m2-bromido-copper(I)], Cu(C6N2H6O2)Br
Authors: Chen Nuo , Zheng Qing-Hua , Zhao Wang , Zhou Wei-Wei
Published: May 2023

[Cu(C6N2H6O2)Br]
n
, monoclinic, P21/c (no. 14), a = 16.536(6) Å, b = 3.8463(14) Å, c = 14.403(6) Å, β = 

115.009

(
5
)

∘

$115.009{(5)}^{\circ }$

, V = 830.2(6) Å3, Z = 4, Rgt
(F) = 0.0441, wRref
(F
2) = 0.1054, T = 296 K.
Nihilism Lost and Found: Brassier, Jonas, and Nishitani on Embracing and/or Overcoming Nihilism
Authors: Lehner Andrea , Restrepo Felipe Cuervo
Published: May 2023

This essay confronts Ray Brassier’s vindication of nihilism with other two important but frequently underexamined philosophical attempts to overcome nihilism: Hans Jonas’ and Keiji Nishitani’s. By putting these different takes on nihilism into dialogue, it explores some blind spots in Brassier’s position, as well as some of the practical consequences, for our current planetary situation, of undertaking a radical divorce between the normative and the natural that results from his radical nihilism. The article opts for a more moderate acceptance and eventual self-overcoming of nihilism, according to which, even if natural entities are indifferent to human reasons and meanings, this does not entail that nature is bereft of a human-independent normative dimension. In other words, the essay argues that care must be taken not to confuse criticisms of an anthropocentric conception of reasons and meanings with the belief that meaning is completely absent from the natural world. Thus, the central contention of the article is that, given our current climate and ecological catastrophe, one of the most pressing tasks of contemporary philosophy is to understand normativity in non-anthropocentric ways, so that humans are no longer considered as the only entities that respond to normativity. Such an attitude conceives humans as estranged normative creatures amidst a meaningless, indifferent natural world, toward which they would have no ethical responsibilities. The essay finishes by suggesting ways in which to develop an account that does not fall into this ethical vacuum.
Process intensification using immobilized enzymes
Authors: Bolat Sera , Greifenstein Raphael , Franzreb Matthias , Holtmann Dirk
Published: May 2023

The application potential of enzymes is undoubtedly very high. However, despite the very large number of different enzymes and enzyme activities, the number of industrial enzyme processes is comparatively small. The particular challenge often lies in transferring promising laboratory processes to an industrial scale. Here, the required performance parameters, such as enzyme stability or productivity, must be achieved. On the one hand, this can be achieved by improving the enzymes. On the other hand, the key performance indicators can often only be achieved by using technical systems in the sense of process intensification. In enzymatic processes, immobilization of enzymes is often the means of choice to enable technical processes. The aim of this article is to outline the most important enzyme immobilization methods and to summarize the most important performance indicators of immobilized enzymes. Finally, the different immobilization methods and performance indicators are compared in a case study with unspecific peroxygenase.
Closure to “Third Discussion of ‘Determining Soil Plasticity Utilizing Manafi Method and Apparatus,’ by M. S. G. Manafi, A. Deng, A. Taheri, M. B. Jaksa, and H. B. Nagaraj”
Authors: Manafi Masoud S. G. , Deng An , Jaksa Mark B.
Published: May 2023

This article concludes the discussion on Geotechnical Testing Journal’s GTJ-2022-0273, with two objectives: (1) elaborating on the usage of the term “workability” for quantifying soils’ consistency property, and (2) evaluating the efficacy of the proposed method and apparatus for soil plasticity determination.
Investigation of Measurement Capability for Charpy V-Notch Specimens Using Typical Measurement Practices
Authors: Conley David A. , Pline Timothy R.
Published: May 2023

This paper investigates the capability of laboratories and industrial entities to measure the critical dimensions of the Charpy V-notch specimen, as defined in ASTM E23, Standard Test Methods for Notched Bar Impact Testing of Metallic Materials. Notched impact testing is commonly used to evaluate the impact strength and behavior of metals under impact loads at various temperatures. The ASTM Subcommittee E28.07 on Impact Testing became concerned that measuring the dimensions of the V-notch, which is considered critical to the test results, may be less achievable than is generally assumed. An interlaboratory study (ILS) was conducted with ASTM member entities to evaluate the ability of laboratories with various measurement techniques to accurately measure the critical dimensions. This paper evaluates the results of the ILS, which found that the community of laboratories surveyed could not measure all of the critical dimensions with sufficient accuracy to properly reject unacceptable notches. Conclusions and recommendations are provided to improve laboratory performance and provide guidance that may be issued in a revision to ASTM E23. The authors would like to thank the National Institute of Standards and Technology for providing statistical evaluations of the sample data and for the laboratories who participated in the ILS.
Very High Cycle Fatigue Data Acquisition Using High-Accuracy Ultrasonic Fatigue Testing Equipment
Authors: Schönbauer Bernd M. , Fitzka Michael , Jaskari Matias , Järvenpää Antti , Mayer Herwig
Published: May 2023

