bluuebunny/crossref_metadata_2025 huggingface dataset:
Reservas de carbono del pasto Cenchrus clandestinus (Poaceae) en los sistemas de manejo tradicional y silvopastoril, en diferentes relieves
Authors: Medina Maria Fernanda , Pérez Maritza , Medina Maria Fernanda , Hurtado Alejandro , Arboleda Elkin Mauricio , Medina Marisol
Published: September 2019

La hierba kikuyu es una planta con alto potencial para integrar carbono en materia orgánica porque utiliza la ruta fotosintética C4, se cree que esta hierba tiene la capacidad de contribuir a la mitigación del calentamiento global. Esto es posible, bajo buenas prácticas de manejo tanto durante el pastoreo como en el período de recuperación de los pastizales. El objetivo del trabajo fue identificar las reservas de carbono en el pasto kikuyu ( Cenchrus clandestinus).(ex Hochst. Chiov.) Morrone) en sus diferentes compartimentos, biomasa aérea (AB) (hojas, tallos y tallos rastreros) y biomasa subterránea (BB) (raíces finas y raíces gruesas o "Stolons") a 20 y 40 cm de profundidad del suelo. Se realizaron seis muestreos sucesivos de acuerdo con el período de descanso del pasto, el sistema de pastoreo (sistema tradicional y silvopastoril) y de acuerdo con la geoforma del terreno (flanco cóncavo (CCF), flanco convexo (CXF), flanco rectilíneo (RF) y relieve plano (FR)). La biomasa aérea se muestreó con cuadros de medición y la biomasa subterránea se muestreó con barrena de raíz. Este experimento se llevó a cabo entre junio de 2016 y junio de 2017 en San Pedro de los Milagros, Antioquia, Colombia. Los resultados obtenidos nos permitieron determinar que las raíces stoloniferous a 20 cm de profundidad, los tallos rastreros muertos y las hojas fueron los compartimentos con las mayores reservas de carbono, que contenían 4,52, 3,58 y 1,9 toneladas de C ha-1, respectivamente. Se encontraron diferencias significativas (p <0.05) entre el relieve plano y las geoformas de flanco rectilíneo para la biomasa de las hojas, y entre el relieve plano y los otros relieves evaluados para las raíces gruesas variables a 20 cm de profundidad. Concluimos que la hierba kikuyu contribuye a mantener reservas de carbono en los pastos. La biomasa producida en cada compartimento por la planta es proporcional al carbono incorporado. La biomasa para raíces finas y gruesas contribuye a la captura de carbono, se obtuvieron alrededor de 2820 kg y 655 kg de carbono por hectárea a profundidades de 20 y 40 cm respectivamente. Debido a la alta producción de biomasa subterránea, de tallos rastreros y su alta capacidad de rebrote bajo condiciones adversas, la hierba kikuyu puede ayudar a reducir la erosión de los suelos de las laderas y mejorar la contribución del carbono al aportar 3.475 kg de carbono por hectárea a 40 cm de profundidad. Lo anterior indica que juega un papel importante en la mitigación de los gases de efecto invernadero, ayudando a conservar los suelos tropicales altos en sistemas de producción de lácteos especializados.
Modelación del efecto de la reproducción colonial de Bubulcus ibis (Aves: Ardeidae) en el flujo de biomasa y energía de los manglares costeros
Authors: Denis Dennis , Curbelo Emerio Alejandro , Ferrer-Sánchez Yarelys
Published: September 2019

Modeling the effect of colonial breeding in Bubulcus ibis (Aves: Ardeidae) on biomass and energy flows in coastal mangrove wetlands. The colonies of wading birds reach thousands of highly grouped nests, which have a marked influence on the characteristics of the soil or the water that surrounds them due to a hyperfertilization effect. This causes the harmful accumulation of nitrogen compounds altering the chemistry of the substrate and causing defoliation and death of vegetation. The impact of these colonies on the mangroves in Cuba has not been evaluated, due to the logistical difficulties involved and the complexity of their processes. Mathematical modeling is a useful tool in these situations, so in this work the estimation of the quantities of biomass, energy and nutrients mobilized in a colony of herons was carried out, through a bioenergetic model of system dynamics. We used 29 primary variables, 3 bioenergetic equations and the postnatal growth equation of this species, implemented in the STELLA 9.1.3 program. From the interaction of these variables, the energy required by the reproduction cycle, the biomass consumed and the nutrients deposited in the colony were obtained. A sensitivity analysis and an uncertainty analysis were carried out to explore the variables that have the most influence on the results. The model was validated by the consistency in the units, the test of extreme values and the comparison with values recorded in the literature. Finally, disturbances scenarios that can affect a real colony were simulated. According to the model, for the growth the chicks require 10 219.2 Kcal total. The colony must totally invest 6.71x106 Kcal, which represents consumption close to 2.2 tons of dams. Due to this consumption, the nutrients deposited in the colony by the excreta were 49 kg of nitrogen, 7 kg of phosphorus and 56 kg of calcium. According to the sensitivity analysis, the variables that produce the strongest changes in the result are the number of adults in the colony and the average clutch size. The uncertainty analysis showed little influence of the variables selected on the response variables. The most harmful simulated disturbances for the colony were the affectations to the recruitment and the increase of the mortality of the pigeons.
Long-term monitoring of crab Cardisoma guanhumi (Decapoda: Gecarcinidae) captures in Jobos Bay Estuary, Puerto Rico
Authors: Govender Yogani
Published: September 2019

