bluuebunny/crossref_metadata_2025 huggingface dataset:
Poor nutritional status affecting blood donor deferral pattern at blood centre of North-East region of India
Authors: Maheshwari Ashish , Kumari Nawanita , Prakash Satya
Published: March 2020

Background: Due to the stringent criteria for the selection of blood donors, donor deferral rate is increasing day by day, leading to a decrease in donor base for the blood bank. This study was done to analyze the incidence of deferral rate and deferral pattern to review the donor recruitment and retention policy and to highlight the role of nutrition improvement.Methods: A retrospective observational single-centre study was conducted in the department of transfusion medicine of North-East region of India from April 2018 to April 2019.Results: During the study period, a total of 3920 donations were made, and a total of 1992 donors were deferred. The overall deferral rate was 33.6% with male deferral rate was 29.4%, and the female deferral rate was 78.4%. Low haemoglobin and low weight contribute around 50% of total deferral.Conclusions: Analysis of donor deferral in a specific region is of utmost significance. Strategies to improve the health status of the population will help to increase donor pool in future, making easy availability of blood. The nutritional programme should be initiated for this group of deferred donors.
The impact of physical disability on activities of daily living of physically disabled persons attending tertiary care centre of Nagpur using Barthel’s scale: a cross-sectional study
Authors: Raut Roshan U. , Thakre Sushama S. , Thakre Subhash B.
Published: March 2020

Background: Disability reflects the difficulties that the disabled person experiences during physical movement as well as interaction with the society. This restrictions act as barrier for executing daily living activities which results into poor health outcome and increased dependency. The objective is to study impact of physical disability on activities of daily living (ADL) of physically disabled person.Methods: A present cross-sectional study was undertaken at Indira Gandhi government medical college, Nagpur. Physically disabled persons aged more than 18 years of age attending outpatient department for disability were included in this study. This study was carried out from 1st May to 31st September 2018. In all total 83 subjects were enrolled in this study. For assessment of activity of daily living Barthel index was used. Descriptive statistics (frequencies and percentage) were obtained and data was analysed by using Microsoft Excel and Epi-Info version 7.2.Results: In all 83 rural subjects were considered for final analysis. Out of 83 subjects 49 (59.04%) were male and 34 (40.96%) were female. Mean±SD age in years was 40.5±12.9. Majority of study participants were belonging to class IV and V category of socio-economic status. Activities such as transfer, mobility, and stair climbing showed greater impact of physical disability. It was found that 18.1% respondents required major help for transfer as an ADL.Conclusions: It is clear from the present study that the activity of daily living is impacted due to disability. In every activity domain it was found that majority were independent.
The persistent challenges and strategies for effective rehabilitation among obstetric fistula patients at Kitovu Mission Hospital, Uganda: a qualitative study
Authors: Atuhaire Shallon , Odukogbe Akin Tunde A. , Mugisha John F. , Ojengbede Oladosu A.
Published: March 2020

Background: Obstetric fistula poses a great physical, psychosocial and economic burden to girls and women in low and middle-income countries. About 53% of the obstetric fistula patients may live with untreated fistula for more than a year, thus patients require rehabilitation as they await repair and after repair. Little qualitative research exists on rehabilitation particularly on the challenges and effective strategies that inspired this study.Methods: A cross-sectional qualitative research approach used in-depth interviews and key informant interviews to collect data from 10 obstetric fistula patients who had been registered by the Urogynecology Department, Kitovu Hospital within two years before the time of data collection status and 12 key informants who include hospital staffs engaged in the management of fistula and patients’ partners who were involved in caregiving. Data were analyzed thematically using ATLAS.ti 7.5.Results: The major constraints encountered during rehabilitation were limited resources for practice, inadequate counseling especially among immediate relatives, and inadequate capital for self-sustainability and limited employment opportunities. Key informants also mentioned the issue of limited resources, budget constraints, inadequate supervision and follow up of patients. Only one patient who had not had fistula repair had knowledge of rehabilitation. To address the challenges, the participants suggested the need for rehabilitation despite repair status. They required more knowledge about sustainable livelihood programs and cash grants.Conclusions: The patients identified socioeconomic, institutional and political challenges to their rehabilitation.  They emphasized the need for improved political commitment, adequate budget, and resource allocation and regular support supervision to ensure their effective rehabilitation.
Artificial intelligence: future impacts, challenges and recommendations on healthcare services
Authors: Patel Deepkumar , Kore Shruti Ashok
Published: March 2020

In this report, we review the market impact of artificial intelligence (AI) in healthcare and future predictions. AI is a rapidly advancing technology in healthcare. It provides rich and relevant information to patients and healthcare providers with on-demand medical and clinical confidence, AI can greatly advance healthcare professional and patient communications. Interest and investment in artificial intelligence continues to grow. At the same time there exists some practical challenges that will determine the course of this market trend. We will discuss the macroeconomic, ethical and legal challenges that pertain to this industry and make recommendations to the healthcare executives.
Regulação jurídica das novas tecnologias no Direito Administrativo brasileiro: impactos causados por Uber, WhatsApp, Netflix e seus similares
Authors: Hachem Daniel Wunder , Faria Luzardo
Published: March 2020

