bluuebunny/crossref_metadata_2025 huggingface dataset:
The effect and molecular mechanism of hypoxia on proliferation and apoptosis of CD133+ renal stem cells
Authors: Liu Hong , Liu Cui , Qu Yan
Published: August 2020

Congenital hydronephrosis caused by ureteropelvic junction obstruction (UPJO) eventually leads to renal interstitial fibrosis and atrophy, after a series of pathophysiological problems. Renal repair after injury depends on renal stem cells. This study aimed to determine the expression of renal stem cell marker CD133 in children of different ages and the regulatory effect of stem cell microenvironment. Renal stem cells from children of different ages were identified and screened out by flow cytometry in the study. Children with hydronephrosis were divided into neonates, infants, preschool age, school age, and adolescents groups. A hypoxic cell model prepared with CoCl2 was developed to detect the effect of hypoxia on the proliferation and apoptosis of renal stem cells. The effect and molecular mechanism of hypoxia-inducible factor 1-alpha (HIF-1α) on the proliferation and apoptosis of renal stem cells were also explored. Both hypoxia and HIF-1α significantly promoted the proliferation of renal stem cells and inhibited cell apoptosis. HIF-1α could bind to the promoter region of proliferating cell nuclear antigen (PCNA) and PROM1 (CD133) to mediate their transcription and expression. The content of CD133+ renal stem cells was the highest in the neonatal group and it decreased with the increase of age. Taken together, this study clarified the effect of age on the content of human renal stem cells and determined the regulatory mechanism of hypoxia on renal stem cells. We expect our results to provide a research basis for the treatment and clinical application of renal stem cells.
Ecological analysis of agricultural environmental management problems in the Central Chernozem Region
Authors: Almobarak Falak , Mezhova Lydia A.
Published: August 2020

Abstract. Land resources of the Central Chernozem Region are intensively used in economic activities that have affected the degradation of the natural environment components. The 100-year observation period revealed changes in biogenic components and humus in the regions soils. To determine the environmental problems of agricultural environmental management, we have calculated modular indicators of geochemical impact of various agricultural sectors. We have calculated the modular indicator of agricultural impact assessment on agricultural systems of the Central Chernozem Region. In order to preserve land resources it is important to quantify the impact of agricultural production. To assess the impact the authors have introduced three types of coefficients: taking into account the agricultural, livestock and technogenic impact. They can be used as the main diagnostic indicators to identify environmental problems. The coefficients make it possible to determine trends in environmental management and by the results of geochemical analysis environmental problems and the degree of impact of different types of agricultural production are identified. Balance violations of the substances cycle in forest-steppe landscapes have been revealed. The landscape and geochemical approach reveals migration processes, the cycle of substance and violations of self-regulating properties of the natural landscape. The analysis of potassium and phosphorus distribution is important in agrochemical aspect. The coefficient was calculated based on the mass of matter introduced and removed from the soil in relation to their content in the soil. The degree of geochemical agricultural impact exceeds the natural geochemical background. It gives an opportunity to define negative features of agricultural nature use. A complex geochemical analysis of different nature users will make it possible to determine the degree of their impact on the natural environment in the region. Soil transformation in agrosystems is accompanied by ecological losses both for the natural environment and for life activity of the population. Due to wide application of chemicalization means for implementation of the agricultural intensification program, it became necessary to determine quantitatively the geochemical load on the landscape in order to optimize and protect it. In this regard, issues of renewal of natural material and energy resources are relevant for agricultural production.
Vegetation cover and microtine rodents spatial distribution under conditions of Nizhny Novgorod oakwood
Authors: Boryakova Elena E.
Published: August 2020

This paper deals with the problem of the connection between small mammals spatial distribution and the vegetation cover. The study was carried out during the summer period of 2018 and 2019 in the landscape protected area Oakwood of the NNSU Botanical Garden in the province of Nizhny Novgorod. Three relevs were set up in various plant associations: Ulmetum pulmonarioso-asaroso-aegopodiosum, Acereto-Tilietum pulmonarioso-impatienosum (noli-tangerae), Querceto-Acereto-Tilietum asareto-aegopodiosum. A standard geobotanical description was carried out according to the generally accepted method using a series of Raunkier sites registration. Microtine rodents were trapped by standart traps and live traps. The caught animals turned out to belong to 2 genera and 3 species: the bank vole Myodes glareolus Schreber, the pygmy wood mouse Apodemus uralensis Pallas, and the field mouse Apodemus agrarius Pallas. The low population size of animals, as well as the fact that Apodemus agrarius is a co-dominant, may indirectly indicate the anthropogenic pressure in the investigated oak groves. Ecological plasticity of the species Myodes glareolus has been confirmed. Bank voles inhabit micro-habitats with the average data of illumination as well as shaded ones. In general, the vegetation projective cover and the presence of Norway maple undergrowth are crucial for the microtine rodents spatial distribution. Small mammals choose sites with a minimum number of Acer platanoides undergrowth, and gravitate to places where the projective cover of grass has moderate rates (from 35 to 50%). The Principal Component Analysis (PCA) using a vegetation cover species spectrum showed the presence of a significant factor for microtine rodents, which is associated with nitrophilous species (common nettle and touch-me-not balsam). The presence of those plants may indicate a significant anthropogenic pressure on the vegetation cover. In addition, it is important that plants belong to a particular eco-coenotic group. The species Myodes glareolus and Apodemus agrarius differ on the nemoral factor, and their ecological niches do not overlap.
The influence of the family-educator on the economic, biological and ethological characteristics of the queen honey bee (Apis mellifera)
Authors: Bykov Aleksandr R.
Published: August 2020

