bluuebunny/crossref_metadata_2025 huggingface dataset:
Choosing the Best Sensor Fusion Method: A Machine-Learning Approach
Authors: Brena Ramon F. , Aguileta Antonio A. , Trejo Luis A. , Molino-Minero-Re Erik , Mayora Oscar
Published: April 2020

Multi-sensor fusion refers to methods used for combining information coming from several sensors (in some cases, different ones) with the aim to make one sensor compensate for the weaknesses of others or to improve the overall accuracy or the reliability of a decision-making process. Indeed, this area has made progress, and the combined use of several sensors has been so successful that many authors proposed variants of fusion methods, to the point that it is now hard to tell which of them is the best for a given set of sensors and a given application context. To address the issue of choosing an adequate fusion method, we recently proposed a machine-learning data-driven approach able to predict the best merging strategy. This approach uses a meta-data set with the Statistical signatures extracted from data sets of a particular domain, from which we train a prediction model. However, the mentioned work is restricted to the recognition of human activities. In this paper, we propose to extend our previous work to other very different contexts, such as gas detection and grammatical face expression identification, in order to test its generality. The extensions of the method are presented in this paper. Our experimental results show that our extended model predicts the best fusion method well for a given data set, making us able to claim a broad generality for our sensor fusion method.
PM2.5 Concentration Estimation Based on Image Processing Schemes and Simple Linear Regression
Authors: Liaw Jiun-Jian , Huang Yung-Fa , Hsieh Cheng-Hsiung , Lin Dung-Ching , Luo Chin-Hsiang
Published: April 2020

Fine aerosols with a diameter of less than 2.5 microns (PM2.5) have a significant negative impact on human health. However, their measurement devices or instruments are usually expensive and complicated operations are required, so a simple and effective way for measuring the PM2.5 concentration is needed. To relieve this problem, this paper attempts to provide an easy alternative approach to PM2.5 concentration estimation. The proposed approach is based on image processing schemes and a simple linear regression model. It uses images with a high and low PM2.5 concentration to obtain the difference between these images. The difference is applied to find the region with the greatest impact. The approach is described in two stages. First, a series of image processing schemes are employed to automatically select the region of interest (RoI) for PM2.5 concentration estimation. Through the selected RoI, a single feature is obtained. Second, by employing the single feature, a simple linear regression model is used and applied to PM2.5 concentration estimation. The proposed approach is verified by the real-world open data released by Taiwan’s government. The proposed scheme is not expected to replace component analysis using physical or chemical techniques. We have tried to provide a cheaper and easier way to conduct PM2.5 estimation with an acceptable performance more efficiently. To achieve this, further work will be conducted and is summarized at the end of this paper.
The Impact of Wood Fuel Energy on Economic Growth in Sub-Saharan Africa: Dynamic Macro-Panel Approach
Authors: Sulaiman Chindo , Abdul-Rahim A.S.
Published: April 2020

This study estimates the impact of wood fuel consumption on economic growth in 19 sub-Saharan African countries over the 1979-2017 period. The study employs dynamic macro-panel estimators, which comprises pooled mean group (PMG), mean group (MG), and dynamic fixed effects (DFE). The estimated result reveals that PMG is the most efficient estimator among the three estimators based on the Hausman h-test. The results from PMG model reveal that wood fuel consumption has significant negative impact on economic growth. Also, when an interaction term between labor and wood fuel consumption was included in the model and estimated, the coefficient of wood fuel consumption yields negative and significant coefficient. This suggests that the interaction term has a negative and significant effect on economic growth. These results unveil that wood fuel consumption negatively and significantly affect economic growth, both directly and indirectly. The policy recommendations from this study are as follows: (1) Governments of these countries should provide adequate and affordable modern fuels to the populace; especially rural dwellers to decrease the use of wood fuel for cooking and heating (2) policy makers should intensify awareness campaign on the risk and danger wood fuel poses to economic growth so as to discourage its use and (3) policy makers should provide adequate solar powered stoves and solar-powered room heaters as cheap substitutes to the use of wood fuel for cooking and heating. These recommendations will assist in negating the negative effects of wood fuel consumption on economic growth of the region.
Classification of BOF Slag by Data Mining Techniques According to Chemical Composition
Authors: Andrés-Vizán Sara M. , Villanueva-Balsera Joaquín M. , Álvarez-Cabal J. Valeriano , Martínez-Huerta Gemma M.
Published: April 2020

In the process of converting pig iron into steel, some co-products are generated—among which, basic oxygen furnace (BOF) slag is highlighted due to the great amount generated (about 126 kg of BOF slag per ton of steel grade). Great efforts have been made throughout the years toward finding an application to minimize the environmental impact and to increase sustainability while generating added value. Finding BOF slag valorization is difficult due to its heterogeneity, strength, and overall swallowing, which prevents its use in civil engineering projects. This work is focused on trying to resolve the heterogeneity issue. If many different types of steel are manufactured, then different types of slag could also be generated, and for each type of BOF slag, there is an adequate valorization option. Not all of the slag can be valorized, but it can be a tool for reducing the amount that must go to landfill and to minimize the environmental impact. An analysis by means of data mining techniques allows a classification of BOF slag to be obtained, and each one of these types has a better adjustment to certain valorization alternatives. In the plant used as an example of the application of these studies, eight different slag clusters were obtained, which were then linked to their different potential applications with the aim of increasing the amount valorized.
Composting as Manure Disposal Strategy in Small/Medium-Size Livestock Farms: Some Demonstrations with Operative Indications
Authors: Palese Assunta Maria , Persiani Alessandro , D’Adamo Carmine , Pergola Maria , Pastore Vittoria , Sileo Rocco , Ippolito Giuseppe , Lombardi Maria Assunta , Celano Giuseppe
Published: April 2020