Abstract: The densities of the land crab Cardisoma guanhumi has been dropping for the past decades, as a result numerous management strategies, laws and regulations throughout the tropics have been developed to reduce population declines. The reasons for declines include: overfishing, habitat degradation and loss, and continued capture in Natural Protected Areas (NPA). In Puerto Rico, an admistrative order of 1999, regulates a closed season, prohibits the captures of crabs through the year from NPA and has a legal size for capture (64 mm). The goal of this research was to monitor spatial-temporal dynamics of captures for C. guanhumi after the implementation of the admistrative order. Crabs captured from thirty-one hunters in six communities surrounding the Jobos Bay Estuary (JBE) in south east Puerto Rico was studied over a period of 15 years, 2004 through 2018. The size (carapace width and length), sex and color were documented for 1531 crabs. There was significant difference in crab size through time and space. The smallest crabs with captured in the west of JBE and in the year 2004, while the largest crabs were captured in the west and in 2013. As expected smaller hunting areas had smaller crabs due to higher hunting pressure. Further, there was significant difference in crab color by size, smaller crabs were orange, intermediate size was brown and larger crabs were blue. Color of crab can therefore be used to determine legal limit. From 2009 to 2018 three percent of hunters captured crabs smaller than the legal-size limit. Although there was no significant relationship between climate (temperature, rainfall) and crab size, smaller crabs were captured in 2013-2016 during years of lower rainfall. Also, crab size increase from 2004 until 2013 coincided with mangrove recovery in the JBE. The laws and management strategies in Puerto Rico for the protection of crabs by size and prohibition in NPA, is not enough. Therefore, the impact of climate variability, sea level rise and anthropogenic pressures on crab habitat, therefore, warrants further investigation.
Review of California sea lion (Zalophus californianus) abundance, and population dynamics in the Gulf of California
Authors: Masper Alice
Published: September 2019

Abstract: The life history of California sea lion (Zalophus californianus) in the California Gulf is marked by a series of important events influencing and modifying its population growth, evolution and distribution.

Despite the fact that the population has been studied since the 1950s, research has been have been rather punctual and fragmentary, before 2010, there are a very few censuses conducted simultaneously in all rookeries, which prevent obtaining information on key aspects of life cycle, population trend and potential threats. In the present work we conducted a thorough review encompassing the last 37 years of California sea lion life history and environment in the Gulf of California. This allowed an opportunity to focus on short- and long-term processes acting on the population and hopefully improve knowledge about the population trend and status and unveil some latent aspects hardly recognizable using a partial vision. We collected and analyzed data from different sources since the 1970s to 2018: published papers, master’s and doctoral thesis, in addition to technical reports. The data is organized in sections corresponding with crucial population life history events. Considering a long-time frame period the population could appear stable with zero growth due to the cyclic interannual fluctuation that could denote a certain dependence with climatic factors, not directly with El Niño event, but with sea surface temperature anomalies that determine a change in prey availability. However, many doubts persist about the incidence of different local environmental factors on gender and age, particularly related with juvenile recruitment and female survival rate. More information is required based on seasonal censuses, life cycle, regional environmental variation; statistical errors need to be assessed and monitoring methods should be standardized and must be considered to ascertain short- and long-term population and colony spatial-temporal patterns.
Biometría testicular y características seminales en felinos neotropicales (Carnivora: Felidae) sometidos a cateterismo uretral
Authors: Madrigal Valverde Mónica
Published: September 2019

