bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Internal Vibration Law and Vibration Reduction of Xiaoxiku Tunnel Blasting
Authors: Li Sheng-Lin , Liang Shu-Feng , Lu Jia-Wei
Published: April 2022

Efficient and economical drilling and blasting method is widely used in tunnel excavation projects, but the vibration problem caused cannot be ignored. The blasting vibration in the near area directly damages the surrounding rock and supporting structure, and the vibration in the middle and far area affects the stability of the surrounding rock, the primary support, and even the secondary lining. Based on the blasting excavation of Xiaoxiku tunnel, blasting vibration tests were carried out. In addition, the measured data were analyzed by using nonlinear regression and Fourier transform of Sadowski formula. According to the interference vibration reduction method, the blasting vibration of group holes is analyzed, and the results provide a reference for blasting design optimization of Xiaoxiku tunnel or similar soft rock tunnel. The results showed that the blasting vibration test data showed that the peak vibration velocity generated by the blasting of cut hole is the largest. Based on the measured vibration waveform of single-hole blasting, MATLAB software is used to carry out superposition operation, so as to determine the best delay time of single-hole continuous blasting vibration reduction, and the value is calculated as 7 ms. According to the superposition operation results, the experiments of the cut area under different delay intervals were carried out. The measurement vibration waveform showed that the peak vibration velocity is the minimum when the delay interval is 7 ms. The actual measurement results are the same as the calculation results. The measured blasting waveform distribution is relatively uniform, and the vibration duration is moderate. The vibration speed decreases, while the main frequency increases.
Application of Wireless Sensor Network Technology Using Intelligent Algorithm in Mismatch Detection of Photovoltaic Power Generation
Authors: Xie Nan , Chen Yao , He Ping
Published: April 2022

The paper was aimed at ensuring the stable operation of the photovoltaic power generation system (PVPGS) and improving the accuracy of automatic mismatch detection. Consequently, this paper presents a PVPGS-oriented mismatch detection system based on wireless sensing technology (WSN). Firstly, the photovoltaic array (PVA) is constructed using a microcontroller, power management chip, nRF24L01, temperature sensor, voltage, and current sensor. Then, a fault detection and localization (FDL) scheme based on the Hampel algorithm is optimized, and Matlab/Simulink implements the PVA simulation model. Finally, several typical mismatch faults are simulated to verify the feasibility of the proposed FDL scheme using the measured voltage and current data. The empirical findings corroborate that the proposed FDL scheme can automatically and regularly collect photovoltaic (PV) electrical characteristic data and quickly and accurately identify and position a mismatch. In the case of a PVA open-circuit fault, the output current loss of the PVA is equal to the sum of the current of the open-circuit fault string in the array during normal operation. When the PVA is short-circuited, the PVA output voltage loss equals the sum of the output voltages of the faulty components in the most serious fault string under normal operation. Overall, the classification accuracy of the proposed FDL scheme is 97.556%. Lastly, the experiment reveals that the classification accuracy of the proposed FDL scheme is 100% for array aging, shadow, and the open circuit. Therefore, the research proposal has a good application prospect.
Research Status, Hotspots, and Evolution Trend of Decision-Making in Marine Management Using VOSviewer and CiteSpace
Authors: Yang Yunfei , Qu Guifei , Hua Lianlian
Published: April 2022

Clarifying the research status, hotspots, and evolution trend of the field of research on decision-making in marine management has certain reference significance for the scholars and decision makers in the field of decision-making in marine management at the theoretical and practical levels. In view of this, this study used 443 pieces of literature retrieved from the Web of Science from 2002 to 2021 as the data source. It adopted the methods of statistical analysis and bibliometric analysis to conduct knowledge mapping visualization analysis in the field of research on decision-making in marine management. The results show that ①there is a high correlation between the level of economic development among countries/regions and the number of publications, and the geographical distribution is closely related to the intensity of research cooperation; ②the research organizations show the characteristics of the diversified distribution. Moreover, although there is no noticeable difference in scientific research output among research organizations, influential research organizations such as NOAA, The Nature Conservancy, and so forth have emerged; ③the author groups as a whole do not show a high cooperation intensity, but there are also scholars with high cooperation intensity within the internal group and other research groups; ④the research hotspots distribution in the field of decision-making in marine management is relatively extensive and belongs to a multidimensional and multiperspective systematic research. Furthermore, the research focuses on subdivision research hotspots mainly involving ecosystem services, knowledge exchange, decision analysis, multicriteria decision, decision support, fisheries management, specific mathematical models and theories, etc; ⑤from the perspective of the evolution trend, it can also be found that different clusters show the evolution trend of overlapping common features and individual features.
A ResNet-LSTM Based Credit Scoring Approach for Imbalanced Data
Authors: Zhang Anqin , Peng Baicheng , Chen Jingjing , Liu Qingfu , Jiang Shibo , Zhou Youmei
Published: April 2022

Detecting potential defaults or bad debt with limited information has become a huge challenge. The main difficulties faced by the credit scoring are sample imbalance and poor classification performance. For this reason, we first proposed the auxiliary conditional tabular generative adversarial network (ACTGAN) to generate sufficient default transaction samples from the original data, then we designed a model based on ResNet-LSTM used for feature extraction, which includes two submodels of ResNet and LSTM to extract static local features and dynamic temporal features from the original data, respectively. After that, a spatiotemporal attention module is added to calculate the importance of the two submodel’s output in order to extract more critical information. Finally, we applied the focus loss function into the XGBoost classifier to improve the probability output of the credit default risk. We verified the designed credit scoring model in two real-world datasets. The experimental results showed that ACTGAN can effectively solve the problem of data imbalance. The ResNet-LSTM+XGBoost model for classification is better than other traditional algorithms in F1 value, AUC, and KS value, which proves the effectiveness and portability of this model in the field of credit scoring.
Statistics and Analysis of the Relationship between Strength and Age of Coral Concrete
Authors: Liang Bo , Rao Lan , Zheng Yun
Published: April 2022

