bluuebunny/crossref_metadata_2025 huggingface dataset:
Responses of Secondary Metabolites and Transcriptomes in Tea Cultivar ‘Zhong Ming 6’ (Camellia Sinensis) under Blue Light and Red Light Journal Name: Plant Growth Regulation
Authors: Shirin Aktar , Zhang Yazhen , Mao Peng , Lei Yuping , Bai Peixian , Wang Yongxin , Ruan Li , Xun Hanshuo , Wu Liyun , Cheng Hao , Wang Liyuan , Wei Kang
Published: January 2022

Light is one of the most prestigious environmental sign, which stimulates plant metabolite consequences. Zhong Ming 6 (ZM6) is a green tea (Camellia sinensis) cultivar with highly accumulating TGGP. Here, three kinds of supplemental light wavelengths including blue light (BL,200 µmol m−2 s−1), red light(RL,200 µmol m−2 s−1), and White Light (WL/CK, 200 µmol m−2 s−1) were applied to explore their effects on the transcriptomes and metabolomics of young shoots (one bud and two leaves) in tea plants. Interestingly, artificial BL and RL significantly affect the secondary metabolites and transcriptome factors of tea plants. Here, BL extensively dominated the multiple physiological actions with secondary metabolism. In addition, RL could induce plant growth, development, and photosynthesis. Thoroughly, the identification of eight structural genes and 34 transcription factors (TFs) signiଁcantly correlated with total catechin (TC) and anthocyanin. Due to the upregulations of the CsGSTF1 gene in the flavonoid biosynthesis pathway, anthocyanin production was maximum under BL. Then, CsMYB75, bHLH-MYC, and other R2R3-MYBs were highly upregulated in BL to increase the accumulation of TC and anthocyanins in tea plants. Again, the CsMYB4 gene was highly significant and positively correlated with TC and anthocyanin accumulation under RL. We indicated that BL is more feasible due to the number of functional metabolites (gallic acid, caffeine, TC, TGGP (1, 2, 6-tri-O-galloyl-β-D-glucopyranose), and anthocyanin) being supreme. For taste, quality, and dynamic indigenous mechanism of the tea plant, RL is also suitable that increase Chlorophyll content and tea yield.
Otitis Media with Effusion in Children Aged 2-12 Years Attending the Paediatric Clinic at Mulago National Referral Hospital, a Ugandan Tertiary Hospital: A Cross-Sectional Study.
Authors: Bamaraki Kabagambe , Namwagala Justine , Hidour Rym , Bambi Emma Nsalazi
Published: January 2022

Background

Otitis media with effusion (OME) is common in children aged between 6 months to 4 years, and it is one of the causes of hearing loss (HL) in children worldwide. OME is a type of inflammation of the middle ear in which there is collection of the fluid. The later causes HL which interferes with speech and language development, communication skills, school performance, psychosocial skills, and quality of life of children.
Methods

This was a prospective cross-sectional study on 246 children aged 2 -12 years, attending Mulago National Referral Hospital (MNRH). Consecutive sampling procedure was used to reach each participant under ethical considerations until the sample size was reached. All children aged 2-12 years who meeting inclusion criteria were examined first by the Paediatrician and then by the Principal Investigator. Patients who had diagnosis of OME following the otoscopy and tympanometry findings were then proceed for audiological assessment. Prevalence of OME was summarized as a proportion and multivariate analysis was used to determine the factors associated with OME. Data was analyzed using STATA version 13.0.
Results

A total of 246 children were recruited into the study. Of the 246 children, 60% were male. The median age of the participants was 4.8±2.8 years. The prevalence of OME was found to be 11%. Upper respiratory tract infections (URTI), recurrent AOM (p= 0.005, OR:5.14, 95% CI: 1.66-15.96), and snoring (p= 0.000, OR: 6.32, 95% CI: 2.32-17.26) were found to be strongly associated with OME in children aged 2-12 years attending MNRH.
Conclusions

The prevalence of OME among children 2-12 years attending MNRH was found to be 11%. There is association between OME and URTI, recurrent AOM, and snoring in children aged 2-12 years attending MNRH.
Effects of Phase Configuration on Nonlinear Dynamic Characteristics of the Multi-Stage Gear Transmission System
Authors: Li Wei , Li Ziyuan , Yu Jiapeng
Published: January 2022

In the vibration detection of multi-stage gear transmission, the gear ratio has a regular influence on its vibration characteristics. To explore this phenomenon, this paper presents the phase configuration method of the multi-stage gear transmission. The complete mesh phasing space based on the system gear ratio and the phase between each stage is derived. Taking The two-parallel shaft gear transmission system as an example, A nonlinear dynamic model is established. The influence of phase configuration on the vibration characteristics is analyzed in detail. By means of the numerical calculation method, the vibration equation is solved for the gear system, and the varying regularity of the optimal phase angle of the vibration characteristics at different mesh frequency was found. Finally, it reveals the influence of different gear ratios on the vibration characteristics of multi-stage gear transmission.
Ion Exchange Capacity of Synthetic Zeolite L: A Promising Way for Cerium Recovery
Authors: Confalonieri Giorgia , Vezzalini Giovanna , Maletti Laura , Renzo Francesco Di , Gozzoli Vittorio , Arletti Rossella
Published: January 2022