Introducción: La administración de de un agonista de un fármaco alfa- 2-adrenérgicos asociada con la técnica del cateterismo uretral , es un método de desarrollo reciente en la colección seminal en felinos, ofreciendo las ventajas   sobre la colecta por electroeyaculación y la colecta epididimária. La técnica se ha probado en   Panthera   onca   y felinos de pequeño porte. Métodos: En este estudio se utilizaron individuos de   Panthera   onca   ,   Puma  yagouaroundi  y Leopardus   wedii   en cautiverio en el parque   Zoobotánico Getúlio Vargas, Salvador, Bahia, Brasil. Fue utilizado los farmácos de clorhidrato de medetomidina (0,1mg /kg) y cetamina (5mg /kg) y fue colectado semen por medio del cateterismo uretral. Durante el desarrollo del procedimiento, se realizó la colecta de los datos biométricos corporales y testiculares, así como la ultrasonografáa de los testículos. Las muestras seminales frescas fueron evaluadas los parámetros de volumen, por microscopía convencional, el vigor espermático, motilidad total,  motilidad progresiva,  la integridad estructural y funcional de la membrana plasmática y la morfología espermática. Las muestras se sometieron a un proceso de congelación   -   descongelación   utilizando tres diferentes crioprotectores.   Las muestras descongeladas fueron evaluadas por  microscopía convencional, análisis seminal computarizado y  citometría   de flujo. Resultados: En este estudio fue realizado con éxito la técnica de colección seminal en las tres especies, siendo el primer estudio que informa de los parámetros seminales  de P. yagouaroundi y el primero que reporta la colección seminal uretral en   L.   wiedii. Los datos presentados describen la   morfocinética   espermática de las especies incluidas de forma pionera. No hubo diferencias (P>0,05) en la calidad seminal evaluando por grupo de crioprotector, ni diferencias en la integridad de las membranas pré e   post-congelamento. Discusión: Foi posible solamente la comparación con otras técnicas de colección seminal o con resultados de calidad seminal obtenidos de muestras de  gato doméstico. El establecimiento de una potencial asociación de las características físicas del animal y la calidad seminal, es información de suma importancia en la aplicabilidad para la elección de reproductores en los programas de reproducción asistida.
Vesetranszplantált beteg infrarenalis aortaaneurysmájának sikeresen kezelt esete
Authors: Boros Péter , Olvasztó Sándor , Litauszky Krisztina , Bodnár Fruzsina , Mészáros Júlia , Tóth Csaba
Published: September 2019

Abstract:

The management of the abdominal aortic aneurysm is associated with several risk factors, especially in patients after renal transplantation. Endovascular aneurysm repair (EVAR) can be the proper treatment in feasible cases. The authors present a patient’s case who underwent renal transplantation and developed an infrarenal aortic aneurysm some years later. A 50-year-old male patient was operated with EVAR. During the starting period of the procedure bilateral iliac dissection developed, and the endovascular approach was converted into traditional open operation. At the time when the aorta was clamped, an extraanatomic shunt was applied to ensure the blood supply of the transplanted organ. In the early postoperative period, a transient renal function impairment was observed. Later on, the renal function returned to normal values. In this article, alternative methods used to prevent ischaemic damage of the transplanted organ during the procedure are presented as well. Finally, the authors report the international trends and experiences in the field of preserving the viability of a transplanted organ during abdominal aneurysm repairs. Orv Hetil. 2019; 160(37): 1471–1475.
Risk Management to Ensure Environmental Safety at Enterprises
Authors: Matveeva Anna
Published: September 2019

The article raises the issue of environmental risk management for the formation of measures to ensure environmental safety in industrial enterprises. A classification of environmental risks is given depending on the nature and type of environmental impact. The paper describes the methods of environmental risk management. On the basis of which it is possible to build a further strategy of the enterprise to reduce or prevent the occurrence of risks depending on risk-forming factors of the environment. The concept of environmental risk management in an enterprise should be developed taking into account the economic conditions inherent in a particular enterprise, depending on the climatic and economic conditions of the region. Each industrial enterprise is unique in its field of activity, production volumes and a set of external and internal environmental factors. Therefore, environmental risk management can be classified as a targeted action aimed at choosing the optimal strategy for the enterprise to minimize environmental damage. The paper is proposed an algorithm for managing environmental risk for enterprises.
Assessment of the Ecological Status of Erik the Soudomoyka within the Boundaries of the Natural Park “Volga-Akhtuba Floodplain”
Authors: Babicheva Alina , German Nadejda
Published: September 2019

The purpose our ecological and research is the research of one of transit reservoirs as a part of the Krasnoslobodsky water path of a northern part of the Volga-Akhtubinsk floodplain, regarding assessment of its ecological state. In a research bioindication methods, organoleptic, determination of amount of dissolved oxygen in water, definition of the PH environment, experimental definition dry were applied. In work the results of field and laboratory researches reflecting ecological and biological conditions of a reservoir of an erik the Soudomoyka during the period from March, 2017 to February, 2018 are presented. Therefore conclusions that the reservoir is polluted as Synedra, Spirogyra, Mougeotia number prevails as a part of algal flora were received. Water quality according to estimated data also excludes use of water of an erik the Soudomoyka by residents of nearby settlements for the economic and household purposes, the reservoir also does not meet the requirements for a sanitary state cannot be used in the recreational purposes.
Analysis of Eco-Economic State of the Island Sarpinsky Territory
Authors: Kosheleva Olga , Shinkarenko Stanislav
Published: September 2019

The article presents the results of the assessment of the eco-economic state of the territory of Sarpinsky Island on the Lower Volga within the Volgograd region. Among the types of anthropogenic load, the most important for the island are recreation and grazing. In the course of field geobotanical research, a landscape-ecological profile was constructed, reflecting the alternation of natural-territorial complexes in the northwestern part of the island. The Sentinel-2 satellite image is used to determine the distribution of the island’s land by type of economic use. Each category of land is assigned a certain score depending on the degree of anthropogenic load. The coefficients of absolute and relative intensity of the eco-economic state and natural protection are calculated. The ecological fund of the island is 5397,3 hectares (48,7 % of the territory). Sarpinsky Island is characterized by a balanced anthropogenic load with the potential for sustainability of natural-territorial complexes, which is provided mainly due to the high forest cover and water content of the island, but the natural protection of landscapes is assessed as average due to the almost complete absence of protected natural areas.
Сartographic Provision of Monitoring of Engineering-Geological Processes on the Basis of GIS-Technologies
Authors: Shubin Mikhail
Published: September 2019

