bluuebunny/crossref_metadata_2025_split huggingface dataset:
Silver birch health condition in the parks of Kharkiv National Agrarian University named after V.V. Dokuchaev
Authors: Meshkova Valentyna L. , Koshelyaeva Yana , Kolienkina Maryna S. 
Published: April 2020

Recently health condition of silver birch (Betula pendula Roth.) stands worsens in the forest and ornamental stands. It is important to know the probability of its improvement or deterioration in particular stands to take the necessary measures in time.
The aim of the research was to assess the trends in the health condition dynamics of silver birch stands depending on their age class and the initial health condition of the trees. The research was carried out in 2015-2019 in the Silver birch linear stands in two parks of Kharkiv National Agrarian University named after V.V. Dokuchaev (49º53' N, 36º27' E). Five sample plots of the 3th age class are located in Veterans Park and the other 4 sample plots of the 5rd age class – in Arboretum of this University.
For each inspected tree diameter at breast height (DBH) was measured in 2015 and 2019. Crown defoliation and health condition class were visually assessed in July of each year. Health condition index (HCI) was calculated as mean weighted from trees number of each category of health condition, separately for all living and dead trees (HCI1–6) and for living trees only (HCI1–4). Tree mortality was expressed as a percentage of lost (dead) trees for research period out of the total trees in 2015.
It was shown that the silver birch stands of the 3rd age class didn't change their health condition for 2015-2019 or improved it. The stands of the 5th age class worsened their health condition in three sample plots and improved it in one sample plot. Within each age class, the stands of lower diameter class had a worse health condition. Tree mortality was registered in two out of five sample plots in the stands of the 3rd age class and in three out of four sample plots in the stands of the 5th age class. In the stands of the 5th age class the trees from the stands of the smallest diameter class characterized by the highest mortality level (22.4%) and the worse health condition (HCI1-4 =2.8).
In pooled sample of plots, the death probability for silver birch trees, which 4 years ago had the 1st class of health condition is 3.5%, those of the 2nd class have the death probability of 10.7%, the trees of the 3rd class – 36.9%, those of the 4th class – 84.6%. As for an initially weakened stand, its trees which 4 years ago had the 1st, the 2nd, the 3rd or the 4th health condition class, have the death probability of 5%, 18.5%, 33.3%, and 100% respectively.
Thus, the weakened silver birch stand which contains trees of 1st - 3rd classes of health condition is able to restore condition to a healthy one, and the deterioration may be expected only for severely weakened trees (having 3rd class of health condition in 2015). The weakened silver birch stand which has the trees of 1st - 4th health condition classes is most likely to weaken even more severely over 4 years.
To Act or not to Act . Białowieża. Forest under Conflicting Ecological Paradigms
Authors: Von Gadow Klaus , Cieszewski Chris J. , Kershaw Jr. John A. 
Published: April 2020

Białowieża, a national treasure to the people of Poland and a unique ecosystem of historical significance, has become a site of an intense international debate, following a large scale Bark Beetle outbreak. The controversy centers around two opposing ecological paradigms: 1). Ecosystems without human interference would eventually reach a climax state that is self-regulating and in equilibrium (The No Action paradigm); 2). Trees infected by Ips typographus should be salvaged in order to reduce CO2 emissions, lower the fire risk, and prevent the collapse of healthy tree communities (The Adaptive Action paradigm).
This contribution analyzes historical evidence and recent issues related to the management of Poland’s Białowieża Forest and presents a proposal towards a negotiated landscape design that allows for small-scale spatial mixing of different land-uses. Białowieża can become a unique example of a continuously evolving forest landscape that is resilient to fluctuating environmental conditions, human values and societal demands.
Моделювання процесу енергетичного переходу методом системної динаміки: енергетичні кооперативи як інструмент переходу до сталого використання деревної біомаси в житловому секторі
Authors: Zahvoyska Lyudmyla , Bletska Olha 
Published: April 2020