O artigo objetiva analisar os impactos que o desenvolvimento de novas tecnologias tem gerado no âmbito do Direito Administrativo brasileiro, buscando identificar qual a melhor forma de regular, a partir de instrumentos jurídicos, essas novas realidades. Nesse sentido, foram escolhidas três áreas típicas de serviço público para estudo: o serviço de transporte individual de passageiros, o serviço de telecomunicações e o serviço de radiodifusão de sons e imagens. Esses campos foram intensamente impactados nos últimos anos pelo surgimento de tecnologias como Uber, WhatsApp e Netflix. É indiscutível que inovações disruptivas como essas causam enormes transformações nas bases tradicionais do regime jurídico-administrativo. A conclusão principal do artigo é a de que nesse novo tempo a doutrina administrativista se vê obrigada a repensar diversos conceitos e institutos jurídicos que já tinha por consolidados, como forma de possibilitar a melhor regulação jurídica para as novas tecnologias, sabendo que em cada campo específico será necessário o desenvolvimento de soluções próprias para os problemas que estão surgindo nesses últimos anos.
EFEITO DE VISITAS DOMICILIARES NA MANUTENÇÃO DAS ATIVIDADES DE VIDA DIÁRIA DE ADULTOS EM PÓS-OPERATÓRIO
Authors: Pinto António Manuel Rocha Fonseca , Paz Elisabete Pimenta Araújo , Carvalho Amâncio António de Sousa
Published: March 2020

Objetivo: avaliar os efeitos da implantação de um programa de visitas domiciliares (VD) a pessoas adultas nas Atividades de Vida Diária (AVD). Método: estudo quasi-experimental, com usuários de um centro hospitalar do Norte de Portugal, aos quais se aplicou a escala Hip Disability and Osteoarthritis Outcome Score LK2.0. O tratamento de dados foi realizado através do SPSS. Resultados: a maioria dos participantes era do sexo masculino (61,4%) e pertencia à faixa etária dos 65 anos ou mais (65,9%). Não se verificou um efeito significativo, na interação do programa de VD, sobre o compósito multivariado (AVD Observação1 e AVD Observação2) MANOVA: p= 0,164, mas média da pontuação do domínio AVD nos dois grupos em comparação, aumentou da Observação1 para a Observação2, sendo o aumento mais pronunciado no Grupo Experimental. Conclusão: O programa de VD teve algum efeito na melhora da média do domínio AVD, contribuindo ligeiramente para a autonomia do usuário.
Sosyal Hizmet Uzmanlarının Mesleki İletişimlerinde İnsan Hakları Dilinin İnşası: Bir Metafor Araştırması
Authors: ÖNGEN KÖSE Çağıl , HATİBOĞLU KISAT Burcu , ÖZATEŞ GELMEZ Özge Sanem
Published: March 2020

Bu çalışmanın amacı, sosyal hizmet eğitimine devam etmekte olan lisans öğrencilerinin, insan haklarını ve sosyal adaleti gerçekleştirme hedeflerini nasıl kavramlaştırdıklarını metafor analizi aracılığıyla anlamaktır. Öğrencilerin bu iki kavram çerçevesinde ürettikleri metaforlar analiz edilerek, hakim kültürel değer yargılarının insanı odak alan mesleklerin temel becerilerinden biri olan iletişimi nasıl etkileyebileceği değerlendirilmiştir. Böylece mesleki iletişimin insan hakları dilini kullanmasının önemi tartışmaya açılmıştır. Öğrencilerin insan haklarına ilişkin ürettikleri metaforlar; insan haklarının neliği, insan haklarının korun[a]maması, ve insan haklarında ısrar etme şeklindedir. Öğrencilerin sosyal adalet kavramına dair ürettikleri metaforlar ise benzer biçimde sosyal adaletin neliği, sosyal adaletin sağlan[a]maması ve sosyal adalette ısrar etme temaları altında ele alınmıştır. Araştırma sosyal hizmet bölümü lisans öğrencilerinin, birey, grup ve toplulukları dezavantajlı ve incinebilir kılan ekonomik, toplumsal, politik, kültürel koşullar konusunda bilgi sahibi olduklarını ve insan hakları perspektifini, sosyal adalet bağlantısıyla ele aldıklarını göstermektedir. Böyle bir perspektifin gelişmiş olması, mesleki iletişimde insan hakları dilinin kullanılacağına dair umutvar bir öngörüde bulunmayı sağlamaktadır. Ancak öğrencilerin geliştirdiği kimi metaforlarda, mesleki iletişimde insan hakları dilinden hayırseverlik diline kayılmasına zemin hazırlayabilecek hakim kültürel değer yargılarının izlerine de rastlanmaktadır. Bu açıdan öğrencilerin, insan hakları dilinin önündeki tuzaklara ilişkin farkındalık geliştirerek insan hakları ve sosyal adalet değerlerini içselleştirmelerini ve kültürel yetkinliklerini geliştirmelerini hedefleyen bir eğitime ihtiyaç duyulduğu görülmektedir.
Evaluando la Resiliencia de Modelos de Deep Learning
Authors: Rojas Elvis , Nicolae Bogdan , Meneses Esteban
Published: March 2020

Los modelos de Aprendizaje Profundo se han convertido en una valiosa herramienta para resolver problemas complejos en muchas áreas críticas. Es importante proveer confiabilidad en las salidas de la ejecución de estos modelos, aún si se producen fallos durante la ejecución. En este artículo presentamos la evaluación de la confiabilidad de tres modelos de aprendizaje profundo. Usamos un conjunto de datos de ImageNet y desarrollamos un inyector de fallos para realizar las pruebas. Los resultados muestran que entre los modelos hay una diferencia en la sensibilidad a los fallos. Además, hay modelos que a pesar del incremento en la tasa de fallos pueden mantener bajos los valores de error.
Influence of Family Financial Socialization on Academic Success in College
Authors: Sabri Mohamad Fazli , Gudmunson Clinton G. , Griesdorn Timothy S. , Dean Lukas R.
Published: March 2020