Mapping information is needed when using geo-information technologies to develop a system of monitoring geological processes. The thematic basis of the engineering-geological map is a data Bank for assessing the state of the geological environment. The sources of the digital cartographic basis are remote sensing data and field survey materials. The data is included in the contents of the MapInfo working set. Engineering-geologic map consists of two thematic layers. The first layer - stratigraphic genetic complexes of surface deposits, their composition and physical and mechanical properties. The second layer is a characteristic of exogenous processes, including a description of the types, prevalence (scale) and intensity of manifestation separately for each group of processes: landslide, erosion, Aeolian, suffusion-karst, waterlogging and flooding. As an example, the map of soil density in MapInfo for the pipeline section is shown.
Humanitarian competencies of a doctor (cardiologist)
Authors: Taratukhin E. O.
Published: September 2019

The article reveals the features of working with the patient as a social and psychological subject, who, in addition to somatic pathology, has an experience of the disease situation. Psychosocial risk factors for cardiovascular (and more generally non-infectious) pathology, as well as social well-being as a component of positive health, are considered as elements of a doctor-patient relationship. Work with a person requires from a doctor competency that differs from working with pathology at a biological level. Perhaps, the time has come to single out “biomedical doctors” and “medical doctors” in clinical medicine, of which the first ones are not required humanitarian competencies. Since non-infectious pathology largely includes psychosomatic features, and mental processes are filled with an experience of social reality, the clinician must have skills of human sciences to work with them. This is especially important in view of the physician’s power as an ambassador of medicine and health. The following competencies are discussed: internal work skills, situational search and interpretation, communicative and ethical competence, development of positive health.
Pheochromocytoma associated with neurofibromatosis type 1: a clinical case
Authors: Eniseeva E. S. , Protasov К. V. , Vlasyuk Т. Р. , Tokareva N. P. , Belykh D. V.
Published: September 2019

A clinical case of pheochromocytoma in combination with neurofibromatosis type 1 is presented in a man admitted to the cardiology department with acute coronary syndrome on the background of hypertensive crisis. The crisis was complicated by myocardial ischemia, myeloid leukemoid reaction, hyperglycemia and acute renal damage. Pheochromocytoma was verified by blood metabolites of catecholamines test and histological method. Surgical adrenalectomy was performed.
Counterfactual Randomization: Rescuing Experimental Studies from Obscured Confounding
Authors: Forney Andrew , Bareinboim Elias
Published: September 2019

Randomized clinical trials (RCTs) like those conducted by the FDA provide medical practitioners with average effects of treatments, and are generally more desirable than observational studies due to their control of unobserved confounders (UCs), viz., latent factors that influence both treatment and recovery. However, recent results from causal inference have shown that randomization results in a subsequent loss of information about the UCs, which may impede treatment efficacy if left uncontrolled in practice (Bareinboim, Forney, and Pearl 2015). Our paper presents a novel experimental design that can be noninvasively layered atop past and future RCTs to not only expose the presence of UCs in a system, but also reveal patient- and practitioner-specific treatment effects in order to improve decision-making. Applications are given to personalized medicine, second opinions in diagnosis, and employing offline results in online recommender systems.
Goal-Oriented Dialogue Policy Learning from Failures
Authors: Lu Keting , Zhang Shiqi , Chen Xiaoping
Published: September 2019

Reinforcement learning methods have been used for learning dialogue policies. However, learning an effective dialogue policy frequently requires prohibitively many conversations. This is partly because of the sparse rewards in dialogues, and the very few successful dialogues in early learning phase. Hindsight experience replay (HER) enables learning from failures, but the vanilla HER is inapplicable to dialogue learning due to the implicit goals. In this work, we develop two complex HER methods providing different tradeoffs between complexity and performance, and, for the first time, enabled HER-based dialogue policy learning. Experiments using a realistic user simulator show that our HER methods perform better than existing experience replay methods (as applied to deep Q-networks) in learning rate.
Enhancing Lazy Grounding with Lazy Normalization in Answer-Set Programming
Authors: Bomanson Jori , Janhunen Tomi , Weinzierl Antonius
Published: September 2019

Answer-Set Programming (ASP) is an expressive rule-based knowledge-representation formalism. Lazy grounding is a solving technique that avoids the well-known grounding bottleneck of traditional ASP evaluation but is restricted to normal rules, severely limiting its expressive power. In this work, we introduce a framework to handle aggregates by normalizing them on demand during lazy grounding, hence relieving the restrictions of lazy grounding significantly. We term our approach as lazy normalization and demonstrate its feasibility for different types of aggregates. Asymptotic behavior is analyzed and correctness of the presented lazy normalizations is shown. Benchmark results indicate that lazy normalization can bring up-to exponential gains in space and time as well as enable ASP to be used in new application areas.
ABox Abduction via Forgetting in ALC
Authors: Del-Pinto Warren , Schmidt Renate A.
Published: September 2019

