bluuebunny/crossref_metadata_2025_split huggingface dataset:
Lipase-catalyzed synthesis and post-polymerization modification of new fully bio-based poly(hexamethylene γ-ketopimelate) and poly(hexamethylene γ-ketopimelate-co-hexamethylene adipate) copolyesters
Authors: Wu Wan-Xia 
Published: June 2020

Abstract
A novel full bio-based ketone-containing aliphatic polyester was prepared by enzyme-catalyzed polycondensation of diethyl γ-ketopimelate (DEK) with 1,6-hexanediol (HDO) using immobilized lipase B from Candida antarctica (CALB). The influences of polymerization conditions such as temperature, time, enzyme amount, and solvent amount on the molecular weight of poly(hexamethylene γ-ketopimelate) (PHK) were investigated. New fully bio-based poly(hexamethylene γ-ketopimelate-co-hexamethylene adipate) (poly(HK-co-HA)) copolymers with narrow polydispersity and well-defined composition were synthesized by copolymerization of DEK, HDO, and diethyl adipate. The structures of PHK and poly(HK-co-HA) copolymers were characterized by nuclear magnetic resonance, and their thermal characterization was examined by thermogravimetric analysis and differential scanning calorimetry. The degradation of PHK and poly(HK-co-HA) copolymers was studied. The post-polymerization modification of these polyketoesters via oxime click chemistry was further demonstrated.
Functions of early Iron Age handstones. Experimental and traceological approach.
Authors: Kufel-Diakowska Bernadeta , Baron Justyna , Buchner Aneta , Lipert Michał , Ziewiecka Izabela 
Published: June 2020

AbstractThe multi-faceted analyses proved that the community of early Iron Age settlement (7th century BC) at Milejowice in SW Poland used easily accessible, erratic pebbles of similar shapes for various purposes. Referring to the results of our experimental work, we examined a collection of 46 stone objects found in various contexts. Using microscopic analysis of use-wear, we identified the handstones for grinding grain and plant stalks and also used for pottery production (grog obtaining) and decoration (red pigment powdering). Some of the handstones served for only one purpose, while the other might have been used to process both hard and soft materials. The distribution of the handstones in the settlement area showed that they were strongly associated with household activities which included both food processing and pottery manufacturing.
Czech analytic agreement and the characteristics of littlepro
Authors: Veselovská Ludmila 
Published: June 2020

AbstractThis study deals with subject predicate agreement in Czech and the structure of a null subject. First, it introduces the concept of Null Subject Languages as it has been used in a generative framework. Then it shows the complex feature content of the Czech subject-predicate agreement morphology, arguing that the data repeatedly signal a division of the agreement features into two clear cut feature sets and two distinct agreement domains: (a) the lower, lexical domain insidevP containing the nominal n[±φ]feature set (Gender and N-Number), and (b) the higher, functional domain on the T head, which contains the functional D[±φ]feature set (Person and D-Number). The study relates the analysis to the present day microparametric concept of a Null Subject Parameter as in, e. g., the studies in Biberauer (2010), accepting the hypothesis of the checking of the subject-predicate agreement with two levels of predicate (separate headsvand T). It proposes that with pronominal subjects, the φ feature values can be re-set with respect to the speech act information located in the Aboutness Topic. Given the several levels of agreement, each of which can be licensed by a zero morpheme, the study proposes thatprois a complex entity consisting of two separate parts, each endowed with a distinct set of φ features.
Definiteness markers in theLife of St Petka
Authors: Šimko Ivan 
Published: June 2020

