bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengembangan Bahan Ajar Berbasis Komik di MIN 1 Kota Palembang
Authors: Jadiddah Ines Tasya
Published: March 2022

Tujuan penelitian ini adalah (1) Mendeskripsikan spesifikasi produk bahan ajar komikkelas III yang di kembangkan di MIN 1 Palembang. (2) mendeskripsikan penggunaan produk bahan ajar komikkelas III yang di kembangkan di MIN 1 Palembang. (3) Menguji kelayakan bahan ajar komikkelas III yang di kembangkan di MIN 1 Palembang.Pengembangan bahan ajar komikini menggunakan model pengembangan ADDIE (Analysis, Design, Development, Implementation, dan Evaluation). Validasi produk diberikan kepada ahli isi/materi, desain, dan bahasa. Uji coba produk dilakukan dengan uji lapangan kepada guru dan siswa. Langkah pokok pada penelitian ini adalah analisis kondisi awal, pengembangan rancangan bahan ajar, pembuatan bahan ajar, dan penilaian bahan ajar. Teknik pengumpul data yang digunakan meliputi angket dan tes hasil belajar. Hasil pengembangan ini adalah sebagai berikut: (1) spesifikasi bahah ajar komikbentuk cetak menggunakan kertas art paper, terdiri dari 47 halaman (2) penggunaan bahan ajar komiksebagai bahan ajar penunjang pembelajaran tematik yang menarik dan menyenangkan dikelas yang tersaji sesuai dengan materi tematik kelas III MI.(3) kelayakan bahan ajar ceritabergambar ditunjukkan dengan tingkat validasi ahli isi/materi presentase 77%, ahli desain presentase 83% dan ahli bahasa presentase 84% kriteria sangat valid dan layak digunakan. Tingkat keterterapan/kemudahan guru presentase 92%, 84%, 86%, dan 94% masing-masing dengan kriteria sangat baik. Tingkat keterterapan/kemudahan siswa presentase 91,8% dengan kriteria sangat baik. Tingkat kemenarikan presentase 93% kriteria sangat menarik. Bahan ajar komikini dapat meningkatkan hasil belajar siswa rata-rata dari kelas eksperimen 94,3 dan kelas kontrol 75,6. Pada uji-T menggunakan rumus uji t-tes berpasangan thitung ≥ ttabel yaitu 13,0 ≥ 2,05. H0 ditolak dan Ha diterima. Artinya terdapat perbedaan signifikan antara hasil belajar dengan menggunakan bahan ajar komik dengan hasil belajar yang tidak menggunakan Bahan Ajar Berbasis Komik kelas III di MIN1 Palembang.
Efektivitas Penyelenggaraan Diklat dalam Meningkatkan Kualitas Kerja di Balai Pengembangan dan Kompetensi PUPR Wilayah I Medan
Authors: Nisfah Ummu Khoirotun , Dwijaya Reni , Lubis Sari Purnama Zein , Harahap Isnaini
Published: March 2022

Penelitian ini bertujuan untuk mengetahui efektivitas penyelenggaraan diklat sdm di Balai Pengembangan dan Kompetensi PUPR Wilayah I Medan. Jenis penelitian ini merupakan jenis penelitian kualitatif dengan metode desktiptif kualitatif. Metode penelitian ini pada dasarnya bertujuan untuk menggambarkan secara cermat karakteristik dari suatu fenomena. Teknik pengumpulan data melalui wawancara, observasi, dan studi dokumentasi. Hasil dari penelitian ini menunjukkan bahwa Penyelenggaraan Pendidikan dan Pelatihan yang diikuti oleh para pegawai pada Balai Pengembangan dan Kompetensi PUPR Wilayah I Medan sudah terlaksana dengan cukup baik dikarenakan materi yang disampaikan selama pelaksanaan diklat bisa diaplikasikan dengan baik, kendala yang dihadapi pada saat pelatihan online yaitu sulitnya mengontrol keaktifan para peserta pelatihan karena pembelajaran yang online dan gangguan jaringan internet pada saat pelatihan yang bisa saja sewaktu-waktu hilang dan terputus sehingga menjadi tidak efektif. Banyak pengetahuan dan keterampilan yang didapatkan oleh para peserta pelatihan dan tentunya sangat bermanfaat dalam bidang kerja masing-masing pegawai.
Recursos educativos abiertos
Authors:   Universidad de Barcelona, Santos Hermosa Gema , Abadal Falgueras Ernest ,   Universidad de Barcelona
Published: March 2022

La pandemia de la COVID-19 ha irrumpido de manera imprevista e implacable en la mayoría de sectores, y la educación no ha sido ninguna excepción. En la universidad hemos pasado de la presencialidad a la virtualidad de manera improvisada, con pocos medios y escasas indicaciones. En este contexto, los contenidos educativos y, en especial, los denominados recursos educativos abiertos (REA) –en inglés, open educational resources– van a ser una pieza fundamental para afrontar los retos de la Educación Superior, así como en el resto de niveles.
A DESCRIPTIVE OBSERVATIONAL STUDY OF DIFFERENCE OF ESTROGEN & PROGESTERONE RECEPTOR STATUS BEFORE AND AFTER NEOADJUVANT CHEMOTHERAPY IN BREAST CANCER
Authors: Singh Amarjeet , Kumar Neeraj , Bhadauria Nagendra Singh , Sharma Raj Govind , Singh Amit
Published: March 2022

