bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental Study of Acoustic Performance of Porous Metals at High Temperatures
Authors: Zhang Jun Zhe , Wang Xiao Peng , Zhang Bo , Zhang Li Hong
Published: October 2018

Based on an improved two-microphone transfer function method, a testing system for the exploration of acoustic performance of porous materials under high temperature conditions was developed with porous foam copper as one of research objects. The acoustic performances of some porous metallic materials were studied in the temperature range of 300°C to 700°C under the premise of ensuring the temperature stability that makes the measurement uncertainty be ± 6°C at high temperatures. The sound absorption coefficient and the acoustic impedance ratio of porous coppers at different ambient temperatures were acquired accordingly. And then the influence of the variation of temperature fields on the acoustic properties of porous metals was analyzed. The experimental results are in good agreement with the theoretical analysis, which proves the rationality of design of the device and provides important references and specific guidance for future study of the acoustic properties of porous metal materials.
Recurrent Supraventricular Tachycardia and Necrotizing Enterocolitis: A Causative Role or a Simple Association? A Case Report and Literature Review
Authors: Nakib Ghassan , Sajwani Sameer , Abusalah Zahreddin , Abdallah Abdelazeim , Ibrahim Nada , Fattah Aseel , Bussani Rossana , Calcaterra Valeria , Pelizzo Gloria
Published: October 2018

Insufficiency in mesenteric flow is a risk factor for the development of necrotizing enterocolitis (NEC). Recurrent episodes of supraventricular tachycardia (SVT) can lead to gut ischemia, with subsequent reperfusion injury. We present a term infant who developed NEC at 37 days of life after refractory SVT and reverted to sinus rhythm on day 23 and 25 of life. Resected stenotic ileum and transverse colon demonstrated inflammation with ischemia. This is the first case of NEC following SVT in a term infant without a congenital morphologic abnormality. In view of the temporal sequence of events, and in the absence of other risk factors for NEC, the SVT and NEC were likely causally related.
Surgical Approach to Giant Ovarian Masses in Adolescents: Technical Considerations
Authors: Persano Giorgio , Severi Elisa , Cantone Noemi , Incerti Filippo , Ciardini Enrico , Noccioli Bruno
Published: October 2018

Ovarian neoplasms arising from the surface epithelium are rare in the pediatric population; their knowledge is therefore limited and the appropriate management is poorly defined. We describe our experience and suggest our surgical approach to adolescents affected by voluminous ovarian masses. Two 15-year-old adolescents were admitted to our institution in 2017 for multilobulated, fluid-filled masses measuring over 30 cm arising from the ovaries. The cystic component was drained intraoperatively with a spillage-free technique, consisting in the application of a sterile autoadhesive transparent drape on the cyst and the insertion of a 12 Ch pleural drain, secured with a purse-string suture. Unilateral salpingo-oophorectomy was then carried out. Histology revealed mucinous cystadenoma in both patients. Surgical treatment of ovarian masses should aim at both radically excising the tumor and preserving the fertility of the patients. Decompression with spillage-free techniques can be useful to achieve radical therapy with limited manipulation of tissues.
Predatory journals
Authors: Sharma H , Verma S
Published: October 2018

In today's world when biomedical science is experiencing continuous threats from various sources, publication of research articles in predatory journals has created a major havoc. These predatory journals are publishing worthless biomedical science which will haunt genuine researchers and keen readers of authentic biomedical journals for several decades. Hence, researchers of various disciplines and academic experience should be continuously made aware of these predatory publishers and potential ways to recognize them. The main aim of this article is to discuss the issues related to predatory publishing, techniques and strategies used by these publishers to prey young inexperienced researchers, and disadvantages of publishing in predatory journals.
Transcaval Ureter
Authors: Arya Mukesh Chandra , Baid Mayank , Tiwari Rahul , Vasudeo Vivek , Singh Abhiyutthan
Published: October 2018