Fatigue testing at ultrasonic frequency is a powerful method for rapid generation of high and very high cycle fatigue data. High accuracy of cyclic loading is the basis for reproducible test results, which can be obtained with closed-loop control of vibration amplitude and resonance frequency. Self-heating of test specimens can be suppressed by intermittent (pulse-pause) loading. In the present work, the high-accuracy ultrasonic fatigue testing equipment developed at the University of Natural Resources and Life Science, Vienna (BOKU) is described, and systematic investigations are presented that demonstrate the effects of cycling frequency, specimen size, and intermittent loading. Data obtained with additively manufactured (AMed) austenitic stainless steel 316L at 19 kHz are compared with electromagnetic resonation test results measured at 90 Hz. No influence of cycling frequency on fatigue lifetimes and fatigue limit was found when specimens of comparable size were used for tests at 19 kHz and 90 Hz. In contrast, the use of as-built specimens with smaller testing volume resulted in an increase in cyclic strength, demonstrating a size effect on fatigue properties. Polishing the surfaces of AMed specimens increased the fatigue limit by a factor of two. Furthermore, ultrasonic fatigue tests with intermittent loading and four different pulse lengths as well as continuous cycling were performed. The tests were conducted with wrought aluminum alloy 7075-T651 and with specimens containing small artificial surface defects. Similar lifetimes were measured in all testing series. Moreover, the same fatigue limit is found for all pulse lengths and for continuous cycling. This demonstrates that pulsed loading is a most suitable method to avoid specimen heating at ultrasonic frequency and that there is no influence on measured fatigue properties if ultrasonic loading is appropriately controlled. Measurement artifacts could be identified and avoided by measuring and recording all load amplitudes during ultrasonic fatigue tests.
Complaints of Low Back Pain in Tailors
Authors: Siregar Santy Deasy , Manalu Putranto , Ginting Rapael , Hulu Victor Trismanjaya , Siallagan Jeremia Chandra Partogi
Published: May 2023

Low back pain (LBP) is one of the musculoskeletal disorders as a result of incorrect ergonomics. The impact caused by low back pain is bad posture, stiffness, pinched nerve, and muscle weakness. This study aims to determine the relationship between ages, years of service, length of sitting, work posture, and the chair’s ergonomics with complaints of low back pain in tailors at Pasar Petisah, Kota Medan, with 35 workers based on inclusion and exclusion criteria. The research tools are interviews, observations, and filling out questionnaires. This sampling technique is used purposive sampling methods. Data were analyzed using the STATCAL application with a 5% chi-square test. Based on the result, we concluded that there is a long relationship between ages (p=0,02), years of service (p=0,04), length of sitting (p=0,01), and work posture (p=0,03) with the occurrence of low back pain tailors. Tailors in the Petisah Market in Medan City are at risk for complaints of low back pain based on age, long years of service, a risky length of sitting, and a risky work posture. If the workers ignore low back pain, the impact is the emergence of serious problems such as stiffness in the spine, fractures, pinched nerves, and can even cause death.
Tuberculosis Research Trends in Indonesian Health Scientific Journals: From Research Design to Data Analysis
Authors: Ratnasari Nita Yunianti , Handayani Sri
Published: May 2023

This study aims to analyze various tuberculosis articles that have been published in health scientific journals in Indonesia. These involve the frequency of the number of publications per year, type of research, research subjects, and topics that are often raised by the researchers in their research. This research method used the principle of content analysis which focused on findings from various studies on tuberculosis that have been published in scientific journals in Indonesia. Data were collected from content analysis in journals related to tuberculosis. The results of the journal’s content analysis published in SINTA-1 with the tuberculosis subject area in the last ten years as a whole show the progress from year to year. There are four things that become the subjects of study analysis, namely the number of publications per year (the publication of tuberculosis articles in the SINTA 1 journal decreased in 2019 because of the emergence of the Coronavirus in that year and began to plague in the following years); research type (in this study the results obtained that of the 27 articles analyzed, 23 of them were quantitative types). Subject (tuberculosis patients sampled in this study included the intensive phase and the advanced phase patients) and research topic (topics around knowledge are still the variables that researchers are most interested in).
Nutrition Intake, Physical Activity, and Sleep Quality in the Month of Fast During Covid-19 Pandemic
Authors: Cahyati Widya Hary , Putriningtyas Natalia Desy , Rengga Wara Dyah Pita , Suharyo Suharyo
Published: May 2023

