bluuebunny/crossref_metadata_2025 huggingface dataset:
A new deepwater lobster, Metanephrops serendipitus sp. nov. (Crustacea, Decapoda, Nephropidae), from lower Miocene of Meljski hrib (Maribor, Slovenia)
Authors: Gašparič Rok , Tshudy Dale , Chan Tin-Yam , Ćorić Stjepan
Published: December 2021

A new species of nephropid lobster, Metanephrops serendipitus sp. nov., is described from the lower Miocene (Ottnangian/Karpatian) in beds of Central Paratethys. Metanephrops serendipitus sp. nov. represents the first fossil representative of the genus from the northern hemisphere and thus extends its known palaeobiogeographical distribution. Additionally, the palaeoecology of the new species is discussed. Similar to extant species of Metanephrops, the fossil nephropid inhabited a fine-grained deep-sea environment, associated with frequent brittle stars.
An owlfly larva preserved in Mexican amber and the Miocene record of lacewing larvae
Authors: Haug Carolin , Haug Gideon T. , Baranov Viktor A. , Solórzano-Kraemer Mónica M. , Haug Joachim T.
Published: December 2021

Neuroptera (lacewings) is today a rather small lineage of Holometabola. These representatives of Insecta have mostly predatory larvae with prominent venom-injecting stylets formed by upper and lower jaws. These impressive larvae can be found not only in the modern fauna, but sometimes also as fossils, predominantly preserved in amber. Here we report a new specimen of a lacewing larva from Miocene Mexican amber, most likely a larva of an owlfly (Ascalaphidae) with large prominent stylets, each with three teeth. These stylets arise from a more or less square-shaped head (in dorsal view) that has distinct eye hills with at least three simple eyes (stemmata) each. The trunk is rather short. Trunk segments possess finger-like protrusions carrying numerous setae, which could have been used to attach camouflaging debris to it. Remarkably, the specimen represents only the second report of a lacewing from Miocene Mexican amber, and the first larva. Additionally, we review the Miocene record of lacewing larvae. It includes otherwise only fossils preserved in Dominican amber and remains rather scarce, with only eight specimens in the literature so far. While there seem to be additional specimens in private collections, the overall number is astonishingly low compared to the numbers in Eocene and Cretaceous ambers. Ecological and taphonomic factors possibly explaining the rarity of lacewing larvae in Miocene amber are discussed here.
Prebiotic experiments simulating hydrothermal vents: Influence of olivine in the decomposition of simple carboxylic acids
Authors: González-López Lucía A. , Colín-García María , Meléndez-López Adriana , Cruz-Castañeda Jorge , Negrón-Mendoza Alicia
Published: December 2021

Hydrothermal systems have been proposed as keen environments on the early Earth where chemical evolution processes could have occurred. The presence of minerals and a continuous energy flux stand out among the most remarkable conditions in such environments. In this research the decomposition of two organic acids was studied. Ionizing radiation and thermal energy were the sources selected for decomposition tests, as both are naturally present on hydrothermal systems and probably, they were present on early Earth. Radiation could come from unstable elements in minerals, and heat is the most abundant energy source in hydrothermal systems. As minerals play a key role in prebiotic chemistry experiments and are an essential component on hydrothermal environments, the role of olivine in decomposition was tested. Results indicate that both organic acids highly decomposed when irradiated or heated. Radiation is more efficient than heating in decomposing the carboxylic acids and forming other carboxylic acids. Interestingly, the occurrence of olivine affects decomposition on both heated and irradiated samples, as both the rate of decomposition, and the amount and type of products vary compared with experiments without the mineral. The formation of other carboxylic acids was followed in all samples. Succinic, tricarballilic, citric and carboxisuccinic acids were detected in radiolysis experiments of acetic acid. The radiolysis of formic acid produced oxalic and tartronic. The heating of acetic acid solutions formed succinic, tricarballilic, citric and carboxisuccinic acids. However, the heating of formic acids only generated oxalic acid. The presence of olivine affected the amount and type of carboxylic acids formed in radiation and heating experiments. Natural hydrothermal systems are complex environments and many variables are present in them. Our results reinforce the idea that a combination of variables is necessary to better simulate these environments in prebiotic chemistry experiments. All variables could have affected the prebiotic chemical reactions; and hence, the role of hydrothermal systems in prebiotic chemistry could be much more complex that thought.
Consumption of leafy vegetables in rural households in Ijebu-Igbo, Ogun State, Nigeria
Authors:   Ayetoro Olabisi Onabanjo University Ago–Iwoye Nigeria, Agbelemoge A
Published: December 2021