Abductive reasoning generates explanatory hypotheses for new observations using prior knowledge. This paper investigates the use of forgetting, also known as uniform interpolation, to perform ABox abduction in description logic (ALC) ontologies. Non-abducibles are specified by a forgetting signature which can contain concept, but not role, symbols. The resulting hypotheses are semantically minimal and consist of a disjunction of ABox axioms. These disjuncts are each independent explanations, and are not redundant with respect to the background ontology or the other disjuncts, representing a form of hypothesis space. The observations and hypotheses handled by the method can contain both atomic or complex ALC concepts, excluding role assertions, and are not restricted to Horn clauses. Two approaches to redundancy elimination are explored in practice: full and approximate. Using a prototype implementation, experiments were performed over a corpus of real world ontologies to investigate the practicality of both approaches across several settings.
Complexity of Abstract Argumentation under a Claim-Centric View
Authors: Dvořák Wolfgang , Woltran Stefan
Published: September 2019

Abstract argumentation frameworks have been introduced by Dung as part of an argumentation process, where arguments and conflicts are derived from a given knowledge base. It is solely this relation between arguments that is then used in order to identify acceptable sets of arguments. A final step concerns the acceptance status of particular statements by reviewing the actual contents of the acceptable arguments. Complexity analysis of abstract argumentation so far has neglected this final step and is concerned with argument names instead of their contents, i.e. their claims. As we outline in this paper, this is not only a slight deviation but can lead to different complexity results. We, therefore, give a comprehensive complexity analysis of abstract argumentation under a claim-centric view and analyse the four main decision problems under seven popular semantics. In addition, we also address the complexity of common sub-classes and introduce novel parameterisations – which exploit the nature of claims explicitly – along with fixed-parameter tractability results.
Análisis espacial de las unidades educativas del milenio en el Ecuador y su cobertura en zonas de pobreza.
Authors: Navas Ruilova Gustavo Ernesto , Llerena Paz Robinson , Vaca Fernando
Published: September 2019

Uno de los parámetros que más influyen en la pobreza es la mala calidad en la educación. El estudio sistemático de la pobreza es fundamental para mejorar la aplicación de planes y proyectos. En el Ecuador, a partir del año del 2005 inicia el “Proyecto para mejorar las condiciones de escolaridad, el acceso y la cobertura de la educación” en zonas de alto índice de pobreza a través del Gobierno Nacional (Ministerio de Educación, 2016). Este estudio realiza un análisis espacial de dicho proyecto gubernamental del Ecuador mediante el uso del software libre. Dicho análisis se fundamenta en la existencia de las instituciones educativas públicas denominadas “Unidades Educativas del Milenio” (UEM), cuyo fin es mejorar la calidad académica, satisfacer la demanda estudiantil rural y atender a sectores históricamente relegados, partiendo de 57 unidades educativas operativas en el año 2016 y utilizando técnicas de análisis espacial estadístico, apoyados en una base de datos relacional robusta como es el caso de PostgreSQL, con el fin de determinar cuál es su área de afectación a la población, creando varios tipos de coberturas para identificar las parroquias y el porcentaje de pobreza que es atendido por este proyecto educacional, logrando determinar que existe un 77% y el 96% de UEM, en zonas de extrema pobreza.
THE EARLY TOURIST GUIDEBOOKS TO THE DUTCH EAST INDIES AND MALAYA IN THE NINETEENTH AND TWENTIETH CENTURY
Authors: Sunjayadi Achmad
Published: September 2019

At the end of the nineteenth century until the beginning of the twentieth century, International tourists have begun visiting the Dutch East Indies and Malaya. Therefore, guidebooks about the Dutch East Indies and Malaya were published for travellers and tourists. Using the historical method, this article discusses which information, how and why the information presented in the early tourist guidebooks. The result shows that the guidebooks provide various information not only about the objects that can be visited, but also about natural scenery, peoples, culinary, flora, fauna, and customs in the regions. They presented in a long narrative and practical text with illustrations. The illustrations in the Indies’ tourist guidebooks are more varied and accentuate nature and culture compared to Malaya’s guidebooks. Both of them presented exotics objects with the aim to attract western tourists in particular.
Upper Half-plane in the Grassmanian Gr(n; 2n)
Authors: Gindikin Simon
Published: September 2019

We investigate the complex geometry of a multidimensional generalization D(n) of the upper-half-plane, which is homogeneous relative the group G = SL(2n;R). For n > 1 it is the pseudo Hermitian symmet- ric space which is the open orbit of G = SL(2n;R) on the Grassmanian GrC(n; 2n) of n-dimensional subspaces of C2n. The basic element of the construction is a canonical covering of D(n) by maximal Stein submanifolds — horospherical tubes
On Carleman-type Formulas for Solutions to the Heat Equation
Authors: Kurilenko Ilya A. , Shlapunov Alexander A.
Published: September 2019

