bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of pulping therapy in deciduous teeth using chlorhephenicol tetracycline and Zinc oxide
Authors: DIAS Gisele Fernandes , TRAMONTIN Juciane , SANTOS Priscila Pelexate dos , ROSSI Fernando , RIGONI Mylena
Published: November 2021

ABSTRACT The technique using CTZ paste (chloramphenicol, tetracycline, and zinc oxide-eugenol) in the endodontic treatment of deciduous teeth is easy to perform and requires a single session, which is an advantage with child patients. The inexistence of clinical protocols with the use of CTZ and the multifactorial endodontic repair process in deciduous teeth evidence the need for research on the subject. This study aimed to suggest a clinical protocol model for the systematization and standardization of the endodontic treatment of deciduous teeth using CTZ paste. In the case report presented, after pulp therapy, clinical-radiographical follow-up was conducted after 30, 60, 90 and 180 days. It was concluded that using CTZ paste is a simple, viable, and satisfactory alternative. Future clinical studies are needed regarding CTZ use in child clinic with strong scientific evidence.
Psicólogos e o Uso das Mídias: Um Relato de Pesquisa
Authors: Miguel Raquel de Barros Pinto , Arndt Gilmara Joanol , Pires Jeferson Gervásio
Published: October 2021

Resumo O presente artigo objetiva compreender como profissionais de psicologia relacionam-se com as mídias. Para tanto, serão apresentados resultados de uma pesquisa realizada com psicólogos residentes no estado de Santa Catarina, a fim de verificar como eles lidam com as mídias, tanto como fonte de informação quanto como objeto e ferramenta de trabalho. Neste estudo, entende-se a mídia como um instrumento de mediação que contribui para o processo de constituição de subjetividades, sendo assim, um campo que merece atenção por parte da Psicologia. Os dados obtidos foram submetidos à análise estatística descritiva e as respostas às questões discursivas foram analisadas por meio do método da análise de conteúdo temática. Entre os resultados encontrados, a mídia figura como um tema raramente discutido durante a formação. Destaca-se, também, a centralidade da internet como meio para obtenção de informações, de modo que o celular é o dispositivo mais acessado para essa finalidade. Além disso, as redes sociais são utilizadas por 65% dos participantes para a troca e compartilhamento de informações profissionais. Tal fato aponta para a importância de pensar os novos modos de interação com a mídia, bem como o alcance das transformações que as mídias já têm operado. Frente a isso, surgem importantes questões éticas que merecem ser alvo de discussão por parte da Psicologia. Diante da escassez de discussões acerca da interface mídia e Psicologia, espera-se que esta pesquisa contribua para a ampliação desse debate e seus desdobramentos práticos.
Práticas Profissionais relacionadas às Demandas de Violência Sexual: Revisão da Literatura Nacional
Authors: Nunes Mykaella Cristina Antunes , Morais Normanda Araujo de
Published: October 2021

Resumo Este estudo teve como objetivo descrever as práticas profissionais relacionadas às demandas de violência sexual (VS) atendidas em diferentes contextos, como Conselho Tutelar, Centro de Referência Especializado de Assistência Social (CREAS) e hospital, a fim de investigar as características desses profissionais, o contexto de trabalho e as atividades desenvolvidas. Para tanto, realizou-se uma revisão narrativa da literatura nas bases de dados SciELO, PePSIC, IndexPsi, LILACS, BVS-Psi e Biblioteca Digital de Teses e Dissertações (BDTD) no período de janeiro a março de 2019. Duas categorias emergiram da análise: características pessoais e laborais dos profissionais e características do trabalho por eles desenvolvido. Os profissionais se destacaram por serem predominantemente do sexo feminino e por variarem quanto à faixa etária, apesar de este aspecto ter sido mais frequente no contexto dos hospitais. Entre os achados sobre o contexto de trabalho e as atividades desenvolvidas, evidenciou-se: o despreparo para o atendimento das demandas de abuso sexual, precárias condições de trabalho, falta de suporte técnico adequado para atuação com os casos de VS e uma insuficiente rede de apoio aos profissionais diante do trabalho exaustivo. Espera-se que este estudo contribua com o campo de pesquisas e intervenções voltadas para profissionais que trabalham com VS, uma vez que suas características pessoais e laborais se sobressaem em sua atuação e que eles são primordiais para a efetivação das políticas públicas e para o enfrentamento da VS.
Vivência Intersexos: Identidade, Autopercepção, Designação Sexual e Seus Desdobramentos
Authors: Tilio Rafael De , Haines Larissa Ferreira
Published: October 2021