Problem of low consumption of vegetables by all in order to alleviate nutrition-related diseases is still unresolved. This study investigated the pattern of consumption of leafy vegetables among the inhabitants of Ijebu-Igbo enclave in Ogun State, Nigeria. The instrument of data collection was interview schedule used to collect information from 175 respondents sampled through simple random sampling technique from five quarters in the locality. The head of the household was interviewed and question items ranged from socio-economic characteristics of respondents to handling of and type of leafy vegetables consumed, and awareness of the importance of consumption of these vegetables. Consumption of leafy vegetables which was the dependent variable was measured on an eight point scale. Both descriptive and inferential statistics were used to analyze the data. The descriptive statistics involved frequency tallies, percentages and averages while the inferential statistics used was chi-square analysis ( X 2). The results showed that most (74.9%) of the respondents were literate, having secondary education and above, mostly (69.1%) females, married (56%) and predominantly Christians (74. 3%). They were mostly (37%) traders and (22%) farmers. The level of vegetable consumption was low, an average of 1.57 times weekly in the study area with ‘Ugwu’ being most preferred over other vegetables which were celosia, waterleaf, amaranthus and okra leaf. Only 35.4% of the respondents consumed vegetables adequately but not properly handled or prepared. This is only 31.4% of the recommended intake of 5 times daily. Only 9.1% of them adopted the most appropriate method of preparation and handling of vegetables for maximum absorption of nutrients but the closest method to the recommended method was adopted by most (42%). The results of the hypotheses testing at 95% confidence level showed a significant relationship between marital status (x2=0.26), religion (x2=0.94), awareness level (x2=0.96) and consumption level. The study, therefore, recommended a more strategic awareness-raising campaign and nutrition education to agricultural extension and rural development agencies in order to influence people’s behaviour in making vegetables consumption a lifestyle in the study area.
Performance response, carcass evaluation and economic benefit or rabbits fed sorghum offal-based diets
Authors:   Adeyemi College of Education, Nigeria, Ogunsipe MH , Agbede JO ,   The Federal University of Technology, Nigeria, Adedeji OA ,   Adeyemi College of Education, Nigeria
Published: December 2021

An eight-week feeding trial was conducted to investigate the performance, carcass quality, haematological indices and economics of production of rabbits fed dietary sorghum offal substitute for maize grain. A total of forty (40) weaned rabbits with a mean weight range of 820-850 g were randomly distributed to five treatment diets where 0, 25, 50, 75 and 100% of sorghum offal replaced maize grain in the gross feed composition to give Diets 1 (control), 2, 3, 4 and 5, respectively. Each treatment diet was replicated eight times with a rabbit taken as a replicate. The determined chemical composition of the experimental diets ranged between 17.12% and17.43% for crude protein (CP), 11.48 and 14.89% for crude fibre (CF), 5.04 and 7.74% for ether extract or fat (EE), 54.17 and 56.41% for nitrogen free extract (NFE) and 3069.35kcal/kg to 3241.17ME(kcal/kg). While the results on performance showed no significant difference (P>0.05) in feed intake by rabbits fed the five test diets, there appeared to be significant decrease (P<0.05) in the weight gain and feed conversion ratio of rabbits fed 50 to 100% sorghum offal-based diets. Carcass cuts that showed significant reduction (P<0.05) at 75 and 100% sorghum offal-based diets are the carcass weight, thigh, loin, shoulder and ribs weights. Organs such as liver, kidney, heart and pancreas weights measured were significantly higher (P<0.05) at 75 and 100% sorghum offal-based diets. Haematological profile such as Packed Cell Volume (PCV), Red Blood Cells (RBC), White Blood Cells (WBC), Mean Cell Volume (MCV) and White Blood Counts such as neutrophil and basophil showed significant difference (P<0.05) at 75% and 100% sorghum offal-based diets. The serum metabolites such as albumin, globulin, cholesterol and urea showed a similar trend of significant difference (P<0.05) at 75% and 100% sorghum offal inclusion compared to other test diets. For economic production, the study revealed an optimum inclusion of sorghum offal at 50% (24.60 g/kg in feed composition) for maize grain in rabbit concentrate feed is possible. Above this level, a loss of N23.17 and N13.16 was recorded as evidenced by the cost differential and benefit cost analysis.
Effects of socio-economic conditions of small-scale traders on quality of post harvest tilapia in Kisumu
Authors:   Maseno University, Kenya, Otieno EO , Olielo TK
Published: December 2021