We apply the method of integral representations to study the ill-posed Cauchy problem for the heat equa- tion. More precisely we recover a function, satisfying the heat equation in a cylindrical domain, via its values and the values of its normal derivative on a given part of the lateral surface of the cylinder. We prove that the problem is ill-posed in the natural (anisotropic) spaces (Sobolev and H¨older spaces, etc). Finally, we obtain a uniqueness theorem for the problem and a criterion of its solvability and a Carleman-type formula for its solution
Functions with the One-dimensional Holomorphic Extension Property
Authors: Myslivets Simona G.
Published: September 2019

In this paper we consider different families of complex lines, sufficient for holomorphic extension the functions f, defined on the boundary of a domain D Cn, n > 1, into this domain, and possessing the one-dimensional holomorphic extension property along this complex lines
Distinctions genrées et identités discursives dans la généricité du discours d’investiture: le cas de Kirchner, Roussef et Sirleaf
Authors: Houessou Dorgelès
Published: September 2019

L’arrière plan théorique de cette communication est l’analyse du discours. Le but visé est d’interroger sur un double plan méthodologique et notionnel les rapports entre les modalités formelles des distinctions genrées en sciences du langage et le genre spécifique du discours d’investiture en tant que discours politique de légitimation. Montrer les procédés de mise en œuvre discursive de la masculinité et de la féminité comme posture revient, dans un tel contexte de passation/réception du pouvoir politique, à relever les mécanismes par lesquels des identités génériques projettent un parcours ethotique en fonction des attentes sociologiques (mythes et stéréotypes) liées aux schèmes identitaires concernés. Il en est ainsi parce que les conditions de la construction de l’image de l’orateur résident dans la perception doxique préexistante au discours et simultanément dans l’acte de langage en tant que composante subjective élémentaire de celui-ci.
Argumentação e autoria de adolescentes booktubers: interfaces entre a sala de aula e o ambiente virtual
Authors: Turci Valéria Fernandes , Romano Pacífico Soraya Maria
Published: September 2019

Considerando que os gêneros digitais ganham cada vez mais destaque na comunicação e muitos adolescentes acessam canais de vídeos no Youtube para visualizar resenhas de booktubers sobre livros, o objetivo deste  trabalho foi colocar essa nova prática de letramento em discurso no contexto escolar, com o intuito de possibilitar não só o incentivo à leitura, mas também a análise dos gestos argumentativos e os indícios de autoria presentes no discurso desses sujeitos-alunos em ambiente virtual.  Para o desenvolvimento da pesquisa, nossa referência teórica é a Análise de Discurso fundada por Michel Pêcheux. Nosso corpus será composto por vídeos, elaborados por alunos do ensino fundamental de uma escola pública de Ribeirão Preto/SP. Os resultados de nossas análises demonstram que o discurso dos sujeitos-alunos aponta marcas de autoria e argumentação quando as condições de produção da leitura e interpretação são permitidas no contexto escolar.  

 

Palavras-chaves: Argumentação. Autoria. Discurso. Educação.
Quando se perde o sentido da vida: valores em textos de suicidas
Authors: Catelão Evandro De Melo
Published: September 2019

Cartas e bilhetes suicidas frequentemente aparecem na vida cotidiana ligados a diversos gêneros do discurso, como reportagens, notícias, inquéritos policiais, páginas de redes sociais, entre outros. A argumentação presente nesses documentos já foi e é constantemente explorada no sentido de revelar detalhes sobre motivação, ou sobre a própria vida e morte dos sujeitos que optaram pela morte autoinfligida. Nessa perspectiva e embasado em pressupostos da Retórica e Nova Retórica, este artigo visa apresentar aspectos relativos à argumentação e à noção de “valor” presentes nesses textos. Trata-se de um prolongamento de pesquisa e referencial teórico a respeito da noção de valor na releitura de algumas produções de suicidas coletadas em inquéritos policiais (1896/1940). Pretende-se mostrar ainda como a noção de valor aparece delineada no interior da argumentação do suicida, bem como em estratégias discursivas utilizadas por esses sujeitos no momento da produção dos documentos.
Computer-assisted surgery navigation of pedicle screw insertion by standardized trainees
Authors: Liu Ming Yong
Published: September 2019

Objective: To assess the precision and efficiency computer-assisted surgery navigation of pedicle screw insertion by standardized trainees. Methods: From September 2013 to June 2016, 360 thoracic pedicle screws were inserted into 100 patients by standardized trainees (n = 30). Screws on the left side were inserted by hands (control group), while the other side were inserted under the guidance of computer-assistant navigation system (guided group). The insertion time and volume of blood lost by each screw were retrospectively analyzed. The precision ratio was assessed by computerized tomography (CT) scan after operation. Results: The time consumed in screw insertion was significantly shorter in the guided group than that in the control group. The blood lost volume was lesser in the guided group. Post-operation CT scan revealed higher precision in the guided group than that in the control group. Conclusion: Computer-assistant navigation system facilitates the learning of standardized trainees, and reduces the time-consuming and bleeding in thoracic pedicle screw insertion.
Sound in Amsterdam During the Late Nineteenth and Early Twentieth Centuries
Authors: Jacobs Annelies
Published: September 2019