The livestock sector plays a fundamental role in human beings’ livelihood all over the world. However, significant changes have occurred in the last decades, transforming the livestock sector into a highly intensive economic activity with negative impacts on human health and the environment. Such a reality requires the identification of easy methods to apply to sustainable manure management. Composting is a clever approach to transform manure into a resource. Very limited scientific literature is available on techniques for composting in small and medium livestock farms. This paper describes, in detail, some on-farm composting plants made in Southern Italy within different rural contexts. A depth analysis of farm starting situation and nearby territory (resources/services) was performed to identify the least expensive/impactful composting logistics (reduction of ex novo farm investments and transport costs, etc.), making the action economically sustainable for farmers. This approach appears to be successful in guiding farmers towards the best composting technological option, based on pre-existent on-farm resources. These small-scale composting plants, reproducible in other similar contexts, allow one to turn manure into a product with a profitable placement on the market. For this reason, these manure management options should be widespread, especially under organic farming systems.
Moderating Effect of Political Embeddedness on the Relationship between Resources Base and Quality of CSR Disclosure in China
Authors: Rauf Fawad , Voinea Cosmina Lelia , Bin Azam Hashmi Hammad , Fratostiteanu Cosmin
Published: April 2020

This study investigates the relationship between corporate political embeddedness and the quality of corporate social responsibility (CSR) disclosure for Chinese listed A-share firms. The study applies the legitimacy theory to the diffusion of CSR in Chinese companies, which otherwise have a differentiating characteristic from Western companies: part of their property being owned by the government. We used 21,295 firm-year observations from Chinese listed firms between 2010 and 2016. The findings reveal that political embeddedness moderates the relationship between firms’ resource base and CSR disclosure quality, such that the effect of resource base on CSR quality was found to be weak for firms with a higher level of political embeddedness. Furthermore, firms with a higher level of political embeddedness will disclose CSR with a lower quality, whilst firms with a higher resource base report CSR with a higher quality. The findings of this study contribute significantly to the literature on CSR disclosure by recognizing the positive impact of political embeddedness and resource base on CSR disclosure quality.
Teacher Education and Sustainable Development Goals: A Case Study with Future Biology Teachers in an Angolan Higher Education Institution
Authors: Chisingui António Valter , Costa Nilza
Published: April 2020

National education policies are increasingly regulated by international agendas, for example the Agenda 2030 for Sustainable Development (SD). However, in order to put such policies into practice, social actors like teachers and teacher educators must include them in their practices. In this context, this study stems from the following research question: how does initial teacher education (ITE) promote the SD Agendas (2030 and 2063 for Africa)? The approach to this question is carried out through a case study focused on an Angolan teacher education higher education institution, in its graduate course for future secondary school biology teachers. The main aims of this study are (i) to characterize how ITE includes SD and (ii) to suggest ways to improve SD, particularly focusing on students’ future professional needs. Data were gathered from document analysis (the pedagogical curriculum plan of the course; titles and abstracts of final-year future biology teachers’ essays) and an interview with the course director of the biology teaching program of the Angolan institution. Content analysis of the gathered evidence was based on a three-dimensional framework: (a) SD goals (SDG) and the curriculum; (b) teacher education principles; and (c) current Angolan curricular perspectives. Results show that although the Pedagogical curriculum plan and the formative path, from the interviewee’s point of view, do not explicitly integrate SDG and its challenges for biology ITE, the majority of essays analyzed are locally contextualized and in a number of cases articulated with some of the 17 SDG. Suggestions for inclusion of SDG in ITE and for teacher education research are put forward.
Modeling an Innovative Green Design Method for Sustainable Products
Authors: Ko Yao-Tsung
Published: April 2020

Global warming and climate change are currently the world’s most pressing issues. The causes are the results of people pursuing a better quality of life and a material civilization. Thus, if the concept of green design can be applied when designing and manufacturing products, it will greatly reduce the environment impact of such production. This paper addresses a novel green design method based on the extension theory and concept of Green DNAs, which embraces the concepts of green technology, green material, and green manufacturing. The proposed method can provide designers with a decomposing–recomposing approach with rigorous logic and deduction processes for transforming general products into green products. It can also facilitate the use of green modular approaches in product design and improve product disassembly to raise the value added by product recycling. It offers companies concrete guidance and detailed steps to apply in green product design. Finally, a practical green product design of a medical air purifier is demonstrated to validate the feasibility and effectiveness of the proposed method.
Brazilian Community Restaurants’ Low-Income Food Handlers: Association between the Nutritional Status and the Presence of Non-Communicable Chronic Diseases
Authors: Fideles Ingrid C. , Akutsu Rita de Cassia Coelho de Almeida , Costa Priscila R. F. , Costa-Souza Jamacy , Botelho Raquel Braz Assunção , Zandonadi Renata Puppin
Published: April 2020