Due to the increasing demand for Rare Earth Elements (REE) and the current political scenario, it is essential to recover these elements from industrial or mining waste. Zeolites are microporous materials little investigated for REEs recycle. Here, we propose the use of NH4+-exchanged synthetic zeolite L for cerium recovery from a solution mimicking the Ce3+ concentration of the liquors deriving from the recovery of spent catalysts (0.002 M). A NH4+-exchanged sample was used since the presence of only ammonium as exchangeable cation in the zeolite porosities greatly simplifies the Ce recovery once the exchange is accomplished. The aim of this work is twofold, in fact we want to investigate the exploitability of zeolite L as cation exchanger in the Ce recovery and determine the best working conditions. The investigated process consists of a coupled cation exchange: 1) Ce3+(solution)+3NH4++(zeolite) ↔ Ce3+(zeolite)+3NH4++(solution). In the first exchange the NH4+ cations - present in the zeolite porosities- are exchanged with the Ce3+ of the solution and in the second experiment the Ce3+ trapped into the zeolite is recovered through a further exchange with the NH4+ of a rich solution. The best working conditions for Ce3+ exchange of NH4-L are: batch system, liquid/solid ratio equal to 90 mL/g and 180 mL/g, 24 h of contact at 25 °C. The resulting cerium adsorption capacity (qt) is equal to ~25 mg/g and ~39 mg/g and the removal efficiency 100 % and 77 % for the two tested liquid/solid ratios, respectively. The kinetics was proved to be fast and consistent with industrial timing, no energy cost for temperature setting is required and the acid pH (~4) of the solutions does not affect the zeolite structure stability and its exchange performance. At these conditions, cerium of the solution was first incorporated into the zeolite porosities and then completely recovered. It has been demonstrated that the zeolite framework is not affected by the exchange so that the same absorbent can be employed many times.
The Consistencies of Variations of Precipitable Water and Surface Water Vapor Pressure at Different Climatic Scales
Authors: Hao Jiawei , Lu Er
Published: January 2022

Water vapor is a vital basis of water and energy cycles and varies with space and time. When researching the variations of moisture in the atmosphere, it is intuitive to think about the total water vapor of the atmosphere column, precipitable water. It is an element that needs high-altitude observations. A surface quantity, surface water vapor pressure, has a close relationship to precipitable water because of the internal physical linkage between them. The stability of their linkage at climatic scales is verified in this work, while studies before mainly concentrated on daily and annual cycles. The consistency of their variations is checked with three reanalysis datasets from three angles, including the interannual variations, the long-term trends, and the first EOF modes. Results show that the interannual correlation of surface water vapor pressure and precipitable water can reach a quite high level in most areas, and the weak correlation regions mainly exist in low-latitude areas. The long-term trends, as well as the first EOF modes of these two quantities also show that their variations are well consistent, but specific differences appear in some regions, and there are discrepancies among different datasets. With the correspondence of precipitable water and surface water vapor pressure, the variations of total column water vapor can be indicated by the surface quantity, surface water vapor pressure. The correspondence is also meaningful for the analysis of the co-variation of total column vapor and temperature. For example, we could research the relations between surface vapor pressure and air temperature, and it can reflect the co-variance of total column vapor and near-surface air temperature. Linking the column integrated moisture content to surface temperature directly or integrating the column temperature can be avoided.
Ameliorative Effects of Arctigenin From Arctium Lappa L Against LPS-induced Neuroinflammation and Cognitive Impairments in Mice
Authors: Yuan Quan , Wu Yiran , Wang Gang , Zhou Xiang , Dong Xiaohui , Lou Zihan , Li Sanqiang , Wang Dongmei
Published: January 2022

Arctigenin is a phenylpropanoid dibenzylbutyrolactone lignan in Arctium lappa L, which has been widely applied as a traditional Chinese herbal medicine for treating inflammation. In the present study, we explored the neuroprotective effect and the potential mechanisms of arctigenin against LPS-evoked neuroinflammation, neurodegeneration, and memory impairments in the mice hippocampus. Daily administration of arctigenin (50 mg/kg per day, i.g.) for 21 days revealed noticeable improvements in spatial learning and memory deficits after exposure to LPS treatment. Arctigenin prevented LPS-induced neuronal/synaptic injury and inhibited the increases in Aβ generation and the levels of amyloid precursor protein (APP) and β-site amyloid precursor protein cleavage enzyme 1 (BACE1). Moreover, arctigenin treatment also suppressed glial activation and reduced the production of proinflammatory cytokines. In LPS-treated BV-2 microglial cells and mice, activation of the TLR4 mediated NF-κB signaling pathway was significantly suppressed by arctigenin administration. Mechanistically, arctigenin reduced the LPS-induced interaction of adiponectin receptor 1 (AdipoR1) with TLR4 and its coreceptor CD14 and inhibited the TLR4-mediated downstream inflammatory response. The outcomes of the current study indicate that arctigenin mitigates LPS-induced apoptotic neurodegeneration, amyloidogenesis and neuroinflammation as well as cognitive impairments, and suggest that arctigenin may be a potential therapeutic candidate for neuroinflammation/neurodegeneration-related diseases.
Biogeographic responses and niche occupancy of microbial communities following long-term land-use change
Authors: Goss-Souza Dennis , Tsai Siu Mui , Rodrigues Jorge Luiz Mazza , Klauberg-Filho Osmar , Sousa José Paulo , Baretta Dilmar , Mendes Lucas William
Published: January 2022