Background: Neoadjuvant chemotherapy (NACT) forms the initial modality of treatment for primarily inoperable
locally advanced breast cancer (LABC). A change in hormone receptor status after NACT has important therapeutic and
prognostic consequences. The primary objective of this study is to compare Hormone Receptor status before and after neoadjuvant chemotherapy
(discordance). The secondary objective is to study correlation between tumour response and hormone receptor expression.
Method: This is a descriptive study of 80 LABC patients who received NACT. All patients who underwent core biopsy and ER/PR assessment
before and after NACT were included in this study. Data was collected prospectively from each patient in a structured proforma
Results and conclusion: The hormone receptor discordance rate & response to NACT was assessed. ER discordance is 16.4%. in 07 patients
estrogen receptor(ER) change positive to negative and in 04patients estrogen receptor change negative to positive. PR discordance is 22.4%. In
12 patients Progesterone receptor (PR) change positive to negative and in 03patients progesterone receptor change negative to positive.
EVALUATION OF VITAMIN K DEFICIENCY AND IT’S EFFECT IN COMPLICATED SEVERE ACUTE MALNUTRITION
Authors: Kumar Suresh , Singh Jai , Ninama Rameshwar , Lal Suman Rameshwar
Published: March 2022

Objective: The World Health Organization (WHO) updates SAM management protocol regularly but still it is not clear
whether Vitamin K should be given to SAM children or not. But in our institute we observed that many children of
complicated SAM had various bleeding manifestations on admission that's why we planned to study the evaluation of vitamin K deciency and
effect of vitamin K in complicated SAM.
Methods: It was a hospital based prospective interventional study conducted in 150 complicated SAM children, 100 in group A and 50 in group
B. Group A children received Vitamin K 5 mg via intravenous route on admission while group B did not received Vitamin K. The PT-INR, aPTT
along with routine investigations were done on admission in both the groups. Repeat PT-INR and aPTT were done after 24 hours of Vitamin K
administration in group A and before discharge (on day 10 of admission) in group B children who had abnormal INR on admission. All the
collected data were managed and analyzed with standard software Biostatics (SPSS Version 20)
Results: Forty two (28%) out of 150 children, 27 in group A and 15 in group B had abnormal INR on admission. In group A, 12 (44.4%) children
had bleeding manifestations and most of children (66.6%) had GI bleeding and Malena. In group A, After 24 hour of vitamin K administration all
27 children had signicant improvement in INR and 20 out of 27 with abnormal aPTT had signicant improvement in aPTT. But in the group B
where no vitamin K was administered more than 50% had persistence of abnormal PT, INR and aPTT on day 10 of admission.
Conclusion: More than one fourth complicated SAM children had vitamin K deciency and signicant improvement was seen in children who
received vitamin K on admission compared to children who did not receive vitamin K and kept on diet alone.
FORMULATION AND EVALUATION OF HIBISCUS MEDICATED ANTIMICROBIAL, ANTIFUNGAL, AND CONDITIONING GEL SHAMPOO.
Authors: Kharat Ankit , Kadam Rutuja , Khule Tanmay , Khandare Sahil , Kamble Raj
Published: March 2022

Background: The leaves and owers of Hibiscus rosa-sinensis have hair growth-promoting and anti-greying properties
as well as excellent antimicrobial and antifungal activity. Active ingredients when added in shampoos which classify
them as drugs. Medicated shampoos, in addition to cleansing and conditioning, deliver extra benets to the hair and scalp.
Objectives:The objective of this study was to formulate a shampoo making use of the therapeutic activities of Hibiscus rosa-sinensis Linn.
Methods: The study was carried out using standardized procedures at ST. WILFRED'S INSTITUTE OF PHARMACY, Panvel from 21 August
2021 to 21 December 2021. Our study included identication, quantitative analysis, extraction, pre-formulation studies, evaluation along with all
other standard procedures required.
Results: The alcoholic extracts of Hibiscus rosa-sinensis Linn. showed antimicrobial and antifungal activity. The formulated shampoo
preparation passed all the recommended standard evaluation tests viz: Organoleptic properties, rheological evaluations, pH, percent solid test,
foam producing, and foam retention capability, wetting time, surface tension, dirt dispersion, and cleansing action.
Conclusion: The formulated shampoo revealed the ideal characteristics of the shampoo and is devoid of any harmful preservatives like paraben.
It can be used as a safer alternative to its synthetic counterparts.
ADVERSE EVENTS OF THE COVID VACCINE IN TERTIARY CARE CENTRE IN BUNDELKHAND REGION: AN OBSERVATIONAL STUDY
Authors: Arya Vimal , Kumar Vinay , Kauhsik Sadhna , Singh Sengar Narendra
Published: March 2022