This paper deals with sound as part of everyday urban life, based on Amsterdam during the late nineteenth and early twentieth centuries. Although it is commonly held that modern cities have grown noisier as a result of their expansion and the growth of industry and technology, we actually know very little about the urban sounds of the past. We know even less about the manner in which it was perceived and valued by contemporaries. This article poses three questions. Which sounds were produced in Amsterdam in the past? Which meanings did contemporaries attribute to these sounds? And which the role did particular sounds play in the debate on city life? To answer these questions, the article makes use of an analytical framework that allows us to look at soundscapes from the point of view of the ecology of sound, the semiotics of sound and the politics of sound.
Research data management and the evolutions of scholarship
Authors: Willaert Tom , Cottyn Jacob , Kenens Ulrike , Vandendriessche Thomas , Verbeke Demmy , Wyns Roxanne
Published: September 2019

This case study critically examines ongoing developments in contemporary scholarship through the lens of research data management support at KU Leuven, and KU Leuven Libraries in particular. By means of case-based examples, current initiatives for fostering sound scientific work and scholarship are considered in three associated domains: support for policy-making, the development of research infrastructures, and digital literacy training for students, scientists and scholars. It is outlined how KU Leuven Libraries collaborates with partner services in order to contribute to KU Leuven’s research data management support network. Particular attention is devoted to the innovations that facilitate such collaborations. These accounts of initial experiences form the basis for a reflection on best practices and pitfalls, and foreground a number of pertinent challenges facing the domain of research data management, including matters of scalability, technology acceptance and adoption, and methods for effectively gauging and communicating the manifold transformations of science and scholarship.
Retratos da inclusão: o atendimento ao surdo em distintos espaços sociais
Authors: Pereira Chaves Taline , Sonali Pereira Tonin Gisleine , Graff Patrícia
Published: September 2019

O presente artigo tem como tema de pesquisa a acessibilidade direcionada aos surdos, com o objetivo de compreender como os distintos espaços sociais se organizam para atender às pessoas surdas. Trata-se de uma pesquisa bibliográfica, por meio da análise de estudos acadêmicos, disponíveis no Banco de Teses e Dissertações da CAPES e no IBICT, que abordam a acessibilidade às pessoas surdas, em diferentes espaços da sociedade. Os dados coletados a partir da leitura de cada uma das pesquisas selecionadas foram categorizados, interpretados e analisados. Os estudos apontam para as dificuldades enfrentadas pelas pessoas surdas nos diferentes setores da sociedade, como educação, saúde, lazer e trabalho. Evidenciam a ausência de tradutores/intérpretes de Libras/Língua Portuguesa e de profissionais capacitados em Libras nos espaços sociais, utilizando outras formas de comunicação pouco eficazes para assegurar a inclusão social.
Quasi-stationary Strength of ECAP-processed Cu-Zr at 0.5Tm
Authors: Blum Wolfgang , Dvorak Jiri , Kral Petr , Eisenlohr Philip , Sklenicka Vaclav
Published: September 2019

The influence of the grain structure on the tensile deformation strength is studied for precipitation-strengthened Cu-0.2%Zr at 673 K. Subgrains and grains are formed by ECAP and annealing. The fraction of high-angle boundaries increases with prestrain. Subgrains and grains coarsen during deformation. This leads to softening in the quasi-stationary state. The initial quasi-stationary state of severely predeformed, ultrafine-grained material exhibits relatively high rate-sensitivity at relatively high stresses. This is interpreted as result of the stress dependences of the quasi-stationary subgrain size and the volume fraction of subgrain-free grains.
Mass and Energy Densities of the Cosmos
Authors: Obande Ogaba Philip
Published: September 2019

Fundamental principles of classical (Newtonian) physics are employed to probe the cosmological lambda Λ; it yields the values ρvac = 2.61 x 10-39 g cm-3 and Λ = 4.78 x 10-62. The results reveal that Λ is a fundamental physical constant defined by vacuum density-light speed ρvacc2 correlation. However, the constant accelerates along the groups and periods of a universal spatial periodicity equivalent to the chemical periodicity. Previous results are cited to show that chemical elements are quantum harmonic (periodic) oscillators QHOs and their waveform oscillations exclusively define the vacuum field. A cosmological periodic unit CPU is introduced, it relies on the cosmological principle to argue that a relative physical quantity evaluated for the QHO applies to constituents of corresponding cosmological spatial quanta. Compelling evidences, backed with relevant data and quantitative expressions, are then presented to argue that: there was never a big bang, it is a Linde-universe sans “chaotic”; nature posts no singularity; mass does not curve spacetime, neither does metric space curvature trace directly to gravitation nor particle creation, gravity is classical, not quantum; reality is quadri-phasic not mono-phasic with a clear distinction between the atomic waveform defined with absolute atomic mass and condensed matter defined with relative atomic mass; every chemical element exists in three particle-generations thus, dark matter is invisible form (conjugate) of the visible element, its waveform manifests dark energy, it is not implicated in metric space expansion; Planck scale does not exist, radioactivity constrains fundamental length.
Investigating Organizational Culture among Civil Servants Organizational Commitment
Authors: Hkualizaman Tubagus , Hamidah Hamidah , Handaru Agung Wahyu
Published: September 2019