AbstractThe following paper addresses the problem of the diachronic development of definiteness markers in Bulgarian as attested in literature. As the previous research focused on the postponed article as the main definiteness marker in present-day Bulgarian, our study compares its use with that of other markers, namely the long-form adjective and the adnominal demonstrative pronoun. The traditional view sees a steady convergence between the literary norm and the dialectal use of the article. To challenge this view, we observe the frequency of use of all definiteness markers on an empirical basis. Оur study uses a sample containing six versions of the hagiography of St Petka of Tarnovo, also known as St Parascheva of Epibates. The text for this study is provided by a historical corpus of pre-standardized Balkan Slavic literature, which is being constructed to enable us comparisons between the dialectal and diachronic data. The samples are chosen to minimalize the effects of genre, structure and content differences on the results. The frequency of individual types of definiteness markers in respective versions of the text shows that the development of the damaskini language was not only different in respect to dialectal developments in the area, but in some respects even contrary to them.
Powder Characterization Techniques
Authors: Ramakrishnan P. 
Published: June 2020

Abstract
Knowledge of the characteristics of powders is of paramount importance for the successful development and application of powder metallurgy and particulate materials. Early characterization techniques were related to press and sinter powder metallurgy, dealing with the relatively coarser powders and with the analysis of individual as well as mass of powders. These analyses include structure, chemistry, morphology, size, shape, their distribution, different densities, flow, porosity, compressibility, friction, shear, residual stress, and so on to obtain a defect-free product. The advent of nanopowders and nanotechnology, metal injection molding, and more recent additive manufacturing has to deal with finer powders and different processing steps, which has resulted in the advancement of traditional powder characterization techniques to the next level, evolving newer and more innovative characterization techniques. Consequently, techniques such as x-ray photoelectron spectroscopy, scanning electron microscopy, laser light diffraction, x-ray computed tomography scan, atomic force microscopy, differential thermal analysis, etc., have been used with emphasis on powder cleanliness and internal particle porosity. The widely used industrial additive manufacturing process uses powder bed fusion that bonds successive layers of powders to facilitate the fabrication of parts with complex geometries. Thus, this article also explores the emerging trends in dynamic powder testing using a powder rheometer to measure dynamic flowability from measurement of axial and rotational forces acting on the rotating blade and the study of spreadability and flowability of powders by rotating drum instruments. A judicious selection of relevant and appropriate powder characterization techniques will ensure predictable powder behavior during the manufacturing process, resulting in consistent and reliable products.
Angioma esplénico de células litorales
Authors: Coico-León Amparo Y. , Meza-Capcha Kelly J. , Aurente-Sánchez Daniela I. , Verona-Rubio Roger , Samamé Pérez-Vargas Juan Carlos 
Published: June 2020

Presentamos el caso de un paciente varón de 62 años con masa dolorosa en hipocondrio izquierdo catalogado inicialmente como sarcoma irresecable, recibió quimioterapia y radioterapia sin respuesta, motivo por el cual se reintervino quirúrgicamente hallándose un tumor dependiente de bazo heterogéneo con perfil inmunohistoquímico de angioma de células litorales. El angioma de células litorales (ACL) es una lesión esplénica poco frecuente que se presenta asociado a síntomas genéricos como astenia, dolor regional y baja de peso, que requiere como manejo principal un abordaje quirúrgico. Suele ser una neoplasia asintomática de hallazgo incidental, afecta a ambos sexos por igual, cuyo diagnóstico es básicamente histológico e inmunohistoquímico con buen pronóstico luego de un abordaje quirúrgico inicial.
Manejo intraparto del tabique vaginal longitudinal
Authors: Velásquez-Rimachi Víctor , Osores-Flores Mariela , Cornejo Chigne Fanny 
Published: June 2020

El tabique vaginal congénito longitudinal (TVCL) es un defecto que puede asociarse a dispareunia o distocia durante el parto. Se presenta el caso de una mujer secundigesta nulípara de 20 años en quien se identificó un TVCL durante trabajo de parto. En el tacto vaginal se palpó una estructura elástica de aproximadamente 2 cm por detrás del introito vaginal. Durante la segunda etapa del trabajo de parto, se realizó una sección medial del tabique permitiendo el nacimiento de un producto vivo. En conclusión, un examen físico exhaustivo es suficiente para evidenciar la presencia de un tabique vaginal; sin embargo, existe la probabilidad de un diagnóstico intraparto de TVCL donde la formación médica ginecológica es necesaria para minimizar los riesgos asociados al parto.
Efecto de la rehabilitación en la calidad de vida de personas con lesión medular
Authors: Granados Carrera Julio César 
Published: June 2020