The Drugs Controller General (India) approved COVAXIN and COVISHIELD. Ever since the corona vaccine was
launched in India, it has been playing the important role in controlling the pandemic. As with all medicinal products,
vaccine safety must continue to be monitored and it is not possible to identify and record many adverse events in a shorter duration, protected
environment and restricted population in trials. During the mass vaccination, a total of 1377 recipients were recognised with adverse events. Total
54.39% male and 45.61% female recipients were experienced adverse events. In the 18-45 age group total of 83.01% people while in the >45 age
group 16.99% people were vaccinated. A total of 3032 Non-serious adverse events were reported in 1377 persons in study duration. The most
common adverse event reported was fatigue, followed by headache. Another common adverse event was injection site pain and fever in the
population. Another side less common adverse events were muscle ache followed by pruritus. Most of the adverse events were experienced by the
Covishield vaccine. However, all the adverse events were recovered within a week. Our study showed that all the adverse events were non-serious
in nature and no one needed hospitalisation for adverse events
EFFECT OF SENSORIMOTOR INTEGRATION TRAINING ON BALANCE, NEUROMUSCULAR CONTROL AND REACTION TIME IN ELDERLY.
Authors: Mani Ritika , Warikoo Deptee , Bhatt Sunil
Published: March 2022

Background: SMT (sensorimotor training) is a form of exercise aiming to decrease the muscle imbalance by maximizing
the sensory input coming from three sites in the body where there is a large number of propioception(the foot, sacroiliac
joint ,cervical spine).The purpose of study is to check the effect of SMT on neuromuscular control, balance and reaction time using three levels i.e.
stable surface , unstable surface and sand in elderly population.
Method:The study was an experimental study with a sample size of 30 elderly subjects of age group 60-80 years. They had performed exercises in
st three levels 1 in stable then foam then sand. They were assessed using SOT test, test for neuromuscular control and reaction time.
Conclusion: The study shows that the sensorimotor training which is given in three levels i.e., in stable surface , foam and sand are effective in
improving balance, increasing neuromuscular control and decreasing reaction time in elderly for decreasing risk of fall and improving quality of
life in elderly.
Graph Based Deep Learning for Spatial Reuse Optimization in Dense WLAN Deployments
Authors: Azeez Stephen , Henna Shagufta
Published: March 2022

The IEEE 802.11ax standard is designed to provide high-efficiency WLAN operating in dense deployment, with a focus on increasing robustness and uplink transmission.  IEEE 802.11ax aims to deliver self-configuration and self-adaptation capabilities for interference management techniques in dense deployments, to improve overall network conditions. The IEEE 802.11ax medium strives to intelligently use network allocation vectors (NAV), which block simultaneous transmission of neighboring co-existing access points from transmitting for a set period of time. Given an acceptable collision probability, this collision avoidance strategy tends to degrade network throughput and increase transmission delays since the medium is never completely exploited. In this paper, we propose affinityGNN, a graph neural network approach to actively optimize network co-existence transmission in a dense scenario. We introduce direct-affinityGNN which considers direct communications between IEEE802.11ax-compliant wireless systems and in contrast, skip-affinityGNN, which considers communication between IEEE802.11ax and Legacy devises by aggregating neural messages from direct and skip (two-hop) communicating neighbors in the dense wireless network deployment. Extensive experimental results not only show the superior performance of our proposed model over the state-of-the-art, but also demonstrate its potentially good interpretability and robustness for wireless network structure.
Singlet Dioxygen ¹O₂, its Generation, Physico-Chemical Properties and its Possible Hormetic Behavior in Cancer Therapy
Authors: Henry Marc , Radman Miro , Benichou Luc , Alfarouk Khalid O. , Schwartz Laurent
Published: March 2022

Singlet dioxygen 1O2 is one excited state among the three other possible spectroscopic states of molecular oxygen. Here, we first describe the use of published spectroscopic data and thermodynamic modeling based on irreversible entropy production. Such concepts are further applied to the synthesis of singlet dioxygen and its reactions with crucial biological molecules. In a last section, we suggest that singlet dioxygen and ozone may be responsible for the success of radiation therapy, that has been used to treat cancer successfully for over 120 years. Its precise mechanism of action remains controversial. We thus aim to clarify the role of singlet oxygen in radiotherapy and chemotherapy. A partial conversion of ionizing radiation in the body into thermal photons could be assumed. The antitumor effect may involve these thermal photons, such as the one delivered by red/infrared sources. Thermal photons (wavelengths of 635 nm and 1270 nm) convert triplet dioxygen into singlet dioxygen by changing the spin of its outer electrons. Despite its short half-life, Singlet dioxygen is responsible for the activation of multiple free radicals (such as hydrogen peroxide), which may target proteins and DNA, induce either apoptosis or oxidative phosphorylation. At moderate concentrations, thermodynamic data suggests that singlet dioxygen may readily react with water to form a potent pro-apoptotic molecule (ozone), thus decreasing cancer growth. However, at high concentration cytotoxic effects against all kind of cells occurs. This strongly suggests a non-linear hormetic behavior of singlet dioxygen. It is also proposed that cytotoxic chemotherapy induces the same free radicals that singlet dioxygen does. There are also other ways to enhance the production of singlet dioxygen, such as phototherapy using Methylene Blue for instance. As a source of reactive oxygen species (ROS), singlet oxygen could thus be a common agent active both in radiotherapy and chemotherapy. It is probable that the activity of radiation therapy and chemotherapy may be mediated by the conversion of triplet to singlet oxygen. This may explain the oxygen effect such as described in radiotherapy and chemotherapy.
Study of Autonomic Neuropathy in Cardiovascular System in Chronic Renal Failure Patients on Maintenance Hemodialysis
Authors: Ruparelia Darshan , Devpura Ganpat , Thakuriya Rakesh , Rani Bindu
Published: March 2022