Resumo A intersexualidade ainda é considerada uma deformidade patológica, bem como é alvo de intervenções cirúrgicas corretivas que visam enquadrar pessoas intersexos nos padrões binários de sexo, gênero e orientação sexual socialmente aceitos. Desse modo, o objetivo deste estudo foi analisar os sentidos produzidos por intersexos às intervenções cirúrgicas de designação sexual e suas consequências, ainda que não tenham realizado procedimentos cirúrgicos. Trata-se de uma pesquisa qualitativa de corte transversal cujos dados foram coletados por meio de um questionário online para intersexos e interessados de uma rede social-virtual. Oito intersexos participaram da pesquisa e as informações obtidas foram organizadas a partir de uma análise de conteúdo temática em quatro categorias: a) violação de direitos sobre a autodeterminação de sexo-gênero; b) tentativas de invisibilização da experiência de intersexos; c) despreparo da equipe de saúde de referência; e d) centralidade dos ativismos intersexos. Os resultados destacam que: as cirurgias são realizadas sem o consentimento dos intersexos e impactam sua subjetividade e relações sociais; há a reprodução de expectativas pelo intersexo, sua família e pelos profissionais da saúde em torno dos binarismos de sexo-gênero; há a necessidade dos ativismos políticos responderem às demandas dessa população. As constituições de sexo e de gênero ilustradas pelas cirurgias de designação sexual são produtos culturais pautados num sistema normativo binário e cisheterossexual que reproduz e perpetua discriminações, estigmas e violências. Assim, é papel da Psicologia contribuir para a compreensão dessa temática e para a incrementação de políticas públicas na saúde, educação e em assistência social para essa população.
Green roof evapotranspiration rates and stormwater control under subtropical climate: a case study in Brazil
Authors: Arboit Nathana Karina Swarowski , Tassi Rutineia , Liberalesso Tiago , Ceconi Denise Ester , Piccili Daniel Gustavo Allasia
Published: November 2021

ABSTRACT In this study a long-term field experiment evaluating evapotranspiration rates from irrigated and non-irrigated green roof modules, as well their impacts on stormwater control was accomplished. Six green roof modules (3 irrigated and 3 non-irrigated) vegetated with S. rupestre were monitored throughout 8 months in southern Brazil. Four non-vegetated modules (2 irrigated and 2 non-irrigated) were simultaneously assessed to understand the role of the vegetation in the whole process. The average evapotranspiration under water-stress (ETr) was 2.6 mm.day-1, while mean evapotranspiration under water-abundance (ETp) was 2.8 mm.day-1. Higher evapotranspiration rates were observed during summer, increasing the substrate storage capacity, although ETr amount along the seasons was very similar, mainly affected by climatic conditions. The long-term analysis showed that 47% of the total rainfall was converted into runoff, 21% was retained in the green roof modules and 32% was released through evapotranspiration, reinforcing the importance of vegetation as a mechanism for improving stormwater control benefits. The results of this research also allowed the establishment of a crop coefficient (Kc) time series, with a monthly average of 0.9 which permits the S. rupestre evapotranspiration to be preliminarily estimated by using equations developed for reference culture without the need of monitoring.
Análise da fluência por compressão no isolamento ao ruído de impacto de placas cimentícias com resíduo de EVA
Authors: Santos Fabianne Azevedo dos , Melo Aluísio Braz de , Pimentel Roberto Leal , Oliveira Maria Fernanda de
Published: November 2021

Resumo Os ruídos de impacto nas edificações multipavimentos são reduzidos com a execução de piso flutuante, caracterizado pela inclusão de um material resiliente entre o contrapiso e a laje. Nesse estudo, buscou-se avaliar a influência da compressão desse material no desempenho acústico do sistema. Dois materiais resilientes foram comparados, um produzido em laboratório (placas cimentícias com resíduos EVA -PEVA1,8), e outro comercial (manta recicladas de resíduos PET - MantaPET). As medições visando relacionar a rigidez dinâmica dos materiais e o desempenho acústico ocorreram em três anos. Adicionalmente, foram feitas estimativas de comportamento para dez anos, baseando-se em modelos teóricos e teste de fluência à compressão. Enquanto a PEVA1,8 apresentou redução em sua rigidez dinâmica (20,0MN/m³ para 17,7 MN/m³) ao longo do tempo, a MantaPET teve aumento nesse parâmetro (2,0 MN/m³ para 3,5 MN/m³), porém ambas mantiveram o desempenho intermediário (conforme NBR 15575-3:2013) ao ruído de impacto, com L’nT,w igual a 60 dB e 56 dB em um piso de testes respectivamente. As estimativas para dez anos indicaram deformação menor para PEVA1,8 (3,42%)comparativamente à MantaPET (20,15%) e confirmaram a tendência de variação distinta na rigidez dinâmica, sem comprometimento do desempenho acústico desses materiais.
Análise da representatividade e da densidade aparente como estimadoras do módulo de elasticidade da classe C60 da NBR7190:1997
Authors: Lahr Francisco Antonio Rocco , Chahud Eduardo , Arroyo Felipe Nascimento , Christoforo André Luis , Rodrigues Edson Fernando Castanheira , Almeida João Paulo Boff , Aquino Vinicius Borges de Moura
Published: November 2021

Resumo Para o dimensionamento correto de estruturas de madeira, as premissas da norma brasileira são de extrema valia como norte para os engenheiros estruturais, pois exibem valores padrão de resistência. Dessa forma, este estudo tem como objetivo analisar se o valor do módulo de elasticidade da classe C60 exibido na norma brasileira confere com os valores obtidos em ensaio de 23 espécies brasileiras, utilizando a metodologia Bootstrap com 1 milhão de simulações. Além disso, analisa-se, com modelos de regressão, se é possível estimar a propriedade de rigidez (E c0 ) dessas 23 espécies em função da densidade aparente. É possível concluir que a norma brasileira superestima o módulo de elasticidade das madeiras brasileiras, apresentado um valor quase 35% superior ao que realmente elas resistem, evidenciando que a norma necessita passar por revisão. Outro ponto é que os modelos de regressão não mostram significância, ou seja, com a densidade aparente não é possível estimar a propriedade de rigidez analisada.
Numerical analysis of reinforced concrete beam subject to pitting corrosion
Authors: Ramos Éverton Souza , Carrazedo Rogério
Published: November 2021