This paper discusses the change in the economic, biological and ethological characteristics of the uterus of the honeybee under the influence of the teachers family. This issue is currently of concern to many breeders, as it has not been fully studied. It is the phenotype variability that is the determining component of selection. The method of evaluating the uterus by their key features, which are an integral part of the selection, is described. These key features are peace, loyalty, honey productivity and perseverance on the frame. The author considers the possibility of using non-tribal families (families taken without analysis and selection) as a family-educator, as it most often happens in uterine apiaries. The results show the differences between the groups of mother-sisters from different families-educators. From these results it is clearly seen that different breeds of bee colonies make changes in the useful economic characteristics of the queens, according to their pedigree characteristics. Such changes are unacceptable in this case, and therefore deserve attention. An analysis is made of exactly how the qualitative signs of the uterus change and what is most often worth paying attention to. A more thorough selection of foster families according to their pedigree characteristics is proposed. After all, the future of breeding depends on the quality selection of families-educators, maternal and father families.
Agropyron cristatum (L.) Beauv. as a possible indicator of heavy metal contamination
Authors: Kanibolotskaya Yuliya M. , Krasnopyorova Yelena F. , Kalieva Ainagul B. , Zhumadina Sholpan M.
Published: August 2020

Due to the increasing negative impact of anthropogenic factors on the state of the environment in man-made regions, the possibility of using Agropyron cristatum (L.) Beauv. to detect contamination of industrial areas Ti, Mn, Cr, Fe, Ni, Cu, Zn, Pb, Sr is being considered. To achieve the research goal the authors have analyzed the content of these metals in vegetable (A. cristatum) and soil samples, taken in the suburbs of Pavlodar (the Pavlodar Region, Kazakhstan) at various distances from the operating industrial enterprises with application of the standard techniques. Geobotanic studies have been carried out using classical methods. Agropyron cristatum, being a digressive-active species, under human-induced conditions mostly becomes a dominant or subdominant in plant communities, including areas where it has historically been represented in little abundance. The underground organs of A. cristatum are characterized by high values of Zn biological absorption coefficient at most points; very high values of АCr and АPb at multiple points. For the above-ground organs of A. cristatum, Zn biological absorption coefficient is also quite high; it is appreciably lower for Mn, but higher than for Ni, Cu, Sr, Ti and Fe. A. cristatum can be used as an indicator of environmental pollution by Zn, Cr, Pb and Mn for the area under investigation and in similar conditions for other regions, especially those in the area of metallurgical enterprises.
The composition and state of native and introduced woody species in the zone of railway transport influence in the Kola Polar region
Authors: Sviatkovskaya Ekaterina A. , Saltan Natalya Vlafimirovna , Trostenyuk Nadezhda N.
Published: August 2020

The paper analyzes the state and the diversity of native and introduced woody plants used in landscaping railway stations in 5 cities of the Kola Polar region. The species composition is represented by 22 species, 16 genera, and 9 families. Sorbus gorodkovii (39%) is the most common among trees, Rosa rugosa (44%) is the most common among shrubs. The authors have observed two rare introduced woody species (Larix sibirica Ledeb., Syringa josikaea Jacq. fil.) included in Red Data Books of various ranks. 6 categories of plant state have been identified. Betula pubescens has the largest share of healthy plants among indigenous trees species, Malus baccata and Larix sibirica among introduced species, Rosa pimpinellifolia, Caragana arborescens, Crataegus sanguinea among shrubs in the station territories. Sorbus gorodkovii and Padus avium are in a critical state. The agrochemical soil study showed a low availability of nitrogen compounds and a high content of phosphorus and potassium exchange forms. It has been revealed that the main weakening causes are old age of plants, violation of maintenance technology, and failure to comply with environmental conditions.
A gymnasium student who stepped into the revolution: the initial stage of revolutionary activity of the Bolshevik Serafima Ivanovna Deryabina (1904–1908)
Authors: Gorshenin Aleksandr V.
Published: August 2020

Serafima Ivanovna Deryabina (18881920) is known as a revolutionary who acted in the Ural-Volga region in the early 20th century, starting from the period of the first Russian revolution and ending with the events of the Civil war. The heyday of her revolutionary, organizational and party activities occurred at the Samara stage of life (19151918), but this was preceded by a significant period of formation of the revolutionary woman in the conditions of the first Russian revolution and then in the years of post-revolutionary political reaction. This paper attempts to analyze the conditions for the formation of revolutionary views and the beginning of the underground activities of S.I. Deryabina in 19041908. The author attempts to establish her role among the Bolshevik organizations of Yekaterinburg at that time and to consider the details of the arrests of the young Bolshevik woman. To achieve this goal documents from the Federal (the State Archive of the Russian Federation and the Russian State Archive of Socio-Political History) and regional (the state archive of the Sverdlovsk Region, the center for documentation of public organizations in the Sverdlovsk Region and the Samara Regional State Archive of Socio-Political History) archives were used. These archives as well as published sources help the author to reconstruct the activity of the revolutionary woman within the framework of the historical period and region under study.
Personified correction of micronutrient deficiency as a therapeutic tactic for improving the quality of ejaculate in idiopathic infertility
Authors: Tsukanov Anton Yu. , Satibaldin Danijar A.
Published: August 2020