Autonomic nervous system abnormalities are major causes of morbidity and mortality in patients with chronic renal failure (CRF) on hemodialysis and are generally considered a part of polyneuropathy. Postural hypotension, impotency, gastrointestinal disturbance, gastrointestinal motility, and sweating abnormalities are common symptoms. The most frequent complication in patients with CRF on hemodialysis is intradialytic hypotension, and it has been suggested that intradialytic hypotension is mostly related to autonomic neuropathy. The pathogenesis of autonomic neuropathy is unclear, but a reduced response to norepinephrine by the end organ and the toxic effect of metabolic toxins are considered to be some of the causes. Five cardiovascular reflex tests are generally used to determine autonomic neuropathy: the heart rate reaction to the Valsalva Maneuver, the heart rate variability during deep breathing, the heart rate response to standing up, the blood pressure response to standing up, and the blood pressure response to hand grip exercise.
Fatores relacionados ao consumo alimentar saudável e não saudável entre adolescentes escolares
Authors: Guimarães Fonseca Adélia Dayane , Nogueira da Silva Patrick Leonardo , Ribeiro Lopes Joanilva , De Pinho Lucinéia , Santos Figueiredo Brito Maria Fernanda , De Oliveira e Silva Carla Silvana
Published: March 2022

Objetivo: avaliar a prevalência e fatores relacionados ao consumo alimentar saudável e não saudável entre adolescentes escolares. Método: estudo de corte transversal, realizado com 634 escolares de 10 a 16 anos pertencentes a cinco escolas estaduais do município de Montes Claros, Minas Gerais, entre agosto/2016 e julho/2017. Resultados: houve prevalência do sexo feminino (60,1%). Com relação ao consumo de tabaco e álcool, 97,8% dos adolescentes negaram tabagismo e 92,4% negaram etilismo. Um total de 59,5% relatou praticar alguma atividade física e 95,1% dos adolescentes escolares têm uma autopercepção da saúde como sendo “excelente”, “ótima” ou “boa”. Os padrões de consumo alimentar saudável e não saudável estiveram associados à maior idade e ao consumo de álcool. Conclusão: o presente estudo contribui no sentido de estimar a ocorrência de marcadores de consumo alimentar de interesse para o monitoramento de fatores de risco para as doenças não transmissíveis.
Una intervención psicoanalítica a Las Hortensias de Felisberto Hernández
Authors: Chabalgoity Ana María
Published: March 2022

One cannot plunge into Felisberto’s narrative without experiencing what Julio Cortázar (1975) reveals in the prologue to his novels, «the inexpressible contact with immediacy, with all we continuously ignore or distance ourselves from, in the name of what we call living». The fact that Las hortensias (The hydrangeas, 1949) the author deploys his narrative without resorting to first-person narration inspires an approach to the content of its internal warp and weft. Boastful objectivity which only in appearance deprives it from the internal bonds with other narratives, in favor of the intimate drama and the finely finished montage it suggests. recibido: abril In this paper, the author proposes a way to approach this place by writing an imaginary letter to its main characters. It considers that this method of intervention into the literary text presupposes adhere to the principle that literature can inform psychoanalysis better than the hesitant explorations the latter directs to the former. Las hortensias expresses in literary key much of what psychoanalysis has to say about the Ego, the other and the relation to the other.
Isolation and statistical optimization of rhodanese (a thiosulphate sulphur transferase) production potential of Klebsiella oxytoca JCM 1665 using response surface methodology
Authors: Itakorode Babamotemi Oluwasola , Okonji Raphael Emuebie
Published: March 2022

Microorganisms are increasingly being used in cyanide bioremediation. Several organisms have been reported to thrive in cyanide contaminated wastewater due to their ability to produce cyanide detoxifying enzymes. However, to improve the production efficiency of these enzymes combinations of process variables need to be optimized. In this study, Klebsiella oxytoca JCM 1665 was isolated from industrial wastewater, identified by sequencing its 16S rRNA gene and subjected to rhodanese production using submerged fermentation. The conditions for production were optimized using response surface methodology (RSM). Central composite design was employed to evaluate the effects of three production parameters – peptone (1 – 5 %), KCN (0.1 – 0.5 %), and time of incubation (1 – 24 h). Second-order polynomial model was used to predict the response. Rhodanese activity in the experiments varied from 0.05 to 7.5 RU.mg-1.  Under the optimum conditions of 4.35 % peptone, 0.4 % KCN and incubation time of 13 hr., the value for rhodanese yield was 7.810 U.mL-1.  The R2 value for the model was 0.9925 (R2 = 0.9925). Also, the experimental values are in accordance with those predicted, indicating the suitability of the employed model and the success of RSM in optimizing the production conditions.
In vitro culture initiation and regeneration of two highly productive clones of poplar
Authors: Khoma Yuliia , Khudolieieva Lidiia , Rashydov Namik , Kutsokon Nataliia
Published: March 2022