This study aims to explore the effects of Organizational Culture on organizational commitment of Civil Servants in an Indonesia context. The sample comprised of 71 Civil Servants working at Cilegon City Government in Indonesia which were selected by a multistage stratified sampling method.. A scale that aimed to measure the Civil Servantsâ€™ Organizational Culture and their organizational commitment was used to collect data. Mean scores, Pearson moment correlation coefficients, and simple linear regression analyses were carried out to analyze data. The Findings Short that Positive relationships between organizational culture and organizational commitment. The results indicated that organizational culture was a significant predictor of organizational commitment.
The Electric Shock Sign—An Indication of a Partial Digital Nerve Laceration
Authors: Amaro Emilie J. , Pottle Thomas G. , Lee Donald H.
Published: September 2019

Case:

Digital nerves injuries following penetrating injuries, lacerations, and blunt force trauma are common. This case series reports 3 acute cases of partial digital nerve lacerations where patients presented with a similar electric shock–like sensation, the “electric shock sign” radiating distally along the digital nerve distribution. The lancinating pain commonly occurs with active or passive finger extension. All 3 patients underwent operative repair of the digital nerve lacerations. With follow-up ranging between 4.5 months and 11 years, there was complete resolution of their pain.

Conclusions:

The electric shock clinical sign can be an indicator of a partial digital nerve laceration.
Digitalization of Spectral Measurements in the Fourier Basis – Development Trends and Problems
Authors: Ponomareva O. V. , Ponomarev A. V. , Smirnova N. V.
Published: September 2019

At the present stage of development of digital information technologies intensive digitalization (computerization) of both direct and indirect measurement methods is taking place. The direct consequence of the computerization of measurements was, firstly, the emergence of a new class of measuring instruments – Processor measuring instruments (PRIS), secondly, increasing the level of formalization of measuring procedures, thirdly, the creation of a new, revolutionary technology –Virtual Instrument (VI). The purpose of the article is to analyze the development of digital technologies for measuring spectra, identifying the problems that arise in this case and formulating priority scientific and applied problems for their resolution.

Theoretical and applied research has established that digital spectrum measurement technologies, in addition to significant advantages, have certain disadvantages. It has been shown that the disadvantages of digital technologies for measuring spectra arise both from the nature of digital methods and from the analytical and stochastic properties of the bases of the applied transformations in measuring the spectra. An analysis of digital methods for measuring spectra showed that methods based on Discrete Fourier Transform (DFT) retain their leading role and are effective in almost all subject areas. However, there are also problems of digitalization of measurements of the spectra of signals based on the DFT, which are associated, first of all, with the manifestation of a number of negative effects that are absent with analog methods for measuring spectra based on the Fourier transform. This is the periodization effect of the measuring signal and its spectrum, the stockade effect, as well as the aliasing effect. As the analysis showed, existing methods of dealing with the negative effects of digitalization of spectrum measurements solve the problems of introducing digital technologies only partially. To combat the negative effects of digitalization of spectral measurements, a generalization of the DFT in the form of a parametric DFT (DFT-P) (Parametric Discrete Fourier Transform – DFT-P) is proposed.

The main scientific and applied problems of computerization of signal spectrum measurements are formulated: the development of the theory of digital methods for measuring signal spectra, the creation of new and improvement of existing digital methods for measuring signal spectra, the development of algorithmic, software and metrological software for PRIS and VI for the implementation of DFT-P.
Northern Blot Analysis
Authors: Huber Madeleine , Soppa Jörg
Published: September 2019

The whole workflow for the quantification of specific transcripts by Northern blot analysis is described in detail, including RNA isolation, probe generation via labelling with Dig-dUTP, hybridization, signal visualization and quantification.
Single-cell multi-omic profiling of chromatin conformation and DNA methylation
Authors: Lee Dong-Sung , Luo Chongyuan , Zhou Jingtian , Chandran Sahaana , Rivkin Angeline , Bartlett Anna , Nery Joseph R , Fitzpatrick Conor , O'Connor Carolyn , Dixon Jesse R , Ecker Joseph R
Published: September 2019

The ability to profile epigenomic features in single cells is facilitating the study of the variation in transcription regulation at the single cell level. Single cell methods have also facilitated the generation of cell-type resolved transcriptomic and epigenetic profiles of lineages derived from complex heterogeneous samples. However, integrating different epigenetic features remain challenging, as many current methods profile a single data type at at time. Furthermore, some epigenetic features, such as 3D genome organization, are intrinsically variable between single cells of the same lineage, so it remains unclear how well these methods may resolve cell-types from complex mixtures. Here we describe a method for profiling 3D genome organization and DNA methylation in single cells. This protocol accompanies Lee et al. (Nature Methods 2019) after peer review to aid potential users in applying the method to their own samples.