Explicit parent–child financial socialization is one way that parents may help children feel less stress in college and increase their academic performance. To test this assumption, we used family financial socialization theory to inform multivariate analysis of variance (MANOVA) and structural equation models (SEM). The results largely support the theory. Participants were 752 college students from a U.S. university. Specific findings indicate that students from more affluent families were more often taught to budget. Parent–child teaching/training was strongly associated with felt parental–financial influence and fewer worrisome academic behaviors because of economic pressure. Students who felt greater parent–financial influence and experienced fewer effects of economic pressure, achieved higher college grade point averages (GPAs). An implication of this study is the importance of strengthening support for financial learning in families.
Kognitivno-vedenjska obravnava samopoškodbenega vedenja v mladostništvu
Authors: Dolenc Barbara
Published: March 2020

Namen prispevka je predstaviti kognitivno-vedenjske strategije za obravnavo mladostnic in mladostnikov, ki se samopoškodujejo, kar je lahko v pomoč vsem, ki se v klinični praksi srečujejo s tovrstno problematiko. Samopoškodbeno vedenje je opredeljeno kot samozastrupitev ali samopoškodba in se navadno pojavi med 11. in 15. letom starosti. V obdobju mladostništva je razširjenost tovrstnega vedenja med 12 in 23 %, med klinično populacijo pa je pogostost takega vedenja še večja. Med najmočnejšimi napovedniki tveganja za samopoškodbeno vedenje so psihiatrične bolezni. Mladostniki pogosto poročajo tudi o občutkih kronične praznine, odtujenosti in izolacije, o brezupnosti, nemoči, neljubljenosti, nizki samopodobi in nizki frustracijski toleranci. S samopoškodbenim vedenjem so povezane predvsem težave v uravnavanju čustev ter šibke spretnosti za reševanje problemov. Če mladostniki, ki se samopoškodujejo, ne poiščejo pomoči, se lahko samopoškodbeno vedenje stopnjuje v svoji resnosti, ter hkrati predstavlja močan napovednik tveganja za samomor, zaradi česar je obravnava tovrstnega vedenja izrednega pomena. Pri obravnavi samopoškodbenega vedenja se je kognitivno-vedenjska terapija izkazala kot eden izmed učinkovitih ukrepov. Znotraj obravnave je poudarek na uravnavanju čustev, obravnavi disfunkcionalnih misli in prepričanj, okrepitvi na področju vedenjskih spretnosti (kot je reševanje problemov) ter izboljšanju medosebnih odnosov, hkrati pa poudarjamo tudi sprejemajoč, čuječ odnos do sebe in do lastne preteklosti. Raziskave kažejo, da so mladostniki po obravnavi poročali o manj pogostem samopoškodbenem vedenju in samomorilnih mislih, hkrati pa so se zmanjšali tudi simptomi depresivnosti in anksioznosti, izboljšala se je samopodoba, mladostniki so bolje uravnavali svoja čustva in težave ustrezneje reševali.
Kognitivno-vedenjska terapija otrok in madostnikov z motnjami tikov
Authors: Kodrič Jana
Published: March 2020

V članku je predstavljen pregled motenj tikov in empirično utemeljenih kognitivno-vedenjskih tehnik za neposredno zmanjševanje tikov ter učenje učinkovitih strategij spoprijemanja z neugodnimi psihosocialnimi posledicami tikov pri otrocih in mladostnikih. V prvem delu so opisani tiki in motnje tikov, epidemiološki podatki o motnji tikov, potek motnje, pridružene težave in psihosocialne posledice tikov, načini ocenjevanja ter indikacije za zdravljenje. V drugem delu so skladno s kliničnimi smernicami za obravnavo motenj tikov predstavljene kognitivno-vedenjske metode njihovega zdravljenja. Podrobneje so opisane psihoedukacija ter najbolj proučevani in z empiričnimi dokazi podprti vedenjski tehniki, učenje nadomestnega odziva in izpostavljanje s preprečevanjem odziva, ki sta namenjeni neposrednemu zmanjševanju tikov. Navedeni so izsledki empiričnih raziskav, ki potrjujejo njihovo učinkovitost. V članku so predstavljene tudi druge kognitivno-vedenjske tehnike, namenjene spoprijemanju z neugodnimi psihosocialnimi posledicami tikov in pridruženih težav. Članek je sklenjen z opisom zahtev za izvedbo učinkovite kognitivno-vedenjske terapije pri otrocih in mladostnikih s tiki ter razmišljanjem o načinih, s katerimi bi lahko razširili znanje o specifičnih terapevtskih pristopih za obravnavo otrok in mladostnikov s tiki med kognitivno-vedenjskimi terapevti v Sloveniji.
Sustainability of Fish Fillet Processing Industries in Batang District
Authors: Dewinta Astrid Fauzia , Farid Ma’ruf Widodo
Published: March 2020