In vitro shoot regeneration is a fast and reliable method for propagation of valuable tree genotypes and important step in genetic manipulations. This study aimed to establish an optimal in vitro culture initiation and regeneration protocol for highly productive poplar clones ‘Novoberlinska-3’ (Populus pyramidalis × P. laurifolia) and ‘Volosystoplidna’ (P. trichocarpa). In vitro culture was initiated either on MS (IM-MS) or WPM (IM-WPM) medium both containing BAP (0.2 mg.L-1) and IBA (0.1 mg.L-1). Results demonstrated that the best initiation medium for the clone ‘Volosystoplidna’ was IM-WPM on which 93.3 % of explants survived, while explants from ‘Novoberlinska-3’ better survived on IM-MS. After establishing both genotypes into aseptic culture, regeneration experiments were started using two types of explants, leaf and petioles, planted on callus induction medium containing 2iP (1.02 mg.L-1) and NAA (1.86 mg.L-1). Furthermore, microshoots were placed on shoot induction medium supplemented with 0.04 mg.L-1 thidiazuron, and then transferred on shoot elongation medium with 0.2 mg.L-1 BAP. Regeneration protocol showed better performance of poplar ‘Novoberlinska-3’, but it was also efficient for ‘Volosystoplidna’. Plant regeneration from leaf explants in the clone ‘Novoberlinska-3’ showed the highest regeneration percentage (92.3 %) and the number of shoots per explant (3.1), which significantly exceeded other explants. Our results showed a significant difference between the survivability of two clones during culture initiation. The differences in regeneration rates between the clones as well as leaf and petiole explants were also determined. Obtained aseptic cultures of highly productive poplar hybrids will be used in our further studies, especially for genetic transformation.
Synergistic effect of arbuscular mycorrhizal fungi and poultry manure to significantly increase proximal structure and physiological parameters of Cucurbita maxima and Telfairia occidentalis under soil salinity
Authors: Okon Okon G. , Matrood Abdulnabi A. , Rhouma Abdelhak , Antia Ukponobong E.
Published: March 2022

This research was carried out to assess the potential impacts of arbuscular mycorrhizal fungi (AMF) complex (Glomus geosporum and Rhizophagus irregularis) synergy with poultry manure (PM) on the survival of Cucurbita maxima and Telfairia occidentalis grown under salt stress conditions. This experiment was set up in a completely randomized design with all treatments replicated thrice for both test plants. Analysis of the saline and garden soils used in this study revealed significant (P ≤ 0.05) variations in their soil physico-chemical parameters. Increase in parameters such as pH (7.75 for saline soil; 6.78 for garden soil), EC (SS 7.80 dS.m.-1; GS 0.32) and Ex Na+ (SS 8.81 cmol.kg-1; GS 0.4181 cmol.kg-1) was observed in the saline soil while there was a decrease in organic carbon, total nitrogen and available phosphorus in saline soil. Proximate analysis of C. maxima and T. occidentalis leaves revealed that fiber, carbohydrate, and caloric value were slightly reduced in saline soil treatments while ash, protein and lipids contents were slightly increased. AMF inoculation and PM application had significant effect on proximate composition of these plant leaves but caloric value which was significantly (P ≤ 0.05) increased in non-saline soil treatments. Physiological parameters such as leaf turgid weight (LTW), leaf relative water content (LRWC), vigor index (VI), and salt tolerance index (STI) were significantly reduced by salinity, while electrolyte leakage (EL) was higher in saline soil treatments than non-saline soil treatments. However, inoculation with AMF in combination with PM amendment significantly increased LTW, LRWC, VI, and STI in both saline and non-saline soil treatments above single treatment with mycorrhizal species and poultry manure. However, EL reduced with mycorrhizal inoculation. The results of this work have shown that AMF and PM can enhance plants ability to tolerate salinity possibly through some morphological and physiological changes which improved water and nutrients uptake.
Method for Stability Analysis of a Wooden Coupling Bar under Dynamic Loading
Authors: Савин С. Ю. , Федорова Н. В.
Published: March 2022

Постановка задачи . Целью исследования являлось развитие расчетной модели составных стержневых элементов из древесины при внецентренном сжатии для случая особого предельного состояния, а также разработка методики расчетного анализа таких конструкций с учетом нелинейного характера их деформирования (конструктивной, геометрической и физической нелинейности). Результаты. Построены аналитические выражения для вычисления жесткости приведенных по касательным модулям деформаций поперечных сечений цельного внецентренно сжатого элемента, эквивалентного элементу составного сечения с равномерно распределенными по длине связями сдвига и жесткими поперечными связями. Предложена методика и алгоритм расчета устойчивости деформированного состояния составных деревянных внецентренно сжатых стержневых элементов несущей системы здания при внезапном динамическом догружении, вызванном структурными изменениями в конструктивной системе. Выводы. Предложенная расчетная модель внецентренно сжатого составного стержня и алгоритм ее реализации применительно к расчету устойчивости деформированного состояния позволяют выполнять оценку сопротивления прогрессирующему обрушению деревянных конструкций зданий и сооружений при деградации сдвиговой жесткости их поперечных сечений.

Statement of the problem. The aim of the study was to develop a computational model of composite bar elements made of wood under eccentric compression for the case of a special limiting state as well as to develop a methodology for computational analysis of such structures taking into account the nonlinear nature of their deformation (geometric and physical nonlinearity). Results. In this work, analytical expressions are constructed for calculating the stiffness of the shear moduli of the cross sections of a solid eccentrically compressed element equivalent to an element of a composite section with shear links and rigid cross links evenly distributed along the length. A method for calculating the stability of the deformed state of composite wood eccentrically compressed rod elements of the load-bearing system of a building under sudden dynamic loading is proposed. Conclusions. The proposed calculation model of an eccentrically compressed composite bar and the algorithm for stability analysis allow one to assess the resistance to the progressive collapse of wooden members of buildings and structures with the degradation of the shear stiffness of their cross sections.
Selection of the Parameters of Piles Testing Using the Principles of the Wave Impact Theory
Authors: Целищев Г. А. , Золотозубов Д. Г.
Published: March 2022