Домінуюча парадигма енергогенерування централізована, високовуглецева і породжує енергетичну бідність. Імператив глобальної зміни клімату пріоритезує процес енергетичного переходу, одним із аспектів якого є стале енергетичне використання деревної біомаси. Обґрунтовано необхідність трансформації енергетичного сектора шляхом використання холістичних методів дослідження і деліберативних методів прийняття рішень. Побудовано причинно-наслідкову модель процесу енергетичного переходу і потокову модель поширення екоінновацій для процесу формування енергетичних кооперативів. За результатами регресійного аналізу макроекономічних показників глобальної конкурентоспроможності країн виконано параметризацію потокової моделі для умов України. За результатами моделювання, проведеного з використанням цієї моделі, встановлено, що процес формування енергетичних кооперативів відбуватиметься повільно, насамперед – через неефективність інституцій. Однак відповідно до здійсненого нами опитування в м. Борислав встановлено, що 18,1 % респондентів знайомі з концепцією енергетичних кооперативів, з яких кожен п’ятий готовий вкласти власні кошти в їхній розвиток, близько половини опитаних бажають змінити системи опалення в своїх помешканнях, що значно простіше зробити членам кооперативів. Використовуючи причинно-наслідкову модель, протестовано запропоновані нами SWOT-стратегії процесу покращення енергетичного використання деревної біомаси в житловому секторі, визначено додаткові важелі впливу, виявлено потенційні небажані наслідки і джерела непевності, що сприятиме глибшому розумінню і кращому управлінню процесом енергетичного переходу.
Synthesis, characterization and antimicrobial studies of new chiral amide-Schiff base derivatives
Authors: YÜKSEKDANACI Seda , ASTLEY Demet , YAŞA İhsan 
Published: April 2020

In this study, new chiral Schiff bases (3-9) obtained from the reaction of chiral amide derivatives with different substituted aromatic aldehyde were synthesized. All synthesized compounds structures were characterized by FTIR, 1H-NMR, 13C-NMR and elemental analysis. All of the new synthesized compounds were tested in vitro against Staphylococcus aureus, Bacillus cereus, Escherichia coli, Salmonella thyphimirium, Klebsiella pneumoniae, Enterococcus faecalis, Pseudomonas aeruginosa, Candida albicans for their antibacterial and antifungal activities. All compounds have shown moderate to good antibacterial activity against Gram-positive and Gram-negative bacteria. Among the compounds tested compound 7 showed most potent inhibitory action against test organisms.
A HILIC stationary phase fuctionalized with glutathione by thiol-ene chemistry on monodisperse-porous polymer microparticles
Authors: KİP Cigdem 
Published: April 2020

Monodisperse-porous
microparticles functionalized a with a zwitterionic ligand were synthesized as
a new stationary phase for hydrophilic interaction chromatography.
Monodisperse-porous poly(3-trimethoxysilylpropyl methacrylate-co-ethylene
dimethacrylate), poly(TMSPM-co-EDMA) microspheres (6 μm in size) were obtained
with different seed latex/monomer ratios and diluent compositions by multistage
microsuspension copolymerization. The zwitterionic chromatographic ligand
containing thiol moiety (i.e. glutathione) were covalently attached onto the
TMSPM attached-poly(TMSPM-co-EDMA) microparticles. The selected starting
material allowed the direct attachment of zwitterionic ligand onto the support material using thiol-ene chemistry.
The derivatized microparticles were slurry packed into the microbore columns
with 2 mm i.d. and used as stationary phase for the separation of nucleosides
in hydrophilic interaction chromatography with the plate numbers up to 54.000
plates/m. The results showed the usability
of tailored poly (TMSPM-co-EDMA)
microparticles as a stationary phase and thiol-ene chemistry in the manufacture
of a chromatographic stationary phase with high efficiency in hydrophilic liquid
chromatography applications.
Knowledge, attitudes and quality of life of caregivers towards asthma in their children: a Nigerian perspective
Authors: Kosisochi Chinwendu Amorha  , Ayogu Ebere Emilia , Ngwoke Blessing Adaora , Okonta Eleje Oboma 
Published: April 2020

Introduction: The burden of uncontrolled asthma is high and caregivers can offer support in the management of asthma. Asthma is one of the most common chronic diseases in children. The objective of this study was to assess the knowledge, attitudes, and quality of life (QoL) of caregivers toward asthma in their children.
Methods: This cross-sectional study was conducted in the Paediatric Respiratory Unit of the University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu State (July 2017-September 2017). We utilized a 46-item questionnaire comprising knowledge and attitude domains and the 13-item Pediatric Asthma Caregiver’s QoL Questionnaire (PACQLQ). Data were analyzed using the IBM SPSS Version 25.0. Statistical significance was set at p < 0.05.
Results: Fifty-one caregivers participated in the study. More than half (n = 36, 70.6%) of the caregivers were 40 years old and above, female (n = 37, 72.5%), graduates from higher institutions (n = 33, 64.7%), and self-employed (n = 27, 52.9%). About a quarter (n = 13, 25.5%) had a family history of asthma and a similar proportion (n = 14, 27.5%) knew the three main symptoms of asthma.
Conclusion: Less than half (n = 24, 47.1%) of the caregivers had good asthma knowledge. Dust (n = 35, 68.6%) and smoke (n = 31, 60.8%) were identified as the most common asthma triggers in their children. The majority of the caregivers (n = 41, 80.3%) agreed that most people can have well-controlled asthma without seeing a doctor regularly. Overall, less than half of the caregivers (n = 24, 47.1%) showed positive attitudes toward their children’s asthma. The overall score for the PACQLQ was 3.91 (0.98) which implied a poor QoL. The caregivers had both impaired activity and emotional function from managing asthma in their children. More female caregivers had better knowledge about asthma than their male counterparts (t = −3.178; df = 49; p = 0.003). Less than half of the caregivers had good asthma knowledge and positive attitudes toward asthma in their children. They had an impaired QoL from managing asthma in their children.
Implantação do Planejamento Tributário em Empresas Prestadoras de Serviço
Authors: Arakaki João Felipe Leguizamon , Assunção Ayron Vinícius Pinheiro de , Lopes Michelle Da Rosa , Zanão Eduardo Henrique 
Published: April 2020