The small - scale fisheries and fish trade sector is important in global and national economies by providing millions with income and consumers with food. Nile perch (Lates niloticus ), Nile tilapia ( Oreochromis niloticus ), and small cyprinid ( Rastrineobola argentea ) form the basis of commercial fishery in Lake Victoria. From 1997 to 2000, East Africa suffered a series of fish export bans due to contamination by Salmonella, cholera epidemics and use of chemicals in Lake Victoria. Kenya thereafter adopted hygiene requirements in European directive 91/493/EEC for fish and fish products. Kenya’s fish production from the lake declined from 180,000 metric tons in 2003 , down to 133,000 metric tons in 2010. Globally, 30% of total fish catch is lost through poor post harvest handling. The objectives of this study were to determine the socio - economic conditions of small - scale fish traders, to investigate hygienic practices in handling, storage and processing of fish, and to isolate and identify human pathogens in both fresh and processed fish sold in Kisumu markets. A structured questionnaire was used to get demographic, socio - economic, safety and quality practices information. Samples of fresh and processed fish were tested for Aerobic Plate Count, Coliform, Escherichia coli and Vibrio cholerae counts. Results revealed that women traders were 81% in number while men were 19% and most of the traders (40%) were aged between 26 and 35 years. The highest level of education attained by majority (51%) of the traders was primary level. The traders’ most frequent income was KES 200 - 399 (USD 3 to 5) a day which cannot sustain a family. Most traders (57%) had additional sources of income to subsidise their needs. Many traders lacked good transport, refrigeration facilities, water, toilet, waste disposal and rubbish disposal. Total plate count was above 10 6 per g which is the maximum allowed. Th e association between Total Plate Count and hygiene quality status of the samples was significant negatively at p value ≤ 0.001. Traders should be trained on hygiene requirements and economic skills for better practices to improve business performance.
Assessment of common bean (Phaseolus vulgaris L.) seed quality produced under different cropping systems by smallholder farmers in eastern Ethiopia
Authors:   Haramaya University, Ethiopia, Oshone K , Gebeyehu S ,   International Institute of Tropical Agriculture (IITA),Zambia, Tesfaye K ,   International Maize and Wheat Improvement Center (CIMMYT), Ethiopia
Published: December 2021

One of the major causes of low yield of common bean in Ethiopia is the shortage and/or inaccessibility of high quality seed. In the Hararghe highlands of eastern Ethiopia, farmers often use common bean seeds produced both under sole crop and intercrop systems. This study was carried out to investigate the physical, physiological and health qualities of common bean seed produced under sole crop and intercrop systems by smallholder farmers of three districts of West Hararghe zone, Eastern Ethiopia. Samples from seed retained for 2011 main cropping season planting were collected from 100 households and tested using standard laboratory procedures. Results indicated that seeds obtained from sole crop were different from those obtained from intercrop system in physical purity and percentage of pathogen infected seeds whereas the physiological quality related characteristics were similar between the two cropping systems. With a mean pure seed proportion of above 98%, all seed samples obtained from sole and intercrop cropping systems met the national seed standard for common bean seed (95%). About 20 and 50% seed samples obtained from intercrop and sole crop, respectively, had seed moisture content below the minimum national standard for common bean seed (12%). Standard germination of seeds of both cropping systems exhibited a wide range of variation with a mean of 75 and 84% for sole crop and intercrop originated seeds, respectively. Common bacterial blight ( Xanthomonas campestris pv. phaseoli ) and Aspergillus flavus were the most common bacterial and fungal diseases associated with the seed samples. Higher percentage of CBB infection was found for sole seeds relative to those obtained from intercrops. It is concluded that in areas where agricultural land is limited, farmers can produce and use common bean seed of acceptable quality produced under sole and intercropping systems provided that appropriate production and post-harvest management practices are followed.
Implementing nutrition interventions in Ghana at district level: Gaps and opportunities
Authors:   University of Ghana, Gongwer CR , Aryeetey R
Published: December 2021

Malnutrition among women and children is an underlying cause of high morbidity and mortality in the developing world. Ghana is one of 36 countries with a high prevalence (> 20%) of chronic stunting in childhood. Although proven and inexpensive technologies and interventions exist to address maternal and child malnutrition, their implementation remains at a low scale in many developing countries, including Ghana. In Ghana, barriers to scaling up nutrition actions have been identified at the national level, yet little is known about the situation at the district and sub-district levels where nutrition interventions are directly delivered. The current study assessed district-level capacity and commitment for accelerating implementation of effective nutrition interventions to address the high burden of maternal and child malnutrition. In June 2010, key informant interviews involving technical officers, clinicians, nurses, and administrative staff, and a desk review of program and administrative reports were conducted in the Omanye District (pseudonym). Using the framework from the WHO landscape analysis of readiness to scale up nutrition actions, interviews explored questions of commitment (financial, planning, collaborations) and capacity (human resources, job aids, skills) to implement nutrition actions in the district. Most key nutrition interventions were being implemented in the Omanye District including growth promotion, micronutrient supplementation, behavior change communication on infant and young child feeding, and a pilot project for community management of severe acute malnutrition. Interventions are challenged, however, by barriers including inadequate financial commitment, low prioritization of nutrition, inadequate personnel, and insufficient job aids. Because nutrition was relatively underfunded in the district, nutrition technical officers had been shifted to perform other or additional tasks. Insufficient investment and inadequate capacity prevents delivery of quality nutrition services in the Omanye District. Interventions that prioritize and improve investment in nutrition actions are needed to optimize nutrition services at the district level in Ghana.
An overview of the sentencing regime for gang members under the Prevention of Organised Crime Act 121/1998 and the potential for restrorative justice
Authors:   Stellenbosch University, van der Linde DC
Published: December 2021