Introducción. La rehabilitación de las lesiones medulares (LM) busca la reinserción social de las personas afectadas y evalúa sus limitaciones según el grado de discapacidad. Objetivo. Determinar el efecto del programa de rehabilitación en la calidad de vida de personas con lesión medular. Métodos. Estudio analítico, observacional, prospectivo y longitudinal. Participaron personas con diagnóstico de lesión medular completa e incompleta de nivel cuadripléjico y parapléjico, masculino y femenino, entre 14 y 80 años, de etiología traumática y no traumática, y tiempo evolución menor de 10 años. Resultados. Se seleccionaron 65 personas como muestra censal que estuvieron hospitalizados en el período enero-junio 2017. La característica clínica más frecuentes fueron el nivel parapléjico ASIA A con el 30,8%, de etiología traumática con el 72,3% y con tiempo de evolución mayor de 3 años en el 40%. Se encontraron diferencias entre la calidad de vida inicial y final de los componentes físico y mental (p=0,001). Todas las escalas de los componentes físico y mental de la calidad de vida de inicio y fin también fueron significativas (p=0,001). Conclusiones. La calidad de vida en los componentes físico y mental mejoró en las personas con lesión medular al término de la rehabilitación. Hubo cambios positivos de la calidad de vida en el componente mental en el nivel parapléjico y de etiología no traumática; en las personas lesión medular incompleta ASIA C, también se encontró cambios de la calidad de vida en el componente físico.
Actitud hacia la ética profesional en estudiantes de postgrado de una facultad de medicina
Authors: Izaguirre Manuel , Vera Martha , Podestá Luis , Córdova Deysi 
Published: June 2020

Introducción. La profesión médica ha dejado de ser respetada por la sociedad como consecuencia del comportamiento no profesional de muchos de sus miembros, por la deshumanización, la corrupción y por la cosificación de la medicina al priorizar lo económico y el bienestar personal a lo social. Objetivos. Conocer la actitud hacia la ética profesional en estudiantes del postgrado de la Facultad de Medicina de la Universidad Nacional Mayor de San Marcos. Métodos. Se realizó un estudio descriptivo, transversal, de enfoque cuantitativo, utilizando como instrumento la escala de actitudes sobre ética profesional. Resultados. La actitud hacia la ética profesional fue positiva en el 81,5% e indiferente en el 18,5%. La actitud positiva hacia la ética profesional en las competencias cognitiva y técnica, sociales, éticas y afectivo emocionales fue de 88,8%, 69,2%, 80% y 87,7%, respectivamente. Conclusión. La actitud hacia la ética profesional fue positiva en el 81,5% e indiferente en el 18,5%.
100 años de la visita del Dr. Hideyo Noguchi al Perú y su contribución al estudio de la Enfermedad de Carrión
Authors: Shimabuku Roberto 
Published: June 2020

Se conoce poco sobre la visita al Perú en abril de 1920, hace 100 años, del Dr. Hideyo Noguchi y su contribución al estudio de la Enfermedad de Carrión o bartonelosis humana. Tal vez por ser una enfermedad casi exclusiva del Perú, aunque se han reportado casos en menor número en Ecuador y Colombia, sin tener repercusión internacional. Aun cuando su visita fue muy comentada por los diarios de la época, el tiempo han difuminado las actividades de la visita, cuyo objetivo era combatir un brote epidémico de fiebre amarilla en Paita. Permaneció tres semanas en Piura y una cuarta semana en Lima. Es en Lima que se enteró de la Enfermedad de Carrión y la controversia de que era una o eran dos enfermedades distintas (fiebre de La Oroya y verruga peruana). Un lustro después realizó numerosas investigaciones experimentales en New York contribuyendo a resolver la controversia.
Comparison of Surgical Treatment of Postoperative Abdominal Wall Hernias with and without Fixation of a Synthetic Mesh: Literature Review
Authors: Varanauskas Gintaras , Brimas Gintautas 
Published: June 2020