O presente artigo trata da implantação do Planejamento Tributário para empresa de prestação de serviço, como aplicação das ferramentas de software Open Project e WBS Chart Pro. As razões que embasaram este estudo estão vinculadas com as dificuldades enxergadas pelo empresariado para tratar as questões tributárias, visto a complexidade das leis tributárias que vigoram no país, o que acaba levando inúmeros empresários a praticarem atos ilegais, caracterizados como evasão fiscal. Os resultados obtidos possibilitaram, além da implantação do novo produto, uma nova organização empresarial, levando ao corpo técnico uma nova visão do que vem a ser o gerenciamento de projetos e quais as suas infinitas possibilidades dentro do mundo corporativo. Palavras-chave: Planejamento Tributário. Open Project. Gerenciamento de Projetos. AbstractThis paper deals with the implementation of Tax Planning for a service company, as an application of the Open Project and WBS Chart Pro software tools. The reasons for this study are related to the difficulties faced by the business community in dealing with tax issues, the complexity of the tax laws in force in the country, which leads many businessmen to engage in illegal acts, characterized as tax evasion. The results obtained enabled, in addition to the implementation of the new product, a new business organization, leading to the technical staff a new vision of what is project management and what its infinite possibilities within the corporate world are. Keywords: Tax Planning; Open Project; Project management.
Catasetum (Orchidaceae: Catasetinae) en Colombia: lista actualizada
Authors: Bonilla Miguel M. , Aguirre A. Carolina , Yepes R. Diego , Gallego D. Enmanuel , Otero J. Tupac 
Published: April 2020

Colombia se considera uno de los países más ricos en orquídeas, a pesar de que ha sido poco estudiado en algunas bioregiones del país. Los registros del género Catasetum corresponden entre 29 a 31 especies, sin embargo, existe un sinnúmero de equivocaciones en la identidad taxonómica interespecífica, como en el uso de sus sinónimos. Por tal motivo, el objetivo del presente trabajo es conocer la diversidad de Catasetum en Colombia. De esta manera, se realizaron salidas de campo, revisión de colecciones, literatura y herbarios. En la lista actualizada se registran 38 especies, que incluyen especies poco conocidas y confundidas como C. dejeaniorum, C. aff. juruenense, C. mooeri, C. tenebrosum y los híbridos naturales como C. aff. × apolloi, C. × dunstervillei y C. × violascens. De las cinco especies endémicas, C. blepharochilum y C. tricorne, se conocen solo de espécimen tipo, y C. lucis es exclusivo de Santander y cultivado, para C. rectangulare y C. villegasii, se realizan comentarios taxonómicos. La Amazonía y los Andes concentran la mayor diversidad y, el Caribe es la zona menos explorada. Además se incluyen los caracteres diagnósticos, rangos altitudinales, relaciones geográficas y los sinónimos utilizados en el país para algunas especies con identidad taxonómica dudosa. También, se resalta la necesidad de realizar exploraciones en zonas de vacíos de colecta, como el Atlántico y, el Amazonas, centro de diversidad del grupo, con la finalidad de establecer futuros planes de manejo y conservación.
Antifungal Activity and Chemical Constituents of the Essential Oil from Leaves of Nectandra longifolia (Ruiz & Pav.) Nees.
Authors: Plazas-Jiménez Daniel , Macias-Villamizar Victor Enrique , Coy-Barrera Ericsson 
Published: April 2020