Sec. 10 of the Prevention of Organised Crime Act 121 of 1998 creates a sentencing regime for those found in contravention of the substantive gang-related offences under sec. 9. This contribution provides a brief overview of the sentencing options available when found guilty of one of these substantive offences, against the backdrop of the general principles of sentencing in South Africa. The potential role of restorative justice in gang-related cases is also considered.
Police officers’ discretion and its (in)adequacy as a safety valve against unnecessary arrest
Authors:   University of the Witwatersrand, Tshehla B
Published: December 2021

The Supreme Court of Appeal has ended the recent uncertainty on whether there is a need for the fifth jurisdictional fact in the process of arrest. The result is that South African law is back at the well-known four jurisdictional facts that must be present before a lawful warrantless arrest may take place. This article assesses whether, after the demise of the fifth jurisdictional fact, police discretion can adequately protect the right to liberty. The discussion starts with a contextual background outlining the role of the jurisdictional facts and the emergence and demise of the fifth jurisdictional fact. This is followed by an outline of the legislative framework applicable to arrest, pointing out that the law bestows wide discretion on police officers in the exercise of their duties, including securing the court attendance of accused persons. Relying on relevant decided cases, it is submitted that the courts focus on the police discretion exercised at the point of arrest, not in the process preceding that stage (for example, the choice of method). The central submission is that, given that the only viable pre-court appearance protective mechanism against unnecessary arrests is the proper exercise of police discretion, focus on the exercise of discretion at the point of arrest is not the most prudent and/or effective approach in the quest to protect the right to liberty.
Obtaining redress (damages) for torture committed outside South Africa: A comment on Van Rensburg v Obiang (21748/2014) [2021] ZAWCHC 128 (18 June 2021)
Authors:   University of the Western Cape, Mujuzi JD
Published: December 2021

In Van Rensburg v Obiang, the High Court (Western Cape Division) awarded the plaintiff damages for the torture, unlawful arrest, and detention to which the plaintiff was subjected by the respondent’s subordinates in Equatorial Guinea. However, the court does not clearly explain how the respondent was responsible for the applicant’s torture and the legal basis on which it made the order for damages. In this article, the author argues that the court’s order is debatable for the following reasons. The evidence before the court did not prove that the defendant had committed torture within the meaning of art. 1 of the UN Convention against Torture and sec. 3 of the Prevention and Combating of Torture of Persons Act; some of the acts attributed to the defendant as torture did not amount to torture; there was no legal basis on which the court based its order to award damages to the plaintiff for the torture committed abroad.
Moderating effects of age, employment status and level of education on the predictive utility of the LSI-R for sexual offenders
Authors: Suero Maria Aparcero , Dickinson Ashley
Published: December 2021

Using a Midwestern sample of sex offenders, the current study reports findings on the utility of the Level of Service Inventory-Revised (LSI-R) in predicting recidivism for offenders with a history of sexual crimes. The current study includes data from a sample of 250 sexual offenders over a 36-month period. This study aims to investigate how three variables – level of education, age and employment status – correlate to recidivism, and if they moderate the effectiveness of the tool in predicting future offending. This study found a statistically significant relationship between total LSI-R score and general recidivism, supporting the predictive utility of the LSI-R for sex offenders. These findings imply the need for intervention programmes focused on young sex offenders to reduce their potential for reoffending. The present study contributes to the available research by increasing the knowledge regarding sexual offender recidivism rates.
Keywords: Sex offenders, recidivism, age, level of education, employment
Crisis universitarias y reformas en Francia
Authors: Charle Christophe , Martínez Alexánder
Published: December 2021

Durante los últimos cien años el sistema universitario francés ha estado atravesado por coyunturas históricas de gran transcendencia, ha sufrido profundas transformaciones en varios niveles (demográfico, administrativo, legal, político, social, económico) y se ha visto preso de lo que parece ser un bucle sin salida: reformas anunciadas, promesas incumplidas y proyectos de reforma a corto plazo que no responden a la complejidad ni a las verdaderas necesidades de un sistema educativo en evidente desventaja ante dos sistemas paralelos de formación superior: las Grandes Escuelas y las formaciones profesionalizantes de corta duración. Hoy, la universidad francesa no solo debe hacer frente a una explosión en el número de estudiantes, también a las consecuencias de la pandemia, a la pérdida de horizonte en su función intelectual y científica, a las preocupantes tasas de desempleo juvenil, a la desvalorización de su imagen social y a las medidas económicas de gobiernos interesados en reducir su carga de obligaciones financieras. El presente artículo se propone realizar un recorrido histórico por las últimas grandes transformaciones del sistema universitario francés y plantear algunas explicaciones a lo que parecen males crónicos que piden desde hace mucho una cura razonada y eficaz para enfermedades que ponen en peligro la realización del proyecto de una universidad republicana.
Top Management Team Shared Responsibility and Non-Financial Performance of Star-Rated Hotels in Uganda: The Moderating Role of Innovativeness
Authors: Mercy Arinaitwe , Dorothy Rotich , Catherine Muganda
Published: December 2021