Central Java is one of the provinces with the highest number of positive Covid-19 cases in Indonesia, with 46,903 positive infected cases, with a death rate of 2,110 people (4.49%).  During the COVID-19 pandemic, community activities decrease, especially during the fasting month.  Their diet has also changed.  This study aimed to describe and analyse the relationship between nutritional intake and physical activity on people's sleep quality during the fasting month during the COVID-19 pandemic.  The benefit of this research is to provide information on factors related to people's sleep quality, so as to improve public health. The novelty of this research is on aspects of physical activity, and people's sleep quality during the fasting month during the covid-19 pandemic. This research method is observational using a cross-sectional approach. The research was conducted during the fasting month (Ramadan 2021) to find out the nutritional intake, physical activity, and quality of people's sleep while fasting amid the COVID-19 pandemic. This study was attended by 520 respondents who were willing to fill out a questionnaire distributed via Googleform. Respondents in this study were limited to people who live in Central Java. The selection of respondents using the cluster sampling technique and then the snowball method.  The questionnaires were the Pittsburgh Sleep Quality Index (PSQI), IPAQ and DQI.  The results showed no relationship between physical activity and slept quality during the fasting month (p : 0.402).  There is a relationship between food consumption, sleep quality (p: 0.0001), and physical activity (0.007) during the fasting month.
Evaluation of hippocampal arylalkylamine N-acetyltransferase activity in amyloid-β neurotoxicity
Authors: Mohammadi Shima , Zahmatkesh Maryam , Asgari Yazdan , Aminyavari Samaneh , Hassanzadeh Gholamreza
Published: May 2023

Arylalkylamine N-acetyltransferase (AANAT), a rate-limiting enzyme in melatonin synthesis, is present in extra-pineal tissues such as the hippocampus. The hippocampal AANAT activity in amyloid β (Aβ) neurotoxicity has not been exactly defined. Adult male rats received bilateral intra-CA1 Aβ administration. The hippocampus tissue sampling was performed 2, 12, and 24 h after Aβ injection in the morning and night. The inflammation was monitored using tumor necrosis factor-alpha (TNF-α) immunohistochemistry. The AANAT enzyme activity and melatonin levels were measured using western blotting and high-performance liquid chromatography. The sampling in the morning vs night showed no significant differences in the AANAT activity. The Aβ increased the area of TNF-α positive staining 24 h after injection, which indicated the induction of an inflammatory context. It was accompanied by a significant reduction in AANAT activity and hippocampal melatonin. A reverse correlation was also detected between TNF-α and AANAT activity in the 24-h group. The TNF-α positive area was significantly increased in the 24-h group as compared to the 12-h group. Data showed that inflammatory processes began 12 h after the Aβ injection and augmented 24 h later. In the second experiment, the impact of Aβ injection on hippocampus AANAT activity was examined in the pinealectomized (PIN×) animals. The PIN× per se did not affect the hippocampal AANAT and melatonin levels. However, there was a significant decrease in hippocampal melatonin in the PIN×+Aβ group. The findings suggest the accompanying hippocampal inflammatory context and AANAT enzyme activity reduction in early stages after Aβ administration. Understanding the underlying mechanism of the decreased AANAT activity may suggest new treatment strategies.
Los orígenes de una ciudad olímpica: Barcelona y el asociacionismo deportivo decimonónico ante la gestación de los primeros Juegos Olímpicos
Authors: TORREBADELLA I FLIX Xavier
Published: May 2023

A mediados del siglo XIX Barcelona emprendió un acelerado proceso de expansión industrial y empresarial que la consolidó como la ciudad más próspera de España. Esta posición provocó la presencia de una elevada colonia extranjera europea, que asimismo participó del asociacionismo recreativo del llamado sport. Los vínculos entre la elitista colonia extranjera y la emergente burguesía de Barcelona facilitaron la puesta en marcha de un fenómeno asociativo de signo liberal sin precedentes que tomó su máxima expresión en las prácticas gimnástico-deportivas. Esta consideración representó a finales del siglo XIX, coincidiendo con la gestación de los Juegos Olímpicos modernos, la imagen que sustentó a Barcelona como la precursora y primer referente del incipiente asociacionismo deportivo en España. Palabras clave: Barcelona, historia del deporte, asociacionismo deportivo, Juegos Olímpicos, siglo XIX. THE ORIGINS OF AN OLYMPIC CITY: BARCELONA AND THE 19th CENTURY SPORTING ASSOCIATIONS TO THE GESTATION OF THE FIRST OLYMPIC GAMES In the mid-19th century Barcelona started an accelerated process of industrial and business expansion which established it as the most prosperous city of Spain. This position led to the presence of a high European foreign colony, which also participated in recreational associations of the so-called sport. The links between the elitist foreign colony and the emerging bourgeoisie of Barcelona provided implementation underway an associative phenomenon of liberal sign unprecedented that took its maximum expression in gymnastics and sport activities. This consideration represented at the end of the 19th century, coinciding with the emergence of the modern Olympic Games, the image which propped up Barcelona as the precursor and first reference for budding sports associations in Spain.Keywords: Barcelona, history of sports, sports associations, Olympic Games, 19th century
Deporte para la paz y el desarrollo: construyendo un mundo pacífico y mejor a través del deporte y el ideal olímpico
Authors: NACIONES UNIDAS Asamblea de
Published: May 2023