This cross-sectional study aimed primarily to determine the association between the nutritional status and the presence of non-communicable chronic diseases (NCDs) among community restaurants’ food handlers, since their access to food can influence their body mass index (BMI). The study discusses the socio-demographic status of participants, dietary intake, the prevalence of overweightness/obesity, and self-reported diagnosed NCDs. In 36 Community Restaurants (CRs) from all of the Brazilian regions, we collected data from 559 food handlers. We used a questionnaire to collect socio-demographic data and the reported diagnosed chronic diseases. For the anthropometric evaluation with Body Mass Index calculation, we measured the weight and the height of the individuals. They were all weighed before having lunch at the CR, without shoes and coats. Associations between variables were analyzed by the chi-square test and Poisson regression at a significance level of 5%, considering health as the outcome variable. Most of the food handlers were female (63.1%), married or with a partner (51.7%), and overweight (59.9%). Among the food handlers that presented diagnosed NCDs (n = 96, 17.2% of food handlers), 45.8% (n = 44) presented hypertension and 12.5% (n = 12) type 2 diabetes mellitus. There was a significant association between BMI and NCD status in the studied population. The total daily sodium intake of food handlers was higher than the recommendations of the World Health Organization (WHO), especially from the CR lunch, which may raise the risk of chronic diseases such as hypertension (the most prevalent non-communicable disease found in our study). Despite that, in general, the CRs provide access to cheap and adequate meals to their workers, considering energy intake and the proportion of macronutrients. In this population, overweightness and obesity were prevalent; there was an association of obesity with chronic disease in the study population. Therefore, it is necessary for better menu planning for CRs to guarantee sodium reduction throughout time.
Evaluating Influence of Inverter-based Resources on System Strength Considering Inverter Interaction Level
Authors: Kim Dohyuk , Cho Hwanhee , Park Bohyun , Lee Byongjun
Published: April 2020

The penetration of renewable energy sources (RESs) equipped with inverter-based control systems such as wind and solar plants are increasing. Therefore, the speed of the voltage controllers associated with inverter-based resources (IBRs) has a substantial impact on the stability of the interconnected grid. System strength evaluation is one of the important concerns in the integration of IBRs, and this strength is often evaluated in terms of the short circuit ratio (SCR) index. When IBRs are installed in an adjacent location, system strength can be weaker than evaluation by SCR. This study proposes an inverter interaction level short circuit ratio (IILSCR) method by tracing IBRs output flow. The IILSCR can accurately estimate system strength, wherein IBRs are connected in adjacent spots, by reflecting the interaction level between IBRs. The study also demonstrates the efficiency of IILSCR by applying this method to Institute of Electrical and Electronics Engineers (IEEE) 39 bus test system and future Korea power systems.
Assessing the Benefits of the Sustainability Reporting Practices in the Top Romanian Companies
Authors: Petrescu Anca Gabriela , Bîlcan Florentina Raluca , Petrescu Marius , Holban Oncioiu Ionica , Türkeș Mirela Cătălina , Căpuşneanu Sorinel
Published: April 2020

The concept of sustainability reporting has been addressed by experts worldwide and is defined as the process of communicating the social and environmental effects of the economic actions of organizations to special interest groups within society in general. The main purpose of this research was to identify and analyze the opinions of the real benefits obtained by large companies in Romania following the elaboration of sustainability reports and their contribution to the development of a sustainable economy. A quantitative marketing research was carried out on the sample randomly extracted from a target community of the largest 5750 companies across 35 counties that were active in strategic priority areas of Romania. Both explicitly and implicitly, the research resulted in essential aspects related to the correlation of the sustainability strategy with sustainability reporting, how sustainable development goals contribute to improving all of the processes included in the integrated company management system, how the internal and external benefits can contribute to increasing economic, social, and environmental performance, and building sustainable relationships with shareholders, employees, and stakeholders. In addition, the findings show that aligning a sustainability strategy with a global business strategy and including sustainability reporting requirements (non-financial) are important concerns at the level of the top companies in Romania.
Pathways to Livable Relocation Settlements Following Disaster
Authors: Palagi Shaye , Javernick-Will Amy
Published: April 2020

Mass relocation—the transfer of communities to new housing developments—is often implemented following disasters, despite criticism that past projects have not created livable communities for residents. Livable relocation communities are those where residents experience quality housing, utilities, social infrastructure, neighborliness, safety, and a sense of permanence. Numerous conditions may support livability, such as site location, community involvement, and processes of managing construction and beneficiary transfer. We evaluated relocation communities in Tacloban City, Philippines, applying Qualitative Comparative Analysis to identify pathways, or combinations of conditions, that led to built and societal livability. We found pathways to livability generally differed between government and non-government developed sites, with the former benefiting from a slower pace and standard permitting procedures, and the latter by building fast and using scale and need to prompt improved services. An unexpected combination emerged as a pathway to societal livability—being remote and comprised of households originally from a mix of different communities—revealing a new narrative for positive social outcomes in relocation. Three conditions emerged as necessary for achieving overall livability: fast construction, full occupancy, and close proximity to an economic and administrative center. This analysis demonstrates necessary conditions and pathways that implementing agencies can reference in their quest to create livable relocation communities.
Factors Influencing the Willingness to Pay for Aquaponic Products in a Developed Food Market: A Structural Equation Modeling Approach
Authors: Eichhorn Theresa , Meixner Oliver
Published: April 2020