“Yellow moena” (Nectandra longifolia: Lauraceae) is a fragrant leaves-possessing plant commonly used for timber purposes. Nevertheless, so far, there is not available information about its chemical composition. Thus, in the present work is described the components of the essential oil from N. longifolia leaves. The oil was extracted by steam distillation and analyzed by GC/FID and GC/MS. Twenty eight compounds were therefore identified. The main components were found to be terpinen-4-ol (53.1%), α-terpinene (6.8%), α-phellandrene (4.5%), and β-pinene (3.8%). The chemical composition of essential oil from N. longifolia leaves was consequently in agreement to that of several neotropical Lauraceae plants. In addition, the oil exhibited good antifungal activity against F. oxysporum through dose-dependent mycelial growth inhibition (using amended media and fumigant assays).
Antioxidant Activity of Plant Extracts from Colombian Coffee-Growing Eco-Region
Authors: Blandón Aura M. , Mosquera Oscar M. , Sant’ana Antônio E. G. , Dos Santos Aldenir F. , Pires Luana L. S. 
Published: April 2020

The present study describes the in vitro antioxidant activity of methanol extracts of 34 plant species collected in the Colombian coffee-growing eco-region belonging to Euphorbiaceae, Piperaceae and Solanaceae families. The antioxidant properties of extracts were evaluated by determining radical scavenging power measured with a DPPH assay. The methanolic extracts of Hyeronimia antioquiensis, Mabea montana, and Alchornea grandis species (Euphorbiaceae), presents EC50 values equal to 0.686, 12.35, and 13.01 µg/mL, respectively, showing high antioxidant potential.
Preliminary Study on the Influence of Different Carbonation Curing Processes on Binders Based on Magnesium Oxide-Rich Powder Blended with Tungsten Mining Waste Mud
Authors: Grünhäuser Soares Erick , Castro-Gomes João 
Published: April 2020

In this preliminary study, the effect of the pre-drying stage, water immersion, carbonation curing cycles, and/or drying stage on carbonation curing of magnesium oxide-rich powder (MRP) was investigated. In addition, a blend of tungsten mining waste mud (TMWM) with MRP was also evaluated. The MRP and TMWM used have maximum grain sizes of 125 μm. The cement pastes were produced with 0 and 50 of TMWM weight percentage. The specimens were compacted into cylindric moulds (∅ = 20 mm; h = 40 mm) under 30 MPa and, subsequently, submitted to five different processes of curing involving a pre-drying stage before carbonation, rapid water immersion cycles, additional drying periods, and different carbonation curing periods. The atmosphere of the pressurized carbonation curing chamber was controlled to provide a CO2 concentration of > 99%, the partial pressure of 1 bar and temperature of 60°C. The influence of the curing processes on the compressive strength of each mix was determined 12 hours after the carbonation curing period. This study demonstrates that the water content during the curing process plays an important role in the increase of the hardening process and on the compressive strength.
Keywords: Carbonation curing, magnesium oxide, mining waste, curing processes, magnesium-based cement
Las enfermedades intercurrentes durante la gestación y sus consecuencias sobre el peso del recién nacido
Authors: Stein-Backes Marli Terezinha , Flores-Soares Maria Cristina 
Published: April 2020

Objetivo: verificar si las enfermedades intercurrentes presentes en la gestación aumentan las probabilidades de que la madre tenga un niño con bajo peso al nacer (BPN).Metodología: se trata de un estudio de casos y controles realizado en el periodo de abril a noviembre del 2003, en la ciudad de Río Grande/RS, Brasil. La recolección de datos se hizo a través de un cuestionario aplicado a 547 madres que presentaron parto en las maternidades de los dos hospitales de este municipio.Resultados: la presencia de hipertensión arterial transitoria o crónica durante la gestación y la amenaza de aborto en el embarazo actual incrementaron el riesgo de las madres de tener un recién nacido de BPN (OR = 3,77; IC 95% 1,40-10,17 y OR = 6,27; IC 95% 1,53-25,76, respectivamente).Conclusión: la asistencia prenatal diferenciada para las gestantes con hipertensión arterial transitoria y crónica y aquellas que presentaron amenaza de aborto podría ser importante para reducir el bajo peso al nacer asociado.
Relación entre peso al nacer y algunas variables biológicas y socioeconómicas de la madre en partos atendidos en un primer nivel de complejidad en la ciudad de Manizales, Colombia, 1999 al 2005
Authors: Castaño-Castrillón José Jaime , Giraldo-Cardona José Fernando , Murillo-Díaz Carlos Andrés , Jordán-Ordóñez Yuliana , Orozco-Arango Jaime Andrés , Robledo-Vásquez Paulina , Velásquez-Duque María del Pilar , Villegas-González Juliana , Villegas-Arenas Óscar Alberto 
Published: April 2020