Introduction. Marital infertility is one of the key medical problems. Almost 50% of infertility in marriage is caused by male infertility. The proportion of idiopathic male infertility is 3040%.
Material and methods. 157 patients with idiopathic infertility were randomized into 2 groups. The main group (MG) (n = 82): conducted a correction of the level of micronutrients in case of their deficiency by the appointment of monocomponent drugs in the maximum permitted daily doses. The control group (n = 75) (empirical therapy with complex drugs) was randomized to subgroup 1 (CG1) (n = 38): complex preparations with L-carnitine were used; and subgroup 2 (CG2) (n = 37): complex multivitamin preparations without L-carnitine were used. To identify micronutrient deficiencies, 93 healthy volunteers who realized a fertile function were examined (their partners were in the third trimester of pregnancy).
Results. Deficiencies of micronutrients were determined: selenium, zinc, vitamins C and E. Correction was carried out for three months with monocomponent preparations. In the exhaust gas, there was a positive dynamics in all parameters of the spermogram. In the control subgroups the ejaculate volume, concentration, total sperm count did not change, an increase in the general and progressive motility was revealed. The proportion of normal spermatozoa increased in MG, CG1 and CG2 groups by 61.9%, 28.6% (in comparison with MG p 0.01) and 20.0% (in comparison with MG p 0.001), respectively. Total mobility increased by 44.5%, 24.5% (compared to MG p 0.05), by 12.0% (compared to exhaust gas p 0.001), respectively. Progressive mobility by 60.4%, 54.5% (compared with MG p 0.05), 14.7% (compared with MG p 0.001), respectively. Pregnancy in MG was 21.9%, in CG1 5.2% (p 0.05) and CG2 2.7% (p 0.05).
Conclusion. Personified correction of micronutrient deficiency in order to improve the quality of ejaculate in idiopathic male infertility was an effective therapeutic tactic. The results obtained suggest that this approach is more pathogenetically justified, which requires further study.
Fesoterodine for the treatment of overactive bladder: pharmacological bases and clinical results
Authors: Kuzmin Igor V. , Al-Shukri Salman Kh.
Published: August 2020

The results of the clinical use of the new anticholinergic drug fesoterodine in the treatment of patients with overactive bladder was presented in the review. An analysis was made of the pharmacological effects of fesoterodine, which provide its high clinical efficacy and good tolerance.
BATIK ANOMART MEDIA ARTS EDUCATION CREATIVITY AND APPRECIATION: CASE STUDY UKM BATIK ANOMART IN KARTASURA
Authors: Faruq Moh. Yudik Al
Published: August 2020

ABSTRACTBatik is a skill that has high artistic value and has become part of Indonesian culture. Pandono Batik Abstract has unique techniques, patterns and motifs, even more than others, so that it has one style and motif, only one in the world. Given that batik is written batik, the results of the patterns and motifs of Pandono Batik Abstract also have no limitations on certain standards, tend to be abstract and must always be different, this is the advantage of Batik Pandono Abstract Laweyan Surakarta. This research method is carried out by applying a qualitative approach. Qualitative research is a study conducted by conducting observations, observations and interviews. The strategy that will be used in this study is single-embedded. The purpose of this embedded research is that the research is directed at one goal (one location, or one subject) as its main focus. Nevertheless the parts studied are still related to the overall context to get full meaning.Keywords: Abstract batik, educational media, appreciation
Army recruits of Indian origin: early detection and further prevention of noise induced hearing loss by otoacoustic emission
Authors: Joshi Himanshu , Das Avinash
Published: August 2020

Background: There has been no study on Indian population which has tested ears prone for “noise induced hearing loss”. Also, no study on recruits of Indian origin could be found in the literature, so an attempt has been made to screen the individuals to prevent noise induced hearing loss.

Methods: Otoacoustic emission (OAE) screening is done over recruits before and after first exposure to loud noise of rifle firing in our study. Recruits were followed up at 04 hours, 24 hours, 01 month and 06 months after exposure. Individuals showing variation in OAE at 24 hours were also subjected to pure tone audiometry (PTA) at 01 month and 06 months.  

Results: 98 recruits developed ‘refer’ in OAE at initial 4 hours out of which 67 recruits recovered in 24 hours. Remaining 31 recruits (45 ears) when followed up and screened at 01 month shows ‘refer’ in OAE in 22 recruits (37 ears) and high frequency loss on PTA in 17 recruits (31 ears). At 06 months 16 recruits (28 ears) shows ‘refer’ in OAE and 12 recruits (22 ears) shows dip in high frequency in PTA.