This study aimed to examine the moderating effect of innovativeness on the relationship between Top Management Team Shared Responsibility (TMT) and non-financial performance of star-rated hotels in Uganda. A positivism research philosophy and an explanatory research design with a cross-sectional approach were adopted, while a multi-stage sampling technique; stratified and simple random techniques was used to collect quantitative data using self-administered questionnaires to a sample of 265 managers from 53 star-rated hotels. Both descriptive and inferential statistics were analyzed and a hierarchical regression model was used to test the set hypotheses. Results indicate a positive, significant relationship between TMT Shared Responsibility and non-financial performance. Innovativeness as a predictor of non-financial performance and also exerts a moderating effect on TMT Shared Responsibility and Non-financial performance of star-rated hotels in Uganda. Based on the findings the study concludes that under high level of innovation, TMT Shared Responsibility highly imprives non-financial performance of star rated hotels. Thus, hospitality management should create a conducive environment for innovativeness through research and development, rewarding creative ideas and responding to changes in the hospitality environment as these enhance performance. The novelty of this research resides in the moderating role of innovativeness in enhancing non-financial performance of star-rated hotels. Also, conceptualization of the TMT Shared Responsibility and innovativeness as intangible resources for enhanced performance.
Trade Balance and Oil Shocks in African Oil Exporting Countries
Authors: Ikue Nenubari John , Magaji Lamin , Zeb-Omoni Samuel , Usman Mohammed, , Denwi Joseph
Published: December 2021

This paper is driven by the vast influence oil money have on the current account balance of major oil producing countries in Africa and the role policy measures could play to soften these effects. Dwelling on the nonlinear techniques, two types of Threshold Regression were used to estimate data on 8 African countries from 1995-2019. The results show evidence of nonlinear impacts of oil revenue on the current account balances of the 8 countries. The nature of the impact relies significantly on the levels of the threshold variable. Precisely, the estimated threshold benchmark for financial development was 33.34; below this threshold the sensitivity of current account balance to crude-oil shocks is higher and the probability of policy measures to mitigate the effects is low and, beyond the threshold the sensitivity of current account balance to crude-oil shocks is low and the probability of policy measure to mitigate the effects is higher. The finding suggested among others that crude-oil shocks is not the primary problem of the current account imbalance of oil-exporting countries rather the nature of the domestic economic policy environment.
Knowledge, Attitudes, Self-Efficacy of Children About Prevention of Sexual Violence Against Children
Authors: Tisnawan Muhammad Fasya , Suwarni Linda , Selviana Selviana , Vidyastuti Vidyastuti , Lestari Widya
Published: December 2021

Child sexual violence is a global problem and tends to increase from time to time. The lack of knowledge, attitudes, and self-efficacy in children about the concept of sexual violence is a contributing factor to sexual violence against children. However, data on children's knowledge, attitudes, and self-efficacy regarding the prevention of sexual violence are still limited. This study aimed to describe children's knowledge, attitudes, and self-efficacy towards the prevention of sexual violence and the incidence of sexual violence in children. This research is quantitative with a cross-sectional study approach. The population of this study was children aged 12-17 years in Pontianak City, with a total sample of 396 people. Proportional random sampling was used in six sub-districts in Pontianak City. Data analysis used univariate analysis in the form of percentages. The study results found that 68.9% had poor knowledge of sexual violence against children and its prevention, 55.8% were unsupportive of sexual violence, 47.5% had low self-efficacy in preventing sexual violence, and 56.6% of children had experienced sexual violence. A comprehensive intervention strategy is needed for parents as the first environment known to children to prevent sexual violence against children.
THE FUTURE OF LANGUAGES FOR SPECIAL PURPOSES IN THE ERA OF PROGRESSING MANAGEMENT
Authors: Jurin Suzana
Published: December 2021

The authors will give some definitions of the language of special purposes used in multinational business, and they will also describe some characteristics of this language on the morphological level and the level of word-formation. The corpora they are using for this analysis is the corpora found in management reports of German multinational companies. Through this analysis, the authors trace the development of such a language and they observe specific models used in management reports. Results of such an analysis will give facts for further discussions about the future of languages for special purposes in the management of multinational companies.
THE LOGISTICS OF SELLING A DESTINATION’S TOURISM PRODUCT∗
Authors: Berc Radisic Branka , Basan Lorena
Published: December 2021

Tourism demand is becoming increasingly more discerning. It expects a well-designed and diverse product. This can be achieved with properly organised receiving-tourism facilities and services, and an array of attractions and entertainment events. Parallel to enhancing attractiveness, it is also necessary to strengthen and intensify internal and external marketing to ensure that a destination product and, in particular, its segments will find customers on the market.
Aplicação de Laser em Lesões Bucais de Pênfigo Vulgar - Relato de Caso Clínico
Authors: E Silva Pereira Karina
Published: December 2021