Transcaval ureter is a rare condition caused by abnormality in the embryogenesis of the inferior vena cava (IVC). It results from a segmental duplication of the IVC which creates a venous ring that encircles the right ureter. Here, we report a case of a 42-year-old female who presented to us with a history of right flank pain for 2 years. Ultrasonography, intravenous urogram, and contrast-enhanced computed tomography (CECT) scan of the abdomen suggested it to be a retrocaval ureter. On exploration, contrary to the report of imaging, the ureter was found to transverse in between two segments of IVC and thus on table, a diagnosis of the right transcaval ureter as the cause of obstruction was made. The patient underwent segmental ureteral resection followed by ureteroureterostomy. Follow-up CECT scan was done to document two segments of IVC and thus confirm our intraoperative finding.
Recovering Keynesian Phillips curve theory: hysteresis of ideas and the natural rate of unemployment
Authors: Palley Thomas
Published: October 2018

Economic theory is prone to hysteresis. Once an idea is adopted, it is difficult to change. In the 1970s, the economics profession abandoned the Keynesian Phillips curve and adopted Milton Friedman's natural rate of unemployment (NRU) hypothesis. The shift was facilitated by a series of lucky breaks. Despite much evidence against the NRU, and much evidence and theoretical argument supportive of the Keynesian Phillips curve, the NRU hypothesis remains ascendant. The hypothesis has had an enormous impact on macroeconomic theory and policy. 2018 is the 50th anniversary of Friedman's introduction of the NRU hypothesis. The anniversary offers an opportunity to challenge rather than celebrate it.
The 4.2 ka BP event in the Central Mediterranean: New data from
Corchia speleothems (Apuan Alps, central Italy)
Authors: Isola Ilaria , Zanchetta Giovanni , Drysdale Russell N. , Regattieri Eleonora , Bini Monica , Bajo Petra , Hellstrom John C. , Baneschi Ilaria , Lionello Piero , Woodhead Jon , Greig Alan
Published: October 2018

Abstract. We present new data on the 4.2 ka BP event in the central Mediterranean from Corchia Cave (Tuscany, central Italy) stalagmite CC27. The stalagmite was analysed for stable isotopes (δ13C δ18O) and trace elements (Mg, U, P, Y), with all proxies showing a coherent phase of reduced cave recharge between ca. 4.5 and 4.1 ka. Based on the current climatological data on cyclogenesis, the reduction in cave recharge is considered associated to weakening of the cyclone centre located in the Gulf of Genoa in response to reduced advection of air masses from Atlantic during winter. These conditions, which closely resemble a positive North Atlantic Oscillation (NAO)-like configuration, are associated with cooler and wetter summers, with reduced sea warming, which reduced the western Mediterranean evaporation during autumn-early winter further reducing precipitation.
The 4.2 ka BP event in the vegetation record of the central Mediterranean
Authors: Di Rita Federico , Magri Donatella
Published: October 2018

Abstract. In this paper, the variation in forest cover in the central Mediterranean region, reflected by percentage changes of the arboreal pollen record, has been examined in relation to the 4.2 ka BP event. A number of 36 well-dated and detailed pollen records from latitudes between 45° and 36° N were selected and their vegetation dynamics between 5 and 3 ka examined in relation to the physiographic and climatic features of the study area and to the influence of human activity on past vegetation, as suggested by anthropogenic pollen indicators. We have found that the sites located between 43° and 45° N do not show any significant vegetation change in correspondence with the 4.2 ka event. Several sites located in the Italian Peninsula between 39°–43° N show a marked opening of the forest, suggesting that a lowering of rainfall occurred during the 4.2 ka BP event, sufficiently strong to determine a forest decline. Between 36°–39° N, a forest decline is always visible around 4.2 ka BP, and in some cases it is dramatic. This indicates that this region was severely affected by a climate change towards arid conditions that lasted a few hundreds of years and was followed by a recovery of forest vegetation in the middle Bronze age. Human activity, especially intense in southern Italy, may have been favored by this natural opening of vegetation. In Sardinia and Corsica, no clear change in vegetation is observed at the same time. We suggest that during the 4.2 ka BP event southern Italy and Tunisia were under the prevalent influence of a north African climate system, characterized by a persistent high-pressure cell.
A consistent glacier inventory for Karakoram and Pamir derived from Landsat data: distribution of debris cover and mapping challenges
Authors: Mölg Nico , Bolch Tobias , Rastner Philipp , Strozzi Tazio , Paul Frank
Published: October 2018