Understanding the effects of forest-to-agriculture conversion on microbial diversity has been a major goal in soil ecological studies. However, linking community assembly to the ruling ecological processes at local and regional scales remains challenging. Here, we evaluated bacterial community assembly patterns and the ecological processes governing niche specialization in a gradient of geography, seasonality, and land-use change, totalizing 324 soil samples, 43 habitat characteristics (abiotic factors), and 16 metabolic and co-occurrence patterns (biotic factors), in the Brazilian Atlantic Rainforest, a subtropical biome recognized as one the world’s largest and most threatened hotspots of biodiversity. We observed no significant shifts in alpha diversity due to land-use change. Meanwhile, pairwise beta diversities and distance decays were lower in pastures than those observed for forest and no-till soils. Pasture communities showed a predominantly neutral model, regarding stochastic processes, with moderate dispersion, leading to biotic homogenization. Most no-till and forest microbial communities followed a niche-based model, with low rates of dispersal and weak homogenizing selection, indicating niche specialization or variable selection. Historical and evolutionary contingencies, as represented by soil type, season, and dispersal process were the main drivers of microbial assembly and processes at the local scale, markedly correlated with the occurrence of endemic microbes. Our results indicate that the patterns of assembly and their governing processes are dependent on the niche occupancy of the taxa evaluated (generalists or specialists). They are also more correlated with historical/evolutionary contingencies and the interactions among taxa (i.e. co-occurrence patterns) than the land-use change itself.
Keywords: Biodiversity hotspots, historical contingency, land-use change, microbial distance-decay, microbial niche specialization, soil bacterial co-occurrence.
Silicate nutrition and its biological mechanisms involved in water use efficiency in sugarcane and energy cane crops under water deficit
Authors: Teixeira Gelza Carliane Marques , Prado Renato de Mello , Rocha Antonio Márcio Souza , Filho Antonio Santana Batista Oliveira , Junior Gilmar da Silveira Sousa , Gratão Priscila Lupino
Published: January 2022

Sugarcane and recently energy cane strengthen the world’s renewable bioenergy production capacity. Notwithstanding, climate change has resulted in droughts that limit their growth. One of the strategies to attenuate water deficit damage in these crops concerns the contribution of silicate nutrition to physiology. This strategy is likely to increase water use efficiency, thus favoring the sustainability of these crops. However, studies on this issue are still incipient. This study assesses whether Si applied via fertigation and foliar spraying in the seedling production phase and as a complement after transplanting to the soil is efficient in attenuating water deficit effects in sugarcane and energy cane. The study further elucidates the physiological and biochemical mechanisms involved in this process. For this, the authors conducted two experiments, one with sugarcane and the other with energy cane. The treatments consisted of a 2 x 2 factorial scheme, with absence (-Si) and presence of Si (+Si) applied via fertigation and foliar spraying; and two water regimes: 70% (no deficit) and 30% (severe water deficit) of the soil water retention capacity. The treatments were arranged in randomized blocks with 5 replications. Silicon supply occurred during the formation phase of pre-sprouted seedlings and during their transplanting to pots filled with samples of Entisols (Quartzipsamments). In the latter, water regimes were induced from 7 to 160 days after transplanting. Severe water deficit reduced the water content and water potential of plants, inducing oxidative stress and impairing gas exchange and photosynthetic water use efficiency, with a consequent reduction in plant growth. Silicon supply via fertigation in association with foliar spraying in the seedling formation phase with complementation after transplanting was efficient in increasing the accumulation of the element in the plants. Silicon was effective in attenuating severe water deficit damage until initial culm formation through mechanisms that maintain water and physiological balance by favoring the antioxidant defense system in sugarcane and energy cane plants.
Nomogram Based on MRI Can Preoperatively Predict Brain Invasion in Meningioma
Authors: Zhang Jing , Cao Yuntai , Zhao Zhiyong , Sun Jianqing , Li Wenyi , Ren Jialiang , Han Tao , Zhou Junlin , Chen Kuntao
Published: January 2022

Objectives: Predicting brain invasion preoperatively should help to guide surgical decision-making and aid the prediction of meningioma grading and prognosis. However, only a few imaging features have been identified to aid prediction. This study aimed to develop and validate an MRI-based nomogram to predict brain invasion by meningioma.Methods: In this retrospective study, 658 patients were examined via routine MRI before undergoing surgery and were diagnosed with meningioma by histopathology. Least absolute shrinkage and selection operator (LASSO) regularization was used to determine the optimal combination of clinical characteristics and MRI features for predicting brain invasion by meningiomas. Logistic regression and receiver operating characteristic (ROC) curve analyses were used to determine the discriminatory ability. Furthermore, a nomogram was constructed using the optimal MRI features, and decision curve analysis was used to validate the clinical usefulness of the nomogram. Results: Eighty-one patients with brain invasion and 577 patients without invasion were enrolled. According to LASSO regularization, tumor shape, tumor boundary, peritumoral edema, and maximum diameter were independent predictors of brain invasion. The model showed good discriminatory ability for predicting brain invasion in meningiomas, with an AUC of 0.905 (95% CI, 0.871-0.940) vs 0.898 (95% CI, 0.849-0.947) and sensitivity of 93.0% vs 92.6% in the training vs validation cohorts. Conclusions: Our predictive model based on MRI features showed good performance and high sensitivity for predicting the risk of brain invasion in meningiomas and can be applied in the clinical setting.
Factors Influencing the Live Birth Rate of Fresh Embryo Transfer in Infertile Women with Endometrial Cavity Fluid: A Case Control Study
Authors: Yue Caixin , Lv Hong , Lv Jia-nan , Yan Lei
Published: January 2022