Постановка задачи. Рассматривается вопрос испытания свай методом, использующим волновую теорию удара и корреляции волновых характеристик с результатами статических испытаний. Динамические методы испытаний дешевле и быстрее, однако имеют меньшую точность по сравнению со статическими. В данном случае рассматривается ситуация, при которой на площадке уже проведен ряд статических испытаний, а дальнейший контроль несущей способности свай планируется осуществлять с помощью волновых методов. Предлагается коррелировать коэффициент демпфирования грунта исходя из данных статических испытаний. Результаты. По результатам исследования предложены методика и алгоритм корреляции данных волновых испытаний свай с результатами статических испытаний через подбор коэффициента демпфирования грунта, который при стандартном расчете является табличным эмпирическим коэффициентом. Выводы. Предложенный метод корреляции коэффициента демпфирования позволяет получить более точные данные о несущей способности свай по сравнению с использованием табличных значений. Данный подход применим только при наличии классической кривой распределения усилий во время волновых испытаний.

Statement of the problem. Consideration should be given to testing piles by a method using wave theory of impact and correlation of wave characteristics with static test results. Dynamic test methods are cheaper and faster, but less accurate than static ones. In this case, a situation is considered in which a number of static tests have already been carried out on site, and further control of the load-bearing capacity of the piles is planned to be carried out using wave methods. It is proposed to correlate the soil damping coefficient based on the data of static tests. Results. Based on the results of the study, a method and an algorithm for the correlation of data from wave tests of piles with static tests are proposed through the selection of the soil damping coefficient, which, in a standard calculation, is a tabular empirical coefficient. Conclusions. The proposed method for the correlation of the damping coefficient makes it possible to obtain more accurate data on the load-bearing capacity of piles in comparison with the use of tabular values. This approach is applicable only when there is a classical force distribution curve during wave tests.
Theoretical and Experimental Investigations of Pressure Loss Determination in Filter Elements of Coarse and Fine Gas Purification When Placed in One Body
Authors: Хомутов А. О. , Бирюков А. В. , Усачев А. П. , Куцыгина О. А.
Published: March 2022

Постановка задачи. Надежная эксплуатация современных высокоточных систем редуцирования и управления потоками газа, расположенных в шкафных, блочных и капитальных газораспределительных пунктах, требует использования двухступенчатых цилиндрических установок для очистки газа, содержащих фильтры предварительной и тонкой очистки. Актуальной задачей является создание и научное обоснование применения экономически эффективных двухступенчатых устройств по очистке природного газа, размещаемых в газораспределительных пунктах, а также разработка аналитических методов расчета для определения потерь давления в фильтрующих элементах двухступенчатых цилиндрических установок и сроков их регенерации. Результаты. Приводится теоретическое и экспериментальное определение потерь давления в зависимости от степени засорения многослойного фильтрующего элемента механическими примесями. Выводы. Получены аналитические уравнения по определению потерь давления, отличающиеся от известных решений тем, что эффект засорения механическими примесями в многослойном фильтрующем полотне впервые представлен в виде суммы потерь давления на ряде чистых калиброванных сеток, расположенных одна за другой, с размерами ячеек каждой последующей сетки меньше, чем предыдущей.

Statement of the problem. Reliable operation of modern high-precision gas flow reduction and control systems located in cabinet, block and capital gas distribution points calls for the use of two-stage cylindrical gas purification plants containing preliminary and fine filters. An urgent task is the design and scientific justification for the use of cost-effective two-stage natural gas purification devices located at gas distribution points, as well as the development of analytical calculation methods for identifying pressure losses in the filter elements of two-stage cylindrical installations and the timing of their regeneration. Results. Theoretical and experimental identification of pressure losses depending on the degree of clogging of a multilayer filter element with mechanical impurities is provided. Conclusions. Analytical equations for determining pressure losses are obtained which differ from the known solutions in that the effect of clogging with mechanical impurities in a multilayer filter cloth is first presented as the sum of pressure losses on a number of clean calibrated grids located one after another, with the cell sizes of each subsequent grid less than the previous one.
Assessment of Physical and Mechanical Properties of Road Cement Concrete Prepared on Magnetic Water
Authors: Носов С. В. , Болдырева М. А.
Published: March 2022

Постановка задачи. В последние годы в развитых странах растет спрос на строительство дорог и автомагистралей с жесткими дорожными одеждами, обеспечивающими удовлетворительную восприимчивость к повышающимся динамическим нагрузкам со стороны транспортных средств. Для дорожных цементобетонов открытым и актуальным остается вопрос эффективного и упрощенного применения операции омагничивания воды затворения цемента путем использования установок микроволнового излучения. При этом необходимо в первую очередь оценить изменчивость прочностных свойств цементобетона и подвижности цементобетонной смеси на омагниченной воде. Результаты. Исследованы показатели прочности дорожного цементобетона и подвижности цементобетонной смеси при использовании в процессе ее изготовления омагниченной воды посредством применения установки микроволнового излучения. В качестве исследуемых факторов были выбраны мощность электромагнитного излучения и время его воздействия при омагничивании воды. Применение теории математического планирования эксперимента позволило получить соответствующие закономерности в виде уравнений регрессии. Выводы. Применение омагниченной воды при производстве цементобетонной смеси показало проявление положительного эффекта в рамках обеспечения повышенной прочности дорожного цементобетона. При этом уменьшение ее подвижности требует пересмотра технологических режимов укладки и последующего уплотнения.