Objective. Review articles with postoperative abdominal wall repair without mesh suturing (sutureless hernioplasty). Methods. A systematic search of the literature published from 01/01/2004 to 31/12/2018 was performed using Medline, PubMed and the Cochrane Library databases. The search was performed using the keywords: postoperative hernia, incisional hernia, mesh hernioplasty, sutureless repair, sutureless hernioplasty, sutureless herniotomy. Results. For the present analysis 5 publications were identified. The quality of each study was assessed. The information about operative methods, main results, conclusions and recommendations was collected. Conclusions. According to the results and conclusions of reviewed articles, it can be stated that postoperative abdominal wall hernia repair without mesh suturing is a safe and can improve postoperative results, but there is insufficient evidence to determine if it is associated with better outcomes than hernioplasty with mesh fixation. Further clinical studies are needed to clarify whether this method is clinically important.
Artificial Skin INTEGRA Use in the Treatment of Large Melanocytic Nevi
Authors: Geležauskas Dainius , Dubosaitė Rūta 
Published: June 2020

Melanocytic nevi are congenital, benign, pigmented proliferations. They have high risk of malignancy, most frequently transform to malignant skin melanoma and 70% it occurs in the first life decade. The risk of malignant transformation increases proportionately to their size. The best way to avoid those risks is early and radical excision. In 1996 on the market appeared the Integra™ artificial skin, has made it possible to improve the methods for the elimination of large congenital nevi and significantly reduce the risk of malignant melanoma, at an early age.
2011–2019, in Children’s Hospital, Affiliate of Vilnius University Hospital Santaros Clinics, the Integra™ was used to treat congenital melanocytic nevi in four children. Implantation of the skin substitute Integra™ has been successful for all the patients, the prognosis was good.
The treatment of congenital melanocytic nevi is a necessity to avoid the risk of developing malignant melanoma. The rarity of this condition has led to the fact that so far there is no universal approach for all the cases. Integra™ artificial skin is an excellent choice for the treatment of congenital melanocytic nevi, especially for paediatric patients.
Cardiac Tumor in Newborn as the Marker of Tuberous Sclerosis: Clinical Case
Authors: Naumenko Elena I. , Anufrieva Valeria G. , Grishutkina Irina A. 
Published: June 2020

Background.The most common cardiac tumor in children is rhabdomyoma. Its frequency is 58.3% in the early neonatal period. Rhabdomyoma is associate with tuberous sclerosis pretty often (50-86% of all cases) and it be its diagnostic marker.Clinical case description.This article presents case study of the newborn from the mother with burdened obstetric and gynecological anamnesis, type 1 diabetes, nicotine addiction. Multiple mass lesions were revealed in the child’s heart on the 31 st week of gestation. On examination: systolic murmur over the heart region, fibrous nodules on the skin all over the body up to 1-5 mm in diameter, indurated on palpation. Diagnosed echocardiographically: multiple attached, round masses were revealed in the cavity of left ventricle of 7.9×4.1 mm in size, in outflow track of left ventricle (near the aortic root) — 9.3×4.8 mm, in the cavity of right ventricle — 4.3×3.2 mm, in the cavity of right auricle — 5.1×5.0 mm. Pathologic activity of cardiac conduction system was presented only by single supra-ventricular and ventricular extrasystoles due to the results of 24-hour monitoring.Conclusion.Children with cardiac rhabdomyoma diagnosed in prenatal period are threatened by tuberous sclerosis, thus, complex dynamic observation and molecular genetic testing is needed.
Karakteristik Alterasi dan Mineralisasi Tipe Epitermal Daerah Gunung Budheg dan Sekitarnya, Tulungagung, Jawa Timur
Authors: Ali Rinal Khaidar , Winarno Tri , Jamalulail Muhammad Ainurrofiq 
Published: June 2020