Background: The pregnancy outcome of infertile patients with endometrial cavity fluid undergoing fresh embryo transfer is controversial. We aimed to build a logistic regression model including age, ovarian function and ovarian stimulation protocols to predict the live birth rate of fresh embryo transfer in patients with endometrial cavity fluid.Methods: Patients underwent in vitro fertilization/intracytoplasmic sperm injectio were selected from January 2014 to September 2020 in the Reproductive Hospital affiliated to Shandong University, and the presence of endometrial cavity fluid was indicated by ultrasound before fresh embryo transfer. A total of 2383 patients with endometrial cavity fluid suggested by ultrasound before fresh embryo transfer were enrolled in this study. Clinical and laboratory parameters that may influence live birth rate were analysed. Univariate, multivariate analysis and Receiver operating characteristic curve were conducted to evaluate the relationship between the predictors and live birth rate.Results: The overall live birth rate was 1224/283 (51.38%), multivariate logistic analysis indicated that only transfer 2 embryos increased the probability of live birth (aOR: 2.274; 95%CI: 1.539- 3.361; P<0.01), other factors will reduce the chance of live birth, age≥35 (aOR: 0.509; 95%CI: 0.410-0.632; P<0.01), history of endometritis (aOR: 0.236; 95%CI: 0.076-0.729; P=0.012), Gonadotropin start-up dose>150IU (aOR: 0.785; 95% CI: 0.635-0.970; P=0.025), endometrial thickness on trigger day<8mm (aOR：0.286；95%CI：0.166-0.492；P<0.01), the gonadotropin releasing hormone agonist short regimen (aOR:0.611; 95%CI: 0.467-0.799; P<0.01). In addition, we found that hydrosalpinx did not significantly affect the live birth rate after fresh embryo transfer in endometrial cavity fluid patients.Conclusions: For infertile patients with endometrial cavity fluid before fresh embryo transfer, age <35 years, endometrial thickness ≥8mm on trigger day and transfer two embryos might obtain better pregnancy outcomes, and history of endometritis, gonadotropin releasing hormone agonist short regime and Gonadotropin start-up dose >150IU might be opposite.
The Perception of Religious Community Toward Pandemic COVID-19 by Using Health Belief Model: Qualitative Research Method, West Guji Zone, Ethiopia 2021
Authors: Galgalo Dawit
Published: January 2022

IntroductionDealing with religious congregations in times of epidemics could be challenging. This mobilization and gathering could serve as a potential focal point for dispersal of novel pathogens. Furthermore in the light of recent events on the pandemic COVID-19, there are some considerable concerns about the perception of the religious community toward pandemic COVID-19. Thus, this study explored the perception of the religious communities about pandemic COVID-19 and their prevention practice amid pandemic.MethodA qualitative research method with in depth exploratory phenomenological study approach was employed. Purposive sampling technique was used to select 22 study participants from Christion Protestant, Christian Orthodox, Muslim and Wakefata. In-depth interview and focus group discussion were conducted with religious community including religious leader. Data was analyzed using content analysis informed by health belief model.ResultThe study describes the perception of religious community including religious leaders with help of the four constructs of the health belief model: perceived susceptibility, perceived severity, perceived benefit and perceived barriers. Many participants witnessed that people who are gathered in confined places like churches and mosques are susceptible to COVID-19. Most of participants realized that there are still misconceptions about COVID-19 disease. Many participants witnessed that most of their church members still do not believe in the existence of COVID-19. In addition, some participants revealed that until now there are parts of the community that associated COVID-19 with politics, scientists, illuminants, or the disease of devilsConclusion and RecommendationThe majority of participants agreed that the risk of getting COVID-19 pandemic during religious congregation is very high. The result highlights the need for holistic approach by concerned stakeholders to convince the religious congregation about the realty of this pandemic which could improve the prevention practice and their decision making process.
Student commitment to technology in times of COVID–19: public universities in southern Peru during the bicentenary of independence
Authors: Neira Ponce Elsa Emma , Corrales Peralta Freddy Leónidas
Published: January 2022

Peru was no different to any other country in having to tackle Covid-19, but it did as it was preparing to celebrate the bicentenary of its independence. Great changes therefore had to be made to the celebrations as well as to other aspects of national life--especially the education sector, in which universities witnessed radical alterations to the teaching--learning process. Students had to learn using technology, despite often lacking the necessary equipment or being accustomed to other forms of learning behavior. Therefore, it is important to explore the extent to which students and their professors have been committed to the use of technology across different courses. Many studies have shown that academic engagement is a construct that encourages student learning, interest, well-being, and performance. However, a key problem in this line of enquiry involves determining the relationship between student commitment and the use of ICT in the learning process; these technologies are particularly important at present, even though some research has found that students only use it as a distraction. Therefore, in the present study we seek to determine the relationship between student commitments to learning and the technology they use in the process. In so doing we yielded an acceptable Spearman R correlation of 0.417, which indicates that there is in fact a correlation between the use of technologies and student engagement. This means that students are committed to technology even when their socio-economic levels mean they cannot afford to purchase these new tools. In turn, the information we collected alongside professors indicated a moderate correlation of 0.376, indicating that although professors are committed to teaching, they still do not have much of a relationship with technology and make limited use of it in the classroom. Thus, in sum, we found that students are closer to these forms of technology while their professors remain at a stage of adaptation.
A Theoretical Evaluation of the Behavior of Nitrosoamidine upon Reacting
with Methoxy Butadiene as Potential Heterodiene or Heterodienophile
Authors: Hamzehloueian Mahshid , Haghdadi Mina , Lotfi Marjan
Published: January 2022