In this study, based on the experimental results of this study and from the previous research, it is concluded that the compressive strength of coral concrete at 3, 7, 14, 21, 60, and 90 days reaches about 71%, 84%, 92%, 96%, 104%, and 110% of that at 28 days, respectively, indicating that the early strength development of coral concrete is significantly faster than that of ordinary concrete but slower in the later stage. A new model to characterize the strength‐age relationship of coral concrete is proposed in this study, which is in good agreement with the experimental result, but for the long‐term strength prediction of coral concrete in actual engineering, it is recommended to adjust the prediction results according to the environment and working conditions of coral concrete, and the adjustment coefficient could be approximately taken as 0.88. In addition, the effects of water‐binder ratio (w/b), total dosage of cementitious materials (b), supplementary cementitious material (SCM) content, and aggregate properties, on the age strength development of coral concrete are studied.
Splitting Energy of Transmit Power Serving Grouping Users in Full-Duplex Networks under Imperfect Hardware
Authors: Nguyen Nhan Duc , Le Anh-Tu , Do Dinh-Thuan
Published: April 2022

In this paper, we consider a wireless system providing power allocation fairness for grouping users by conducting a non-orthogonal multiple access (NOMA). In particular, a rigorous analysis is performed to evaluate performance of destination in a downlink of wireless system. With advances of NOMA, the user grouping scheme allows users to be shared the same frequency/power domain, and hence, fairness is guaranteed. In this regard, we focus on evaluation of the performance of a cell-center user and a cell-edge user in dedicated group. To enable forwarding function at cell-center user, we require the assistance of a full-duplex– (FD–) based relay to serve the cell-edge user. These users are assigned a fixed power allocation scheme. To characterize system performance, the closed-form expressions of the outage probability are computed for two users. To generalize channels in such system, Nakagami-m fading channels could be adopted to achieve complete theoretical analysis. Furthermore, we provide some comparisons of such FD NOMA under the impact of hardware impairment. We find that a significant improvement of outage probability can be achieved when the signal-to-noise ratio (SNR) at the source is high. Numerical results illustrate that both the analytical outage probability of the central user and the cell-edge user match the simulation results.
NR2F1 Is a Barrier to Dissemination of Early-Stage Breast Cancer Cells
Authors: Rodriguez-Tirado Carolina , Kale Nupura , Carlini Maria J. , Shrivastava Nitisha , Rodrigues Alcina A. , Khalil Bassem D. , Bravo-Cordero Jose Javier , Hong Yan , Alexander Melissa , Ji Jiayi , Behbod Fariba , Sosa Maria Soledad
Published: April 2022

Cancer cells can disseminate during very early and sometimes asymptomatic stages of tumor progression. Though biological barriers to tumorigenesis have been identified and characterized, the mechanisms that limit early dissemination remain largely unknown. We report here that the orphan nuclear receptor nuclear receptor subfamily 2, group F, member 1 (NR2F1)/COUP-TF1 serves as a barrier to early dissemination. NR2F1 expression was decreased in patient ductal carcinoma in situ (DCIS) samples. High-resolution intravital imaging of HER2+ early-stage cancer cells revealed that loss of function of NR2F1 increased in vivo dissemination and was accompanied by decreased E-cadherin expression, activation of wingless-type MMTV integration site family, member 1 (WNT)-dependent β-catenin signaling, disorganized laminin 5 deposition, and increased expression of epithelial–mesenchymal transition (EMT) genes such as twist basic helix-loop-helix transcription factor 1 (TWIST1), zinc finger E-box binding homeobox 1 (ZEB1), and paired related homeobox 1 (PRRX1). Furthermore, downregulation of NR2F1 promoted a hybrid luminal/basal phenotype. NR2F1 expression was positively regulated by p38α signaling and repressed by HER2 and WNT4 pathways. Finally, early cancer cells with NR2F1LOW/PRRX1HIGH staining were observed in DCIS samples. Together, these findings reveal the existence of an inhibitory mechanism of dissemination regulated by NR2F1 in early-stage breast cancer cells.

Significance:

During early stages of breast cancer progression, HER2-mediated suppression of NR2F1 promotes dissemination by inducing EMT and a hybrid luminal/basal-like program.
A Genome-Wide Association Study on Abdominal Adiposity-Related Traits in Adult Korean Men
Authors: Kim Hyun-Jin , Son Ho-young , Sung Joohon , Yun Jae Moon , Kwon Hyuktae , Cho Belong , Kim Jong-Il , Park Jin-Ho
Published: April 2022