Statement of the problem. In recent years, in all civilized and highly developed countries, there has been a growing demand for the construction of roads and highways with rigid pavements that provide a satisfactory susceptibility to increasing dynamic loads from vehicles. For road cement concrete, the issue of effective and simplified application of the operation of magnetizing cement mixing water by using microwave radiation units remains relevant and urgent. In this case, it is necessary, first of all, to assess the variability of the strength properties of cement concrete and the mobility of the cement concrete mix on magnetized water. Results. The indicators of the strength of road cement concrete and the mobility of the cement concrete mixture when using in the process of its manufacture magnetized water through the use of a microwave radiation installation have been investigated. The studied factors were the power of electromagnetic radiation and the time of its exposure during the magnetization of water. The application of the theory of mathematical planning of the experiment made it possible to obtain the corresponding regularities in the form of regression equations. Conclusions. The use of magnetized water in the production of cement concrete mixture has shown a positive effect in terms of ensuring increased strength of road cement concrete. At the same time, a decrease in its mobility requires a revision of the technological modes of laying and subsequent compaction.
Numerical Simulation of Aerodynamic Stability of Long-Span Bridges
Authors: Козлов А. В. , Сафронов В. С.
Published: March 2022

Постановка задачи. Целью работы является моделирование методом конечных элементов резонансных колебаний неразрезного балочного пролетного строения моста в направлении, перпендикулярном ветровому потоку. Рассматривается нестандартная ситуация, возникшая 20 мая 2010 года на мосту через реку Волгу в городе Волгограде. Результаты. Разработан эффективный алгоритм расчета аэродинамической устойчивости большепролетных мостовых сооружений с использованием одного из самых распространенных в России и ближнем зарубежье программных комплексов «ЛИРА-САПР». Даются рекомендации по подбору и моделированию демпферов. Выводы. Разработанный алгоритм позволяет численно описать возмущающую силу периодического срыва вихрей ветрового потока, вызывающую резонансные колебания пролетных строений мостов, приложить эту силу к расчетной модели в «ЛИРА-САПР» и получить параметры, позволяющие оценить напряженно-деформированное состояние системы при колебаниях и подобрать оптимальные характеристики демпфирующих устройств.

Statement of the problem. The aim of the work is to simulate the resonant vibrations of the continuous beam span of the bridge in the direction perpendicular to the wind flow by the finite element method. The article deals with a non-standard situation that arose on May 20, 2010 on the bridge over the Volga River in the city of Volgograd. Results. As a result, an effective algorithm for calculating the aerodynamic stability of large-span bridge structures was developed using one of the most widespread software systems in Russia and neighboring countries - «Lira-SAPR». Recommendations for the selection and modeling of dampers are given. Conclusions. The developed algorithm makes it possible to numerically describe the disturbing force of periodic breakdown of wind flow vortices, which causes resonant oscillations of bridge spans, to apply this force to the design model in «Lira-SAPR», and to obtain parameters that make it possible to assess the stress-strain state of the system during oscillations and to select the optimal characteristics of the damping devices.
Space of Conceptual Creativity Based on Architectural Design
Authors: Кокорина Е. В.
Published: March 2022

Постановка задачи. Рассмотреть понятие «пространство концептуального творчества» в основе архитектурного проектирования, объединяющее в себе важные теоретические составляющие для вариантного развития и формирования главной идеи проекта. Результаты. В рамках теоретико-методологических основ процесса архитектурного проектирования представлена модель «Энергетический каркас проектного творчества». Для креативного развития художественно-эмоциональной составляющей идеи на этапе творческого поиска предложена модель «Пространство концептуального творчества». Выводы. Проанализированы теоретические аспекты, необходимые для комплексного развития архитектурной идеи проекта на этапе творческого поиска для использования в учебном архитектурном проектировании.

Statement of the problem. The concept of «conceptual creativity space» at the heart of architectural design is explored which combines important theoretical components for variant development and the formation of the main idea of the project. Results. Within the framework of the theoretical and methodological foundations of the process of architectural design, the model «Energy Frame of Design Creativity» is presented. For the creative development of the artistic and emotional component of the idea at the stage of creative search, the model «Space of Conceptual Creativity» is proposed. Conclusions. The theoretical aspects necessary for the complex development of the architectural idea of the project at the stage of creative search for use in educational architectural design are analyzed.
Kazan Yavlensky Convent of Ryazan: Formation of the Architectural and Planning Structure of the Monastery
Authors: Князева М. В. , Коробова А. В. , Шемякина В. А.
Published: March 2022

Постановка задачи. Одно из наименее изученных культовых сооружений Рязани на сегодняшний день - Явленский Казанский женский монастырь, являющийся объектом культурного наследия федерального значения. Цель настоящего исследования состоит в комплексном изучении Казанского монастыря, его характерных черт, вопросов преемственности и региональных традиций, что должно способствовать восстановлению утраченных частей комплекса и сохранению архитектурного наследия в целом. Для реализации данной цели необходимо изучение истории формирования архитектурно-планировочной и композиционной структуры монастыря и выявление ее особенностей. Результаты. Изучена история возникновения и развития обители. Дан комплексный анализ архитектурно-планировочной и композиционной структуры ансамбля. Выводы. Сделан вывод, что развитие и трансформация территории монастырского комплекса происходили на протяжении всего периода существования. При этом сохранились основные визуальные связи, архитектурно-планировочное и архитектурно-ландшафтное значение монастыря. Восстановление ансамбля Казанского монастыря позволит создать дополнительное культурное городское общественное пространство, которое помимо религиозной направленности может выполнять культурную, творческую, торговую и образовательную функции, основанные на традиционных видах деятельности монастыря. Такие общественные пространства являются местом притяжения туристов и местных жителей.