Abstract This paper presents a numerical study about the effects of chloride-induced corrosion on the service life of structures. A two-dimensional geometrically nonlinear mechanical model based on Finite Element Method (FEM) was developed for reinforced concrete structures. The corrosion initiation stage was evaluated by Fick's diffusion laws. The corrosion propagation was carried out by deterministic models based on Faraday's law. Pitting corrosion was simulated in the reinforcements by pit elements, distributed longitudinally on the steel rebars, which degrade the physical properties over time. The service life was determined by the crack width.Two parametric analyses were performed. In the first analysis, five models were created with a variablecover thickness and water/cement ratio (w/c). In the second analysis, the reduction in yield stress due to corrosion was considered.The results showed that the concrete cover thicknessand the w/c ratio significantly influence the service life. The reduction of the cover thickness from 30 mm to 25 mm resulted in 21.26% reduction in service life, whilethe increase in the w/c ratio from 0.50 to 0.55 caused 32.98% reduction in service life of the structural element analyzed.
Densities and viscosities of mixtures containing water, methanol and ethanol
Authors: Aliaj Fisnik Rr , Syla Naim , Vatovci Enis , Arbneshi Tahir , Dalipi Bashkim
Published: November 2021

The experimental densities and viscosities are reported in this paper for the binary mixtures: water + methanol, water + ethanol and methanol + ethanol over the entire composition range at 293.15 K and atmospheric pressure. From these experimental data, the excess molar volumes, V E, and deviations in viscosity, Δη, were derived and fitted to the Redlich–Kister polynomial to determine the adjustable fitting parameters and standard deviations. The variation of excess and deviation properties with composition has been interpreted in terms of the molecular interactions between the components of the mixtures and structural effects. Additionally, various correlation models were applied to estimate the viscosities of the mixtures to test their validity for the mixtures being studied.
Triallyl ammonium amphiphiles: self-assembly and complexation with bovine serum albumin
Authors: Kuznetsov Denis M , Kuznetsova Darya A , Gabdrakhmanov Dinar R , Lukashenko Svetlana S , Nikitin Yevgeniy N , Zakharova Lucia Ya
Published: November 2021

Currently, the investigation on the interaction of cationic surfactants with proteins attract the wide attention of researchers. Proteins participate in the majority of important biological processes; therefore, they are essential for a living organism. The addition of proteins to a surfactant solution can significantly modify the adsorption layer properties at liquid/fluid interfaces. In turn, surfactants can markedly affect the conformational behaviour of proteins. Therefore, in this study, the cationic amphiphiles triallyldodecylammonium bromide and triallyltetradecylammonium bromide have been synthesised. Their aggregation behaviour in an aqueous solution, solubilisation capacity towards the hydrophobic azo dye and complexation with bovine serum albumin (BSA) were evaluated. The lower homologue has demonstrated an unusual two-step aggregation behaviour, controlled morphology aggregates and various solubilisation capacities for Orange OT. The increase in the length of the hydrocarbon tail from dodecyl to tetradecyl has resulted in the disappearance of the second critical point and the enlargement of the particle size. Both of the amphiphiles that were investigated effectively interacted with BSA and were bound to the tryptophan amino acid residue of the protein. For surfactants/BSA systems, it was shown that by varying the length of the hydrophobic tail, the dominance of the various types of interactions can be achieved.
Advanced Tertiary Lymphoid Tissues in Protocol Biopsies are Associated with Progressive Graft Dysfunction in Kidney Transplant Recipients
Authors: Lee Yu Ho , Sato Yuki , Saito Mitsuru , Fukuma Shingo , Saito Masaya , Yamamoto Shigenori , Komatsuda Atsushi , Fujiyama Nobuhiro , Satoh Shigeru , Lee Sang-Ho , Boor Peter , Habuchi Tomonori , Floege Jürgen , Yanagita Motoko
Published: November 2021

Significance Statement

Tertiary lymphoid tissues (TLTs) are frequently found in transplanted kidneys, but their prevalence and clinical significance remain uncertain. Serial protocol kidney transplant biopsies without signs of rejection were collected and TLTs staged according to the presence of proliferating lymphocytes and follicular dendritic cells. TLTs rapidly developed within 1 month after kidney transplantation in approximately half of the 214 patients. Advanced TLTs, defined as the presence of follicular dendritic cells, were associated with progressive decline in graft function independent of interstitial inflammation score. These findings suggest advanced TLTs are strongly associated with late graft dysfunction, even in the absence of rejection.

Background

Tertiary lymphoid tissues (TLTs) are ectopic lymphoid tissues found in chronically inflamed organs. Although studies have documented TLT formation in transplanted kidneys, the clinical relevance of these TLTs remains controversial. We examined the effects of TLTs on future graft function using our histologic TLT maturity stages and the association between TLTs and Banff pathologic scores. We also analyzed the risk factors for the development of TLTs.

Methods

Serial protocol biopsy samples (0 hour, 1, 6, and 12 months) without rejection were retrospectively analyzed from 214 patients who underwent living donor kidney transplantation. TLTs were defined as lymphocyte aggregates with signs of proliferation and their stages were determined by the absence (stage I) or presence (stage II) of follicular dendritic cells.