Conclusions: OAE is more sensitive tool for early detection of noise induced hearing loss. This study also correlates time and frequency involved in OAE in detecting early hearing loss as the individuals who show refer in OAE at both 04 hours and 24 hours with both 3 kHz and 4 kHz involved are more prone for noise induced hearing loss in future.
Los renovados alcances del régimen jurídico exorbitante del Derecho contractual publico
Authors: Alianak Raquel Cynthia
Published: August 2020

En el presente escrito, el cuestionamiento radica en si se hace necesario redefinir o repensar –dentro del Contrato Administrativo– la presencia y alcance de fuertes potestades y prerrogativas públicas, como de la esencia de dicho acto jurídico, denominadas aun hoy en día, como las clausulas exorbitantes del Derecho privado. Y para realizar un renovado abordaje de este tema, debemos necesariamente focalizar –como cuestión prioritaria– la finalidad que persigue la contratación publica, esto es, la satisfacción de los intereses públicos, de los intereses de la sociedad involucrados en cada contrato, circunstancia que diferencia a esos actos jurídicos de los contratos del Derecho privado.
Indices of cell energy exchange and endurance in young athletes
Authors: Rylova Natalya V. , Zholinsky Andrey V. , Biktimirova Alina A.
Published: August 2020

Based on the currently available scientific literature, indices of cellular energy status, in particular the ability of elevated levels of carnitine in muscle tissue, may be associated with a protective effect on neuromuscular fatigue. The aim of the study is to investigate the relationship between cellular energy exchange and endurance in young athletes. Materials and methods. The study included children and adolescents aged 12 to 18 years. The main research group (94 young athletes) consisted of two subgroups depending on the nature of the training load - cyclic (46) and game (48) sports. The control group - 37 children engaged in physical education only at school. Special research methods: tandem chromatography-mass spectrometry and cardiorespiratory stress testing. Results. The indices of free carnitine in young athletes, depending on the type of sports load, have significant differences. The use of the Tukey criterion revealed that the content of free carnitine in athletes with cyclic loads is significantly higher than in athletes of game types and the control group. Differences in absolute and relative maximum oxygen consumption (MIC) in the study groups were significant. Evaluation of the absolute index of the IPC showed that in boys - athletes of cyclic sports, the level of IPC is higher than that of athletes of game types and control groups. Relative indices of the IPC show similar trends. Conclusion. It was found that the indices of cellular energy and IPC in young athletes of cyclic sports are significantly higher in comparison with playing sports. With a comprehensive study of the energy status of young athletes, it is possible to predict the level of physical performance. The contribution of the level of free carnitine to the variance of the absolute MIC index is 20.9% (p < 0.01).
Universidades e desenvolvimento regional
Authors: Rego Conceição
Published: August 2020

Esta é a resenha do livro “Universidades e Desenvolvimento Regional – as bases para a inovação competitiva”, publicado em 2018 pelos autores Maurício Serra, Cássio Rolim e Ana Paula Bastos. Visando contribuir com a discussão sobre desenvolvimento regional e universidades, a resenha foi escrita pela autora Conceição Rego, professora na Universidade de Évora, em Portugal.
United Nations of Rendang: Meme dalam Perspektif Strukturalisme Lévi-Strauss
Authors: Hidayat Herry Nur
Published: August 2020

This article analized meme United Nations of Rendang through Levi-Struss structuralism perspective. In this case, social an culture seen as a structure which shows human unconsiuous to structuring a phenomenon. Sign interrelation in United Nations of Rendang as a structure automatically relate to the other meme which is another structure. Those sign convey to the surface structure and reveal the deep structure of this phenomenon. As a result, meme United Nations of Rendang shows rejection on Masterchef jury for the criticism on rendang as surface structure. This surface structure lead to awareness of same region country, awareness of western culinary domination, and a rejection for western culinary domination as deep structure.
NILAI KEARIFAN DALAM BABAD BANYUMAS
Authors: Kuntarto Kuntarto , Widyaningsih Rindha , Riza Chamadi Muhamad
Published: August 2020

Banyumas chronicle has an essential role as a medium of cultural preservation, philosophical meaning, and value from the ancestors to the next generation. This study aims to find religious, social values in the Banyumas chronicle. Banyumas chronicle used as primary data is the Wirjaatmadja Banyumas chronicle version. The data was strengthened by literature studies and interviews with cultural figures from Banyumas, who were concerned about local wisdom studies.  Analysis of values by using the reflection of the character, meaning of occurrence, and occasion in the chronicle. Religious and social values obtained include the teachings of gratitude, religious values, the value of helping, the value of unity, the value of deliberation to reach consensus, the value of justice and general welfare, the value of peace and non-violence, and the value of family and harmony.
Analisis Kontrastif Tindak Tutur Meminta Maaf Dalam Bahasa Jepang Dan Bahasa Sunda
Authors: Haristiani Nuria , Sopiyanti Asti
Published: August 2020