The molecular mechanism of experimentally observed regio- and chemo-selectivity of the
cycloaddition reaction of nitrosoamidine 1 and 1-methoxy butadiene 2 has been investigated using
DFT calculations at M06-2X/cc-pVDZ level. Accordingly, the possible reaction pathways and factors
that govern selectivity are investigated systematically. Analysis of the calculated results showed that
the most favorable cyclization reaction occurs through the [2+4] endo-proximal pathway, which is kinetically
and thermodynamically controlled. Moreover, analysis of the global and local reactivity indices
correctly explains the source of the experimentally observed regio- and chemoselectivity. The electron
localization function (ELF) analysis of some selected points along the IRC profile of the most preferred
pathway suggested that the reaction takes place via a two-stage one-step mechanism. NCI topological
analysis of the possible pathways of [2+4] cycloaddition reaction of 1-E and 2-Z revealed the roles
of the attractive interactions between reaction sites, the weak noncovalent interactions observed in the endo
approaches, and the repulsive interactions in the regio- and stereo-selectivity of the reaction.
Linguistic Assertiveness to Contest Minorization: Observations from Small Interventions to Boost the Use of Frisian in Fryslân
Authors: Belmar Viernes G.
Published: January 2022

As Belmar, van Boven & Pinho (2019) pointed out, Frisians tend to quickly switch to Dutch in conversations in which their interlocutor either answers in Dutch or exhibits signs of struggling with Frisian. This accommodation is often seen as an act of politeness, but it also contributes to the minorization of, in this case, Frisian. Suay & Sanginés (2010) argue that linguistic assertiveness needs to be considered in language promotion campaigns, as it aims to empower speakers to break away from these dynamics of diglossia. In this paper we will present qualitative observations from two small interventions where 15 participants took part in Linguistic Assertiveness workshops designed to train them to trust receptive multilingualism and engage in bilingual conversations. The observations from these interventions show that politeness ideologies are an obstacle for the embrace of multilingual conversations, but positive attitudes and reports of positive experiences suggest that these can be contested. The results also suggest that further application of linguistic assertiveness - and the consequent embracing of bi-/multilingual conversations - may have a boosting effect on the use of the Frisian language in the province.
Влияние температуры обжига на размер зерен и электрокалорический эффект керамики титаната бария
Authors: Старков И.А. , Анохин А.С. , Мыльников И.Л. , Мишнев М.А. , Старков А.С.
Published: January 2022

A theoretical study of the polarization distribution and mechanical stresses in a ferroelectric ball located in an unlimited dielectric space has been carried out. The ball is covered with a dielectric and air shell. The external electric field far from the ball is assumed to be uniform. The polarization in the ball satisfies the nonlinear Landau-Ginzburg equation, which takes into account the presence of electrostriction. It is also assumed that for a small ball, the effect of local elastic stresses on polarization can be replaced by their homogenized value over the volume of the ball. Under this assumption, the distribution of the stress and the electric field can be obtained both in the ball and outside it. The dependence of the Curie-Weiss temperature on the radius of the ball is derived. The resulting solution is used to simulate the properties of microgranular ceramics. Along with the developed theoretical model, a series of experiments was carried out to measure the temperature dependence dielectric constant and the electrocaloric effect (ECE) for BaTiO$_3$ ceramics synthesized at different temperatures. The change in temperature during ECE was measured by direct methods. The greatest value of the ECE was achieved for ceramics synthesized at 1350℃. The magnitude of the change in temperature with a change in the electric field by 2mV/m was ΔT=0.42K. The observed experimental results demonstrate the possibility of using the theoretical four-phase model of ceramics to predict the dependence of the properties of ceramics on the sintering temperature.
Структурные и спектральные характеристики ортоборатов Pr-=SUB=-1-x-=/SUB=-Lu-=SUB=-x-=/SUB=-BO-=SUB=-3-=/SUB=-
Authors: Шмурак С.З. , Кедров В.В. , Киселев А.П. , Фурсова Т.Н. , Зверькова И.И.
Published: January 2022

The structure, IR absorption and luminescence spectra of Pr0.99xLuxEu0.01BO3 orthoborates synthesized at 970°C were studied at 0 ≤ x ≤ 0.99. An increase in the concentration of lutetium
leads to a sequential change of the structural state of the orthoborates. At first, the orthoborates are single-phase and have an aragonite structure (0 ≤ x ≤ 0.1). Then, they become two-phase and contain the aragonite and vaterite phases (0.1 < x < 0.6). With a further increase in х (0.6 < x ≤ 0.8), the compounds are single-phase with a vaterite structure, then they contain the vaterite and calcite phases (0.8 < x ≤ 0.95), and, finally, they become single-phase with a calcite structure (0.95 < x ≤ 0.99). An unambiguous correspondence between the structural modification and IR spectra of these compounds was established. It is shown that the emission of Eu3 + ions is observed in samples where the concentration of europium exceeds that of praseodymium.
Consistencia Interna, Dimensionalidad y Reproducibilidad de dos Escalas para Estigma-Discriminación Relacionado con Trastornos Mentales en Estudiantes de Medicina
Authors: Ceballos-Ospino Guillermo Augusto , Campo-Arias Adalberto , Caballero-Domínguez Carmen
Published: January 2022