Results

Only 4% of patients exhibited TLTs at the 0-hour biopsy. Prevalence increased to almost 50% at the 1-month biopsy, and then slightly further for 12 months. The proportion of advanced stage II TLTs increased gradually, reaching 19% at the 12-month biopsy. Presence of stage II TLTs was associated with higher risk of renal function decline after transplantation compared with patients with no TLT or stage I TLTs. Stage II TLTs were associated with more severe tubulitis and interstitial fibrosis/tubular atrophy at 12 months and predicted poorer graft function independently from the degree of interstitial inflammation. Pretransplantation rituximab treatment dramatically attenuated the development of stage II TLTs.

Conclusions

TLTs are commonly found in clinically stable transplanted kidneys. Advanced stage II TLTs are associated with progressive graft dysfunction, independent of interstitial inflammation.
Postmodern Metinlerden Okuduğunu Anlama Doğrudan ve Dolaylı İlişkiler Modeli
Authors: ESMER Barış , ULUSOY Mustafa
Published: October 2021

Bu araştırmada ilkokul 4. sınıfta öğrenim gören öğrencilerin postmodern metinleri anlamada sesli ve sessiz akıcı okuma, okur benlik algısı, okumaya adanmışlık ve metne yönelik tepki düzeyleri arasındaki doğrudan ve dolaylı ilişkileri test etmek amaçlanmıştır. Araştırmada okuduğunu anlama bağımlı; sesli/sessiz akıcı okuma ve okur benlik algısı bağımsız; okuyucu tepkileri ve okumaya adanmışlık ise bağımsız aracı değişken olarak ele alınmıştır. Araştırma ilişkisel tarama modelinde yürütülmüştür. Çalışma grubunu Ankara ilinde ilkokullarda öğrenim gören 349 ilkokul 4. sınıf öğrencisi oluşturmaktadır. Veriler Boşluk Doldurma Tekniği (BDT) testi, postmodern metin okuduğunu anlama testi, sessiz akıcı okuma testi, yanlış analiz envanteri, okuma prozodisi rubriği okur benlik algısı ölçeği ve okuyucu tepkileri yönergesi ile toplanmıştır. Veriler SPSS 22 ve AMOS 22 programları ile analiz edilmiştir. Araştırmada, postmodern metinlerden okuduğunu anlama yapısal regresyon modelinin mükemmel uyum değerlerine [(χ2[31] = 40,311; χ2/sd = 1,300, p = .122; GFI = ,98; AGFI = ,957; SRMR = ,0347; RMSEA = ,029; CFI = ,992; TLI = ,985; NFI = ,966)] sahip olduğu belirlenmiştir. Model; postmodern metinlerden okuduğunu anlama varyansın %81’ini açıklamaktadır. Bulgular, sessiz akıcı okuma postmodern metinlerden okuduğunu anlamanın, doğrudan, anlamlı ve en güçlü yordayıcısı olduğunu; sesli akıcı okumanın okumaya adanmışlık aracılığıyla okuduğunu anlamayı dolaylı olarak anlamlı şekilde yordadığını göstermektedir. Bunun yanı sıra okuyucu tepkilerinin sesli akıcı okuma ile okuduğunu anlama arasında tam ve anlamlı aracılık yaptığı; akıcı okuma, okumaya adanmışlık, okur benlik algısı ve okuyucu tepkileri birlikte okuduğunu anlama becerilerini geniş düzeyde etkilediği belirlenmiştir.
Innovación tecnológica para la mentoría social dirigida a personas inmigrantes y refugiadas
Authors: Sánchez-Aragón Anna , Belzunegui-Eraso Angel , Prieto-Flores Òscar , Royo-Obregón Aleix , Bogaarts Armand
Published: November 2021

El seguimiento y evaluación de las parejas en los programas de mentoría se han destacado como elementos de vital importancia para el desarrollo de un apoyo social efectivo en los jóvenes. Con el fin de mejorar los procedimientos que aseguren la calidad de las relaciones, este artículo presenta la experiencia de implementar una aplicación digital que, mediante un sistema de seguimiento y de sincronización de datos, ofrece información en tiempo real de los eventos clave relativos a todas las parejas. La aplicación Messagenes se probó con 131 mentores y 132 mentorados durante su participación en el proyecto Ruiseñor, un programa de mentoría basado en la comunidad cuyo objetivo es favorecer la inclusión social de menores de origen inmigrante. Los resultados demuestran los beneficios de utilizar las nuevas tecnologías para un registro sistemático de actividad que respalde la gestión de cada caso, logrando así mentorizar con éxito.
Hydra collecting for citizen scientists v2
Authors: Hyland Callen , Sladek Kimberly
Published: November 2021