O pênfigo vulgar é uma doença autoimune e rara, que geralmente acomete indivíduos de meia idade. As lesões orais do pênfigo vulgar normalmente são os primeiros sinais da doença. Apresentam-se clinicamente como múltiplas e extensas ulcerações, cobertas por uma pseudomembrana, sendo bastante dolorosas, provocando dificuldade de mastigação, fonação e deglutição. O laser de baixa intensidade apresenta-se como um auxiliar no tratamento de lesões ulceradas. É um método não invasivo, eficaz e de baixo custo, sendo utilizado com o objetivo de diminuir a dor na cavidade oral e estimular a cicatrização das lesões, facilitando a ingestão de alimentos e a higiene oral adequada, elevando a qualidade de vida do paciente. Paciente, 41 anos, gênero feminino, foi admitida no Hospital de Doenças Tropicais do Tocantins da Universidade Federal do Tocantins (HDT-UFT) proveniente da UPA de Araguaína com com relato de perda de peso (+- 9 Kg) e lesões em cavidade oral já cerca de 3 meses. Após avaliação dermatológica, em conjunto com a avaliação odontológica, constatada a presença de lesões em pele e mucosas características de lesões por doença autoimune, realizada a manobra para constatação do sinal de Nikolsky, apresentando sinal positivo e com o resultado do exame histopatológico foi fechado o diagnóstico de pênfigo vulgar. Foram realizadas três aplicações de laser sobre as lesões da cavidade oral, e após oito dias de internação a paciente evoluiu com melhora do aspecto clínico das lesões orais, redução da dor, ingestão de alimentos mais sólidos e ganho de peso, recebendo alta hospitalar em bom estado geral. O presente caso clínico demonstra a importância da atuação multidisciplinar para o estabelecimento diagnóstico precoce de doenças com manifestações bucais como o pênfigo vulgar, favorecendo o estabelecimento do tratamento e melhorando o prognóstico do paciente. Ademais, a aplicação do laser de baixa intensidade foi extremamente importante no que tange à redução da sintomatologia dolorosa e cicatrização das lesões orais, pois demonstrou eficácia a partir da primeira sessão, contribuindo para o bem estar geral da paciente.
PENGGUNAAN KONSEP RULES-IN-USE OSTROM DALAM ANALISIS PERATURAN PEMANFAATAN AIR DI KAWASAN KONSERVASI: STUDI KASUS TAMAN NASIONAL GUNUNG GEDE PANGRANGO
Authors: Dwi Siswantoro Rudy , Kartodihardjo Hariadi , Hendrayanto Hendrayanto , Dudung Darusman Dudung Darusman
Published: December 2021

This study aims to analyze the substantial weaknesses of water utilization regulations in wildlife reserves, national parks, forest parks, nature tourism parks, and their effects on individual or organizational decision-making and actions. The research location is in the area of Taman Nasional Gunung Gede Pangrango (TNGGP). The analysis of this research is limited to Environment and Forestry Ministerial Regulations No. P.18/MENLHK/SETJEN/KUM.1/4/2019, Law No. 17 of 2019, and Environment and Forestry Ministerial Regulations No. P.6/MENLHK/SETJEN/KUM.1/1/2020. Regulatory analysis is carried out by identifying the characteristics of content of the regulations and comparing them with the conditions of water utilization in TNGGP to find out the implications of regulations on participant behavior and performance. Issues and problems are collected through interviews with participants. Furthermore, the regulations are analyzed using Ostrom's rules-in-use concept. The findin , based on the concept is that there is a discrepancy in the three regulations that all regulate water utilization permits in the conservation areas. This is mainly due to weak institutional strengthening among decision makers as well as laws and regulations made according to the interpretation of the government which often do not consider the conditions of the community.
Cure Kinetics of Samarium-doped Fe3O4/Epoxy Nanocomposites
Authors: Jouyandeh Maryam , Ganjali Mohammad Reza , Mehrpooya Mehdi , Abida Otman , Jabbour Karam , Rabiee Navid , Habibzadeh Sajjad , Hamed Mashahdzadeh Amin , García-Peñas Alberto , Stadler Florian J. , Saeb Mohammad Reza
Published: December 2021

There was a question on “how lanthanides doping in iron oxide affects cure kinetics of epoxy-based nanocomposites?” To answer, we synthesized samarium (Sm)-doped Fe3O4 nanoparticles via electrochemical method and characterized it using FTIR, XRD, FE-SEM, EDX, TEM, and XPS analyses. The magnetic particles were uniformly dispersed in epoxy resin to increase the curability of the epoxy/amine system. The effect of the lanthanide dopant on the curing reaction of epoxy with amine was explored by modeling DSC experimental data based on model-free methodology. It was found that Sm3+ in the structure of Fe3O4 crystal participates in cross-linking of epoxy by catalyzing the reaction between epoxide rings and amine groups of curing agents. In addition, the etherification reaction of active OH groups on the surface of nanoparticles reacts with epoxy rings which prolongs the reaction time at the late stage of reaction where diffusion is the dominant mechanism.
Question Answering Survey: Directions, Challenges, Datasets, Evaluation Matrices
Authors: Pandya Hariom , Bhatt Brijesh
Published: December 2021