Introducción: la escala de conocimiento en salud mental (MAKS) y la escala de trastorno mental: actitudes de los médicos (MICA) son herramientas para explorar estigmadiscriminación relacionado con los trastornos mentales. Las traducciones en español están disponibles; sin embargo, se desconoce la consistencia interna de estos instrumentos. Objetivo: explorar la consistencia interna y la correlación entre MAKS y MICA en estudiantes de medicina. Materiales y métodos: se diseñó un estudio psicométrico. Una muestra de 507 estudiantes, con edades comprendidas entre 18 y 39 años (M=21,0; DE =2,9), 56,5 % eran mujeres, 65,3 % estudiaban en una universidad privada y 50,1 % tomaban cursos básicos de medicina. Los participantes completaron el MAKS y el MICA, que son escalas de 12 y 16 ítems, respectivamente. Ambas escalas ofrecen opciones de respuesta tipo Likert, desde totalmente de acuerdo hasta totalmente en desacuerdo. Resultados: se calculó la consistencia interna (alfa de Cronbach y omega de McDonald) y la correlación entre MAKS y MICA. MAKS mostró alfa de Cronbach de 0,62 y omega de McDonald de 0,77 y MICA presentó alfa de Cronbach de 0,51 y omega de McDonald de 0,33. La reproducibilidad de la MICA r=0,44 y CCI de 0,61 y la de la MAKS rs=0,44 y CCI de 0,60. Conclusión: se concluye que la MAKS presenta aceptable consistencia interna y reproducibilidad; sin embargo, la MICA muestra un pobre desempeño. Se recomienda utilizar MAKS para medir la discriminación de estigma relacionada con trastornos mentales entre estudiantes de medicina en Santa Marta, Colombia. Los ítems de la versión en español de la MICA necesitan una revisión sólida.
Calidad del Aire y Enfermedades Respiratorias bajo Diversos Esquemas de Circulación Vial en Bucaramanga (Santander, Colombia)
Authors: Orlandoni-Merli Giampaolo , Ramoni-Perazzi Josefa , Pérez-Pulido Miguel Oswaldo
Published: January 2022

Introducción. En 2017, la ciudad de Bucaramanga ensayó diversos esquemas de restricción vehicular para mejorar la movilidad y calidad del aire. Estos esquemas fueron: libre circulación (PP0), restricción limitada (PP1) y restricción ampliada (PP2). El Objetivo de este estudio fue comparar los niveles de material particulado (PM10) y de ozono troposférico (O3) en estos tres esquemas, y evaluar su efecto sobre la calidad del aire, así como el impacto de dicha calidad sobre la incidencia de enfermedades respiratorias. Materiales y Métodos. La información sobre variables meteorológicas y niveles de contaminantes por hora y día pertenece al Instituto de Hidrología, Meteorología y Estudios Ambientales de Colombia. Las estadísticas de enfermedades respiratorias corresponden a la Secretaría de Salud y Ambiente de Bucaramanga. Toda la información corresponde al año 2017. La comparación de los niveles de contaminantes se hizo con base en estadísticas descriptivas, pruebas ANOVA y funciones de densidad. El análisis de los factores que afectan la incidencia de enfermedades respiratorias se basó en un modelo de regresión de Poisson, con las variables climatológicas combinadas en factores obtenidos a través de análisis de componentes principales. Resultados. El ANOVA indicó diferencias significativas en niveles promedio de PM10 entre esquemas de movilidad. Las funciones de densidad muestran una sustancial reducción de PM10 bajo PP2. En el modelo de Poisson, O3 resultó estadísticamente no significativo; el número de casos de enfermedades respiratorias atendidos en centros hospitalarios fue significativamente inferior en PP2 y se decrece con una disminución de PM10. Conclusiones. PP2 permite 48 % de ganancia ambiental en cuanto a emisiones de PM10; bajo PP1 esta ganancia es inferior al 3 %. Ningún esquema contribuye a reducir las ya bajas concentraciones de O3. Una caída del 10 % en los niveles de PM10 disminuye el número de casos de enfermedades respiratorios en 5,6 %. El estudio favorece la adopción del esquema PP2.
Are subalpine species' seedling emergence and establishment in the alpine limited by climate or biotic interactions?
Authors: Dahle Ingrid , Gya Ragnhild , Töpper Joachim P , Vandvik Vigdis
Published: January 2022