HighlightsSustainability index from fish fillet industry is important to know because a fishing industry just not looking for feasibility study in economic dimension but all dimension (resources, technology, social, legal and institutional)Multidimension sustainability index from fish fillet processing industry in Batang is included in the category of “Self Sustainable” with a value of 50.39  The dimensions causes of the low sustainability in fish fillet industry are social, legal and institutional, and technology with the value of each dimension that is 48.6; 40.27; 48.9 in means “less sustainable”AbstractThe existence of fish fillet processing industries in Batang are able to have a positive impact on the surrounding community because it can create employment opportunities and increase community income. Therefore, it is necessary to know the importance of the sustainability of fish fillet processing industries to see the prospect of fishery business after a feasibility study. The aims of this study were to analyze the sustainability index value, determine the sensitive attributes of each dimension, and provide alternative management strategies of fish fillet processing industries in Batang. The method of analysis used was Rapfish method which is based on the technique of ordination by putting something measured using MDS on the program of Rapfish G77 Alscal program (VBA and Excel). Status management of fish fillet processing industries sustainability in Batang, which are multidimensionally sustainable, are 50.39. Whereas in other dimensions such as resources 58.20 (quite sustainable), economic 55.33 (fairly continuous), social 48.60 (less sustainable), legal and institutional 40.27 (less sustainable) and technological 48.90 (less sustainable). Based on this results, several management strategies should be prepared including increasing the capacity of government institutions, enhancing the role of fish fillet processing industry on society, increasing the application of technology and infrastructure, increasing the revenue of the entrepreneurs of fish fillet processing industry, preventing decline of quality and quantity of fish resources.
A Multi-Criteria Approach and Sustainability Index as a Consideration on Torpedo scad Fisheries Management in Sunda Strait
Authors: Yonvitner Yonvitner , Boer Mennofatria , Ardelia Vera
Published: March 2020

HighlightsThe main problem to ensure the good management in fisheries was multi species fishPrecautionary approach needed to get a good view of the important criteria in fisheries managementNeeded a multi criteria and index to make a final conclusion of the any criteriaNatural history and population dynamic parameter important input to sustainability indexValidation model in sunda strait as preliminary approach will help to get a good data and resultAbstractTorpedo scad species known are both economic and ecologic important pelagic fish that fishing catch tends to increase last a few decades. For sustainability, in the long term, needed a management strategy that complies with measurable fish population indicators. This effort is a part of the precautionary approach in fiseries management in related exploitation. This research was conducted in Labuan fishing port performed for more than 8 months and then analyzed with population parameters. Composite analysis by multi-criteria approaches found that the average score of Torpedo scad is 1.48 and then grouped as moderate sustainability. Schooling fish, including torpedo scad has been moderate until high sustainability levels. Overall population status in this area refer to moderate potential risk and needs a precautionary approach on management.
Plastic Litter as Pollutant in the Aquatic Environment: A mini-review
Authors: Rimbi Anggraini Rifka , Risjani Yenny , Yanuhar Uun
Published: March 2020

HighlightThe issue of plastic litter and microplastics which is currently of special concern in global particularly IndonesiaThe review of size, colour and shape of microplastics that becomes part of the plastic litterThe observed review highlight of plastic litter and microplastics impact on environmental health particularly aquatic biotaAbstractThe negative impact that comes from plastic litter in the aquatic environment is a scourge for the entire world including Indonesia.Plastic litter has a huge influence on the most biota who lives in symbiosis with along the aquatic environment as it is able to sustainability. Moreover, there are other factors that cause the death of aquatic biota. Nowadays, the negative impact of plastic litter occurs on an ongoing basis through the food chain process which until now has not been well studied. Therefore, it is necessary to do further studies on the influence of the food chain as a vector of plastic litter distribution, particularly microplastic on aquatic biota from the first trophic level to high trophic levels.
Beclabuvir can Inhibit the RNA-dependent RNA Polymerase of Newly Emerged Novel Coronavirus (SARS-CoV-2)
Authors: Dutta Kunal , Shityakov Sergey , Morozova Olga , Khalifa Ibrahim , Zhang Jin , Panda Amiya , Ghosh Chandradipa
Published: March 2020

Recent emergence of novel coronavirus (SARS-CoV-2) in Wuhan, China has resulted more than 14,510 global deaths. To date well-established therapeutics modules for infected patients are unknown. In this present initiative, molecular interactions between well-known antiviral drugs against the Hepatitis-C virus (HCV) have been investigated theoretically against the RNA-dependent RNA polymerase (RdRp) of SARS-CoV-2. HCV and SARS-CoV-2 are both +ssRNA viruses. At 25o C beclabuvir, a non-nucleoside inhibitor of the RdRp of the HCV can efficiently bind to RdRp of the SARS-CoV-2 (ΔGAutoDock = -9.95 kcal mol-1) with an inhibition constant of only 51.03 nM. Both the ΔGLondon and ΔGGBVI / WSA values were - 9.06 and - 6.67 kcal mol-1, respectively for SARS-CoV-2. In addition, beclabuvir also shows better binding free energy (ΔGvina = 9.7 kcal mol-1) than that of the Thumb 1 domain of RdRp of HCV (ΔGvina = 7.7 kcal mol-1). InterProScan has suggested the RNA-directed 5'-3' polymerase activity existed within 549 to 776 amino acid residues of RdRp. Moreover, major interacting amino acid residues were I591, Y621, C624, D625, A690, N693, L760, D762, D763 and E813-N817. Molecular interaction suggests occupancy of beclabuvir inside the active site environment of the RdRp which is essential for viral RNA synthesis. In conclusion, results suggest beclabuvir has high therapeutic potential as an anti-SARS-CoV-2 drug.
Multisensorial Close-Range Sensing Generates Benefits for Characterization of Managed Scots Pine (Pinus sylvestris L.) Stands
Authors: Yrttimaa Tuomas , Saarinen Ninni , Kankare Ville , Viljanen Niko , Hynynen Jari , Huuskonen Saija , Holopainen Markus , Hyyppä Juha , Honkavaara Eija , Vastaranta Mikko
Published: March 2020