ABSTRAK Penemuan bongkah-bongkah vuggy quartz di sekitar Desa Pojok, daerah Gunung Budheg, Tulungagung, Jawa Timur, mengindikasikan adanya proses endapan mineral di daerah tersebut. Tujuan penelitian ini adalah untuk membahas lebih detail karakteristik alterasi dan mineralisasi serta tipe endapan mineral di daerah penelitian. Metode penelitian berupa pengamatan lapangan dilengkapi dengan analisis laboratorium petrografi, X-ray Difraction (XRD) dan mineragrafi. Satuan batuan di daerah penelitian tersusun atas enam satuan litologi yaitu satuan intrusi dasit, satuan lava andesit, satuan breksi andesit, satuan breksi polimik, satuan batugamping terumbu dan aluvium. Tipe alterasi di daerah penelitian adalah alterasi profilitik, argilik, argilik lanjut, dan silisifikasi. Alterasi profilitik dicirikan oleh melimpahnya mineral klorit. Alterasi argilik dicirikan dengan melimpahnya mineral kaolin, sementara argilik lanjut dicirikan oleh hadirnya mineral kaolinit dan alunit. Alterasi silisifikasi yang dicirikan oleh melimpahnya mineral kuarsa. Mineral logam yang ditemukan di daerah penelitian didominasi oleh kelompok mineral sulfida seperti kovelit, kalkosit, enargit, kalkopirit, pirit, dan jarosit. Emas native ditemukan berasosiasi dengan enargit. Sistem endapan mineral pada daerah penelitian merupakan sistem epitermal sulfidasi tinggi dicirikan oleh kuarsa berongga (vuggy quartz) yang termineralisasi dan kehadiran mineral kaolin sebagai mineral hasil alterasi.ABSTRACT The discovery of vuggy quartz boulders around Pojok Village, Gunung Budheg area, Tulungagung, East Java, indicates the presence of mineral deposits process in this area. This study aims to discuss detailed characteristics of alteration and mineralization as well as mineral deposits type in the study area. The research methods are field observations completed with petrography, X-ray Diffraction (XRD), and mineragraphy laboratory analysis. The rock unit in the study area consists of six lithology units, a dacitic intrusion, andesitic lava, andesitic breccia, poly-mix breccia, reef limestone, and alluvium. The study area's alteration types are profilitic alteration, argillic alteration, advanced argillic, and silicification alteration. The profilitic alteration characterized by the abundance of chlorite minerals. The argillic alteration characterized by the abundance of kaolin minerals, while the advanced argillic alteration by the presence of kaolinite and alunite minerals. The silicification alteration characterized by abundance quartz minerals. The metallic minerals dominated in the area are sulfide minerals such as covellite, chalcocite, enargite, chalcopyrite, pyrite, and jarosite. The native gold found in an association with enargite. The study area's mineral deposit system is an epithermal high sulfidation system characterized by mineralized vuggy quartz and the presence of kaolinite mineral as an alteration mineral.
Growth of ZnS:Ag:Cu Thin Film Deposited on Glass Substrates using Thermal Evaporation Technique for Alpha-photovoltaic
Authors: Mulyani Emy , Sujitno Tjipto , Purbandari Dessy , Ferdiansjah Ferdiansjah , Sayono Sayono 
Published: June 2020