Introduction: Although previous genome-wide association studies (GWASs) have identified genetic susceptibility loci for abdominal adiposity, GWASs on Asian samples remain scarce. Therefore, we performed a GWAS for abdominal adipose tissue depots in a Korean population. Methods: A total of 1,937 Korean men were included in the study. Areas of abdominal fat were quantified by computed tomography. We performed a GWAS analysis under an additive model, and a replication study was conducted on 480 additional Korean adult men. Results: In the discovery step, we identified a total of 10 single-nucleotide polymorphisms (SNPs) associated with adiposity indicators (p < 1 × 10−5). The top SNP, rs1028014, for visceral adipose tissue (VAT) was located in the ZMAT4 gene and remained significant after adjustment for body mass index (BMI). Three additional SNPs were also associated with VAT-adj-BMI and located within the SLC26A10, FAM155A, and COL4A1-COL4A2 genes, respectively. In addition, we identified a SNP (rs4668224) of the MYO3B gene for visceral-to-subcutaneous fat ratio. For subcutaneous adipose tissue and total adipose tissue, two (rs6585735 and rs363527) and three SNPs (rs1487892, rs9357565, and rs1985358) were found, respectively. Overall, eight SNPs were used in the replication study; however, none of the SNPs reached our level of significance for replication (p < 0.0063). Nevertheless, rs4773144 of COL4A1-COL4A2 for VAT-adj-BMI was the most interesting SNP identified in previous GWASs for coronary artery disease (based on the same risk allele “G”), along with functional effects. Conclusion: This study suggests for the first time that an SNP (rs4773144) of COL4A1-COL4A2 may contribute to the increase in VAT level, especially in adult Korean men.
Aprendizajes transformadores: experiencias de jóvenes en un circo social de Buenos Aires
Authors: Tapia Silvia Alejandra
Published: April 2022

(analítico)La relación entre arte, jóvenes e inclusión social es estudiada al indagar las vinculaciones entre el aprendizaje de técnicas circenses de jóvenes que asisten a un circo social situado en barrios vulnerables de Buenos Aires (Argentina) y los objetivos de inclusión y transformación que estos circos proponen. Con una estrategia cualitativa: relatos biográficos y observaciones participantes, siguiendo los lineamientos de la perspectiva constructivista de la teoría fundamentada.En los resultados se advierte que el circo social genera experiencias de aprendizaje transformadoras producidas desde la articulación entre formas de construir lugares de entrenamiento y de circular por estos, vínculos de reconocimiento basados en la confianza y en el respeto, respecto de otros y de sí mismos/as, y de integración con objetos que vislumbran los cuerpos/emociones y sus capacidades.
Palabras clave: Juventud; proceso de aprendizaje; circo; transformación social.
Interacciones vinculares mamá-bebé: impacto de las creencias maternas
Authors: Faas Ana Eugenia , Codosea Lorena Elsa , Curti Julieta , Ferrero María José , Herrero María Inés , Marasca Roxana , Nanzer Carolina , Polantonio Patricia , Rabinovich Diana
Published: April 2022

(analítico)Las ideas parentales sobre el desarrollo infantil pueden guiarse por falsas creencias e influir en las interacciones tempranas. En este trabajo se estudian las ideas e interacciones en la relación mamá adolescente- bebé. La maternidad adolescente implica riesgos vinculares, llegando incluso hasta el maltrato. Se clasificó a las madres en modernas (activas) o tradicionales (pasivas), según la estimulación y acompañamiento del niño/a. Se evaluaron 145 díadas en los primeros dos años de vida. Los resultados indican peores interacciones en las madres tradicionales, siendo significativos en los contactos cara a cara, las interacciones táctiles y la función de sostén materna. El patrón de apego también se presenta más inseguro. Estos resultados permiten organizar programas de capacitación parental apuntando a la deconstrucción de ideas erróneas sobre el desarrollo y orientando interacciones saludables.
Palabras clave: Madre; joven; ideología; primera infancia; afectividad.
A busca ecumênica de apoio aos adeptos dos cultos afro-brasileiros vitimados por intolerância
Authors: Souza André Ricardo de
Published: April 2022

O artigo aborda a intolerância religiosa sofrida por adeptos dos cultos afro-brasileiros e a busca de enfrentamento dessa realidade por parte de quatro organizações ecumênicas com relevância nacional. Elaborado com base em pesquisa de campo e consulta a documentos, o texto aponta dados da escalada agressiva no meio evangélico em relação a tais indivíduos, algo que problematiza a ideia de pluralismo religioso no Brasil em face do pequeno contingente não cristão e da intimidação à liberdade de culto. As entidades pesquisadas buscam, de algum modo, alargar a compreensão do ecumenismo para além das igrejas cristãs, ressaltando a necessidade de defesa dos direitos humanos.
O virtual, a atualização e o tempo presente em Émile Benveniste: uma leitura sobre o signo “vazio”
Authors: Giacomini Marcelo Corrêa
Published: April 2022

Este trabalho objetiva retomar a relação entre a temporalidade da instância discursiva e a caracterização de não virtualidade do pronome pessoal, ou “signo vazio”, em Émile Benveniste. A hipótese principal é que o pronome pessoal, que apenas pode ser considerado enquanto atualização, não pressupõe a representação do tempo presente, proposto por Benveniste como forma originária e exclusiva da enunciação. A virtualidade do signo, prevista por Benveniste, torna-se um modo de explicar a permanência ou “eternidade” do tempo presente, diante da condição singular de cada enunciação, que se repete frente a toda nova apropriação da língua pelo locutor.
O percurso passional de Elena: da esperança à melancolia
Authors: Lopes Joyce do Nascimento
Published: April 2022