Even in highly developed food markets, aquaponic products have not yet been successfully introduced. This is particularly surprising, as aquaponics is an excellent example of a sustainable circulation food production system. The purpose of this empirical study was to determine the factors that influence consumers’ willingness to pay for aquaponic products. The direct and indirect relationships were tested via Structural Equation Modeling (SEM). Primary data of 315 respondents from Austria were collected. The findings revealed that the willingness to pay for aquaponic products was significantly and directly driven by the purchase intention. As a result, the successful implementation of aquaponics in the market requires the provision of information for consumers. We suggest emphasizing the value of aquaponics as a sustainable food production system, since indirect factors that influence the willingness to pay are (besides the assessment of aquaponics) environmental awareness and green consumption.
Acute Lymphatic Filariasis Infection in United States Armed Forces Personnel Deployed to the Pacific Area of Operations during World War II Provides Important Lessons for Today
Authors: Melrose Wayne D. , Leggat Peter A.
Published: April 2020

The deployment of United States (US) Armed Forces personnel into the central Pacific islands of Samoa and Tonga, which is highly-endemic for lymphatic filariasis (LF), resulted in thousands of cases of the acute form of this disease and greatly reduced their ability to carry out their mission. The major driving factor for the intensity of transmission was the aggressiveness and efficiency of the Aedes species mosquito vectors, especially the day-biting Ae. Polynesiensis. The paper reminds us of the danger that tropical diseases can pose for troops sent into endemic areas and constant and careful surveillance that is required to prevent rapid resurgence of Aedes-transmitted LF in populations, where the LF elimination program has been successful.
Mutation of Hydrophobic Residues in the C-Terminal Domain of the Marburg Virus Matrix Protein VP40 Disrupts Trafficking to the Plasma Membrane
Authors: Wijesinghe Kaveesha J. , McVeigh Luke , Husby Monica L. , Bhattarai Nisha , Ma Jia , Gerstman Bernard S. , Chapagain Prem P. , Stahelin Robert V.
Published: April 2020

Marburg virus (MARV) is a lipid-enveloped negative sense single stranded RNA virus, which can cause a deadly hemorrhagic fever. MARV encodes seven proteins, including VP40 (mVP40), a matrix protein that interacts with the cytoplasmic leaflet of the host cell plasma membrane. VP40 traffics to the plasma membrane inner leaflet, where it assembles to facilitate the budding of viral particles. VP40 is a multifunctional protein that interacts with several host proteins and lipids to complete the viral replication cycle, but many of these host interactions remain unknown or are poorly characterized. In this study, we investigated the role of a hydrophobic loop region in the carboxy-terminal domain (CTD) of mVP40 that shares sequence similarity with the CTD of Ebola virus VP40 (eVP40). These conserved hydrophobic residues in eVP40 have been previously shown to be critical to plasma membrane localization and membrane insertion. An array of cellular experiments and confirmatory in vitro work strongly suggests proper orientation and hydrophobic residues (Phe281, Leu283, and Phe286) in the mVP40 CTD are critical to plasma membrane localization. In line with the different functions proposed for eVP40 and mVP40 CTD hydrophobic residues, molecular dynamics simulations demonstrate large flexibility of residues in the EBOV CTD whereas conserved mVP40 hydrophobic residues are more restricted in their flexibility. This study sheds further light on important amino acids and structural features in mVP40 required for its plasma membrane localization as well as differences in the functional role of CTD amino acids in eVP40 and mVP40.
Mapping of raw materials and habitats in the Danish sector of the North Sea
Authors: Bo Jensen Jørn , Borre Sara , Leth Jørgen O. , Al-Hamdani Zyad , Addington Laura G.
Published: April 2020

In the summer of 2010, the Geological Survey of Denmark and Greenland (GEUS) mapped the potential raw materials and substrate types, over large parts of the Danish economic sector of the North Sea, in cooperation with Orbicon A/S. The mapping was carried out for the Danish Nature Agency; it is part of the general mapping of raw material resources within the territories of the Danish state and forms part of the input for the implementation of the European Union’s Marine Strategy Framework Directive. The purpose was (1) to provide an overview of the distribution, volume and composition of available raw materials and (2) to identify, describe and map the distribution of the dominant marine bottom types.
Colophon, contents and preface
Authors: Stemmerik Lars
Published: April 2020

The Jurassic rift succession of East Greenland has been intensely studied over the last 25 years, particularly within the main outcrop areas of Jameson Land and Wollaston Forland. The more isolated and poorly known outcrops on Traill Ø, Hold with Hope, Hochstetter Forland and Store Koldewey were investigated in the late 1980s and mid-1990s in order to develop a better regional understanding of the Jurassic in eastern Greenland.

This collection of seven papers focuses on stratigraphic and depositional aspects of the Jurassic at these localities. Comprehensive descriptions of the Jurassic on Hold with Hope and south-eastern Traill Ø are accompanied by papers covering fluvial deposits and new ammonite collections from the Middle Jurassic of Traill Ø. The bulletin is concluded by studies of the dinoflagellate cyst stratigraphy of the Middle and Upper Jurassic of Hold with Hope, Hochstetter Forland and Store Koldewey.
Jurassic dinoflagellate cysts from Hochstetter Forland, North-East Greenland
Authors: Piasecki Stefan , Stemmerik Lars
Published: April 2020