This paper presents the research on the growth of ZnS:Ag:Cu thin film on a glass substrate as a radio-luminescent material. The SRIM/TRIM software is used to determine the optimum thickness based on an energy deposition depth of 5.485 MeV Am 241 alpha radiation source on ZnS:Ag:Cu material. To increase the adhesive strength of the coating, initially, the glass substrate is etched using a plasma glow discharged at 280°C for 15 minutes. Multiple coatings of ZnS:Ag:Cu were etched on the glass substrate; this was carried out using a thermal evaporation technique to achieve the optimal thickness (based on SRIM/TRIM simulation). The thin film thickness was observed using a scanning electron microscope (SEM). The optical properties of the un-etched, etched glass substrate and thin-film were characterized using UV-Vis spectrometer. Based on SRIM/TRIM simulation, the optimal thickness is 22 mm which can be achieved by coating three times. From optical properties of ZnS:Ag:Cu thin film and after being analysed using Taue plot method, it is found that the energy gap of ZnS:Ag:Cu thin film is 2.48 eV. It can be concluded that the addition of Ag and Cu doped decrease the energy gap of ZnS (3.66 eV).
IMPACTO DA CONDIÇÃO DA ESTRADA NA VIBRAÇÃO DURANTE O TRANSPORTE SIMULADO DE FRANGOS DE CORTE
Authors: Innocencio Cláudio Monico , Nääs Irenilza de Alencar 
Published: June 2020

IMPACTO DA CONDIÇÃO DA ESTRADA NA VIBRAÇÃO DURANTE O TRANSPORTE SIMULADO DE FRANGOS DE CORTE

CLÁUDIO MONICO INNOCENCIO1, IRENILZA DE ALENCAR NÄÄS2

1 Programa de Pós-Graduação em Engenharia de Produção, Universidade Paulista, rua Dr. Bacelar 1212, CEP 04026-002, São Paulo, SP, Brasil.monicoclaudio4@gmail.com
2 Programa de Pós-Graduação em Engenharia de Produção, Universidade Paulista, rua Dr. Bacelar 1212, CEP 04026-002, São Paulo, SP, Brasil.irenilza.naas@docente.unip.br

RESUMO: A estabilidade da carga nos caminhões de transporte de frangos, sob condições de infraestrutura variadas, depende da qualidade das estradas e da vibração mecânica. Este estudo objetivou analisar a vibração no transporte de aves, em função do pavimento de rodagem. Foi realizada uma simulação com o peso correspondente à carga de frango vivo (12 t) em um caminhão com as mesmas dimensões utilizadas pelos transportadores de aves. O trecho percorrido pelo caminhão foi da cidade de São Paulo (SP) até Contagem (MG). As vibrações foram registradas usando um acelerômetro por 19,28 h em um trajeto de 1105 km, com velocidade média de 57 km/h, com pavimentos e topografias diferentes. Os resultados indicam que a as maiores vibrações (0,828 m/s², 1,121 m/s², 2,151 m/s² e 1,299 m/s²) ocorreram em trechos da rodovia onde haviam os maiores problemas de qualidade no pavimento.

Palavras-chaves: avicultura industrial, agroindústria, logística, cadeia de suprimentos

IMPACT OF ROAD CONDITION ON VIBRATION DURING SIMULATED TRANSPORT OF BROILER CHICKENS

ABSTRACT: The load stability on broiler chickens transport under various infrastructure conditions depends on road quality and mechanical vibration. This study aimed to analyze the vibration in the poultry transport, as a function of the road surface. A simulation was performed with the weight corresponding to live chicken load (12 t) in a truck with the same dimensions used by poultry transporters. The truck traveled from São Paulo (SP) to Contagem (MG). The vibrations were recorded at 19.28 h in a 1105 km route, with an average speed of 57 km/h, with different pavements and topographies. Results indicate that the highest vibrations found (0.828 m/s², 2.151 m/s² and 1.299 m/s²) occurred in sections of the highway where there were major pavement quality problems.

Keywords: Industrial poultry production, agribusiness, logistics, supply chain.