Nossa análise tem como objeto de significação o documentário brasileiro Elena (2012), dirigido pela mineira Petra Costa. A obra aborda, de forma bastante pessoal, a relação da diretora com a memória da irmã, Elena, que comete suicídio aos vinte anos, no início da década de 1990. Trata-se de um texto fílmico no qual se sobressaem os estados de alma, as paixões. Somos envolvidos pela jornada afetiva de cada personagem. Assim, detendo-nos apenas no plano do conteúdo, pretendemos evidenciar o percurso passional de Elena, com ênfase na melancolia, que tem uma posição central nesta investigação, visto ser o estado que domina o sujeito até o fim de seus dias. Valemo-nos, pois, da Semiótica Francesa, levando em conta os avanços teóricos propostos por Zilberberg, que nos traz a noção de tensividade. Utilizamos também as formulações de Freud no ensaio Luto e melancolia (2011 [1914]), tendo em vista suas contribuições pertinentes aos nossos objetivos.
O relato de Flora Tristan: tensão entre o ser e o parecer de uma pária
Authors: Pastorini Vanessa
Published: April 2022

Neste artigo, apresentaremos o relato de viagem de Flora Tristan, no seu livro Peregrinações de uma pária (2000 [1838]). O objetivo consiste em apreender, a partir dos aspectos sensíveis da obra, o seu projeto enunciativo e, mais especificamente, como se dá a construção do seu arco tensivo (MANCINI, 2020). Trata-se de um esforço em conceber os preconceitos relacionados ao ser mulher, sobretudo no que se refere à esfera matrimonial, compreendidos a partir do ponto de vista da militante. O uso da semiótica tensiva nos permitirá refletir sobre os momentos átonos e tônicos do relato de uma mulher do século XIX, consciente da sua situação: sem direito a se divorciar do marido, à herança paterna, à liberdade. Destacamos, sobretudo, a compreensão das estratégias sensíveis para levar o enunciatário proposto a se sensibilizar com as mazelas enfrentadas por aquela que se encontrava à margem da sociedade, nos baseando, ademais, nos graus de veridicção e na noção de belo gesto. Eis o relato de uma pária para a sociedade, sem a autorização de viver como o seu verdadeiro ser.
Um par incerto?
Authors: Zilberberg Claude
Published: April 2022

O presente artigo aborda a questão da imanência sem separá-la do par original do qual participa não só na filosofia, mas também na semiótica, e desenvolve a seguinte hipótese: a transcendência é o limite da imanência admitida, o que podemos reformular de duas maneiras. A primeira, positiva e enunciada a partir da perspectiva da transcendência: esta seria o espaço que abriga as dificuldades não resolvidas ou mal resolvidas da imanência. A segunda, negativa e enunciada a partir da perspectiva da imanência: diríamos então que a falta de controle, por exemplo, da afetividade transfere seus rejeitos ao espaço aberto da transcendência. A relação imanência/transcendência não é outra coisa senão uma alternância dependente de outra relação mais profunda que a sustenta e que é concebida a partir da teoria do valor em semiótica: valores de absoluto/valores de universo. Ao fim e ao cabo, é o sujeito que avalia, mensura e relativiza o domínio da transcendência em face da imanência; por meio das operações analíticas desta última, as dimensões da transcendência, seja pela intensidade, seja pela extensidade, avançam e retrocedem em sua capacidade de serem compreendidas.
Autonomia, pluralidade e razão pública
Authors: O'Neill Onora
Published: April 2022

Pretendo oferecer uma leitura da concepção kantiana de autonomia, distingui-la de algumas outras concepções que recebem o nome de autonomia e propor algumas razões para pensar que a autonomia no sentido que Kant atribui ao termo é decerto tanto uma concepção de razão prática como também fundamental para a moralidade. A linha de pensamento que seguirei é, espero, compatível com as afirmações queSchneewind faz sobre a posição de Kant e, ao mesmo tempo, uma ampliação que favorece essas afirmações.
Crença, razão e entendimento segundo o realismo de F. H. Jacobi
Authors: Leite Thiago Magalhães
Published: April 2022

F. H. Jacobi permanece uma figura controversa na história da filosofia. Mesmo substancialmente presente nos debates que seguiram à publicação da Crítica da Razão Pura, sendo um dos mais radicais críticos da Crítica, Jacobi segue como uma figura de fundo, como se o seu ponto de vista não viesse de um corpo filosófico próprio. Entretanto, um olhar atento a suas obras mostra o contrário. Razão e entendimento, lógica e os fundamentos da ciência, são reconsiderados sob uma nova luz: a crença é a base de todo conhecimento, e nesse sentido a própria ciência é um saber de “segunda mão”. Gostaríamos aqui de apresentar tais conceitos e mostrar a maneira pela qual eles se voltam contra o idealismo crítico.
Fantasia, analogia e narcisismo: um argumento contra a tradução de “Trieb” por “instinto”
Authors: Silveira Léa
Published: April 2022

O artigo discute uma passagem do texto “O inconsciente” – aquela em que Freud traça uma analogia entre as fantasias e os “instintos dos animais” – apontando-a como algo decisivo para o debate sobre a tradução do termo Trieb. Sua análise resulta na defesa da impossibilidade de vertê-lo por “instinto”, acenando para a impossibilidade correlata de se proceder a uma redução dos principais conceitos freudianos à biologia. Se a atitude de criticar tal redução foi por vezes caracterizada como narcisismo, será necessário constatar que tal denúncia se vale de um conceito concebível apenas quando já se admitiu a distância entre natureza e cultura.
Levantamento moral e intelectual dos homens de cor: o caso do jornal O Exemplo, Porto Alegre, RS (1892-1905)
Authors: Sousa Ricardo Costa de
Published: April 2022