Three sections in Hochstetter Forland, North-East Greenland, referred to the Jurassic Payer Dal and Bernbjerg Formations, have been analysed for dinoflagellate cysts. The dinoflagellate cysts, new finds of ammonites and previously recorded marine faunas form the basis for improved dating of the succession. The basal strata of the Payer Dal Formation at Kulhus is here dated as Late Callovian, Peltoceras athleta Chronozone, based on the presence of relatively abundant Limbicysta bjaerkei, Mendicodinium groenlandicum, Rhychoniopsis cladophora and Tubotuberella dangeardii in an otherwise poor Upper Callovian dinoflagellate assemblage. Ammonites have not been recorded from these strata. The upper Payer Dal Formation at Agnetesøelven is dated as Late Oxfordian, Amoeboceras glosense – Amoeboceras serratum Chronozones, based on the presence of Sciniodinium crystallinum, together with Cribroperidinium granuligera and Stephanelytron sp. The age is in accordance with ammonites present in the uppermost part of the formation at Søndre Muslingebjerg. New ammonites in the Bernbjerg Formation at Agnetesøelven together with dinoflagellate cysts indicate an earliest Kimmeridgian age, Rasenia cymodoce and Aulacostephanoides mutabilis Chronozones. The Upper Callovian dinoflagellate cysts from Hochstetter Forland belong to a local brackish to marginal marine assemblage, which only allows a fairly broad correlation to coeval assemblages in central East Greenland. In contrast, the Oxfordian and Kimmeridgian assemblages are fully marine and can be correlated from Milne Land in central East Greenland via Hochstetter Forland to Peary Land in eastern North Greenland.
DISTRIBUCIÓN DE FRACCIONES DE PROTEÍNA Y SU CONTRIBUCIÓN A LAS CARACTERÍSTICAS DE CALIDAD DE TRIGO
Authors: Hernández-Espinosa Nayelli , Posadas-Romano Gabriel , Cervantes-López Fausto , González-Santoyo Héctor I. , Santacruz-Varela Amalio , Benítez-Riquelme Ignacio , Peña-Bautista Roberto J.
Published: April 2020

Las características visco-elásticas del gluten del trigo (Triticum aestivum L.) están definidas por la composición de las gliadinas, las gluteninas de alto (G-APM) y bajo (G-BPM) peso molecular y por la distribución de sus principales fracciones, la monomérica (rica en gliadina, PM), la polimérica soluble (rica en glutenina soluble, PPS) y la polimérica insoluble (rica en glutenina insoluble, PPI). Con el objetivo de examinar la relación e influencia de estas fracciones sobre las características reológicas de calidad de procesamiento, se evaluaron 117 líneas de trigo procedentes de seis poblaciones contrastantes en calidad, cultivadas bajo riego en Sonora, México (ciclo 2005-2006). La variedad ‘Avocet’ fue el progenitor materno común en cada una de las seis poblaciones. Se consideraron dos variantes en la composición de gluteninas en los loci Glu-A1, Glu-B1, Glu-D1, y tres en el locus Glu-B3. Las medias generales de las proporciones de las tres fracciones fueron de 42 %, 20.4 % y 37.5 % para PM, PPS y PPI, respectivamente. La distribución de fracciones fue distinta entre las seis poblaciones. El análisis estadístico mostró valores de predicción mayores a 30 % de las fracciones proteicas y del contenido de proteína, para estimar variables de calidad del mixógrafo, de fuerza de masa, y de fuerza del gluten medida con el alveógrafo. La magnitud del efecto de las fracciones sobre las características de calidad varió entre las poblaciones de trigo evaluadas. La fracción PM mostró correlaciones significativas con características de extensibilidad de la masa (Sedim-SDS; AlvP/L), mientras que la fracción PPI correlacionó con las variables de fuerza de gluten (MIXTD, %Tq/min y AlvW). La determinación de la distribución de fracciones proteicas, de la composición de G-APM y G-BPM, aunada a pruebas de elaboración rápida en laboratorio (proteína y Sedim-SDS), constituyen una importante herramienta para selección por calidad en el fitomejoramiento del trigo.
SISTEMA COMPATIBLE DE CRECIMIENTO Y RENDIMIENTO PARA RODALES COETÁNEOS DE Pinus patula
Authors: Santiago-García Wenceslao , De los Santos-Posadas Héctor M. , Ángeles-Pérez Gregorio , Valdez-Lazalde José René , Ramírez-Valverde Gustavo
Published: April 2020

Se desarrolló un modelo de crecimiento y rendimiento para Pinus patula con el enfoque de modelos explícitos de totalidad del rodal. En su construcción se utilizó información dasométrica derivada de tres remediciones en 42 parcelas permanentes de muestreo de 400 m2, en una crono-secuencia en Zacualtipán, Hidalgo, México. La productividad de los rodales se estimó mediante un patrón anamórfico de crecimiento, basado en el modelo de Hossfeld IV e interrelacionado con las ecuaciones de área basal, diámetro promedio y volumen total de fuste por hectárea, con la técnica de regresión aparentemente no relacionada. La mortalidad se ajustó a un modelo exponencial simple, con el método de mínimos cuadrados no lineales. Al simular el escenario de productividad del sitio promedio, el modelo obtenido detectó un periodo (turno técnico) para la maximización de volumen total de madera en rollo por hectárea de 25 años, lo que contrasta con el turno empírico de 50 años utilizado en la zona desde 1980.
ORIGEN, DOMESTICACIÓN Y DIVERSIFICACIÓN DEL FRIJOL COMÚN. AVANCES Y PERSPECTIVAS
Authors: Hernández-López Víctor M. , Vargas-Vázquez Ma. Luisa P. , Muruaga-Martínez José S. , Hernández-Delgado Sanjuana , Mayek-Pérez Netzahualcóyotl
Published: April 2020