La resolución 66/5 de Octubre de 2011, decidió incluir dentro de la agenda provisional de su sexagésima octava sesión el tema titulado “Construyendo un mundo pacífico y mejor a través del deporte y el ideal olímpico”, y recordando también su decisión de examinar el tema cada dos años, previamente a los Juegos Olímpicos de verano e invierno.Palabras clave: Deporte, paz, Naciones Unidas, Comité Olímpico Internacional. SPORT FORPEACE AND DEVELOPMENT: BUILDING A PEACEFUL AND BETTER WORLD THROUGH SPORT AND THE OLYMPIC IDEAL The resolution 66/5 of 17 October 2011, in which it decided to include in the provisional agenda of its sixty-eighth session the sub-item entitled “Building a peaceful and better world through sport and the Olympic ideal”, and recalling also its prior decision to consider the sub-item every two years, in advance of the Summer and Winter Olympic Games.Key words: Sport, Peace, United Nations, International Olympic Committee
Application of OSL strips in CT dosimetry according to the AAPM methodology
Authors: Terini Ricardo Andrade , Oliveira Johnatan Dias , Yoshimura Elisabeth Mateus
Published: May 2023

Computed tomography (CT) images contribute to high-quality medical diagnosis, but radiation dose can be quite high, requiring accurate assessment. CT dose index (CTDI) was developed for dosimetric purposes, but for scanners operated exclusively in axial mode. Nowadays, CTDI underestimate patient dose in helical CT exams. AAPM report TG111 (2010) suggested a new metric in which the patient's radiation dose is obtained from dose profiles constructed from several measurements made with a small ionization chamber. It is also possible to obtain dose profiles using properly calibrated OSL (optically stimulated luminescence) strips. The main objective of the present work is to contribute to optimizing CT dosimetry, comparing dose profiles obtained with OSL strips with measurements obtained by other authors. In this work, a “pencil” ionization chamber and 20 cm x 0.3 cm OSL strips were X-ray-irradiated, in air and in the holes of two cylindrical CT phantoms, using 100, 120, 140 kV peak voltages, both in lab and in a clinical CT scanner. Irradiated strips were read using an OSL reader built in the GDRFM. OSL profiles were calibrated against ionization chamber. From them, CTDIw and CTDIvol values were determined, differing approximately 3.9% from those of the CT scanner. From the profiles, also the planar equilibrium dose Deq,p (TG111) was evaluated in some CT protocols; Deq,p exceeded the CTDI values from the CT scanner in every case. E.g.: The percentage difference between Deq,p and CTDIvol for the head phantom ranged between 33-25%. Thus, in some cases, it could be advantageous to use calibrated OSL dosimeters instead of ionization chambers to obtain the profiles, saving time, because it is possible to obtain five OSL profiles from a single phantom irradiation.
AAP Pediatric Coding Newsletter
™ June 2023 Quiz (Online Exclusive)
Authors:   American Academy of Pediatrics
Published: May 2023

Quiz for AAPC Continuing Education Units
Mechanisms of Coronary Artery Spasm
Authors: Nishimiya Kensuke , Takahashi Jun , Oyama Kazuma , Matsumoto Yasuharu , Yasuda Satoshi , Shimokawa Hiroaki
Published: May 2023

Recent clinical trials have highlighted that percutaneous coronary intervention in patients with stable angina provides limited additional benefits on top of optimal medical therapy. This has led to much more attention being paid to coronary vasomotion abnormalities regardless of obstructive or non-obstructive arterial segments. Coronary vasomotion is regulated by multiple mechanisms that include the endothelium, vascular smooth muscle cells (VSMCs), myocardial metabolic demand, autonomic nervous system and inflammation. Over the years, several animal models have been developed to explore the central mechanism of coronary artery spasm. This review summarises the landmark studies on the mechanisms of coronary vasospasm demonstrating the central role of Rho-kinase as a molecular switch of VSMC hypercontraction and the important role of coronary adventitial inflammation for Rho-kinase upregulation in VSMCs.
Hypoglycemic and Antihyperlipidemic effects of Syzygium cumini (Lamarck) Skeels and Syzygium paniculatum (Gaertn.)
Authors: Pereira Renata Junqueira , Cardoso Maria das Graças , Andrade Milene Aparecida , Pereira Rodrigo Junqueira
Published: May 2023