Objetivo: describir la relación existente entre el peso al nacer y algunas variables socioeconómicas y biológicas de la madre.Materiales y métodos: se llevó a cabo un estudio de corte transversal. Se revisaron 1892 historias clínicas de partos atendidos entre enero de 1999 y diciembre del 2005 en la Clínica La Enea de ASSBASALUD, ESE. Las variables estudiadas fueron el peso y sexo del recién nacido; edad cronológica, escolaridad, nivel socioeconómico, procedencia, tipo de unión conyugal de la madre y el diligenciamiento de la hoja del Centro Latinoamericano de Perinatología.Resultados: la prevalencia de bajo peso al nacer fue de 4,4%. El tipo de unión conyugal inestable (p=0,03) y recién nacido de sexo femenino (p=0,00) fueron las variables de mayor significancia de estadística.Conclusión: la prevalencia de bajo peso al nacer es menor a las descritas en otras poblaciones en Latinoamérica. No se encontró asociación con otros factores previamente descritos.
Diabetes y embarazo
Authors: Contreras-Zúñiga Eduardo , Arango Luis Guillermo , Zuluaga-Martínez Sandra Ximena , Ocampo Vanesa 
Published: April 2020

Objetivo: el objetivo del presente trabajo es revisar la epidemiología, la clasificación clínica, el diagnóstico y el tratamiento de la diabetes pregestacional y gestacional.Materiales y métodos: con las palabras clave diabetes, diabetes gestacional, diabetes pregestacional, y embarazo se buscó información en la bases de datos de Pubmed/Medline, Cochrane, SciELO, al igual que en las referencias de los artículos de revistas y textos, especialmente de los últimos cinco años.El resultado de esta búsqueda arrojó 79 referencias, de las cualessetomaronlas35másrelevantes,teniendo en cuenta principalmente metaanálisis, artículos de revisión, estados del arte, estudios aleatorizados doble ciego y guías clínicas.Resultados: el buen control de la glicemia en el embarazo evita o disminuye las complicaciones maternas y fetales. En el 0.2-0.3% de todos los embarazos se conoce que la mujer ha tenido diabetes previa a la gestación, y la diabetes gestacional complica el 1-14 % de los embarazos. El criterio de la OMS exige una glicemia > 140 mg/dl a las dos horas de postcarga con 75 g de glucosa oral para hacer el diagnóstico de diabetes gestacional. También se puede hacer el diagnóstico con dos glicemias de ayuno > 105 mg/dl o una glicemia de ayuno > 126 mg/dl o una glicemia en cualquier momento > 200 mg/dl.Conclusión: un mejor control de las cifras de glucemia durante el embarazo está asociado a un mayor bienestar fetal.
Histerosacropexia laparoscópica para tratamiento conservador en pacientes con prolapso apical puro: reporte de 4 casos en Medellín, Colombia, 2006
Authors: De Los Ríos José F. , Restrepo José L. , Castañeda Juan D. 
Published: April 2020

Objetivo: describir la histerosacropexia por laparoscopia y sus resultados a corto plazo, en una serie de pacientes con prolapso apical puro y contraindicación para histerectomía. Institución:Unidad de Cirugía Endoscópica Ginecológica, Clínica del Prado, Medellín, Colombia.Diseño: reporte de cuatro pacientes con prolapso apical puro y deseo de conservación uterina.Variables para medir: edad, indicación de cirugía, tiempo quirúrgico, sangrado estimado, complicaciones intraoperatorias, tiempo de hospitalización, incidencia de disfunción urinaria, defecatoria o sexual, aparición de incontinencia urinaria posoperatoria, complicaciones atribuibles a la malla, incidencia de recaídas, tasa de curación subjetiva, tasa de curación objetiva, satisfacción con el procedimiento, incidencia de embarazos después de cirugía.Resultados: edad promedio: 53 años; tiempo quirúrgico: 67 minutos (60-75); pérdida sanguínea: 30 cc (10-50); tiempo promedio de hospitalización: 15 horas (6-24); no hubo complicaciones intraoperatorias. En el seguimiento durante 12 meses en promedio (8-17) no hay recidivas ni signos de disfunción urinaria, defecatoria o coital en las pacientes sexualmente activas. No hay casos de incontinencia urinaria posoperatoria. Las pacientes están satisfechas con la intervención realizada. Aún no hay ningún embarazo.Conclusiones: la histerosacropexia laparoscópica podría ser una alternativa viable en nuestro medio para el tratamiento de pacientes con prolapso apical puro y contraindicación para histerectomía. Se requieren series mayores para determinar su papel en la práctica clínica.