Terrestrial laser scanning (TLS) provides detailed three-dimensional representation of the surrounding forest structure. However, due to close-range hemispherical scanning geometry, the ability of TLS technique to comprehensively characterize all trees and especially the upper parts of forest canopy is often limited. In this study, we investigated how much forest characterization capacity can be improved in managed Scots pine (Pinus sylvestris L.) stands if TLS point cloud is complemented with a photogrammetric point cloud acquired from above the canopy using unmanned aerial vehicle (UAV). In this multisensorial (TLS+UAV) close-range sensing approach, the used UAV point cloud data was considered feasible especially in characterizing the vertical forest structure and improvements were obtained in estimation accuracy of tree height as well as plot-level basal-area weighted mean height (Hg) and mean stem volume (Vmean). Most notably the root mean square error (RMSE) in Hg improved from 0.88 m to 0.58 m and the bias improved from -0.75 m to -0.45 m with the multisensorial close-range sensing approach. However, in managed Scots pine stands the mere TLS captured also the upper parts of the forest canopy rather well. Both approaches were capable of deriving stem number, basal area, Vmean, Hg and basal area-weighted mean diameter with a relative RMSE less than 5.5% for all of the sample plots. Although the multisensorial close-range sensing approach mainly enhanced characterization of forest vertical structure in single-species, single-layer forest conditions, representation of more complex forest structures may benefit more from point clouds collected with sensors of different measurement geometries.
Knowledge management in the context of academic libraries: the state of the art in brazilian studies
Authors: Cristiano Lanza Savegnago  , Peterini Marquezan Lorena Inês , Daniel Luís Arenhardt
Published: March 2020

The objective is to identify and analyze, based on the state of the art, how Knowledge Management (KM) has been approached in university libraries. This is a bibliographic search, based on theses, dissertations and papers available in the Digital Library of Theses and Dissertations of the Higher Education Personnel Improvement Coordination, as well as in the Journal Portal, from 2009-2018. We found 13 papers (dissertations and theses), of which 6 were selected due to their proximity to the research theme. In the Journal Portal were recovered 584 papers that, after a “floating reading”, were selected 9. The results show that Knowledge Management has been approached through comparative study, instrument proposition to diagnose or manage information and knowledge in an integrated way, experience reports on Knowledge Management practices, among others. However, in most of the investigated institutions, KM is adopted in a non-systematic way, decreasing it effectiveness.
Characterization of chert in the Dammam Formation (Eocene), Kuwait: Clues to groundwater silicification processes
Authors: Khalaf Fikry Ibrahim , Thiry Médard , Milnes Anthony , Alnaqi Rehab
Published: March 2020

Conspicuous chert horizons occur as discontinuous bands and isolated nodules in dolostones in the Eocene Dammam Formation, which is exposed in the southeast of Kuwait. The Formation has never been deeply buried, and so chert formation is likely to have resulted from silicification processes at or near the land surface. Erosional reworking of the chert constrains its formation to a time period between the late Eocene and the Mio-Pliocene. As there is no significant source of silica in the dolostones, the chert was formed from silica imported from other sources. This process, together with the specificity of chert to particular non-bedding horizons, suggests that silicification is related to discrete locations of the groundwater table during landscape incision and resultant groundwater discharge in the region. Detailed petrographical studies demonstrate that “chertification” was initiated by precipitation of nanoglobules of silica (opal-A) from supersaturated groundwater solutions flowing through voids formed concomitantly by dissolution of dolomite. Subsequently, silica was precipitated as more crystalline forms of chalcedony, microquartz, and megaquartz from successively less saturated groundwater. The most likely mechanism for triggering the precipitation of silica is considered to be significant cooling of the groundwater as it neared the landsurface and came into contact with a cold regolith terrain. Precipitation of disordered forms of silica (opal-A) occurred at the cold front: progressively more crystalline phases formed as the host rock was warmed by the inflowing groundwater and its degree of supersaturation diminished. If our interpretation is correct, this “chertification” process could have been initiated during global cooling related to one of the glaciations recorded during Oligocene and Miocene times.
Investigation of Coolant Local Hydrodynamics in the Mixed Core of the VVER Reactor
Authors: Dmitriev S. M. , Gerasimov A. V. , Dobrov A. A. , Doronkov D. V. , Pronin A. N. , Ryazanov A. V. , Solntsev D. N. , Khrobostov A. E.
Published: March 2020