Abstract. Knowledge about the coverage and characteristics of glaciers in High Mountain
Asia (HMA) is still incomplete and heterogeneous. However, several
applications, such as modelling of past or future glacier development,
run-off, or glacier volume, rely on the existence and accessibility of
complete datasets. In particular, precise outlines of glacier extent are
required to spatially constrain glacier-specific calculations such as length,
area, and volume changes or flow velocities. As a contribution to the
Randolph Glacier Inventory (RGI) and the Global Land Ice Measurements from
Space (GLIMS) glacier database, we have produced a homogeneous inventory of
the Pamir and the Karakoram mountain ranges using 28 Landsat TM and ETM+
scenes acquired around the year 2000. We applied a standardized method of
automated digital glacier mapping and manual correction using coherence
images from the Advanced Land Observing Satellite 1 (ALOS-1) Phased Array
type L-band Synthetic Aperture Radar 1 (PALSAR-1)
as an additional source of information; we then (i) separated the glacier
complexes into individual glaciers using drainage divides derived by
watershed analysis from the ASTER global digital elevation model version 2
(GDEM2) and (ii) separately delineated all debris-covered areas. Assessment
of uncertainties was performed for debris-covered and clean-ice glacier parts
using the buffer method and independent multiple digitizing of three glaciers
representing key challenges such as shadows and debris cover. Indeed, along
with seasonal snow at high elevations, shadow and debris cover represent the
largest uncertainties in our final dataset. In total, we mapped more than
27 800 glaciers >0.02 km2 covering an area of 35 520±1948 km2 and an elevation range from 2260 to 8600 m. Regional median
glacier elevations vary from 4150 m (Pamir Alai) to almost
5400 m (Karakoram), which is largely due to differences in temperature and
precipitation. Supraglacial debris covers an area of 3587±662 km2,
i.e. 10 % of the total glacierized area. Larger glaciers have a higher
share in debris-covered area (up to >20 %), making it an important
factor to be considered in subsequent applications
(https://doi.org/10.1594/PANGAEA.894707).
Comparison of dealiasing schemes in large-eddy simulation of neutrally stratified atmospheric flows
Authors: Margairaz Fabien , Giometto Marco G. , Parlange Marc B. , Calaf Marc
Published: October 2018

Abstract. Aliasing errors arise in the multiplication of partial sums, such as those
encountered when numerically solving the Navier–Stokes equations, and can be
detrimental to the accuracy of a numerical solution. In this work, a
performance and cost analysis is proposed for widely used dealiasing schemes in
large-eddy simulation, focusing on a neutrally stratified, pressure-driven
atmospheric boundary-layer flow. Specifically, the exact 3∕2 rule, the
Fourier truncation method, and a high-order Fourier smoothing method are
intercompared. Tests are performed within a newly developed mixed pseudo-spectral finite differences large-eddy simulation code, parallelized
using a two-dimensional pencil decomposition. A series of simulations are
performed at varying resolution, and key flow statistics are intercompared
among the considered runs and dealiasing schemes. The three dealiasing methods compare well in terms of first- and second-order
statistics for the considered cases, with modest local departures that decrease
as the grid stencil is reduced. Computed velocity spectra using the 3∕2 rule and
the FS method are in good agreement, whereas the FT method yields a spurious energy
redistribution across wavenumbers that compromises both the energy-containing and
inertial sublayer trends. The main advantage of the FS and FT methods when compared to
the 3∕2 rule is a notable reduction in computational cost, with larger savings
as the resolution is increased (15 % for a resolution of 1283, up to a theoretical 30 % for a resolution of
20483).
Vulnerability of tourism development to salt karst hazards along the
Jordanian Dead Sea shore
Authors: Abou Karaki Najib , Fiaschi Simone , Paenen Killian , Al-Awabdeh Mohammad , Closson Damien
Published: October 2018