In everyday life when someone did a wrong doing, that someone usually performs apologyspeech act to show his/her responsibilityor remorse. However,apology speech act may be conducted using different strategies influenced by several factors, such as cultural background, social values, social statutes, gender, or even the depth of the remorse felt by the wrong doer. This study aims to determine the level of awareness of apology by Japanese Native Speakers (JNS) and Sundanese Native Speakers (SNS) in an apology situation. Apology speech act strategies used in the same situation to five interlocutors namely 1) Distant lecturer (DT), 2) Closelecturer (DA), 3) Distant senior (KT), 4) Close senior (KA), and 5) Friend (T) were also examined. A Likert scale questionnaire was used to find out about the level of awareness of apology, while Discourse Completion Test (DCT) was conducted to examine about apology speech act strategies used by seventy four (74) JNS and seventy eight (78) SNS participated in the data collection of this study. From the results, the awareness of apology between JNS and SNS both different according to the interlocutors. While in apology strategies used, both JNS and SNS mainly used the expression of apology, acknowledgment of responsibility and offer of compensation. However, there is one striking difference strategy in apologizing between JNS and SNS. SNS frequently used address terms while JNS barely used address terms to their interlocutors.
Distribution Of Batillaria Zonalis (Mollusca : Gastropoda) on Avicennia Marina (Forsk.) Vierh In The Coast Of Banggi, Rembang, Central Java
Authors: Ariyanto Dafit Ariyanto , Bengen Dietriech Geoffrey , Prartono Tri , Wardiatno Yusli
Published: August 2020

Mangroves prove a habitat for Batillaria zonalis as nursery ground, feeding ground and reproductive ground. This research was conducted from September 2016 - August 2017 and to determine the spasial and temporal pattern  with based on mangrove zone  and environmental characteristics. The gastropods and environmental characteristics were analyzed using Principal Component Analysis (PCA). The results showed that significant changes in gastropod assemblages were primarily due to changes in the water quality and season. Correlation between gastropod and physico-chemical parameters in A. marina  revealed significant relationship with gastropod B. zonalis distribution.
Change of Fatty Acids Compositions (Omega 3, 6, 9) from Milkfish (Chanos chanos Forsk) Bekasam Fermented with Different Carbohydrates Sources
Authors: Negari Saga Gerlaping , Dewi Eko Nurcahya , Rianingsih Laras
Published: August 2020

Bekasam is one of fermentation products made from Milkfish (Chanos chanos Forsk). The aim of this study was to determine the effect of different sources of carbohydrates on fermented waste to fatty acid composition. The method used was experimental laboratories using Completely Randomized Design. The treatment applied was the use of different carbohydrate sources of rice, brown sugar and garlic in the milkfish bekasam production using 3 repetitions. The data were analyzed using Analysis of Variance and continued by Honestly Significant Difference test if there was any effect on the treatment given. The results showed that the difference of carbohydrate sources during fermentation process could affect the composition of fatty acids. Lactic acid bacteria use carbohydrate sources as energy to grow and then hydrolyze fat into fatty acids. The best result was bekasam with the sources of carbohydrate of rice with total value of Lactic Acid Bacteria 7,888 log cfu/g, Total Volatile Base Nitrogen value 34,796 mgN/100ml, lipid content 0,055% and the highest fatty acids compositions. The results of the study showed that the use of different sources of carbohydrate on bekasam had significant effect (P<5%) on the fatty acid composition on bekasam.
Marine Bioremediation in Indonesia : Die Before Blossom
Authors: Syakti Agung Dhamar
Published: August 2020

This critical review highlighted the need to booster an application of the environment biotechnology in order to reduce petroleum hydrocarbons contamination in marine environment.  Marine bioremediation can be promisingly applied when the spills occurred. However, absence of policy support from Indonesian government to endorse the private actor’s liabilities when complying the rehabilitation action was no significance while academic research was still far from establishment of fundamental knowledge in marine bioremediation. Thus, if so, it very likely that bioremediation disciplines and application might “die before blossom” in a country that often confronted by the maritime risk contamination of petroleum hydrocarbons on their marine and coastal area.
Age, Growth and Mortality of the Common Carp (Cyprinus carpio) Population in Merdja Sidi Abed Dam, Algeria.
Authors: Lotfi BENSAHLA TALET , BENSAHLA TALET Ahmed
Published: August 2020

We tried to estimate age, growth parameters, condition factor, length-weight relationship and mortality rates (Z, M, and F) of the common carp in Merdja Sidi Abed dam. Cyprinus carpio specimens were captured by long line between April and June 2013 in Merdjea Sidi abed. 220 individuals were collected and weights ranged between 265.5 and 620.3 g while the total length ranged between 26.3 and 35.6 cm. Length-converted catch curve was used to estimate total annual instantaneous mortality rates (Z), natural mortality was calculated using Pauly formula [ln(M) = -0.0152 - 0.279 ln(L∞) + 0.6543 ln(K) + 0.463 ln(T)]. Recruitment patterns were determined from the routine implemented in FISAT II. For all individuals (n = 220) of the common carp, the relationship between total length and body weight was: W = 0.0384 L2.70 (r2 = 0.906) for females and W = 0.0467 L2.653(r2 = 0.976) for males a minor allometry was found for this species, mean condition factor K was estimated at 1.41. The maximum value of recruitment was recorded in March-April period with 19.56 and 15.20 % respectively. The Battacharya method was used to estimate age of individuals that was comprised between 1 and years 3. The equation of Von Bertalanffy growth was: L = 36.75 [1-e-0.46 (t + 0.33)] for all the population. Total mortality (Z), natural mortality (M) and fishing mortality (F) were as follows: Z = 1.08, M = 0.82, F = 0.26 yr-1while exploitation ratio (E) was evaluated at 0.24 indicating an under exploitation of this local resource.
Ludopatía en mujeres y hombres de Baja California, México: Un estudio de las narrativas
Authors: Figueroa Estrada Armando Anuar , Gómez San Luis Anel Hortensia
Published: August 2020