The article presents the results of experimental studies of the local hydrodynamics of the coolant flow in the mixed core of the VVER reactor, consisting of the TVSA-T and TVSA-T mod.2 fuel assemblies. Modeling of the flow of the coolant flow in the fuel rod bundle was carried out on an aerodynamic test stand. The research was carried out on a model of a fragment of a mixed core of a VVER reactor consisting of one TVSA-T segment and two segments of the TVSA-T.mod2. The flow pressure fields were measured with a five-channel pneumometric probe. The flow pressure field was converted to the direction and value of the coolant velocity vector according to the dependencies obtained during calibration. To obtain a detailed data of the flow, a characteristic cross-section area of the model was selected, including the space cross flow between fuel assemblies and four rows of fuel rods of each of the TVSA fuel assemblies. In the framework of this study the analysis of the spatial distribution of the projections of the velocity of the coolant flow was fulfilled that has made it possible to pinpoint regularities that are intrinsic to the coolant flowing around spacing, mixing and combined spacing grates of the TVSA. Also, the values of the transverse flow of the coolant caused by the flow along hydraulically nonidentical grates were determined and their localization in the longitudinal and cross sections of the experimental model was revealed. Besides, the effect of accumulation of hydrodynamic flow disturbances in the longitudinal and cross sections of the model caused by the staggered arrangement of hydraulically non-identical grates was determined. The results of the study of the coolant cross flow between fuel assemblies interaction, i.e. between the adjacent TVSA-T and TVSA-T mod.2 fuel assemblies were adopted for practical use in the JSC of “Afrikantov OKB Mechanical Engineering” for assessing the heat engineering reliability of VVER reactor cores; also, they were included in the database for verification of computational hydrodynamics programs (CFD codes) and for detailed cell-based calculation of the reactor core.
Certainty of Linear Interrelation of Technical and Economic Parameters of Power Units of 300 МWt Thermal Power Stations
Authors: Farhadzadeh E. M. , Muradaliyev A. Z. , Rafiyeva T. K. , Rustamova A. A.
Published: March 2020

For 300 MWt gas-and-oil-burning power units which durability exceeds the estimated one, when comparing and ranking, it is necessary to take into account not only efficiency indicators (for example, the specific consumption of conventional fuel), but also indicators of reliability and safety. In practice, this is exactly what is being done. However, it is being done just by intuition. An intuitive approach solves this problem, but not always certainly. It would seem that there is a quite fully developed mathematical apparatus for regression and correlation analysis, a set of algorithms and calculation programs. But there is one specific feature that, if it is not taken into account, further increases the risk of an erroneous decision. The fact is that the average monthly data on the technical and economic indicators of power units do not belong to the samples from the general population that correspond to the normal distribution law, the latter being a necessary condition for using such methods. This is a non-random sample from a finite set of multidimensional data. Naturally, the methods of classification of multidimensional data are not simple; they require the development of special calculation programs that recommend solutions for maintenance and repair, load distribution, etc. The article presents only one, but very important issue of the problem, viz. the assessment of the reliability of the assumption about the linear relationship of technical and economic indicators. Its solution will simultaneously demonstrate difficulties in comparing the efficiency of aging power units. It is noted that the known and practically used method for assessing the reliability of the linear regression equation, based on the construction of a “confidence corridor” or “uncertainty band”, does not allow one to answer the main question, viz. whether the relationship of the considered technical and economic indicators corresponds to a linear one. A new method for evaluating this relationship is proposed, based on constructing a fiducial domain of possible regression line implementations. It is shown that for small values of the number of sample implementations, a significant part of independent samples has a correlation coefficient exceeding 0.9.
Internet marketing organization with the use of intellegent and block chain technologies
Authors: Vishniakou U. A.
Published: March 2020

The purpose of this work is to analyze methods, approaches, technologies, and means of Internet marketing (IM), using both known technologies and developing new ones: intellectual and blockchain. The objectives of the analysis are to identify trends in the development of Internet marketing in the digital economy with the use of intelligent and blockchain technologies, and to develop new structural solutions.

The analysis of the use of intelligent technologies in marketing activities (MA) using cloud computing (CC) is carried out and its features are determined. Proposals have developed for improving Internet marketing in an integrated environment (traditional network and cloud one) using intelligent and blockchain technologies. It is proposed to develop IA on the basis of a family of intelligent agents for building intelligent marketing information systems (IMIS). The use of blockchain technology in IM for controlling resources and marketing operations is shown. A new concept for the development of IM and IIMS is presented, on the basis of which approaches to the organization of IMIS for communication between enterprises, research institutes and universities are developed. The structure of an intelligent portal based on multi-agent technology that unites developers and consumers of startups has been developed. Blockchain technology is used to control and guarantee the authorship of startups and signed contracts.

As IM development trend, the development of models for joint activity of intelligent agents in the cloud environment to support decision-making using blockchain technology to legally secure the authorship of innovations is proposed. There are two areas of development of intelligent marketing systems: adaptation in digital markets and support for innovative activities with the consolidation of contracts based on blockchain technology.
Perspectivas de futuro en el aprendizaje del paisaje
Authors: García de la Vega Alfonso
Published: March 2020

La revisión del currículum proporciona un enfoque educativo, cuanto menos sesgado, sobre el paisaje. Desde 2000, la aparición del Convenio Europeo de Paisaje y las sucesivas recomendaciones para orientar y concretar las intervenciones educativas se han obtenido algunos logros significativos. Entre otros, se han publicado proyectos de investigación y las recomendaciones dedicadas a la educación de los paisajes. El paisaje se convierte en aglutinador de los contenidos curriculares, bajo una perspectiva globalizadora e interdisciplinar. En este trabajo se muestran dos recursos didácticos, el itinerario didáctico y las geotecnologías, vinculadas con el conocimiento y valoración de los paisajes. El primero posee un recorrido disciplinar y educativo consolidado. Sin embargo, la tradición muestra diferencias temporales y espaciales significativas en cuanto al planteamiento metodológico. El segundo muestra una presencia más reciente y dominante. La aplicación de las tecnologías en el aula y en los itinerarios es un hecho. La incorporación de las geotecnologías en la vida ciudadana constituye un reto de futuro sobre la didáctica de la Geografía. Este trabajo muestra algunas miradas didácticas que guardan muchos de estos temas en relación con el paisaje. Asimismo, se ofrece una revisión sobre las investigaciones en la didáctica de la Geografía y sobre la literatura gris con el fin de sugerir nuevas líneas de investigación en la didáctica del paisaje y la aplicación en el aula.
A method for obtaining flexible broccoli varieties for sustainable agriculture
Authors: Ciancaleoni Simona , Negri Valeria
Published: March 2020