O jornal O Exemplo (1892-1905) é documento histórico, cultural e político de uma época. Ao partir dessa afirmativa, o objetivo central deste artigo circunscreve em demonstrar os discursos inscritos no jornal O Exemplo em prol do levantamento moral e intelectual dos homens de cor, no estado do Rio Grande do Sul. O mesmo se assenta no campo da História da Imprensa e da História da Educação, e contou com o aporte teórico e metodológico da História Cultural. A pesquisa indicou que a sociedade tem uma dívida histórica com os homens de cor, em particular, no que toca à instrução e conclama a todas as pessoas a empreender uma cruzada em prol do levantamento moral e intelectual da classe.
Aquém e além-mar: “cartas do Rio de Janeiro” de Jaime Vítor
Authors: Azevedo Silvia Maria
Published: April 2022

As cartas publicadas na imprensa luso-brasileira ao longo do século XIX e início do XX constituíram prática largamente empregada pelos jornalistas-correspondentes dos dois lados do Atlântico. Jaime Vítor, um dos diretores da Brasil-Portugal (1899-1914), fez uso dessa modalidade discursiva nas Cartas do Rio de Janeiro, correspondência aberta enviada aos leitores da revista monarquista, num momento em que a República fora instaurada em Portugal. O objetivo do artigo é propor uma reflexão acerca desse gênero textual voltado à comunicação num espaço público, tendo em vista o propósito da viagem de Jaime Vítor à Capital Federal, em 1912, de estreitar os laços entre Brasil e Portugal, exposto nas cartas que privilegiam a voz do remetente.
Imprensa de língua estrangeira e identidades: a lusofonia nos jornais de língua portuguesa de Macau
Authors: Escudero Camila
Published: April 2022

A imprensa de língua estrangeira costuma se desenvolver em territórios marcados por processos de colonização e/ou migração. Assim, o presente trabalho propõe verificar de que maneira jornais de Língua Portuguesa que circulam em Macau favorecem a identidade lusófona. De abordagem qualitativa, a técnica de pesquisa utilizada é a análise de conteúdo de O Clarim e Plataforma de Macau. Entre os principais resultados, destaca-se que ambos os títulos revelaram um favorecimento da identidade lusófona que remete à ideia de origem comum sustentada por meio de práticas comunicacionais interculturais, frutos de um modelo de organização social que envolve uma rede de fenômenos culturais e dominação política conjugados.
Reproductive biology of two threatened and highly traded medicinal plants, Salacia gambleana and Salacia oblonga, from the Western Ghats of India
Authors: P.S. Krishnasree  , P.A. Jose  , K. Subin  , T.V. Sarath
Published: April 2022

Salacia is a genus of flowering plants in the family Celastraceae, consisting of woody climbers distributed in tropical America, Africa, and Asia. In India it is represented by 21 species, of which 15 occur in peninsular India. Most species of the genus have been used in traditional medicine, mainly the Ayurvedic system. Apart from overexploitation for medicinal purposes, the low fruit set and infestation of seeds have affected natural regeneration, and led to the rarity of Salacia species in their natural habitats. The reproductive biology of Salacia oblonga and S. gambleana was studied for the first time to understand the reproductive constraints of these threatened and medicinally important species. The flowering phenology, pollen viability, germination, stigma receptivity, and insect-pest interaction were analyzed. The obligatory entomophily coupled with insufficient pollinators and seed pest infestation were found to be the main reproductive constraints responsible for the low fruit set and poor natural regeneration of these species.
Hatching in Coromandel Marsh Dart Damselfly Ceriagrion coromandelianum (Fabricius) (Zygoptera: Coenagrionidae): process and influence of the oviposition substrate
Authors: Verma Payal , Thaokar Nilesh , Andrew Raymond
Published: April 2022

Coromandel Marsh Dart Damselfly Ceriagrion coromandelianum (Fabricius) breeds in stagnant pools, small garden tanks and ornamental cement ponds containing submerged and/or floating vegetation. Eggs were collected to observe two aspects of larval development: (1) The hatching rate of eggs deposited in different vegetation (Nymphaea nouchali, Lemna paucicostata, Hydrilla verticillata).  Although C. coromandelianum prefers to oviposit in the broad leaves of N. nouchali, the highest rate of hatching was found in H. verticillata (95.8%) followed by N. nouchali (87.6%) and L. paucicostata (81.3%).  Hatching commenced on Day 5 and was completed by Day 9.  Maximum hatching (56%) was recorded on the sixth day of oviposition followed by the seventh day (20%) in all three substrates. (2) To document the process of hatching as follows: Around three minutes prior to hatching, the embryo exhibits cyclic pumping and pushing movements of the head (caused by the peristaltic movement of the mid- and hind- gut) of low intensity followed by high intensity and long pumping movements interspaced with smaller pulsating movements.  Swelling of the head forces the apical chorion to split along the micropylar chute and like a lid, the apical tip topples over as a conical cap. This allows the prolarva to exit the egg. As it does so, it twists and the thorax swells breaking the prolarval sheath and releasing the first instar larva.
Case report of hook worm Grammocephalus hybridatus and stomach bot Cobboldia elephantis infections in a free-ranging Asian Elephant Elephas maximus in Tamil Nadu, India
Authors: Kaveri Theerthagiri Kavitha  , Chirukandoth Sreekumar  , Bhaskaran Ravi Latha
Published: April 2022