The usage and amount of information available on the internet increase over the past decade. This digitization leads to the need for automated answering system to extract fruitful information from redundant and transitional knowledge sources. Such systems are designed to cater the most prominent answer from this giant knowledge source to the user’s query using natural language understanding (NLU) and thus eminently depends on the Question-answering(QA) field. Question answering involves but not limited to the steps like mapping of user’s question to pertinent query, retrieval of relevant information, finding the best suitable answer from the retrieved information etc. The current improvement of deep learning models evince compelling performance improvement in all these tasks. In this review work, the research directions of QA field are analyzed based on the type of question, answer type, source of evidence-answer, and modeling approach. This detailing followed by open challenges of the field like automatic question generation, similarity detection and, low resource availability for a language. In the end, a survey of available datasets and evaluation measures is presented.
A method for evaluating the correctness of the illumination of virtual objects in mixed reality systems
Authors: Antonov Vladimir Sergeevich , Sorokin Maxim Igorevich , Zhdanov Dmitry Dmitrievich
Published: December 2021

The work is devoted to the study of the impact of virtual objects in virtual, augmented and mixed reality systems on the quality of human visual perception. The features of the operation of virtual, augmented and mixed reality systems, the principles of image formation of the virtual and real worlds and the problems of their combination are described. For mixed reality systems, the basic principles of building systems, their specifics and the principles of forming an image of the real world are described. The specific reasons for the formation of the conflict of visual perception in mixed reality systems are considered. There are three main causes of conflict that can be overcome in modern mixed reality systems: the position and type of the light source; the correct formation of shadows from virtual sources on the image of real-world objects; and the intensity of radiation, including the radiation diagram. A method for evaluating the correctness of the formation of illumination of virtual objects in a mixed reality system and its influence on the quality of visual perception is proposed. To evaluate the proposed methodology, a number of test scenes with correct and incorrect lighting of virtual objects have been developed. The assessment of the quality of visual perception was carried out on a test group of 24 people with experience in computer graphics systems. The quality was evaluated on a good/bad scale. Based on the results of the expert assessment, a conclusion was formed that defines the requirement for building a lighting system for virtual objects in mixed reality systems.
Application of the boundary detection method to the problem of recognizing the situation
Authors: Karandeev Alexander Andreevich , Osipov Vladimir Petrovich , Baluta Victor Ivanovich
Published: December 2021

This paper presents the results of one of the solutions to the problem of increasing the speed of decision-making by an intelligent agent when modeling the behavior of complex systems on a virtual electronic polygon. Such a training ground is currently considered as an instrumental platform for testing technologies for training intelligent agents in conditions of varying complexity in order to subsequently transfer the developed methods to real objects for solving practical problems. As an example, the control of a robotic device operating in an enclosed space is considered. The article describes the technology of reducing the volume and dimension of the processed data in order to increase the responsiveness to changes in the situation and the development of solutions for moving a robotic device. The technology is based on the preprocessing of video images for the formation of a training sample, as well as the procedure and results of deep learning of a convolutional neural network. The paper uses an open source library of OpenCV computer vision algorithms implemented in C / C++. It is shown that focusing on the selection of object boundaries can significantly reduce the amount of data for analyzing the situation and increase the speed of decision-making by the robot to move.
Information visualization with network services tools
Authors: Zharina Evgeniya Sergeyevna , Riesen Yulia Sergeevna
Published: December 2021

Data visualization finds its application in many disciplines as the modern equivalent of visual communication, and at the same time does not belong to any specific field, but has its own significance in the presentation of information, ready-made data through the use of visualization tools. In the process of scientific communication, the problem arises of the possibility of methods for presenting information that will be understandable to the user. Therefore, in the process of the exponential growth of the documentary flow of information, the need for compression of information, visibility increases, while maintaining the integrity of the display of the main idea and compact generalization of data. The article discusses data visualization as a way of presenting information and options for using interactive network services to visualize contextual information. Using specific examples, the application of such technologies (services) is tested and presented to present ready-made data or information, which is a more visual, accessible way for perception, understanding and memorization. The study of online services as data visualization tools can be applied and have practical value in educational processes. The aim of the study was: search and study of effective methods of data presentation and clearly demonstrate the use of this method through online services as data visualization tools. The relevance of the work consists in the use of methods for presenting information as services and tools for automating the presentation of analysis, stages or results of work.
Automating the creation of engineering training WebGL applications
Authors: Vlasenko Artyom Nikolayevich , Alexandrova Svetlana Sergeevna , Sadreyev Farid Gaynutdinovich , Voronin Pavel Aleksandrovich
Published: December 2021