The freshwater cnidarian Hydra has been a model system for regeneration and developmental biology for over 250 years, but much remains unknown about their biodiversity and global distribution. As a citizen scientist, you can contribute to our understanding of Hydra in the wild by becoming a "Hydra Hunter". All it takes is a few simple materials and a little patience. Collecting Hydra in the wild can be challenging. You will certainly not find them everywhere you look. Keep in mind that NOT finding Hydra is still useful information because this will help us understand the environmental factors that effect their distribution. Metadata submission form: https://forms.gle/cAZCiiRCyE922G5t5 Please contact chyland@sandiego.edu for more information or to receive a Hydra collecting kit. Hydra collecting kits were purchased with a grant to Kimberly Sladek from the University of San Diego Associated Students Government. Thank you to Rob Steele for helpful feedback on this protocol. References: Campbell, R. D. (1983). Hydra Collecting. In H. M. Lenhoff (Ed.). Hydra: Research Methods. New York: Springer Science + Business Media. Martínez, D. E., et al. (2010). Phylogeny and biogeography of Hydra (Cnidaria: Hydridae) using mitochondrial and nuclear DNA sequence. Molecular Phylogenetics and Evolution, 57, 403-410. doi:10.1016/j.ympev.2010.06.016
Serum 25-Hydroxy Vitamin D Level Does Not Reflect The Severity of Wart: A Cross-Sectional Study
Authors: ERTUĞRUL Gökşen , AKTAŞ Habibullah
Published: November 2021

Objective: Verruca vulgaris is a benign epithelial proliferative disease caused by human papilloma viruses. Topical and intralesional vitamin D applications are effective methods in the treatment of warts. However, the relationship between the disease and serum vitamin D levels is unclear. The correlation between the severity of the disease and serum 25-hydroxy vitamin D (25-OH vit D) levels have not been previously investigated. This study aimed to determine the relationship between serum 25-OH vit D levels and disease severity in patients with verruca vulgaris.
Material and Methods: Serum 25-OH vit D levels were evaluated in 40 patients with verruca vulgaris and 43 sex and age-matched healthy volunteers. Serum 25-OH vit D levels were compared by grouping the patients according to the severity and duration of verruca vulgaris disease Results: There was no significant difference in serum 25-OH vit D levels between verruca vulgaris patients and the control group (p=0.760). There was no significant difference between serum 25-OH vit D level, disease severity and disease duration in the verruca vulgaris group (p =0.102, p=0.257, respectively).
Conclusion: Serum 25-OH vit D level was not associated with verruca vulgaris. Serum 25-OH vit D levels are not related to disease severity and duration. Our data do not support vitamin D supplementation for the prevention or treatment of verruca vulgaris.
Ultrastructural Changes of the Digestive Tract of Pomacea canaliculata Exposed to Copper at Lethal Concentration
Authors: Dummee Vipawee , Kruatrachue Maleeya , Singhakaew Sombat , Tanhan Phanwimol
Published: November 2021

The present study was undertaken to elucidate the basis of cellular reactions and to verify the suitability of Pomacea canaliculata digestive tract ultrastructure as a biomarker for assessing the Cu pollution in freshwater environments. Two-month-old P. canaliculata were exposed to 96-h lethal concentration of Cu (0.15 mg L-1) for 96 h. Electron microscope investigations showed different alterations of organelles in the epithelial cells lining the esophagus and intestine. The most striking changes were damages to the mitochondria, RER, and nucleus typified by loss of cristae and degeneration of mitochondria; degranulation and fragmentation of RER. In nucleus, karyolysis and rupture of nuclear envelope were observed. These changes were attributed to membrane destabilization and increased membrane permeability to ions under the influence of toxicants or heavy metals. These findings indicate the possibility of using the P. canaliculata as biomonitor for Cu contamination in the freshwater environment.
Hydrogenated Liquid Natural Rubber for Compatibility Enhancement of Poly(lactic acid) and Natural Rubber Blends
Authors: Idris Mohamad Shahrul Fizree , Mohd Mustaffarizan Nurfarhana , M. Yusoff Siti Fairus
Published: November 2021

Non-catalytic hydrogenation of liquid natural rubber (LNR) via thermal decomposition of 2,4,6-trimethylbenzenesulfonylhydrazide (MSH) is reported in this study. Parameter studies of the hydrogenation reaction were performed by utilizing the combination of response surface methodology and central composite rotatable design (RSM/CCRD). The effects of each variable and the interaction between two variables (i.e. the MSH:LNR weight ratio and reaction time) were studied. Statistical analysis showed that the reaction time had significantly affected the hydrogenation percentage. A reduced quadratic model equation with the coefficient of determination (R2) value of 0.9875 was developed. The optimized condition as predicted by the software was compared with the experimental data, which deviated in only 0.67, hence indicating that this model was reliable and able to predict the hydrogenation percentage accurately. Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies were used to characterize the microstructure of LNR and hydrogenated liquid natural rubber (HLNR). HLNR was then used as compatibilizer to improve the miscibility of poly(lactic acid)/natural rubber blends. With an addition of 4% HLNR, the tensile strength and impact strength of the blends were slightly improved.
Device associated and surgical site infections, quality indicators in a tertiary care hospital: A 5 year study
Authors: AK Bilolikar , J Banerjee , KM Thomas
Published: November 2021