Abstract. The Dead Sea shore is a unique young and dynamic evaporite karst system. It started developing in the 1960s, when the main water resources that used to feed the terminal lake were diverted towards deserts, cities and industries. The Dead Sea water level started to lower at an accelerating pace, exceeding 1 meter per year during the last decade, causing a hydrostatic disequilibrium between the underground fresh waters and the base level. This battery-like system provides the energy needed for the development of underground cavities, hectometre-size landslides, and vertical erosion of channels during flash-floods. The geological discontinuities are the weakest points where the system can re-balance and where most of the energy is dissipated through erosional processes. Groundwater is moving rapidly along these discontinuities to reach the dropping base level. The salt that soars the sediments matrix is dissolved along the paths favouring the development of enlarged conduits, cavities, and the proliferation of ground collapses (sinkholes). Despite these unfavourable environmental conditions, large touristic projects have flourished along the northern coast of the Jordanian Dead Sea. In this work, thanks to the application of remote sensing techniques combined with repeated field observations, we show that a 10 kilometres-long strip of land along the Dead Sea shore that encompass several touristic infrastructures is exposed to subsidence, sinkholes and landslides. Furthermore, we point out the importance of setting up an early warning system to warn the authorities prior to the triggering of hazardous events, limiting or preventing possible disastrous consequences related to hydrogeological hazards.
Organic carbon content in arable soil – aeration matters
Authors: Colombi Tino , Walder Florian , Büchi Lucie , Sommer Marlies , Liu Kexing , Six Johan , van der Heijden Marcel G. A. , Charles Raphaël , Keller Thomas
Published: October 2018

Abstract. Arable soils may act as a sink in the global carbon cycle but the prediction of their potential for carbon sequestration remains challenging. The role of soil structure and related physical properties for carbon sequestration is only little explored, especially at the farm level. We hypothesized that improved soil aeration, which is strongly controlled by soil structure, leads to higher soil organic carbon content. Soil gas transport properties, water holding capacity, microbial biomass and soil organic carbon content, were quantified in the topsoil and subsoil in 30 fields of individual farms. The fields were managed either conventionally, organically or according to no-till practice. Tillage significantly increased gas transport capability and water holding capacity of the topsoil. In the same soil layer, organic farming resulted in higher soil organic carbon content and microbial biomass. Both in the topsoil and the subsoil higher gas transport capability and water holding capacity led to increased soil organic carbon content (0.53
De la superioridad intelectual a la moral en la Orestía de Esquilo
Authors: Bertolín Cebrián Reyes
Published: October 2018

En el presente artículo se analiza la Orestía de Esquilo desde el punto de vista de cómo la justicia, entendida como superioridad moral, se asocia a la superioridad intelectual y racional. En el mundo clásico las cualidades intelectuales positivas se atribuyen casi exclusivamente a los hombres. Esto es un cambio del mundo homérico, donde la mujer se valoraba también por su inteligencia. Las heroínas de la tragedia clásica son heroínas homéricas que no se acomodan a los ideales clásicos de feminidad. Esta disyunción en la valoración de la mujer deja a los personajes femeninos en desventaja. A través del análisis de pasajes que incluyen verbos de pensamiento y de aprendizaje se puede ver la transición de la mujer homérica a la clásica, que se desarrolla de forma paralela a la transición de la lucha por establecer la superioridad intelectual a la imposición de la revelación del conocimiento.
εἴπερ Ἀθηναῖοι Σμύρναν ἀπῳκίσαμεν: Análisis del Epigrama XI 442 de la Antología Palatina
Authors: Varillas Sánchez Isabel
Published: October 2018

Dentro de la Antología Palatina, el libro XI está compuesto por epigramas burlescos y de tema simpótico, motivo por el que sorprende su cierre, una composición de 6 versos que, aparentemente, ensalza la figura del tirano Pisístrato y su papel en la recopilación y edición de los poemas homéricos. El objetivo de este artículo es analizar detalladamente dicho epigrama con la intención de arrojar algo de luz sobre su datación, fuentes e interpretación intentando determinar si tiene cabida una lectura irónica del mismo como sugiere la crítica moderna
La voz autorial en la "Historia romana" de Apiano
Authors: Rodríguez Horrillo Miguel Ángel
Published: October 2018

Se analizan los pasajes de la Historia romana de Apiano en los que el autor hace empleo de la primera persona con el fin de obtener una imagen precisa de la voz autorial de Apiano. Del examen de estos pasajes en el marco de las peculiaridades estructurales de la obra se concluye que Apiano no emplea prácticamente nunca intervenciones autoriales en primera persona para realizar reflexiones de carácter historiográfico, sino que estas se reservan para las de carácter estructural. Además, la naturaleza de esas reflexiones confirma el diferente carácter de los libros sobre las Guerras civiles, y acentúa el carácter práctico de la obra.
Concentration and periods of application of prohexadione calcium in the growth of strawberry seedlings
Authors: Barreto Caroline Farias , Ferreira Leticia Vanni , Costa Savana Irribarem , Schiavon Andressa Vighi , Becker Tais Barbosa , Vignolo Gerson Kleinick , Antunes Luis Eduardo Correa
Published: October 2018