Introduction: there is a recent increase in interest in the use of medicinal and phytotherapeutic plants. Objective: to verify the effect of ethanolic extracts from different parts of fruits of two species of the genus Syzygium, on glucose and lipid levels in the blood, using animal models. Results: the bark extract of the seeds of S. cumini (Lamarck) Skeels proved to be effective in reducing blood glucose levels. This same extract was also effective in lowering blood cholesterol levels. The extract from the seed nuclei of S. cumini (Lamarck) Skeels and S. paniculatum(Gaertn) were effective in reducing blood triglyceride levels. Extracts from all parts of the fruits of S. cumini (Lamarck) Skeels and of the seed nuclei of S. panic-ulatum (Gaertn) prevented weight gain in the animals. Conclusion: in general, the seed extract of both species showed a direct influence on the parameters and characteristics under study.
Nos cruzamentos das avenidas identitárias há anúncios?
Authors: Moreno Fernandes Pablo
Published: May 2023

Apresentamos uma análise das representações da negritude na publicidade a partir da combinação das teorias interseccional (CRENSHAW, 2002) e semiótica (PEIRCE, 1931). Analisamos peças de comunicação veiculadas em anúncios de revista e no Instagram da marca Vivo em 2018, avaliando os cruzamentos das avenidas identitárias. Os resultados apontam que a representação da negritude, associada a matrizes de gênero e classe, ainda é formada por interpretantes baseados no mito de democracia racial (GONZALEZ, 1984), ainda pouco contraintuitivas (LEITE, 2014) e com representações limitadas sobre a negritude, presas a imagens de controle (COLLINS, 2019) em um regime racializado de representação (HALL, 2016).
Electrochemical and electrophysiological considerations for clinical high channel count neural interfaces
Authors: Vatsyayan Ritwik , Lee Jihwan , Bourhis Andrew M. , Tchoe Youngbin , Cleary Daniel R. , Tonsfeldt Karen J. , Lee Keundong , Montgomery-Walsh Rhea , Paulk Angelique C. , U Hoi Sang , Cash Sydney S. , Dayeh Shadi A.
Published: May 2023

Electrophysiological recording and stimulation are the gold standard for functional mapping during surgical and therapeutic interventions as well as capturing cellular activity in the intact human brain. A critical component probing human brain activity is the interface material at the electrode contact that electrochemically transduces brain signals to and from free charge carriers in the measurement system. Here, we summarize state-of-the-art electrode array systems in the context of translation for use in recording and stimulating human brain activity. We leverage parametric studies with multiple electrode materials to shed light on the varied levels of suitability to enable high signal-to-noise electrophysiological recordings as well as safe electrophysiological stimulation delivery. We discuss the effects of electrode scaling for recording and stimulation in pursuit of high spatial resolution, channel count electrode interfaces, delineating the electrode–tissue circuit components that dictate the electrode performance. Finally, we summarize recent efforts in the connectorization and packaging for high channel count electrode arrays and provide a brief account of efforts toward wireless neuronal monitoring systems.

Graphical Abstract
A computational study of the thermodynamic and magnetic properties of Co-alloyed MnPt
Authors: Diale R. G. , Ngoepe P. E. , Moema J. S. , Phasha M. J. , Moller H. , Chauke H. R.
Published: May 2023

Magnetic functional materials remain an area of research interest for applications in electronic devices. Among these materials, Mn50Pt50 alloy has received a great deal of attention in practical potential applications such as spintronics due to its high-thermal and magnetic stability. It was reported previously that L10 Mn50Pt50 alloy shows ferromagnetic ordering at room temperature. In this study, the effect of the partial substitution of Pt with Co was investigated using density functional theory (DFT) approach. The thermodynamic, magnetic and mechanical properties were determined to check the stability of Mn50Pt50-xCox alloys. The results showed that the L10 phase has the lowest heat of formation when the c/a ratio is 1.10 for 6.25 at.% Co. Overall magnetic moments improve with an increase in Co compositions when the c/a ratio is 1.10. The obtained results reveal that Mn50Pt50-xCox alloys exhibit attractive magnetic and mechanical properties for future magnets in spintronics applications.