Plants are responding to climate change by shifting their ranges to
higher elevations. These range shifts are not happening at the same rate
for all species, for example, subalpine species are generally moving
faster upslope than alpine species, but with large variation within
groups. This asymmetry in migration rates will result in novel
communities and interactions between plant species that have not
previously co-occurred. While seed dispersal is obviously critical for
species’ range shifts, seedling emergence and survival are also major
bottlenecks for successful colonization in new areas. As seedlings
generally constitute the most vulnerable stages in the life-history of
plants, variation in seedling establishment success can potentially be
important determinants of species’ range shift rates. Previous studies
have found that warming per se tends to increase seedling
establishment in alpine climates, but it also increases plant
productivity and thus competition for nutrients and light from the
resident vegetation, which acts limiting on seedling establishment. This
study will attempt to disentangle the relative importance of these
abiotic and biotic factors on sub-alpine species’ seedling emergence and
survival in alpine habitats, to help further understanding and
prediction of future lowland plant colonization in alpine habitats. We
will also explore if species’ life strategies impact their ability to
colonize new locations, predicting that species with resource
acquisitive traits will emerge earlier and faster than resource
conservative species. To address these questions, we will perform a seed
transplant experiment where we assess seedling emergence and
establishment in the alpine. Seeds will be sown in plots with and
without experimental warming, crossed with manipulation of biotic
interactions, and using seeds from both resource conservative and
resource acquisitive subalpine species. In addition, we will explore if
the observed responses are general or context-dependent by replicating
this experiment along a regional bioclimatic precipitation gradient.
Teosofi al-Suhrawardi al-Maqtul dan Mahzab Iluminasionisme dalam Filsafat Islam
Authors: Amin Khairul
Published: January 2022

Islamic mysticism (Sufism) developed rapidly systematically (theosophy) and widely after the birth of speculative theology ('ilm al-kalām). The development is considered to have reached its peak in the hands of Syihab Al-Din Suhrawardi Al-Maqtul (d. 1191 AD) and Muhy Al-Din Ibn 'Arabi (d. 1240 AD). These two Sufi-philosophers that gave a new color that had a different nuance from the muhadditsun, mutakallimun, philosophers, and also a number of Sufis who were strongly tied to text traditions. Although both of them also have a basis of text, their interpretation is so broad, they also have different nuances. Especially the first name has a unique journey in his career, thought and life. Suhrawardi is proposing criticism as well as trying to create a synthesis as a form of criticism and renewal of thoughts that developed before his time. Inspired by the concept of light from the Koran and Al-Ghazalī's Misykat, he tried to connect what he encountered with ancient knowledge while exploring new knowledge, especially regarding the concepts and systems of light, resulting in his new theosophy called Philosophy of Isyraq. This paper will discuss the profile, context, and thoughts of Suhrawardi, especially regarding his Divine Philosophy idea which is based on light.
Keniscayaan Metode Komprehensif dalam Studi Islam: Telaah Pemikiran Ali Syariati
Authors: Abdurrahman Usman Zulkifli
Published: January 2022

This article reveals Ali Shariati's thoughts on methodological issues in studying Islam. The data used are the works of Ali Shariati and relevant literature obtained from library sources and analyzed by qualitative descriptive methods and philosophical approaches. This article finds that Ali Shariati views it as important and necessary to understand Islam in various ways. According to him, the method of understanding Islam is fundamental for socio-political change and the progress of civilization. However, Ali Shariati only offers two approaches to understanding Islam, namely historical and sociological approaches. Based on these findings, this article recommends and supports the claims of urgency and necessity of comprehensive methods in Islamic studies
Retraction Watch: A tool for informing academia about ethical violations in publications
Authors: Balyakina E. A.
Published: January 2022

Retraction is one of the ways to filter low-quality academic publications. Over the last decade, the number of retracted articles from journals has been steadily growing around the world. Information about such articles can be found both on the websites of the retracting journals and in the databases that index these journals. In 2010, two doctors from the United States, Ivan Oransky and Adam Marcus, created an Internet resource – Retraction Watch (RW), which concentrates information obtained as a result of investigations of ethical misconduct leading to retraction of articles. These investigations are conducted by the RW founders themselves, as well as by volunteers. Currently, RW contains information on over 24,000 retractions. The main violations include serious errors in methodology and calculations that lead to incorrect conclusions, manipulation of figures and data, plagiarism and self-citation, duplication of publications, etc. In its posts, RW considers unintentional mistakes, as well as deliberate fraud in order to obtain a position, degree or other benefit. Retractions can result in the withdrawal of academic degrees, dismissal from work, demotion, loss of authority among colleagues. RW posts are released daily and a cumulative RW issue – at the end of each week. The owners of the resource, having no outside funding, offer to subscribe to a paid resource or provide sponsorship assistance to those interested in maintaining and developing it. However, the resource is publicly available, and everyone can subscribe to mailing lists for free. Recent issues have focused on non-peerreviewed articles about COVID-19 that report erroneous scientific findings with possible serious implications for important decisions. In addition, Retraction Watch accumulates information on academic ethics from other sources. This article aims to describe a variety of ethical violations leading to retraction of articles and the consequences of retractions based on RW data. The sample of posts was drawn mainly from the 2021 RW issues.
About what and why we publish in our Journal
Authors: Kirillova O. V.
Published: January 2022

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Pengaruh Solvabiltas dan Profitabilitas Terhadap Harga Saham Perusahaan Jasa Sub Sektor Kontruksi Bangunan yang terdaftar di Bursa Efek Indonesia Periode 2012-2017
Authors: Pujiarti Ellena , Yulita Ima
Published: January 2022