Entre los años 9000 y 5000 a. C. en diferentes partes del mundo se domesticaron diversas especies vegetales, entre ellas el frijol común (Phaseolus vulgaris L). La importancia de identificar el centro de origen y de domesticación de una especie como P. vulgaris radica en que esas áreas son fuente primaria de poblaciones con genes útiles para el mejoramiento genético y de interés para el entendimiento de la evolución, diversificación y conservación de la especie. El conjunto de conocimientos recabados hasta hoy, como la edad de los restos fósiles y las características morfológicas, agronómicas y genéticas, establecen que el frijol común se originó en Mesoamérica y posteriormente se domesticó entre los 5000 y 2000 años a. C. en dos sitios del continente Americano: Mesoamérica (México y Centroamérica) y los Andes (Sudamérica). A partir del frijol silvestre se formaron dos acervos genéticos domesticados distintos, Mesoamericano y Andino. El uso de nuevas herramientas biotecnológicas y genómicas han ofrecido evidencias definitivas sobre el origen, domesticación y diversidad de P. vulgaris.
VARIABILIDAD EN CONTENIDO Y TIPOS DE ANTOCIANINAS EN GRANOS DE COLOR AZUL/MORADO DE POBLACIONES MEXICANAS DE MAÍZ
Authors: Salinas-Moreno Yolanda , García-Salinas Carolina , Coutiño-Estrada Bulmaro , Vidal-Martínez Víctor A.
Published: April 2020

El objetivo de este trabajo es revisar y discutir la información disponible sobre contenido y caracterización de antocianinas en el grano de maíz (Zea mays L.), con énfasis en los maíces de razas mexicanas. El contenido y tipo de antocianinas en el grano de maíz varían de acuerdo con el color del grano y la concentración del pigmento en las distintas estructuras. Los granos de color rojo magenta concentran las antocianinas en el pericarpio y la capa de aleurona y poseen hasta 10 veces más antocianinas que los de grano azul/morado, cuyas antocianinas se concentran en la capa de aleurona. El perfil cromatográfico de antocianinas en el grano magenta revela la presencia de hasta 11 antocianinas que derivan de cianidina (73.3 a 75.7 %), pelargonidina (8.3 a 9.3 %) y peonidina (16.0 a 17.5 %). Los maíces de grano azul/morado presentan un perfil parecido al de grano magenta, con predominancia de derivados monoacilados de cianidina. Gran parte de la información publicada sobre la caracterización de antocianinas en el grano de este cereal se ha realizado con granos púrpura o magenta de origen Andino, que se destina para la preparación de extractos de antocianinas. Los trabajos sobre contenido de antocianinas en maíces mexicanos de grano azul o azul/morado son reducidos, y aún más los orientados a la caracterización de sus antocianinas. Dado que en México este tipo de maíces se destinan a la elaboración de diversos alimentos tradicionales, conviene impulsar su investigación para determinar con mayor profundidad la variabilidad existente.
IBFIELDBOOK, AN INTEGRATED BREEDING FIELD BOOK FOR PLANT BREEDING
Authors: Lugo-Espinosa Oziel , Sánchez-Gutiérrez Tito M. , Camarena-Sagredo J. Gamaliel , Vargas Mateo , Alvarado Gregorio , Jarquin Diego , Burgueño Juan , Crossa Jose , Sánchez-Villeda Héctor
Published: April 2020

The development of an integrated breeding field book (IBFieldbook) for different crops involves the generation, handling and analysis of large amounts of data. Managing the integration of environmental, pedigree, and phenotypic information for plant breeding data analyses requires appropriate and successful software that facilitates breeders, technicians, and researchers management of the vast collected field information in an easy, efficient and interactive way. Users may also need methods to exchange information with different devices used to record information in the field. Additionally, collected information needs to be analyzed inside or outside the application, and then generate reports for germplasm improvement.
CONTROL OF Lasiodiplodia theobromae, THE CAUSAL AGENT OF DIEBACK OF SAPOTE MAMEY [Pouteria sapota (Jacq.) H. E. Moore and Stearn] GRAFTS IN MÉXICO
Authors: Tovar-Pedraza Juan M. , Mora-Aguilera José A. , Nava-Díaz Cristian , Téliz-Ortiz Daniel , Villegas-Monter Ángel , Leyva-Mir Santos G.
Published: April 2020

Dieback of sapote mamey [Pouteria sapota (Jacq.) H. E. Moore and Stearn] grafts caused by Lasiodiplodia theobromae significantly reduces the success of grafting in Mexican nurseries. Semi-commercial tests were conducted in a sapote mamey nursery during two grafting seasons to evaluate the effectiveness of a physical treatment (washing) and three chemical treatments (fungicide dip) on scions. Washing reduced disease incidence up to 31 %, whereas chemical treatment reduced it up to 62 %. The combination of washing and thiabendazole dip resulted in an incidence decrease of 81 %. Twelve other fungicides were screened in vitro to evaluate mycelial growth inhibition of L. theobromae. The pre-formulated mix of cyprodinil + fludioxinil was the most effective fungicide with EC50 value of 0.0043 μg mL-1, followed by pyraclostrobin + boscalid, prochloraz and tebuconazole with EC50 values < 0.1 μg mL-1, and iprodione and thiabendazole with EC50 values < 1.0 μg mL-1. This study provides novel information about strategies for controlling L. theobromae infection during the grafting process of sapote mamey and it also showed the effectiveness of several fungicides under in vitro conditions for controlling this plant pathogenic fungus.
IMPORTANCIA AGROBIOTECNOLÓGICA DE LA ENZIMA ACC DESAMINASA EN RIZOBACTERIAS, UNA REVISIÓN
Authors: Esquivel-Cote Rosalba , Gavilanes-Ruiz Marina , Cruz-Ortega Rocío , Huante Pilar
Published: April 2020