Purpose: In the present study, an attempt is made to understand the pattern of HAIs (Healthcare Associated Infections) [device associated infections such as Catheter Associated Urinary Tract Infection (CAUTI), Ventilator Associated Event (VAE), Central Line-Associated Bloodstream Infection (CLABSI) & Surgical Site Infection (SSI) by analyzing statistical tool of quality indicators] and to establish a bench mark for HAIs in a single hospital for a period of 5 years. Methods: The Microbiologist & ICN’s conduct rounds in ICU’s & wards and collect data for active surveillance. The details of culture positive samples are collected by Microbiologist from the laboratory for passive surveillance. The surveillance forms (active & passive) capture details of individual patients. The data collection forms are prepared and updated as per Centers for Disease Control and Prevention (CDC), National Healthcare Safety Network (NHSN) guidelines. The data is analyzed and presented in the meeting of Hospital Infection Control Committee meeting & discussed with clinicians. Results: The cumulative (5 years) CAUTI rate is 0.45, VAE is 2.42, CLABSI is 1.35 & SSI is 0.21. HAI rates were highest for VAE (2.42/1000 ventilator days), the next was CLABSI (1.35/1000 central line days), followed by CAUTI (0.45/1000 urinary catheter days). SSI rate was 0.21/ 100 surgeries. Conclusions: Before the study was started, the benchmark were 2 for CAUTI, 5.5 for VAE, 3 for CLABSI and 2 for SSI. We could able to reduce the baseline benchmark and established our new benchmark as 1 for CAUTI, 3 for VAE, 2 for CLABSI and 1 for SSI that can be used in developing HAI prevention policies by the institution.
Painless umbilical nodule in a nulliparous female – A clinical quandary
Authors: A Muralidhar , N Gaffoor , A Shetty
Published: November 2021

Background: Endometriosis is a well-known entity most often found within the pelvis and extra pelvic sites like skin, diaphragm, gastrointestinal tract and brain. Primary umbilical endometriosis is a rare form of cutaneous endometriosis, typically presenting as a hyperpigmented umbilical nodule with or without cyclical pain. We present a case of painless umbilical nodule with discolouration in a nulliparous woman, unsuspected clinically with the diagnosis being made primarily on cytology. Case report: A forty-year old female presented with a painless, brownish discoloured umbilical nodule, which was present since two months, was irreducible and had a negative cough impulse. She had no prior surgeries. Ultrasonography of abdomen and pelvis revealed a hypodense lesion of 2cm in the umbilicus, suggesting a possibility of umbilical granuloma. Uterus showed leiomyomata. Cytological evaluation of the umbilical nodule was suggestive of endometriosis. The patient underwent hysterectomy for leiomyomata and omphalectomy. Histopathology confirmed the diagnosis of umbilical endometriosis supported by the immunohistochemistry marker (CD10) being positive for endometrial stromal cells. The uterus had adenomyotic foci in addition to leiomyomata. Conclusion: The clinical distinction between primary umbilical endometriosis and other causes of umbilical nodules is challenging. Imaging modalities do not show pathognomonic signs in establishing this diagnosis. A definitive diagnosis is possible on cytology based on classical morphological features with histopathological examination being the gold standard diagnostic modality.
Primary advanced non-Hodgkin’s lymphoma of bladder with bilateral hydroureteronephrosis: A case report
Authors: MG Aditya , NS Raisa , A Pratik
Published: November 2021

Primary lymphoma of bladder is a very rare entity with a 0.2% incidence of all bladder malignancies. Secondary bladder involvement in malignant lymphoma is more common (10-25%) with preponderance in middle aged females. A non-Hodgkin lymphoma of the bladder can be managed conservatively without surgery and has a better prognosis. Because the presenting symptoms and radiological imaging cannot conclusively rule out a primary bladder lymphoma from other malignant causes, cystoscopy and biopsy with immune-histochemical staining is essential. We present to you a 72-year-old male with complaints of irritative lower urinary tract symptoms and asymptomatic microhematuria. On evaluation computerized tomography (CT) was s/o a large bladder wall mass with bilateral mild hydroureteronephrosis and enlarged pelvic lymphnodes. Cystoscopy and biopsy was done and the report came out to be a non-Hodgkins lymphoma. Whole body positron emission tomography (PET) scan was done which confirmed it to be a primary bladder NHL. Patient was treated with chemotherapy and is now doing well on follow up. We would like to share our experience in managing this case.
Complex PTSD: Psychotherapy of Prolonged Traumatization
Authors: Padun M.A.
Published: November 2021

The article considers a new diagnostic category — complex post-traumatic stress disorder (CPTSD), introduced into the International Classification of Diseases (ICD-11). Differences in the mechanism of influence of situational and prolonged trauma are analyzed. CPTSD diagnostic criteria are compared to PTSD and BPD (borderline personality disorder) symptoms. The term “disturbances in self-organi¬zation” is analyzed, which explains the main mechanism of the impact of complex trauma and includes emotional dysregulation, disturbances in self-perception and relationships. Psychotherapeutic approaches developed for PTSD were shown to be insufficient for the treatment of CPTSD. The article reviews an approach to CPSTD therapy based on the consensus of experts in the field of post-traumatic stress and its possible limitations are discussed. “Component based psychotherapy” — another approach to CPTSD therapy — is described. Specific features of psychotherapy for complex trauma are discussed.
The value of boric acid as an antiseptic in surgery
Authors: Tsimkhes I.
Published: October 2021

Dr E. Vertan (Zntralbl. F. Chir., No. 41, 1929), on the basis of clinical and experimental observations, finds that boric acid: 1) causing local hyperemia, increases the natural defenses of tissues and leads to the formation of rich healthy granulations, 2) in terms of osmotic qualities, it refers to intense fluids in relation to tissues, thereby facilitating the washing out of bacteria and toxins.
Myositis gummosa
Authors: Dmitriev A.
Published: October 2021