For strawberry cultivation in Brazil, producers are dependent on imported seedlings. An alternative strategy to reduce this dependence is the use of seedlings obtained from nursery plants grown in a protected environment. However, as these seedlings are produced in the summer and planted at the end of this season or the spring of the following year, it is necessary to control growth to reduce the energy costs of the plants. The objective of this study was to evaluate the effect of different concentrations and periods of application of proexadione calcium (ProCa) on growth control of strawberry seedlings. The experiment was carried out in a greenhouse with seedlings of the cultivars ‘Aromas’ and ‘Camarosa’, produced by rooting stolons and kept in polystyrene trays of 72 cells in a substrate of carbonized rice husk. The experimental design was completely randomized, with a 4 × 2 factorial scheme (4 concentrations of ProCa: 0, 100, 200, and 400 mg L-1 × 2 periods of application: at 20 and 30 days after the planting period of rooting stolon). Plant survival, crown diameter, petiole length, total leaf area, specific leaf area, chlorophyll concentration, and dry mass of the crown and shoot were evaluated. The application of ProCa at 20 days after the planting period of the rooting stolon at the concentrations of 200 and 400 mg L-1 favored the reduction of petiole length in plants of ‘Aromas’ strawberry and total leaf aerial in ‘Camarosa’ strawberry. The application of ProCa from the concentration of 100 mg L-1 reduced the vegetative growth of ‘Aromas’ and ‘Camarosa’ strawberry seedlings cultivated in substrate.
Physical and physicochemical characteristics, bioactive compounds and antioxidant activity of xiquexique (Pilosocereus gounellei (A. Weber ex K. Schum.)) fruit
Authors: Silva Antonia Almeida da , Dantas Renato Lima , Véras Claudiana Dos Santos , Alves Ricardo Elesbão , Silva Silvanda De Melo
Published: October 2018

Many native species from the Cactaceae family with occurrence in northeastern Brazil have been investigated targeting their chemical composition and functional properties as strategy of adding value to these species that are underexploited according to ethnobotanical studies. The xiquexique (Pilosocereus gounellei (A. Weber ex K. Schum.)) is one of these species that adapts in high temperatures and low rainfall environments and some local populations use it for several purposes, including animal feeding and medicinal. However, there is few studies regarding the physical and physicochemical characterization and on the compounds of functional interest in fruits of this species. In the context, the aim of this study was to evaluate the physical and physicochemical characteristics, bioactive compounds and antioxidant activity of the xiquexique fruit from plants occurring in three municipalities of the state of Paraíba, Brazil. The pulp of fruits from the municipalities of Boqueirão and Solânea presented lower acidity content, with higher SS/AT ratio and may be more suitable for fresh consumption. Furthermore, fruits from these municipalities can be also attractive for processing once they had larger sizes. Fruits of xiquexique exhibited high contents of functional compounds such as phenolic and betalains, which provided high antioxidant activity, with potential for adding value.
Seroepidemiological study of maedi-visna in sheep in Ceara, Rio Grande do Norte, Paraíba, and Sergipe States
Authors: Alves Samilly Mesquita , Teixeira Maria Fátima da Silva , Pinheiro Raymundo Rizaldo , Alves Francisco Selmo Fernandes , Lima Ana Milena César , Farias Daniele Alves de , Santos Vanderlan Warlington Souza dos , Azevedo Dalva Alana Aragão de , Martins Gabrielle Rosemblit , Aguiar Tereza D Avila de Freitas
Published: October 2018