Elephants in the wild are susceptible to many gastrointestinal parasites. In the present study, necropsy was conducted on a free-ranging Asian Elephant Elephas maximus female aged about 15 years which died at Coimbatore forest range, Tamil Nadu state, India. The necropsy revealed that the liver was infected with round worms and the stomach was heavily infested with dipteran larvae. These round worms and larvae were collected and processed by dehydrating in ascending grades of alcohol and then cleared in carbolic acid. The cleared samples were mounted and examined under light microscopy for species identification. Faecal samples collected from the rectum were analysed by sedimentation for the presence of helminth eggs. On microscopic examination, the head end of the round worms showed a buccal capsule which possessed a pair of semilunar ventral cutting plates. Male worms showed well-developed bursa at the posterior end. The anterior end of the dipteran larvae showed two powerful oral hooks with cephalopharyngeal skeleton. Anterior spiracle appeared as a short club-shaped tube with 12 lobes. The abdominal segments of the larvae had a row of belt-like triangular spines. The posterior spiracles of the larvae had three longitudinal parallel slits in each spiracle with closed peritreme. Based on the above morphological characters, the round worms and larvae were identified as Grammocephalus hybridatus and Cobboldia elephantis, respectively.  Strongyle eggs were identified in the faecal sample based on the morphology of thin shell and segmented yolk. This appears to be the first report of G. hybridatus infection in a free-ranging elephant in Tamil Nadu state, India.
Population abundance of Greater Flamingo Phoenicopterus roseus (Aves: Phoenicopteridae) in district Gurugram of Haryana, India
Authors: Kumar Amit , Rana Sarita
Published: April 2022

We quantified the population abundance of Greater Flamingo Phoenicopterus roseus in Najafgarh Drain (Jheel), Basai Wetland, and Sultanpur flats of district Gurugram, Haryana from October 2018 to December 2020. A total of 72 visits were made to the study sites. In this study, we explored the uses of an unmanned aerial vehicle (UAV) equipped with a 5-megapixel camera to census the population and distribution of Greater Flamingos. The Nikon 10 x 50 field binoculars were used for observations. A photographic record was taken using a Canon Powershot sx70hs camera. To estimate the population size, point count method was used and videos and image analysis were carried out for a more accurate count in densely packed flocks. The mean population of Greater Flamingos was 267 ± 47 observed throughout the study period from the three sites. For three years, the highest mean population of Greater Flamingos recorded was 745 ± 76 at Najafgarh Drain and the lowest was 19 ± 8 at Sultanpur Flats. The Greater Flamingos were found to be residents at Najafgarh Drain. At the Basai Wetland, two major human activities were the construction of highways along wetlands and wetland drainage have been observed that resulted in habitat fragmentation and shrinkage, which is responsible for the huge decline in their population. While at Najafgarh Jheel fishing activities and overgrowth of water hyacinth were a major threat that affect the Greater Flamingo population. The findings in this study will be  beneficial for the conservation efforts of the flamingos in this area.
Management of traumatic ulcerative keratitis in a Red Serow
Authors: Deka Deepjyoti , Sharma Panchami , Das Arup , Dutta Kongkon J. , Arif Syed A. , Das Tinku
Published: April 2022

Red Serow Capricornis rubidus is an elusive herbivore native to the montane forests of the Himalaya. Currently it is categorized as ‘Vulnerable’ in the IUCN Red List and placed under Schedule I species of the Wildlife Protection Act, 1972. A serow was presented with complaints of mild inappetence, irritability, sporadic scratching of head over the enclosure barrier and serous ocular discharge from the left eye. Based on detail clinical examination, the animal was diagnosed with unilateral conjunctivitis, corneal oedema, and ulcerative keratitis. A combination of Xylazine @ 1.5mg/ kg body weight and Zolatile® (zolazepam and tiletamine) @ 2.5 mg/kg body weight was used to chemically restrain the animal, followed by auriculo-palpebral nerve block using 1 ml of 2 % lignocaine hydrochloride. The affected eye was adequately cleaned with isotonic sterile Normal Saline solution (NSS). Combination of 0.5 ml of ceftriaxone and 0.5 ml of flubiprofen was injected into upper and lower palpebral conjunctiva. The cornea and the third eyelid flap were carefully sutured using 5-0 and 3-0 Vicryl, respectively. Finally, tarsorrhaphy was done using 2-0 nylon. Post-operative care consisted of an antibiotic regimen of Cephalaxin @ 20 mg/ kg body weight b-i.d-twice in a day for seven days along with probiotic supplement (Vizylac®) and Vitamin A capsules (Aquasol A®) orally once daily for the next 30 days. The animal showed complete recovery within 30 days of proper treatment, monitoring, care and management.
Endemic Primula xanthopa Balf.f. & R.E. Cooper: rediscovery after 88 years from Bumdeling Wildlife Sanctuary, Bhutan
Authors: Shacha Namgay , Sangay Karma , Dendup Tshering , Ghalley Tez Bdr
Published: April 2022

During recent floristic exploration Primula xanthopa Balf.f. & R.E.Cooper was rediscovered from south-west of Bumdeling Wildlife Sanctuary, Bhutan on 5 August 2021 at an elevation of 3,785 m. The plant is recorded for the first time after initial discovery by R.E. Cooper in 1915. Identification and morphological description of P. xanthopa was done through Flora of Bhutan manual. It was found thriving in a small population in a fir forest among grazing and anthropogenic activities. A detailed description, distribution, habitat, conservation status, and photographic illustrations are provided.
First record of the jumping spider Pancorius changricus Żabka, 1990 from India (Araneae: Salticidae)
Authors: Anushka Gurung  , Aita Hang Subba Limboo  , Bhoj Kumar Acharya  , Prajapati Dhruv A.
Published: April 2022