Las adicciones no se limitan al consumo de sustancias, sino que pueden manifestarse a través de conductas que afectan la vida cotidiana de las personas, como la ludopatía o adicción al juego. Al igual que en la adicción a sustancias, las personas adictas al juego experimentan síntomas de abstinencia que los conducen a una pérdida de control de la conducta de juego. Objetivo. Explorar las narrativas relacionadas con la ludopatía en hombres y mujeres de Baja California, México. Método. Estudio cualitativo con diseño narrativo en el que se realizaron entrevistas individuales a 3 mujeres y 2 hombres adultos con adicción al juego. Resultados. El análisis narrativo sugiere que existen antecedentes personales y familiares que facilitan el acercamiento al juego, así como factores socio ambientales en los casinos que contribuyen al proceso adictivo. El juego patológico facilita conductas de riesgo en términos de salud física, mental y sexual; así como de incursionar en actos delictivos y violencia. Conclusiones. Se concluye que existen correlatos entre el proceso de adicción a sustancias y la adicción al juego, y que existen diferencias por sexo que deben considerarse para el tratamiento y la prevención.
Prevalencia y creencias asociadas al consumo de alcohol en mujeres universitarias
Authors: García García Pedro , Trejo Lerma América Gisel , Hinojosa García Laura , Jiménez Martínez Aída Aleyda , Gracia Castillo Gloria Nelly
Published: August 2020

El alcohol es una sustancia psicoactiva con propiedades que originan dependencia física y psíquica; su consumo ha sido relacionado con alteraciones metabólicas, fisiológicas y de conducta. Objetivo. Medir la prevalencia de consumo de alcohol, las creencias del consumo de alcohol y la relación entre ambas variables en mujeres universitarias. Método. Estudio descriptivo, transversal y correlacional. La población estuvo constituida por 138 mujeres universitarias de una universidad privada de la Cd. de H. Matamoros Tamaulipas, México. Se aplicó una cedula de datos y consumo de alcohol, para medir las creencias, se utilizó la escala de balance decisional para el consumo del alcohol elaborada por Maddock (1997). Resultados. Se encontró una prevalencia de consumo de alcohol alguna vez en la vida de 92.8%. Conclusiones. Las prevalencias de consumo de alcohol mostraron relación positiva y significativa con el índice de pros para el consumo de alcohol.
Autopercepción de la adicción a Internet en jóvenes universitarios
Authors: Marín Diaz Verónica , Muñoz González Juan Manuel , Hidalgo Ariza María Dolores
Published: August 2020

El crecimiento vertiginoso de Internet es un aspecto característico de la sociedad actual. Este hecho ha provocado que se hable de una nueva forma de adicción, la tecnológica. Objetivo. Este trabajo realiza un análisis de la autopercepción que los usuarios de Internet tienen sobre su adicción a la misma. Método. Se ha empleado como instrumento de recogida de información el Internet Addiction Test de Young (1998), siendo la muestra objeto de estudio estudiantes universitarios españoles (N=256). Mediante un estudio no experimental y con un diseño descriptivo-correlacional se plantea como hipótesis de partida demostrar que los alumnos perciben tener adicción a Internet. Resultados. Tras la realización del estudio se ha constatado que los estudiantes no perciben tener una adicción a la red, lo que hace rechazar la hipótesis de partida. Conclusiones. Por lo que se puede concluir, que el alumnado presenta un uso problemático de la red y no una conducta adictiva.
Positive perceptions of beer consumption among portuguese university students
Authors: Casanova Joana R. , Matos Margarida Gaspar , Pérez Fuentes María del Carmen , Almeida Leandro S.
Published: August 2020

The abusive consumption of alcohol by college students has negative effects on both individual and public health. Positive expectations about alcohol are related to behaviours and patterns of consumption frequently acquired in adolescence. Objective. This study analyses the impact of individual variables (gender, age at first drink, being away from home, and first option degree course) on beer consumption in first-year college students. The moderating effect of positive perceptions about alcohol consumption will also be considered. Method. The sample comprised 214 first-year college students at a Portuguese public university. Results. Positive perceptions of alcohol consumption had an impact on levels of beer consumption and the rate of beer consumption could be explained by just four student variables: age at first drink, gender, first option degree course, and positive perceptions of alcohol consumption. The indices of model fit were adequate. Conclusions. Interventions targeting reductions of student’s alcohol consumption should consider the effects of positive perceptions of alcohol.
¿Realmente es demasiado corto? Versión breve del cuestionario de adicción a redes sociales (ARS-6)
Authors: Salas-Blas Edwin , Copez-Lonzoy Anthony , Merino-Soto César
Published: August 2020