The article discusses an add-on (addon) for Blender 3D 2.9x, written in Python 3.9.2, using the Pandas, Jinja2, math and other libraries, which allows you to automate operations for creating animation of bolts, washers, nuts. Allows you to insert additional tools from external files (screwdrivers, keys, arrows, etc.) that are involved in the animation process. Apply materials from an external library, which is a * .blend file with a set of materials based on the names of objects in the scene. Export the resulting scene to WebGL 2.0, using the Babylon.js framework, with the ability to play the resulting animation, which includes traditional animation control buttons, setting the playback speed, the ability to move through animation frames, as well as access to the view from the Blender 3D camera, there where its animation takes place. An interactive list of scene objects is created in the html page, which was automatically generated from the names of Blender 3D scene objects using Jinja2, when you click on the checkbox of the list items, the object is hidden / displayed. Mechanical gear assemblies imported from T-FLEX CAD 3D 17 in * .stl format were used as examples of evaluating the addon's performance. Some features of creating add-ons for Blender 3D are discussed. A comparison of the Three.js library and the Babylon.js framework is given in order to use them to create interactive engineering applications. The add-on for Blender 3D considered in the work can be used not only in the development of educational engineering applications, but also as an element of preparation when creating, for example, IETM.
Visualization and debugging on internal representation graph of Cloud-Sisal programs
Authors: Gordeev Dmitrii Stanislavovich
Published: December 2021

This paper describes the solution of the tasks of visualizing the graphs of the internal representation of Cloud Sisal programs, visualizing the process of computing and debugging Cloud Sisal programs. The formal definitions of the graph with ports and the graph model with ports and attributes are shown. A model of the visualization of the graph model with ports and attributes is described using static images in the SVG format. A model of displaying changes in the graph model with ports and attributes using animations supported by the SVG vector graphics format is described. The connection of graphic animations displaying changes in visual styles and changes in the attributes of the graph model with ports is implemented using Petri nets. It describes the modeling of calculations corresponding to the functions of a given Cloud Sisal program using the hierarchical Petri nets, where the transitions correspond to the functions, and the places of arguments and the parameters of the corresponding functions. Also described modifications of hierarchical Petri nets, ensuring the functionality of the breakpoints and editing the arguments or the results of functions at activated breakpoints for debugging purposes by adding additional places and transitions. Thus, for the obtained Petri nets, the possibility of changing markup of places in the process of functioning is considered.
Educación empresarial en intenciones de emprender: validación de un instrumento en estudiantes de negocios en Tamaulipas, México
Authors: Morales Sáenz Francisco Isaí , Medina Quintero José Melchor
Published: December 2021

Los emprendedores son esenciales en el desarrollo económico de las sociedades, por lo que conocer y entender los factores que impactan en las intenciones de emprender es de suma importancia. El objetivo de esta investigación es determinar los factores de éxito que impactan en las intenciones de emprender en los estudiantes universitarios de las carreras de negocios en el noreste de México. Se aplicó un instrumento a 141 estudiantes, con la finalidad de llevar a cabo un análisis factorial con ayuda del software estadístico SPSS versión 24. Los resultados, muestran cinco factores principales: la educación empresarial, las intenciones, el control conductual percibido, las actitudes y por último, las normas subjetivas. Los hallazgos permiten tener una mejor percepción de los factores que influyen en las intenciones de emprender de los estudiantes universitarios y pueden contribuir a la creación y diseño de programas de formación empresarial más adecuados que impulsen esta actividad.
El Rol de los Organismos de Gestión de Destinos y la Competitividad Sostenible de los Destinos Turísticos: Caso México
Authors: Valero Quezada Ana María
Published: December 2021

Los organismos de gestión de destinos (OGD/DMO) según la literatura, son la pieza clave y fundamental para el logro de comunidades sostenibles. En sí, es el órgano a cargo del marketing y la gestión de recursos de un destino. En México, la figura OGD/ DMO no existe como tal, las Oficinas de Convenciones y Visitantes (OCV) y los Burós de Convenciones y Visitantes (BCV), desempeñan las funciones de marketing. Los objetivos del estudio son: entender el rol de las OGD para la competitividad sostenible y analizar si estas organizaciones realizan las funciones de una DMO. Se analizan seis organismos gestores de destinos a través de la metodología del estudio de caso. Los resultados demuestran que en su mayoría los organismos gestores en México no han podido conseguir un balance entre competitividad y sostenibilidad, ni encontrar la fórmula para manejar la complejidad de las relaciones entre los diferentes actores del turismo.
JUSTICIA ALTERNATIVA: UNA EXPLICACIÓN DE SU COMPLEJIDAD A TRAVÉS DEL DISEÑO AXIOMÁTICO
Authors: Rico Pérez Lázaro , Gaytán Bertruy Ivonne A. , Ramírez Armas Guillermo
Published: December 2021

En el presente trabajo, se presenta un ejemplo práctico relacionado con el derecho familiar para explicar la complejidad del conflicto social y presentar una solución al problema, a través de los mecanismos alternativos de resolución de controversias empleados en la justicia alternativa utilizando la metodología del diseño axiomático en las ciencias sociales. Los resultados muestran que mediante esta metodología, que tiene un sustento matemático, la complejidad de un problema disminuye si los recursos o alternativas de solución se incrementan. Por lo tanto, se concluye que por medio de la metodología del diseño axiomático se pueden resolver conflictos sociales, la cual ha sido validada en otras áreas del conocimiento.
Littera Aperta
Authors: Littera Aperta
Published: December 2021

Littera Aperta