Statement of the problem. The architectural and urban development of Ryazan is connected with historical events both in the city itself and in Russia as a whole. This has affected the development of Ryazan monasteries, both within the territories themselves and in relation to the urban area. For a long time, the territory of the monasteries was used for various purposes, and restoration work is currently being carried out there. One of the most unexplored ones to date is the Yavlensky Kazan women's monastery, which at the state level is declared as an object of cultural heritage of Federal significance. In order to restore it, it is necessary to study the history of the monastery's formation and analyze its architectural and spatial structure. Results. The article presents the history of the monastery's origin and development. A comprehensive analysis of the architectural planning and compositional structure of the Ensemble is given. Сonclusions. It is concluded that the development and transformation of the territory of the monastery complex took place during the entire period of its existence. At the same time, the main visual connections, architectural planning and architectural landscape significance of the monastery have been preserved.
Executive Disorder: The Muslim Ban, Emergency Advocacy, and the Fires Next Time
Authors: Ayoub Abed , Beydoun Khaled
Published: March 2022

On January 27, 2017, one week into his presidency, Donald Trump enacted Executive Order No. 13769, popularly known as the “Muslim Ban.” The Order named seven Muslim-majority nations and restricted, effective immediately, the reentry into the United States of visa and green card holders from these states. With the Muslim Ban, President Trump delivered on a central campaign promise, and as a result, injected Islamophobia into American immigration law and policy.

The Muslim Ban had an immediate impact on tens of thousands of Muslims, directly affecting U.S. visa and green card holders currently outside of the country, while exacerbating fear and hysteria among immigrant and citizen Muslim populations within the country. This Essay memorializes the advocacy taken by the authors in the immediate wake of the Muslim Ban, highlighting the emergency legal and grassroots work done by the authors during a moment of national disorder and disarray, and within Muslim American communities, mass confusion and fear.

This Essay highlights efforts, coalition building, and the necessary resources that contributed to the effective defense and education of impacted Muslim populations. It further examines the heightened vulnerabilities of and compounded injuries to often-overlooked Muslims at the intersection of race and poverty, as a consequence of Islamophobic policies such as the Muslim Ban.
“Why Should I Go Vote Without Understanding What I Am Going to Vote For?” The Impact of First Generation Voting Barriers on Alaska Natives
Authors: Tucker James , Landreth Natalie , Lynch Erin
Published: March 2022

This article explores the many forms of discrimination that have persisted in Alaska, the resulting first generation voting barriers faced by Alaska Native voters, and the two contested lawsuits it took to attain a measure of equality for those voters in four regions of Alaska: Nick v. Bethel and Toyukak v. Treadwell. In the end, the court’s decision in Toyukak came down to a comparison of just two pieces of evidence: (1) the Official Election Pamphlet that English-speaking voters received that was often more than 100 pages long; and (2) the single sheet of paper that Alaska Native language speakers received, containing only the date, time, and location of the election, along with a notice that they could request language assistance. Those two pieces of evidence, when set side by side, showed the fundamental unequal access to the ballot. The lessons learned from Nick and Toyukak detailed below are similarly simple: (1) first generation voting barriers still exist in the United States; and (2) Section 203 of the VRA does not permit American Indian and Alaska Native language speaking voters to receive less information than their English-speaking counterparts. The voters in these cases had been entitled to equality for 40 years, but they had to fight for nearly a decade in two federal court cases to get it.
Batson for Judges, Police Officers & Teachers: Lessons in Democracy From the Jury Box
Authors: Hawkins Stacy
Published: March 2022

In our representative democracy we guarantee equal participation for all, but we fall short of this promise in so many domains of our civic life. From the schoolhouse, to the jailhouse, to the courthouse, racial minorities are underrepresented among key public decision-makers, such as judges, police officers, and teachers. This gap between our aspirations for representative democracy and the reality that our judges, police officers, and teachers are often woefully under-representative of the racially diverse communities they serve leaves many citizens of color wanting for the democratic guarantee of equal participation. This critical failure of our democracy threatens to undermine the legitimacy of these important civic institutions. It deepens mistrust between minority communities and the justice system and exacerbates the failures of a public education system already lacking accountability to minority students.

But there is hope for rebuilding the trust, accountability and legitimacy of these civic institutions on behalf of minority citizens. There is one place where we have demonstrated a deeper commitment to our guarantee of democratic equality on behalf of minority citizens and exerted greater effort to that end than perhaps in any other domain of our civic life—the jury box. This paper recounts this important history and explores the political theory underlying the equal protection jurisprudence of jury selection. It then applies these lessons gleaned from the jury context to the constitutional defense of efforts to achieve greater racial diversity within the judiciary, law enforcement, and public education, all of which are as important to the legitimacy of our democracy today as the jury has been throughout American history.