Graphical Abstract
STRATEGI DAN KEBIJAKAN PENGELOLAAN USAHA BUDIDAYA LOBSTER MUTIARA (P. ornatus) BERKELANJUTAN DI PROVINSI SULAWESI SELATAN
Authors: Haj Muhammad Hairul , Zulbainarni Nimmi , Novindra Novindra
Published: May 2023

Provinsi Sulawesi Selatan memiliki potensi sumberdaya perikanan budidaya salah satunya lobster. Meningkatnya permintaan pasar dan harga lobster dunia mengakibatkan ancaman bagi keberlanjutan sumberdaya karena kegiatan penangkapan bibit yang dilakukan secara terus menerus. Banyaknya permasalahan keberlanjutan dalam sektor perikanan budidaya sehingga berdampak terhadap pembuat kebijakan. Penelitian ini dilakukan untuk menganalisis kendala serta alternatif strategi kebijakan pengelolaan usaha budidaya lobster secara berkelanjutan. Metode yang digunakan dalam penelitian ini yaitu melibatkan beberapa ahli dengan menggunakan analisis ISM dan AHP. Penentuan jumlah sampel menggunakan stratified sampling. Hasil penelitian menunjukkan bahwa sub elemen yang menjadi elemen kunci adalah teknologi penanganan penyakit (tujuan), kurangnya penyuluh perikanan, input bibit yang terbatas dan keterbatasan teknologi (kendala), Kementrian Kelautan dan Perikanan (KKP), Balai Budidaya Air Laut (BBAL) dan Universitas (lembaga terkait). Strategi alternatif kebijakan yang menjadi prioritas yaitu metode sistem budidaya Karamba Jaring Apung (KJA). Rekomendasi yang disarankan adalah terciptanya kolaborasi antar lembaga dalam menciptakan teknologi pembenihan lobster untuk mengatasi permasalahan input bibit.South Sulawesi Province has the potential for aquaculture resources, one of which is lobster. The increasing market demand and world lobster prices result in a threat to the sustainability of resources due to catching activities continuously. The number of sustainability problems in the aquaculture sector it has an impact on policymakers. This study was conducted to analyze the constraints and alternative strategies for sustainably managing lobster aquaculture. The method used in this research is to involve several experts using ISM and AHP analysis. Determination of the number of samples using stratified sampling. The results showed that the sub-elements that became the elements were disease handling technology (goal), lack of fishery extension, limited seed input, and technological limitations (obstacles and KKP, BBAL, and University (related institutions). An alternative policy strategy that becomes a priority is the cultivation system of floating cage net (KJA). The recommended recommendation is the creation of a collaboration between institutions in creating lobster hatchery technology to overcome the problem of seed input.
Corrigendum
Authors: Hallin Nathalie
Published: May 2023

Hallin, N., Västfjäll, D., & Andersson, G. (2020). Bias against atheists and religious persons in Sweden. Journal for the Cognitive Science of Religion 5(2), 205–223. https://doi.org/10.1558/jcsr.41002. The article erroneously states on page 215: “Swedish participants made significantly fewer conjunction errors than Finnish participants when the target was atheist.” The correct text should read: “Swedish participants made significantly more conjunction errors than Finnish participants when the target was atheist."
PROGRAMMABLE BEHAVIOR OF THE METAMATERIAL BY KINDS OF UNIT CELLS CONNECTION
Authors: Akhmetshin L. R. , Smolin I. Yu.
Published: May 2023

The paper is devoted to the numerical analysis of uniaxial loading of a sample of the mechanical metamaterial. The structure of the mechanical metamaterial is constructed of a ring and four ligaments, which make up a tetrachiral structure. The peculiarity of such a structure consists in torsion of the sample under the force load. Two methods of connecting cells in the metamaterial are considered: "adjoining" and "overlapping". The "adjoining" method of joining cells increases the thickness of the internal structure of the sample, which allows us to consider it as a topological defect of the metamaterial. The "overlapping" method saves the base material from which the tetrachiral structure is constructed. Differences in the structure when constructing a three-dimensional sample result in a significant change in the characteristics of the sample. Numerical solution of the problem is performed in a three-dimensional formulation using the finite element method. The constitutive relation describing the behavior of the model corresponds to Hooke's law. Numerical simulation of uniaxial loading made it possible to obtain the results of mechanical response and to analyze the effective properties of metamaterials. A topological defect in the form of a thickening of the internal structure elements led to a difference in the linear dimensions of the two samples. The increased thickness of the unit cell connection elements resulted in a decrease in the effective density of the metamaterial sample. The same sample showed a triple increase in the value of the elastic modulus. The greater ability to resist deformation resulted in a reduced twist effect compared to the sample whose cells were joined by the "overlapping" method. The results obtained will make it possible to program the mechanical behavior and properties of the metamaterial sample.
IMPROVEMENT OF THE NON-DESTRUCTIVE METHOD FOR DETERMINING THE MECHANICAL CHARACTERISTICS OF ELEMENTS OF MULTILAYER STRUCTURES ON THE EXAMPLE OF PAVEMENTS
Authors: Tiraturyan A. N. , Lyapin A. A. , Uglova E. V.
Published: May 2023