Las redes sociales impactan positivamente en la cotidianidad, sin embargo, el uso excesivo y descontrolado pueden generar patrones patológicos adictivos. Objetivo. Proponer una versión breve del cuestionario de Adicción a Redes Sociales (ARS-6). Método. Participan 839 adolescentes y jóvenes peruanos (M = 16.17; DE = 3.10). Se implementó un análisis conceptual de ítems basados en el modelo de componentes, se identificaron diferentes modelos de análisis factorial confirmatorio (AFC) para analizar la estructura interna de la escala y de análisis de invarianza de medida (AFC-MG). Resultados. Los modelos AFC identificaron un solapamiento entre las dimensiones (correlaciones >.86) que fue contrastado con un modelo bifactor, además, se implementó un modelo no paramétrico de teoría de respuesta al ítem (Mokken) para el escalamiento de la versión breve. La invariancia de medida para el grupo según género fue identificada en todos sus niveles. Conclusiones. La versión breve presenta adecuada evidencia de validez de su estructura interna y fiabilidad de las puntuaciones para su uso.
Family mealtime against adolescents’ drinking, drug use, and other risk behaviours. Then and now.
Authors: Perasso Giulia , Carraro Elena , Ozturk Yagmur
Published: August 2020

During adolescence, the frequency of family meals may play an important role in both counteracting risk behaviours (e.g., drugs and alcohol use, delinquency, etc.) and in promoting healthy life-styles. Objective. The aim of the present review is to chronologically order and discuss evidence supporting or disconfirming family mealtime’s effectiveness against adolescents‘ risk behaviours. Method. The present work integrated two search-strategies: scientific databanks strategies and retrospective research on sources. Inter-rater quality assessment was applied to obtain three clusters of literature; pioneering studies about nutritional habits, last decades’ evidence, and challenges for future research. Results. Effectiveness of family mealtime in preventing adolescents’ risk behaviours and in promoting healthy lifestyles and positive outcomes is discussed. Conclusions. Open theoretical and methodological questions emerged such as the lack of scientific consensus on how to measure the family mealtime frequency or the need to provide qualitative assessments about the family mealtime experience, among others.
Guanxi social-network ties: Predicting graduate employment with internship host-organisations in China
Authors: Rose Philip
Published: August 2020

Globally internships are utilized to enhance the university learning experience and      improve graduate employment. The expanding application of internships in the graduate recruitment and selection process has traditionally received less attention in the literature, and whilst this trend has crossed national borders, the transferability of this practice has largely been assumed rather than empirically substantiated. Hence, this study investigates how a culturally specific form of social-networking, namely guanxi, impacts on employment outcomes from internships, for graduates within the Chinese context. This study involved the collection of longitudinal data at two time intervals from intern-supervisor dyads (N=303), in order to determine the role of guanxi in predicting the conversion of an intern into an employee with their internship host-organisation. These findings highlight the role of cultural context in shaping and potentially undermining desired graduate employment outcomes from Work-Integrated Learning initiatives such as internships.
Use of digital periodontal data to compare periodontal treatment outcomes in a practice-based research network (PBRN) – a proof of concept
Authors: Peikert Stefanie Anna , Mittelhamm Felix , Frisch Eberhard , Vach Kirstin , Ratka-Krüger Petra , Woelber Johan Peter
Published: August 2020

Background: Scientific studies in dentistry are mainly conducted at universities. However, most patients are treated in dental practices, which differ in many ways from treatment at the university. Through the establishment of practice-based research networks, however, it is also possible to examine studies in a real-world setting in dental practices. For this reason the aim of this non-interventional, observational study was to develop and evaluate a digital procedure to access, extract and analyse recorded clinical data in practices to assess periodontal treatment outcomes.Methods: Participating periodontists were former or active postgraduate students of a master’s course in periodontics in Freiburg who routinely used a digital periodontal diagnostic program. All available stored periodontal patient charts were extracted, anonymized and digitally sent to the study centre.Results: In this study, data were collected from 6301 patients from 9 different practices. Information such as probing depth (PD), bleeding on probing (BOP), mobility, furcation and gingival attachment for 153163 teeth at first visit were successfully transferred to the study centre. During the average observational period of 9.77 years, only 2.8% of all teeth were lost. The number of visits was significantly negatively correlated with BOP (p<0.0001), and the number of BOP-positive sites was significantly correlated with deeper PDs (p<0.001).Conclusion: The presented procedure was able to gather a large amount of practice-based periodontal data, and thus this study may support practice-based research networks. The data indicate that systematic and supportive periodontal therapy is successful on a practice-based level.Trial registration: The study was internationally registered on 4 January 2017 in the German Clinical Trials Register (DRKS 00011448). https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00011448
Pancreatic duct guidewire placement for biliary cannulation as a risk factor for stone residue after endoscopic transpapillary stone removal
Authors: Fujita Akashi , Nakahara Kazunari , Michikawa Yosuke , Morita Ryo , Suetani Keigo , Sato Junya , Igarashi Yosuke , Ikeda Hiroki , Matsunaga Kotaro , Watanabe Tsunamasa , Itoh Fumio , Araki Ryuichiro
Published: August 2020