Background
The use of high inputs in agriculture has resulted in few varieties (hybrids and pure lines) used in all agricultural systems. Also varieties of vegetables, including broccoli , for organic and low-input agriculture, are almost exclusively hybrids, since there are very few specific breeding programs and varieties for sustainable agriculture systems .
A strategy to overcome this issue is the adoption of specific breeding programs for developing heterogeneous varieties (i.e. synthetics, open pollinated varieties, composite cross populations and mixtures). In fact, heterogeneous varieties are able to evolve and adapt to specific agro-climatic conditions.
The a im of this study was to develop a method (an Evolutionary Breeding Program, EBP) for obtaining heterogeneous varieties of broccoli and test its efficiency in developing highly diverse varieties, as needed in sustainable agriculture.
A synthetic variety originated from a landrace was multiplied in different environments for 3 cycles and morpho-phenological and genetic diversity of the derived populations were assessed.
Results
The presented result e d s presented are the first and unique indication about the efficiency of a short-time EBP for an allogamous species like broccoli.
Few morphological changes were observed among varieties multiplied in different environments with different agro-climatic conditions. This could be probably due to the initial genetic diversity of the landrace from which the populations were selected and also to the great plasticity of the crop. However, SSR data highlighted a genetic differentiation among populations multiplied for two/three years across Europe and in Central Italy , that was not so evident when considering morphological data only .
Conclusions
Few years of multiplication in different environments resulted in genetically differentiated broccoli populations that none the less preserved the original genetic diversity and productivity level and appear to evolve in relationship to different environments: the applied EBP is useful for developing heterogeneous materials for sustainable agriculture.
The effect of yoga on sleep quality and insomnia in women with sleep problems: a systematic review and meta-analysis
Authors: Wang Weili , Chen Kuang-Huei , Pan Ying-Chieh , Yang Szu-Nian , Chan Yuan-Yu
Published: March 2020

Background: To examine the effectiveness and safety of yoga of women with sleep problems by performing a systematic review and meta-analysis. Methods: Medline/PubMed, ClinicalKey, ScienceDirect, Embase, PsycINFO, and the Cochrane Library were searched throughout the month of June, 2019. Randomized controlled trials comparing yoga groups with control groups in women with sleep problems were included. Two reviewers independently evaluated risk of bias by using the risk of bias tool suggested by the Cochrane Collaboration for programming and conducting systematic reviews and meta-analyses. The main outcome measure was sleep quality or the severity of insomnia, which was measured using subjective instruments, such as the Pittsburgh Sleep QualityIndex (PSQI),Insomnia Severity Index (ISI), or objective instruments such as polysomnography, actigraphy, and safety of the intervention. For each outcome, a standardized mean difference (SMD) and confidence intervals (CIs) of 95% were determined. Results: Nineteen studies in this systematic review included 1832 participants. The meta-analysis of the combined data conducted according to Comprehensive Meta-Analysis showed a significant improvement in sleep (SMD =−0.327, 95% CI=−0.506 to −0.148,P<0.001).Meta-analyses revealed positive effects of yoga using PSQI scores in 16 randomized control trials (RCTs), compared with the control group in improving sleep quality among women usingPSQI (SMD = −0.54; 95% CI = −0.89 to −0.19; P = 0.003). However, three RCTs revealed no effects of yoga compared to the control groupin reducing insomnia among women using ISI (SMD = −0.13; 95% CI = −0.74 to 0.48; P = 0.69).Yoga was not associated with any serious adverse events. Discussion: This systematic review and meta-analysis demonstrated that yoga intervention in women can be beneficial whencompared to non-active control conditions in term of managing sleep problems.The moderator analyses suggest that participants in the non-breast cancer subgroup and participants in the non-peri/postmenopausal subgroup were associated with greater benefits, with a direct correlation of total class time with quality of sleep among other related benefits.
Evaluation of Microvascular Network with Optical Coherence Tomography Angiography (OCTA) in Branch Retinal vein Occlusion (BRVO)
Authors: Chen Lulu , Yuan Mingzhen , Sun Lu , Wang Yuelin , Chen Youxin
Published: March 2020