A. Jordan and Popova-Bloom (Derm. Zisch., Bd. 55, H. 2) as a result of their observations of 8 cases of this disease come to the following conclusions that m. g. can occur in different parts of the muscles, but more often affect m. sternocleidomastoideus, women are more likely to suffer (the authors have one man out of 8 cases), because this disease is observed in individuals with lues ignorata. M. g. is a manifestation of late syphilis. Diagnosis is fraught with great difficulties and is facilitated only by a positive R. W. The prognosis is favorable, for specific treatment quickly leads to a cure.
Pleurisy problem Neumann W. (Z. f. D. G. Tub. B. 36. H11).
Authors: Kramov I.
Published: October 2021

"The doctor should not be satisfied with the diagnosis of pleurisy and think only about removing the exudate the cause of the effusion must be clarified."
The state of lipid peroxidation and antioxidant system in patients with luteal phase insufficiency and pathogenetic therapy
Authors: Kayumova L. D. , Gilyazutdinova Z. Sh.
Published: October 2021

The state of peroxide oxidation of lipoids and antioxidant system in sterility in patients with lutein phase insufficiency is studied for the justification of pathogenetic therapy. It is noted that the intensity of peroxide oxidation of lipoids depends on the genesis of the given pathology. The effective pathogenetically justified, basically nonmedicamental acupunctural therapy is developed.
В. Berg. Eiweissbedarf und Mineralstoffwechsel bei einfachster Ernährung
Authors: Breitman M. Ya.
Published: October 2021

Recently, many issues of dietics have been revised. In this direction, a lot has been done by the author of the book being analyzed. His studies are distinguished by great originality, and if not in all respects they have already received general recognition, then in any case they are reckoned with everywhere.
A case of congenital hernia
Authors: Galperin S. I.
Published: October 2021

Joining the view of H. M. Nikolaev that every case of deformity that occurs should be studied within the limits of modern possibility, we decided to publish our case of congenital hernia with contents in the hernial sac of the liver, spleen and intestines, as a deformity that, judging by the literature available to us, is infrequent.
Using real-world transaction data to identify money laundering: Leveraging traditional regression and machine learning techniques
Authors: Harris Daniel A. , Pyndiura Kyla L. , Sturrock Shelby L. , Christensen Rebecca A.G.
Published: November 2021

Money laundering is a pervasive legal and economic problem that hides criminal activity. Identifying money laundering is a priority for both banks and governments, thus, machine learning algorithms have emerged as a possible strategy to detect suspicious financial activity within financial institutions. We used traditional regression and supervised machine learning techniques to identify bank customers at an increased risk of committing money laundering. Specifically, we assessed whether model performance differed across varying operationalizations of the outcome (e.g., multinomial vs. binary classification) and determined whether the inclusion of investigator-derived novel features (e.g., averages across existing features) could improve model performance. We received two proprietary datasets from Scotiabank, a large bank headquartered in Canada. The datasets included customer account information (N = 4,469) and customers’ monthly transaction histories (N = 2,827) from April 15, 2019 to April 15, 2020. We implemented traditional logistic regression, logistic regression with LASSO regularization (LASSO), K-nearest neighbours (KNN), and extreme gradient boosted models (XGBoost). Results indicated that traditional logistic regression with a binary outcome, conducted with investigator-derived novel features, performed the best with an F1 score of 0.79 and accuracy of 0.72. Models with a binary outcome had higher accuracy than the multinomial models, but the F1 scores yielded mixed results. For KNN and XGBoost, we observed little change or worsening performance after the introduction of the investigator-derived novel features. However, the investigator-derived novel features improved model performance for LASSO and traditional logistic regression. Our findings demonstrate that investigators should consider different operationalizations of the outcome, where possible, and include novel features derived from existing features to potentially improve the detection of customers at risk of committing money laundering.
Impact of Foliar-Applied Dormancy-Breaking Chemicals on Budburst and Metabolic Changes in Chemical Constituents of Leaves and Fruits of Malus sylvestris "Ein Shamer"
Authors: El-Yazal Mohamed A. Seif
Published: November 2021

This study was carried out during the two successive seasons of 2016 and 2017 to investigate the impact of dormex, dormex plus mineral oil, dormex plus potassium nitrate, dormex plus calcium nitrate and dormex plus thiourea on bud break, growth, yield and some chemical constituents of Malus sylvestris "Ein Shamer". The trees were grown in loamy sand soil, and sprayed with six treatments (dormex (4%), (dormex (2%) plus mineral oil (2.5%),(dormex (2%) plus potassium nitrate (4%),(dormex (2%) plus calcium nitrate (4%) and (dormex (2%) plus thiourea (1%) and control. Generally, it was found that all studied growth parameters , date of flower bud break, percentage of bud break, fruit-setting ,fruit weight, fruit size, fruit number/tree, yield/tree (kg) and some chemical constituents of leaves (total chlorophyll ,total carbohydrates, total protein, nitrogen, phosphorous and potassium contents) and some chemical constituents of fruits (total soluble solids(T.S.S.), T.S.S/ acid ratio, vitamin C, water content %, total free amino acids, total carbohydrates, total sugars and reducing sugars) were increased with the application of the different treatments. The best results were obtained from the treatments of dormex at 4% followed by (dormex (2%) plus mineral oil (2.5%). On the contrary, the same treatments decreased total acidity and total phenols in fruits as compared to the control. It could be recommended to use dormex at 4% and (dormex (2%) plus mineral oil (2.5%) for improving bud break, growth, yield and chemical constituents of apple trees or fruits.
Statement of absorbing Mur boundary conditions of the first order of accuracy for solving problems of electrodynamics by the method of finite differences in the time domain
Authors: Borodulin R.Yu. , Lukyanov N.O.
Published: November 2021