La rizosfera es la región del suelo con la mayor actividad microbiana, con una gran riqueza en nutrimentos, y en donde planta y microorganismo interaccionan mutuamente para su beneficio. Las rizobacterias promotoras del crecimiento vegetal (PGPR, por sus siglas en inglés), utilizan uno o varios mecanismos de acción para favorecer este crecimiento, ya sea estimulando la absorción de nutrimentos o evitando la acción de microorganismos patógenos. La actividad de la enzima desaminasa del ácido 1-aminociclopropano-1-carboxílico (ACC) o ACC desaminasa es un mecanismo que utilizan algunas PGPR para promover el crecimiento de plantas influenciadas por el estrés ambiental, la cual les trae dos ventajas importantes: disminuir las concentraciones de etileno en la planta e incrementar la disponibilidad de amonio en la rizosfera. Con ello, la actividad de la enzima ACC desaminasa mejora la nutrición vegetal y la resistencia a factores de estrés. Es posible que el uso de PGPR que contienen ACC desaminasa permita mejorar sistemas agrícolas de ambientes áridos o salinos o con problemas de contaminación por metales pesados. En esta revisión se reseñan aspectos básicos de la interacción entre las PGPR y la planta, y se analiza el mecanismo de acción de la enzima ACC desaminasa y su aplicación en problemas agrícolas y de biorremediación.
DIVERSIDAD AGRONÓMICA DE POBLACIONES DE JITOMATE TIPO “CHERRY” S. lycopersicum L. Y S. pimpinellifolium L. CON POTENCIAL EN EL MEJORAMIENTO GENÉTICO
Authors: Salgado-Meraz Lilia , Lobato-Ortiz Ricardo , Pérez-Flores Laura J. , Cruz-Izquierdo Serafín , Peña-Valdivia Cecilia , García-Zavala J. Jesús
Published: April 2020

La variabilidad genética de los cultivares modernos de jitomate (Solanum lycopersicum L.) es reducida, por lo que los fitomejoradores requieren explorar germoplasma nativo de jitomate y de parientes silvestres para localizar genes con valor agronómico y comercial. El objetivo de este estudio fue evaluar la diversidad agronómica de cuatro poblaciones nativas de S. lycopersicum premejoradas y de nueve silvestres de S. pimpinellifolium, junto con un testigo comercial tipo “cherry”, para identificar germoplasma sobresaliente. En dos ciclos de cultivo en invernadero se registraron 13 variables agronómicas, en un diseño de bloques completos al azar, con tres repeticiones y unidades experimentales de diez macetas con una planta por maceta. Entre poblaciones hubo significancia en todas las variables. La población nativa CP14063 fue sobresaliente, pues igualó estadísticamente al híbrido testigo en peso promedio de fruto y lo superó (12 %) en rendimiento (REN). La población CP14065 sobresalió en contenido de sólidos solubles (SST) e índice de sabor (IS), con 9.1 y 16.6. Las poblaciones silvestres LA1576, LA1584 y LA0373 también sobresalieron en SST con valores de 9.6, 9.0 y 8.3. Por lo anterior, esas poblaciones son valiosas como fuente de alelos para el mejoramiento genético de la calidad del jitomate. El análisis de conglomerados formó cuatro grupos, que permitieron diferenciar a las poblaciones nativas de las silvestres y del híbrido por sus características agronómicas. La caracterización de poblaciones nativas y silvestres de jitomate permitió detectar las sobresalientes con potencial para incorporarlas a programas de mejoramiento genético.
EVALUACIÓN DE TRES SISTEMAS DE CULTIVO in vitro PARA LA MULTIPLICACIÓN DE MICROCORMOS DE GLADIOLO
Authors: Chávez-García J. Antonio , Andrade-Rodríguez María , Juárez-López Porfirio , Villegas-Torres Oscar G. , Sotelo-Nava Héctor , Perdomo-Roldán Francisco
Published: April 2020

En la industria ornamental, el gladiolo (Gladiolus spp.) se encuentra dentro de las principales flores de corte a nivel mundial. La propagación es a través de cormos, con tasas de multiplicación bajas, lo que hace necesario el uso de técnicas de cultivo in vitro para obtener material vegetativo con características fisiológicas idénticas, uniformes y libres de enfermedades. Sin embargo, la investigación en multiplicación in vitro de gladiolo es escasa. El sistema de inmersión temporal (RITA) se usó con éxito para producir microcormos de gladiolo in vitro. A la fecha, el sistema de biorreactores de inmersión temporal (BIT) no se ha usado para producción de microcormos de gladiolo in vitro, lo cual implica sólo 25 % del costo de un sistema RITA. El objetivo fue evaluar tres sistemas de cultivo in vitro: medio semisólido, medio líquido en inmersión parcial y medio líquido en biorreactores de inmersión temporal (BIT), para la multiplicación de microcormos de gladiolo variedad “Ámsterdam”. En el sistema BIT hubo un incremento de 91 % en la multiplicación de microcormos en comparación con el sistema semisólido y de 100 % en relación con el sistema de inmersión parcial. También el número de brotes fue mayor (41.3) en el sistema BIT que en el sistema de cultivo en medio semisólido y en el sistema de cultivo en medio líquido con inmersión parcial (5.8 y 6.5 brotes por explante). Estos resultados permitieron establecer el uso de biorreactores de inmersión temporal como mejor sistema para la multiplicación masiva de microcormos de gladiolo.
Isolation of Lignin-Degrading Bacteria from Different Sources and Testing of Their Ligninolytic Activities
Authors: ÖZER Ayşegül , RAKICI Erva , INAN BEKTAS Kadriye , ÇANAKÇI Sabriye , BELDUZ Ali Osman
Published: April 2020