Purpose: To evaluate changes of microvascular network of macular and peripapillary regions and to provide a quantitative measurement of foveal avascular zone (FAZ) in unilateral BRVO patients.
Methods: Forty-seven unilateral BRVO patients and forty-seven normal controls were enrolled. A 3*3 mm scan centered on fovea followed by a 4.5*4.5 mm scan centered on optic nerve head (ONH) were obtained in BRVO eyes, fellow eyes and control eyes of each individual using OCTA (Optovue Inc., Fremont, CA, USA). Vessel density (VD) in superficial (SVC) and deep vascular complex (DVC) of macula and radial peripapillary capillary (RPC) were automatically calculated. Parameters of FAZ region including size, perimeter, acircularity index (AI) and foveal vessel density 300 (FD-300) were measured.
Results: VDs of SCV and DVC were significantly lower, especially in affected regions, in BRVO eyes compared with fellow eyes ( P <0.05). BRVO affected eyes has larger FAZ size, FAZ perimeter, AI and lower FD-300 compared with fellow eyes (all P <0.05). VD of SVC and FD-300 were lower in fellow eyes compared with normal control eyes ( P <0.05). The average vessel density in whole area and peripapillary area in BRVO eyes were significantly lower compared with fellow eyes ( P <0.05). VD of inside disc in fellow eyes was lower than normal eyes ( P <0.05).
Conclusions: OCTA provided quantitative information of vascular changes in BRVO. FAZ in BRVO eyes showed significant morphological alterations and decreases of VD in surrounding area. Decreases of VD existed not only in SVC and DVC in macular region but also in RPCs in BRVO eyes. Unaffected eyes of unilateral BRVO showed vascular abnormalities in superficial retinal layer, peri-FAZ area and also peripapillary regions.
Key words: optical coherence tomography angiography, retinal vasculature, foveal avascular zone, radial peripapillary capillary, branch retinal vein occlusion
Mono-segment fixation method versus short-segment fixation methods, in treatment of mono-segmental lumbar tuberculosis; using titanium mesh cage with interbody fusion retrospective case-control study.
Authors: Zhang Hongqi , Manini Daudi Romani , Wang Yuxiang
Published: March 2020

Background: 1/3rd-2/3rd of the remaining vertebral height can hold and withstand the standard pedicle screws; some surgeons have adopted affected vertebral fixation to avoid the complications of both long and short segment fixation during surgical correction of lumbar tuberculosis (TB).This study aimed to compare efficacy of mono-segment-fixation versus the short-segment fixation methods with the use of titanium mesh-cage (TMCs) and interbody fusion in the treatment of mono-segmental lumbar spinal TB via single stage posterior-only approach. Methods ： A retrospective review was done among 34 lumbar spinal TB patients. These patients underwent debridement, interbody fusion with (TMCs) by either Mono-segment fixation or short-segment fixation methods. Eighteen patients underwent mono-segment fixation method, group (A). While 16 patients underwent short-segment fixation method, group (B). Fusion, deformity correction, and decompression were done within the affected segment in group (A), while for group (B) fusion extended one level above and below the affected vertebrae . Operation time, intra-operative blood loss, degree of deformity correction and neurological functions were analyzed. Results: Comparing group (A) vs (B), average operation time in minutes (mins) for group A was 144.2±16.5, group B was 170.3 ± 25.0 (P=0.001). Average intraoperative blood loss in milliliter (mls) was 502.8±151.9 for group (A) and 742.5±143.2 for group (B) (p ˂0.05). The mean cobb’s angle between group A versus group B; preoperative was 23.8 ± 6.5 0 vs 22.2±9.2 0 (p=0.6), immediate post operatively was 8.0±3.5 0 vs 8.3±5.7 0 (p=0.847) and at final follow-up was 8.9±3.1 0 vs 9.2 ± 5.9 0 (p=0.866) respectively. Correction rate between group (A) vs group (B) was 15.7±3.8 0 vs 13.9±5.5 0 (p=0.285) and loss of correction was 1.2±0.7 0 vs 1.1±0.7 (p=0.817) respectively. No significant differences in neurological recovery between the two groups were founds. Conclusion: Under precise conditions: mono-segment fixation method, debridement, interbody fusion with TMCs, and posterior instrumentation can effectively reconstruct the spine, maintain stability and correct kyphosis deformity similar to short-segment fixation method. Also, it can relieve pain and improve neurological symptoms. When used in combination with anti-TB chemotherapy in the treatment of mono-segmental lumbar TB via a single-stage posterior-only approach.
Coping with Wolf-Hirschhorn Syndrome: quality of life and psychosocial features of family carers
Authors: Berrocoso Sarah , Amayra Imanol , Lázaro Esther , Martínez Oscar , López-Paz Juan Francisco , García Maitane , Pérez Manuel , Al-Rashaida Mohammad , Rodríguez Alicia Aurora , Luna Paula Maria , Pérez-Núñez Paula , Blanco Raquel , Nevado Julián
Published: March 2020

Background : Wolf-Hirschhorn Syndrome (WHS) is a rare, congenital disease characterized by a distinctive facial phenotype, seizures, intellectual disability and developmental delay, and pre and postnatal growth requiring lifelong care. The psychosocial status of the family caregivers of children diagnosed with WHS is unknown. This study aims to characterize the sociodemographic and psychosocial profile of WHS caregivers and analyze how these variables impact their quality of life (QoL) and well-being. Results: The sociodemographic and clinical profile of 22 Spanish caregivers of children with WHS and the characteristics of those affected have been described. Significant relationships were found between sociodemographic and psychosocial characteristics among caregivers. The impact on the parents' QoL and negative relationship with the symptomatology were assessed. The use of engagement strategies such as problem focused coping was associated with improved psychological QoL and social support. Conclusions: WHS caregivers share similarities in their profile and needs with caregivers of children with other rare diseases. Pychosocial support groups involving parents caring for children with the same disease could improve caregivers’ well-being and QoL by strengthening their social support network and using positive coping styles. Keywords: Wolf-Hirschhorn syndrome; 4p deletion; caregivers; quality of life; coping; depression; social support; spirituality.