Pancorius changricus Żabka, 1990 is recorded for the first time from India. Detailed illustrations of the general morphology and male copulatory organ are provided. The distribution records of the species are also mapped.
Psychological Distress in Adults With Congenital Heart Disease Over the COVID‐19 Pandemic
Authors: Janzen Mikyla L. , LeComte Karen , Sathananthan Gnalini , Wang Jia , Kiess Marla , Chakrabarti Santabhanu , Grewal Jasmine
Published: April 2022

Background

This study sought to better understand the experiences of adults with congenital heart disease throughout the pandemic. Objectives were to determine (1) psychological distress before and throughout the pandemic; (2) changes in day‐to‐day functioning; and (3) the percentage of adults with congenital heart disease who experienced COVID‐19 related symptoms, underwent testing, and tested positive.

Methods and Results

This was a cross‐sectional study paired with retrospective chart review. A web‐based survey was distributed to patients between December 2020 and January 2021. Patients reported on psychological distress across 5 categories (Screening Tool for Psychological Distress; depression, anxiety, stress, anger, and lack of social support), whether they experienced symptoms of COVID‐19 and/or sought testing, and changes to their work and social behavior. Five hundred seventy‐nine survey responses were received, of which 555 were linked to clinical data. Patients were aged 45±15 years. The proportion of patients reporting above‐threshold values for all Screening Tool for Psychological Distress items significantly increased during the early pandemic compared with before the pandemic. Stress returned to baseline in December 2020/January 2021, whereas all others remained elevated. Psychological distress decreased with age, and women reported persistently elevated stress and anxiety compared with men during the pandemic. A consistent trend was not observed with regard to American College of Cardiology/American Heart Association anatomic and physiologic classification. Fifty (9%) patients lost employment because of a COVID‐19–related reason. COVID‐19 symptoms were reported by 145 (25%) patients, 182 (31%) sought testing, and 10 (2%) tested positive.

Conclusions

A substantial proportion of adults with congenital heart disease reported clinically significant psychological distress during the pandemic.
Anxiety and Depression Following Aortic Valve Replacement
Authors: Wegermann Zachary K. , Mack Michael J. , Arnold Suzanne V. , Thompson Christin A. , Ryan Michael , Gunnarsson Candace , Strong Susan , Cohen David J. , Alexander Karen P. , Brennan J. Matthew
Published: April 2022

Background

The aim of this study was to identify patients vulnerable for anxiety and/or depression following aortic valve replacement (AVR) and to evaluate factors that may mitigate this risk.

Methods and Results

This is a retrospective cohort study conducted using a claims database; 18 990 patients (1/2013–12/2018) ≥55 years of age with 6 months of pre‐AVR data were identified. Anxiety and/or depression risk was compared at 3 months, 6 months, and 1 year following transcatheter aortic valve replacement or surgical AVR (SAVR) after risk adjustment using logistic regression and Cox proportional hazards models. Separate models were estimated for patients with and without surgical complications and discharge location. Patients with SAVR experienced a higher relative risk of anxiety and/or depression at 3 months (12.4% versus 8.8%; adjusted hazard ratio [HR] 1.39 [95% CI, 1.19–1.63]) and 6 months (15.6% versus 13.0%; adjusted HR, 1.24 [95% CI, 1.08–1.42]), with this difference narrowing by 12 months (20.1% versus 19.3%; adjusted HR, 1.14 [95% CI, 1.01–1.29]) after AVR. This association was most pronounced among patients discharged to home, with patients with SAVR having a higher relative risk of anxiety and/or depression. In patients who experienced operative complications, there was no difference between SAVR and transcatheter aortic valve replacement. However, among patients without operative complications, patients with SAVR had an increased risk of postoperative anxiety and/or depression at 3 months (adjusted HR, 1.47 [95% CI, 1.23–1.75]) and 6 months (adjusted HR 1.26 [95% CI, 1.08–1.46]), but not at 12 months.

Conclusions

There is an associated reduction in the risk of new‐onset anxiety and/or depression among patients undergoing transcatheter aortic valve replacement (versus SAVR), particularly in the first 3 and 6 months following treatment.
Sphenempis, a new Empis subgenus (Diptera, Empididae) from the Eastern Palaearctic Region
Authors: SAIGUSA TOYOHEI
Published: April 2022

Empis (Sphenempis Saigusa) subgen. nov. (Diptera, Empididae) and its included species, Empis (Sphenempis) bicoloriventris Saigusa sp. nov. from the Ryukyus, Japan and Empis (Sphenempis) oshimai Saigusa sp. nov. from Kyushu, Japan are described. Empis (Lissempis) amurensis Shamshev, 1998 from Amur, Russia is newly included in the subgenus Sphenempis.
Generalized Alpha-Power Transformation Family of Distributions with an Application to Exponential Model
Authors: El-Sherpieny El-Sayed A. , Hwas H. K.
Published: April 2022