The article is devoted to solving the urgent problem of improving the method of nondestructive testing of the condition of non-rigid road clothes. In addition to the previously developed approach to determining the mechanical parameters of materials of structural layers of nonrigid road coverings based on solving the inverse coefficient problem of restoring operational elastic modules providing specified displacement fields, an approach was developed that allows determining the parameters of energy dissipation in the structure of multilayer road pavement based on the correction of dynamic hysteresis loops recorded in the field and calculated using mathematical model of dynamic VAT. The article presents the results of numerical simulation of dynamic hysteresis loops for two different variants of multilayer structures. The possibilities of correcting the shape of hysteresis loops and their area by varying the tangents of the energy loss angles in layers of a multilayer medium and the elastic modulus of a homogeneous half-space are shown. The complex correction of the elastic modulus values of the structural layers of road clothes and the calculated loops of dynamic hysteresis made it possible to fully take into account the processes of energy attenuation at a distance from the point of application of the load. During the correction, it was found that the values of the elastic modulus of the road layers and the tangents of the loss angles in them have a complex effect on the areas of dynamic hysteresis loops and the nature of energy attenuation at a distance from the point of application of the load. At the same time, the elastic modulus of the underlying half-space is not limited in thickness to the greatest extent on the area of dynamic hysteresis loops (which led to an increase in the elastic modulus of the underlying half-space from 120 and 150 MPa for road construction variants with a reinforced and non-reinforced base to 170 and 160 MPa, respectively), and a decrease in the dissipated energy at a distance from the point of application This is primarily due to the tangent of the angle of energy loss in the half-space. The obtained values of the tangents of the loss angles are obviously related to the patterns of energy dissipation at the boundaries of the contacting layers of the pavement, and also take into account all possible anomalies and delaminations in the calculated structures. Within the framework of this article, calculated hysteresis loops on the surface of the pavement were obtained for the first time, the deformation energy was calculated based on their areas, and the possibility of their comparison with those registered experimentally was proved.
DEPOSITION OF FULLERITES C60 ON A SOLID SUBSTRATE TO FORM A FILM
Authors: Suvorov S. V. , Vakhrushev A. V.
Published: May 2023

The use of C60 fullerites to create films on the surface of a solid substrate can be used not only to create coatings, but also to modify the surface layer of the substrate, which from a practical point of view can be in demand in such sectors of the economy as machine and instrument engineering. To analyze the process of formation of fullerite films on the substrate surface, a computer experiment was carried out, but the behavior of not a single fullerite or fullerene, as it was implemented in previous works of the authors, but a significant number of C60 fullerites deposited in the modeling area over a certain time interval and forming a "flow" was modeled. The substrate of the solid was an iron crystal Fe(100). The substrate temperature in the study was kept constant at the following values – 300 K, 700 K, 1150 K. The initial parameters of each individual fullerite were determined stochastically within the specified limits. The software package used to conduct the described computer experiment was – LAMMPS. The interaction of the atoms of the system with each other, during the simulation, was determined by the multiparticle potential (MEAM is a modified submerged atom method). The main result of the conducted computer experiment is that it was possible to simulate the deposition of C60 fullerites with the formation of a film on a solid substrate. The main regularities of the interaction of fullerite as a whole and fullerenes forming it, both with the substrate and with other fullerites forming the film, were revealed. And the analysis of changes in temperature and potential energy of the system, both during the deposition of fullerites and after its completion, allows us to talk about the stability of the resulting fullerite – substrate system.
O efeito do fim das coligações nas eleições proporcionais na composição da Câmara dos Deputados eleita em 2022
Authors: Nicolau Jairo
Published: May 2023

As eleições de 2022 foram as primeiras, desde a redemocratização, em que os partidos foram proibidos de se coligarem para deputado federal e estadual. O artigo avalia o impacto dessa mudança na composição das bancadas eleitas para a Câmara dos Deputados. A primeira seção mostra as principais características do modelo de representação proporcional utilizado no Brasil. A seção seguinte faz um resumo das alterações promovidas pelas reformas eleitorais de 2017 e 2021. A terceira seção analisa a evolução de alguns indicadores da representação dos partidos, tomando as unidades a federação como unidade de análise: o número de partidos que concorreram; o número de partidos que elegeu deputados; a fragmentação partidária eleitoral e parlamentar. Todos os indicadores mostram que houve uma redução significativa do número de partidos representados e da fragmentação partidária nas eleições para a Câmara dos Deputados em 2022; essa redução é observada em todas as unidades da federação. O  artigo mostra que o fim das coligações teve um papel decisiva para a reconfiguração do quadro partidário brasileiro.
AERODYNAMICS OF CYLINDRICAL FINITE LENGTH BODIES
Authors: Isataev Muhtar S. , Toleuov G. , Seydulla Zh. K.
Published: May 2023