Problem statement. The accuracy and convergence of calculations for solving problems of electrodynamics by the finite difference method in the time domain significantly depends on the correct choice of parameters and the correct setting of the absorbing boundary conditions (ABC). Two main types of absorbing boundary conditions are known: Mur ABC; Beranger ABC. It is believed that the Mur ABC is less effective at absorbing spherical waves than the Beranger ABC, but they do not require the introduction of additional parameters (the so-called "Beranger fields"), which simplifies the implementation of program code and saves computer RAM. Calculations have shown that the efficiency of the Mur ABC will depend on their thickness. On the one hand, an increase in the thickness of the ABC layers will lead to an increase in the accuracy of calculations, on the other hand, to an increase in the size of the calculation area and, as a result, an increase in RAM. The problem arises of determining the criterion for evaluating the efficiency of ABC to determine their optimal thickness. Goal. Identification of new factors that make it possible to use the Mur ABC as efficiently as the Beranger ABC, while significantly saving computer resources. Result. The expressions for the ABC are presented, taking into account the interaction of all components of the electromagnetic field within a single cell of the FDTD. Calculations of the reflection coefficient – a criterion for evaluating the efficiency of the ABC, are presented. Practical significance. Calculations are presented that allow automating the selection of ABC parameters for their stable operation in solving electrodynamic problems.
Underground meter wave antenna based on a patch structure with a metamaterial substrate
Authors: Ivanov A.V. , Nikolaev V.I. , Pasternak Yu.G. , Pendyurin V.A.
Published: November 2021

The antenna devices of the stationary radio communication centers of the old park no longer fully meet modern requirements. This applies to the extensive structure of receiving radio centers with expensive and bulky antenna fields. Maintaining such facilities in working condition, reconstruction and modernization is a very expensive and time-consuming task. Thus, the search for new technical solutions in the development of technologically technologically small antennas (EMA), characterized by reduced overall dimensions and cost, the use of which will increase the reliability of the radio reception centers of decameter (DCMW), meter (MW) waves, due to the hidden underground placement of antennas, is an urgent scientific and technical task. A compact, technological design of the patch antenna type (PA) with a metamaterial substrate (MMS) is proposed as a buried antenna of the MV range. By choosing this type and parameters of the antenna device, the main goal was achieved: to provide a minimal size of the antenna device, the possibility of performing the assembly of the finished product in a full technological cycle in indoor conditions (factory conditions), at the same time, there was an understanding that this design is an electrically small antenna (ESA) for the MV range. Therefore, this antenna has a high Q-factor therefore, it will be narrow-band. The problem is solved by introducing an MMS patch antenna into the structure, implemented on 4 resonators, each of which is a "fungus" with a flat square-shaped cap, the center of which is shorted to the underlying surface of the antenna by a copper wire. The use of an MMS located between the strip and the underlying surface made it possible to reduce the size of the side of the strip to m, which makes it possible to reduce the overall dimensions of the antenna device, reduce the cost of its design and increase the strength of the structure. The effective refractive index of the metamaterial structure was about 3, which corresponds to the use of a substrate with a permittivity of 9. The numerical experiment of the patch antenna model with MMS confirmed the possibility of ensuring good alignment with a load of 50 ohms, allowed us to expect a gain of about 6 dB from the current antenna sample and a radiation pattern width of at least 90 degrees. The results of a full-scale experiment in the laboratory and field tests on the current model of the patch antenna made it possible to verify the adequacy of the developed model of the antenna device and its operability.
A new approach to the development of perspective compact frequency multipliers of the subterahertz and terahertz bands for on-board electronic equipment
Authors: Baiburin V.B. , Rozov A.S. , Khorovodova N.Yu. , Ershov A.S. , Nikiforov A.A.
Published: November 2021

Currently, the increasing interest of researchers is attracted by the theoretical and practical problems of mastering the sub-terahertz and terahertz frequency range. Electronic devices operating in these ranges find effective applications in various fields of science and technology: aerospace equipment, security systems, spectroscopy, medicine, biology and many others. The purpose of this work is to focus on a frequency multiplication device that allows using basic sources of relatively low frequency generation to enter the terahertz frequency range. The results of recent years obtained both on the basis of solid-state effects and with the help of vacuum electronics, in particular, magnetron-type devices, which are characterized by compactness, high resistance to radiation loads, mechanical influences, which is important for on-board equipment, are considered. It is known that at high frequencies, vacuum devices require super-precision manufacturing of decelerating systems. This is essentially the main difficulty. The article proposes a new approach based on the hypothesis of P.L. Kapitsa, which allows to significantly simplify the anode structure of a magnetron multiplier with an acceptable level of output parameters. The achievements of recent years in the field of creating sub-terahertz and terahertz frequency multipliers, mainly for on-board equipment of mobile platforms, taking into account the requirements of aerospace systems, first of all, are noted.