We propose a new generated family of distributions that is known as the generalized alpha-power transformation-G (GAPT-G) family of distributions. The new class of family can be more flexible since the density shapes are left skewed, symmetrical and reversed-J. Some special models
derived and discussed. Several of its important properties are derived. The maximum likelihood equations are derived for GAPT-G family parameters. The importance and flexibility of the derived models is assessed using one real dataset.
An In Silico and In Vitro Study of the Metal Complex di-μ-Chloro-Bis[Chlorine (4,7-Dimethyl-1,10-Phenanthroline) Cadmium(ii)] with Antibacterial Potential
Authors: Bastos Ruan S. , Araújo Joabe L. , Ferreira Maria L. A. S. , Moreira Gleidiany C. , Lima Francisco C. A. , Lima Benedicto A. V. , Santos Igor V. F. , Sanches Vitor H. S. , Ramos Ryan S. , Ferreira Elenilze F. B. , Rocha Jefferson A. , Santos Cleydson B. R.
Published: April 2022

The bacteria are responsible for several diseases in humans and currently there is an increase in the development of resistance to commercial drugs. In this study, we evaluated In Vitro and in silico antibacterial potential of the metal complex di-μ-chloro-bis [chlorine
(4, 7-dimethyl-1, 10-phenanthroline) cadmium (II)]. Computational techniques, DFT with hybrid functional and B3LYP/GEN base (LANL2DZ for Cd and 6–311++G** for C, N, Cl and H), were applied and compared with literature data. The In Vitro antibacterial biological assays revealed
a halo of 16 mm and a minimum inhibitory concentration of 6.25 μg/cm3; for Enterococcus faecalis and Staphylococcus. aureus, respectively. Molecular docking simulations were realized and the complex presented satisfactory results of binding energy showing the ease with
which the ligand binds to the E. faecalis (−8.14 kcal/mol) and S. aureus (−7.00 kcal/mol). Additionally, pharmacokinetic and toxicological predictions were realized. ADME/Tox profile results showed that, although the cadmium complex met several of the parameters required
for potential drugs, it has not been classified as a suitable one due to its high molecular weight. The results obtained demonstrate the effectiveness of the cadmium complex as a potential antibacterial agent.
Modeling and Control of Electrical Power and Energy Produced by a Synchronous Generator Using Polynomial Fuzzy Systems and Sum-Of-Squares Approach
Authors: Hosseini Rostami Seyyed Mohammad , Sheikhi Babak , Jafari Ahmad , Darvish Mohammadreza
Published: April 2022

The synchronous generator, as the main component of power systems, plays a key role in these system’s stability. Therefore, utilizing the most effective control strategy for modeling and control the synchronous generator results in the best outcomes in power systems’ performances.
The advantage of using a powerful controller is to have the synchronous generator modeled and controlled as well as its main task i.e., stabilizing power systems. Since the synchronous generator is known as a complicated nonlinear system, modeling and control of it is a difficult task. This
paper presents a sum of squares (SOS) approach to modeling and control the synchronous generator using polynomial fuzzy systems. This method as an efficacious control strategy has numerous superiorities to the well-known T-S fuzzy controller, due to the control framework is a polynomial fuzzy
model, which is more general and effectual than the well-known T-S fuzzy model. In this case, a polynomial Lyapunov function is used for analyzing the stability of the polynomial fuzzy system. Then, the number of rules in a polynomial fuzzy model is less than in a T-S fuzzy model. Besides,
derived stability conditions are represented in terms of the SOS approach, which can be numerically solved via the recently developed SOSTOOLS. This approach avoids the difficulty of solving LMI (Linear Matrix Inequality). The Effectiveness of the proposed control strategy is verified by using
the third-part Matlab toolbox, SOSTOOLS.
Optical Microwave Scintillometer Evaporation Measurements over a Saline Lake in a Heterogeneous Setting in the Atacama Desert
Authors: Lobos-Roco Felipe , Hartogensis Oscar , Arellano Jordi Vilà-Guerau de , Aguirre Francisca , Fuente Alberto de la , Suárez Francisco
Published: April 2022

Estimating lake evaporation is a challenge due to both practical considerations and theoretical assumptions embedded in indirect methods. For the first time, we evaluated measurements from an optical microwave scintillometer (OMS) system over an open-water body under arid conditions. The OMS is a line-of-sight remote sensing technique that can be used to measure the sensible and latent heat fluxes over horizontal areas with pathlengths ranging from 0.5 to 10 km. We installed an OMS at a saline lake surrounded by a wet-salt crust in the Salar del Huasco, a heterogeneous desert landscape in the Atacama Desert. As a reference, we used eddy covariance systems installed over the two main surfaces in the OMS footprint. We performed a footprint analysis to reconstruct the surface contribution to the OMS measured fluxes (80% water and 20% wet salt). Furthermore, we investigated the applicability of the Monin–Obukhov similarity theory (MOST), which was needed to infer fluxes from the OMS-derived structure parameters to the fluxes. The OMS structure parameters and MOST were compromised, which we mitigated by fitting MOST coefficients to the site conditions. We argue that the MOST deviation from values found in the literature is due to the effects of the surface heterogeneity and the nonlocal processes induced by regional circulation. With the available dataset we were not able to rule out instrument issues, such as additional fluctuations to the scintillation signal due to absorption or the effect of vibration in high-wind conditions. The adjusted MOST coefficients lowered by a factor of 1.64 compared to using standard MOST coefficients. For H and LυE, we obtained zero-intercept linear regressions with correlations, R2, of 0.92 and 0.96, respectively. We conclude that advances in MOST are needed to successfully apply the OMS method in landscapes characterized by complex heterogeneity such as the Salar del Huasco.