Background: Recent improvements in stone extraction implements and apparatus have lessened the complexity of the endoscopic bile duct stone treatment. However, despite confirmation of complete removal, cases of residual stones have been reported, which can result in recurrent biliary symptoms, cholangitis, and pancreatitis and considerably increase cost given the need for repeat imaging and/or procedures. To date, risk factors for residual bile duct stones following endoscopic retrograde cholangiopancreatography (ERCP) extraction have not been thoroughly evaluated. This study retrospectively investigated the incidence and risk factors of residual bile duct stones following extraction via ERCP. Methods: We retrospectively reviewed all ERCP cases that underwent endoscopic bile duct stone extraction between April 2014 and March 2019. A total of 505 patients were enrolled and evaluated for the incidence and risk factors of residual bile duct stones after ERCP. Results: The rate of residual stones was 4.8% (24/505). Residual stones were detected by computed tomography (12/24) or magnetic resonance cholangiopancreatography (12/24). In univariate analyses, a large number of stones (P = 0.01), long procedure time (P = 0.005), and performance of the pancreatic duct guidewire placement method (P-GW) for selective bile duct cannulation (P = 0.01) were the factors involved in residual stones. In multiple logistic regression analysis, performing P-GW was retained as the only independent factor of residual stones (adjusted odds ratio, 3.44; 95% CI, 1.19–9.88; P = 0.02).Conclusions: When removing bile duct stones with a pancreatic guidewire in place, paying attention to residual stones is necessary.
Is it the time to implement the routine use of distress thermometer among Egyptian patients with newly diagnosed cancer?
Authors: Aziz Nashwa Abd El- , Khallaf Salah , Abozaid Waleed , Elgohary Ghada , El-Fattah Ola Abd , Elhawary Mai , Khaled Safaa , El-Haffez Azza Abd , Kamel Ehab , Mohamed Sherif
Published: August 2020

Background: The distress thermometer (DT) is an effective tool for identifying distress among cancer patients worldwide. However, DT has not been studied in Egyptian patients. We aimed to study the prevalence of distress among Egyptian patients with different types of cancers using DT.Methods: A total of 550 patients with newly diagnosed hematological and solid cancers who were followed up at 3 Oncology Centers in Egypt were enrolled. They completed a sociodemographic and clinical status questionnaire, the DT and the Problem List (PL) scale.Results: At a DT cut-off score of ≥4, 46% of patients had significant distress, which was related to the tumor site and stage. The most frequent problems reported were treatment decision (64.4%), worry (47%), and fears (44.5%). Participants who had significant distress described 25 out of 36 problems in the practical, family, emotional, spiritual/religious and physical areas. After adjustment to sociodemographic and clinical characteristics, analysis confirmed that insurance, transportation, depression, fear, worry, loss of interest in usual activity, religious concerns, change in urination, fatigue, and sleep, were independent factors associated with significant distress in cancer patientsConclusions: Almost half of Egyptian patients newly diagnosed with cancer reported significant distress. Those who had significant distress described extra problems in the practical, family, emotional, spiritual and physical areas. We recommend the routine use of DT for screening Egyptian patients with cancer, as well as the involvement of the psycho-oncology and social services, at the time of their initial diagnosis.
Phylogenetic analysis of HA and NA genes and clinical characteristics of the co-occurring mutations in HA and NA of influenza A(H1N1)pdm09 viruses during 2015-2017 in Beijing, China
Authors: Liu Yafen , Wang Yue , Liu Baiyi , Cong Xu , Ji Ying , Guo Xiaolin , Gao Yan
Published: August 2020

Background: Influenza A(H1N1)pdm09 viruses have undergone rapid evolution, and in recent years the complementary and antagonistic effects of HA and NA have gathered more attentions; however, the effects of co-occurring mutations in HA and NA on the patients’ clinical characteristics are still poorly understood. In this study, we analyzed molecular epidemiology and evolution of A(H1N1) pdm09, explored co-occurring mutations of HA and NA, and investigated effect of co-occurring mutations on patients’ clinical features.Methods: A(H1N1)pdm09 was confirmed by reverse transcription-polymerase chain reaction. HA and NA genes were sequenced and phylogenetically analyzed. Clinical characteristics of the co-occurring mutations were analyzed statistically.Results: By analyzing the HA and NA gene sequences of 33 A(H1N1)pdm09 viruses during the 2015-2017 influenza season, we found that all the viruses shared high similarities to each other and the HA genes of these viruses exclusively belonged to subclade 6B.1A. Several unreported substitutions in HA and NA proteins were observed, furthermore, co-occurring mutations of HA-V169T, A278S, E508G, D518E and NA-V67I were detected in 30.3% (10/33) A(H1N1)pdm09 virus strains when comparing with vaccine strains A/California/07/2009 and A/Michigan/45/2015 (H1N1). Sore throat was significantly associated with co-occurring mutations in HA and NA of A(H1N1)pdm09 (χ2, P < 0.05).Conclusions: Co-occurring mutations in HA and NA were detected in A(H1N1)pdm09 isolated during 2015-2017 in Beijing. Symptomatically, sore throat was associated with co-occurring mutations in HA and NA of A(H1N1)pdm09. Therefore, studying the effect and mechanism of co-occurring mutations in HA and NA on patients’ clinical features is of note needed.