Nine
lignin-degrading bacteria were isolated from petroleum-contaminated soil and animal
manure samples and characterized by 16S rRNA sequence analysis. Three isolates
were identified as Enterobacter cancerogenus, two as Enterobacter
ludwigii, one as Citrobacter sedlakii,
one as Citrobacter farmeri, one as Klebsiella pneumoniae, and one as Citrobacter murliniae.
These  bacteria used ligno sulphate as
the sole carbon source but  did not
utilize kraft lignin (KL) as the sole source of carbon and energy. For this reason, basic nutrients, such as 1.0% glucose
(w/v) and 0.5% peptone (w/v), were used as additional carbon and nitrogen
sources to stimulate bacterial growth for KL decolorization.
Under these conditions, the isolates L1, L2, L3, L4, PT21, PT22, PT41, G1, and
C1 degraded kraft lignin by 37 %, 14 %, 20%, 43%, 48%, 51%, 28%, 60%, and %99,
respectively. The decolorization of Remazol Brilliant Blue R (RBBR) by the
isolates was analyzed. The isolates were decolorized at 20-90 % of RBBR,
respectively.
Antioxidant Capacity of a Bee Pollen Sample Obtained from Giresun, Turkey
Authors: ŞAHİN Hüseyin , KEMAL Mehmet
Published: April 2020

This study was related to evaluating the antioxidant of one pollen sample which was collected from Giresun, Turkey. The antioxidant properties of this sample were determined to use total phenolic contents (TPCs), total flavonoid contents (TFCs), proanthocyanidin contents (PCs), and ferric reducing antioxidant power (FRAP) assays. The mean of the total phenolic content was 6.33±0.11 mg GAE/ g sample, total flavonoid content was 1.88±0.11 mg QE/g sample, proanthocyanidin content was 0.86±0.00 mg CE/g sample, FRAP was also 72.38±0.21 µmoL FeSO4.7H2O/g, respectively. The obtaining results revealed that the pollen could be seen as a valuable natural source thanks to its significant antioxidant capacity.
THE EFFECT OF TAXATION ADMINISTRATION REFORM AND TAXTATION KNOWLEDGE ON COMPLIANCE OF PKP
Authors: Tanjung Abdul Hafiz
Published: April 2020

This research aims to give an overview about administrative reform taxation, taxtation knowledge and compliance taxable enterpreneur for VAT purposes (PKP) descriptively, and whether there is or not an influence of administrative reform taxation and taxtation knowledge towards compliance taxable enterpreneur for VAT Purposes on KPP Pratama Cibeunying Kaler. Data used in this research was primer data collected by using questionnaire which was distributed to respondents. Respondent in this research is PKP listed on KPP Pratama Cibeunying Kaler. Amount of samples obtained as many as 49 PKP taken by method Simple Random Sampling from 96 PKP as a population. As for the research method used was descriptive method and associative. While the data analysis method is in this research is Multiple Linear Regression Analysis. The result of this research shows that tax administrative reform taxtation and taxtation knowledge both partially and simultaneously positive and significant effect to compliance Taxable Enterpreneur for VAT Purposes on KPP Pratama Cibeunying Kaler.
MIND MAP TECHNOLOGIES IN TEACHING CADETS ENGLISH FOR SPECIFIC PURPOSES
Authors: Лопутько Олена
Published: April 2020

The article is devoted to the implementation of the mental mapping method into the process of English for the specific purposes study by the cadets of the higher educational establishments of the Ministry of Internal Affairs of Ukraine.

The analysis of the method’s usage as in the educational process so that in the following professional education is introduced. It is underlined, that the implementation of such kind of a technology will benefit not only the formation of a specific discipline’s knowledge but also the creation of complex cognitive skills on the interdisciplinary level with the possibility of their usage in the process of the professional duties’ performing. It is stated that the method gained the world wide acknowledgement and is in the process of constant perfection.

At the process of the method’s implementation the necessity to include the peculiarities of the cadets’ daily routine is stressed. The terms of study, educational process’s intensiveness, reglamented daily routine and service duties are encounted.

The main Tony Buzan’s author recommendations are worked out. On this ground the levels of the method’s implementation are introduced. The main successive stages of the work: initial, semi-productive and creative were proposed. Their qualitative amount depends on the subject’s knowledge, the skills of the work according to this technology and the level of the teacher’s inclusiveness.

Theoretical and practical background of the papers ground the effectiveness of the mind mapping technology’s implementation into the educational process of the higher educational establishments of the Ministry of Internal Affairs of Ukraine.

Key words: mental map, English for specific purposes, interdisciplinary, productive, creative, mental literacy.