Studies were carried out in the test section of a closed-type wind tunnel. This paper presents the results of velocity distribution in the wake behind short cylinders. To study the effect of the relative length of short cylinders on the aerodynamics of the flow in the wake behind the body, the profiles of the mean velocity were measured in various
sections behind short cylinders in the median planes coinciding with the cylinder axis and perpendicular to the cylinder axis. The calculation of resistance of transversely and longitudinally streamlined short cylinders is also given. To determine aerodynamic drag, cylinders with spherical and flat ends were used, as was an ellipsoid of revolution for comparison. The drag coefficient of a transversely streamlined ellipsoid of revolution is somewhat less than its value for a short cylinder at the same elongation of the bodies. In a longitudinal flow around a short cylinder with spherical ends and ellipsoids of revolution, the drag coefficients smoothly decrease with an increase in the Reynolds number to some minimum values. Based on the results of aerodynamic studies, the regularities of the flow around finite length cylinders with different ends shapes in a free air flow with longitudinal and transverse flow in a wide range of geometric and operating parameters have been established.
EFFECT OF FLANGE VIBRATION ON AIRFLOW PASSING THROUGH A DIFFUSER WITH KNOWN GEOMETRY
Authors: Singh Santosh Kumar , Kumar Krishanu , Singh Shardul Vikram , Kumar Pankaj
Published: May 2023

A diffuser-augmented wind turbine is used to enhance the overall performance characteristic of the wind turbine.
Flanges near the trailing end of the diffuser create a pressure difference that accelerates the free-stream velocity into the diffuser, increasing the performance of the wind turbine. In the present analysis, a numerical method is used to analyze the effect of flange vibration at different amplitude and operating frequencies. The diffuser is operated at no-load (Ct = 0) condition for all cases. An optimum opening angle is determined in the absence of flange vibration at a constant airflow rate and is used for further analysis. Performance characteristics such as diffuser speed-up ratio and coefficient
of power are estimated for all cases. It is found that the velocity at the centerline oscillates with the same frequency as
that of the flange.
Polysaccharides Derived from Mushrooms in Immune and Antitumor Activity: A Review
Authors: Dong Yating , Wang Tao , Zhao Jin , Gan Bingcheng , Feng Rencai , Miao Renyun
Published: May 2023

Mushrooms are full of nutrition and have beneficial properties for human health. Polysaccharides are the main component of edible and medicinal mushrooms, especially β-glucans, which have attracted much more attention for their complex structure and diverse biological activities. Among all the diverse medicinal activities of mushroom polysaccharides,
antitumor and immune-enhancing activities are two excellent bioactivities that have much more potential and deserve application. Their bioactivities are highly dependent on their structural features, including molecular weight, monosaccharide composition, degree of branching, type and configuration of glycosidic bonds, substituent pattern, and chain conformation. This review summarizes the current method for obtaining polysaccharides from mushrooms, chemical characterizations of the structures and their roles in immune and antitumor activities. In addition, the methods for preparation of the polysaccharide derivatives and the potential medicinal clinical application are also discussed in this review, which may provide new guidance for mushroom polysaccharide development.
WALL EFFECTS ON THE THERMOCAPILLARY MIGRATION OF ISOLATED DROPLET IN LIQUIDS
Authors: Alhendal Yousuf
Published: May 2023

In this paper, computational fluid dynamics (CFD) is used to analyze and represent droplet motion in a stationary fluid. Continuity conservation equations involving two-phase flow are solved in the commercial software package Ansys-Fluent that uses the volume-of-liquid (VOF) method to observe
the liquid/liquid interface in two- and three-dimensional domains which has proven to be a very effective and valuable tool for studying the phenomenon of a multiphase interaction in zero-gravity condition. The flow is driven by the Marangoni effect caused by temperature differences. This causes the droplet to move from the cooler region to the warmer region. The results show that the scaled
velocity of the droplet decreases with the increase of the thermal Marangoni number (MaT), which is consistent with the results of previous experimental observations from the literature. Calculations are performed on cylinders with an inner diameter of Dr = 15, 17.5, 20, 25, 30, 35, 40, 50, 60, and 70 mm keeping the same 10 mm diameter for all calculations. Due to the column-wall effect, the droplet
migration rate decreases only when the ratio of column diameter to droplet diameter Dr/db (AR) is
less than 2. When Dr/ddroplet is greater than 2, the effect of column diameter on droplet speed is
negligible. No significant distortion in the shape of the droplet was observed and the droplets were
spherical for all column widths.