The purpose of this research is to find out the influence of solvability and profitability on the stock price of building construction. The sample of this research includes six companies listed in BEI in the period from 2012 to 2017. This sampling method used in this research is purposive sampling. The data consists of secondary data collected using the documentation method. The result shows that partially solvability and profitability had significant influence on the stock prices.
Utilização dos agregados plaquetários em cavidade cística – relato de caso
Authors: Braga Heloisa Uriarte , Perroni Guilherme Carrilho , Ribeiro Wesley Lorensoni
Published: January 2022

Currently, studies are focused on the clinical use of PRF, which deals with a fibrin membrane rich in platelets and leukocytes, a material rich in autologous platelets and with growth factors, which offers an osteoconductive framework and stimulates the patient’s own cells in order to a regenerative response, offering simplicity and predictability for a wide variety of treatments. The objective of the present study is to expose the clinic of the use of the PRF not filled with extensive bone cavities due to its bone regeneration capacity. Two parendodontic surgeries were performed on patient RCP, male, 30 years old, who presented radiolucent areas at the apex of the upper incisors, suggestive of periapical cyst. After 6 months, the cavity in quadrant 1, filled with PRF, showed satisfactory bone regeneration, despite its extension at the time of cyst removal. However, the quadrant 2 cavity, which was not filled with PRF, and was a much smaller cavity, had not completed bone regeneration after 6 months. As it is a technique that is easy to perform, low cost and with favorable results, it is observed in the report presented a faster bone improvement on the side where the PRF was used, however more studies are examined to prove the effectiveness of the biomaterial.
Conduta frente a uma fratura mandibular parassinfisária bilateral – relato de caso
Authors: Costa César Feitoza Bassi , Santos Elias Almeida dos , Gusmão Tainá Burgos , Loureiro Carolina Eduvirgens , Assis Adriano Freitas de
Published: January 2022

The anterior region of the mandible is a site of insertion of the muscles that support and position the tongue superiorly and anteriorly in the oral cavity. The bilateral fracture pattern in mandibular parasymphysis can result in loss of this support and present of the lingual musculature, putting the upper airway patency at risk. This study aimed to report a case of bilateral parasymphysis fracture, emphasizing therapeutic management in the conduction of the case. Patient victim of physical aggression presented to the hospital emergency unit, showing atypical mobility in the anterior segment of the mandible. The CT scan of the face confirmed the presence of bilateral fracture in the mandibular parasymphysis region. After diagnosis, the patient was hospitalized and surgically approached within 48 hours for open reduction and rigid internal fixation. In the evaluation of mandibular fractures, it is necessary to pay attention to the configurations that are potentially fatal. Fracture of the mandible in the anterior region can impair the patient’s respiratory competence, despite the fact that airway instability is not always present. Thus, the management of cases in immediate care must be individualized, and the patient monitored until definitive treatment.
Artéria labial de calibre persistente: um diagnóstico frequentemente negligenciado
Authors: Silva Júlia Braga da , Rodrigues Bruno Teixeira Gonçalves , Freire Nathália de Almeida , Andrade Bruno Augusto Benevenuto de , Romañach Mário José , Israel Mônica Simões
Published: January 2022

Caliber persistent labial artery (CPLA) is a vascular abnormality in which the main branch of the artery responsible for the blood supply to the lips penetrates into the submucosal tissue without reduction of its diameter, appearing clinically as an elevated and pulsatile nodule on the lips. CPLA can be considered as a common alteration, however, it is a frequently misdiagnosed anormality, since it may share clinical features with other conditions. The aim of this study is to report a case of CPLA in the upper lip of a 33-year-old female patient whose diagnostic hypothesis was salivary gland tumor. Due to its characteristics, CPLA should be considered as a differential diagnosis once evaluating a lip lesion. Furthermore, it is important to be aware of possible complications caused by surgical procedures such as hemorrhage.
Antithrombotic therapy in acute coronary syndromes setting: new clinical guidelines, controversial issues and the role of prehospital stage
Authors: Shalnev V. I. , Petrova N. V. , Lukianova I. Yu.
Published: January 2022

Antithrombotic therapy is a cornerstone of acute coronary syndromes treatment, preventing coronary artery thrombosis development and progression. Early administration of P2Y12 receptor antagonists to patients with acute coronary syndromes (ACS) at the prehospital stage is a common practice and has been supported by the European and Russian Societies of Cardiology guidelines for many years despite the lack of definite evidence for its benefit. Recent clinical trials and registers on ACS treatment have shown no benefit and higher prevalence of bleeding related to the early start of P2Y12 receptor antagonists in NSTE-ACS patients. The latest European and Russian Societies of Cardiology guidelines do not recommend prehospital administration of P2Y12 receptor antagonists. The article highlights the antithrombotic therapy in acute coronary syndromes setting, recent ESC guidelines and its possible implementation in common practice.
ESG approach as a threat factor for the energy industry
Authors: ZAINULLIN Sergei B. , ZAINULLINA Ol’ga A.
Published: January 2022

Subject. This article discusses the development of enterprises of the energy industry in the context of investment reduction, approaches to the problem of investment, and issues of changing the policy of energy companies in the field of ecology.
Objectives. The article aims to analyze the implementation of the principles of social responsibility in the energy sector.
Methods. For the study, we used the methods of analysis and synthesis. Analytical reviews, scientific papers, and corporate and social reporting of companies are the key sources of information.
Results. The article presents the results of the analysis of the policy of top energy companies and some recommendations for its change.
Conclusions. The top energy industry companies are employing measures to improve ESG ratings and loyalty from investors, both private and institutional.