The production performance of a livestock herd can be compromised by various diseases. In sheep, maedi-visna (MV) infections, which have a chronic nature, are caused by a virus (maedi-visna virus (MVV)) belonging to the genus Lentivirus of the Retroviridae family. The infection can cause significant economic losses and has considerable health impacts on sheep breeding in production systems. Due to the importance of this disease in sheep flocks, the objective was to conduct a serosurvey of MVV in the states of Ceará (CE), Rio Grande do Norte (RN), Paraíba (PB), and Sergipe (SE). A total of, 3332 serum samples were collected in the four states, 1011 in CE, 931 in RN, 459 in PB, and 931 in SE, with the number of samples proportional to the actual herd size of each state. The samples were analyzed using the agar gel microimmunodiffusion test (AGID). Reproducers were revaluated using western blotting (WB). In addition to this serological survey, we administered an investigative questionnaire to identify possible risk factors that facilitate the introduction and spread of diseases (location, category, sex, breed type, creation system, production, herd size, and association with goats). After analysis of the sera using the AGID test, there was zero prevalence. Revaluating breeders by WB revealed a 5.5% prevalence of MV in the four states studied, with prevalences for the states of CE, RN, Paraiba, and SE of 2.3% (2/88), 10.4% (8/77), 3.6% (1/28), and 4.7% (2/42), respectively, corresponding to 13 breeders containing antibodies to the virus. These findings emphasized that the choice of diagnostic tests is extremely important for the early detection of seropositive animals and thus the prevention of the spread of the virus among herds in the region.
Profile of bovine-milk-producing farms in Rondon do Pará, state of Pará, Brazil
Authors: Soares Bruno Cabral , Lourenço Júnior José De Brito , Santos Marcos Antônio Souza dos , Rodrigues Filho José Adérito , Sena Ana Laura Dos Santos , Santana Antônio Cordeiro de , Homma Alfredo Kingo Oyama , Silva André Guimarães Maciel e
Published: October 2018

This study describes the bovine milk-producing farms of Rondon do Pará, state of Pará, with the aim of assisting institutional actions and public policies that support the development of the milk production chain. The data were collected from interviews, using questionnaires administered in 55 dairy farms, which together represent 43.3% of the herd of milking cows in the municipality. We collected information on producers, characteristics of the milk-producing farms, dairy exploitation, machines and equipment, facilities and improvements, herd health, milking practices, and herd management. The average age of the interviewees in Rondon do Pará was 57.41 years. The producers had low education levels, with a prevalence of incomplete elementary education. Manual milking was used in 98% of the farms. When it came to hygiene practices, less than 2% of the milkers washed their hands before milk collection, and only 10% cleaned the teats of the cows. Animals were fed almost exclusively on pasture in the rainy season, given that only 2% of the producers complemented the diet with forage. Dairy production involved low technological levels, as the mean productivity was 5.5 L cow -1 day -1. The adoption of technological innovations in herd management may enable the growth and development of the activity in the municipality, and may make producers aware of the principles of sustainability.
Can ruminal inoculum from slaughtered cattle replace inoculum from cannulated cattle for feed evaluation research?
Authors: Alba Henry Daniel Ruiz , Oliveira Ronaldo Lopes , Carvalho Silvana Teixeira de , Ítavo Luís Carlos Vinhas , Ribeiro Ossival Lolato , Nascimento Júnior Nilton Guedes do , Freitas Marcondes Dias , Bezerra Leilson Rocha
Published: October 2018

The objective was to test the hypothesis that ruminal inoculum obtained from slaughtered cattle can replace inoculum from cannulated cattle in trials evaluating animal feedstuffs through in vitro gas production and digestibility. Five adult Holstein × Zebu steers with ruminal cannula were used to collect and compare rumen liquid from in vivo and slaughtered animals. In vitro dry matter digestibility (IVDMD), in vitro neutral detergent fiber digestibility (IVNDFD) and ammoniacal nitrogen concentrations did not differ between inoculum sources (slaughtered × cannulated) for all byproducts and levels tested. Total in vitro gas production in the ruminal inoculum of cannulated animals was greater (P < 0.001) than slaughtered cattle for different levels of licuri cake. However, the greatest total concentrations of in vitro gases for slaughtered animals were observed when evaluating different levels of crude glycerin (P < 0.001). No differences were observed for diets containing castor bean meal (P >0.05). Thus, the ruminal inoculum obtained from the ruminal contents of slaughtered cattle can replace the use of fistulated animals and is a viable alternative to digestibility analysis. This approach is ethically more correct because it alleviates the suffering of animals by avoiding an invasive procedure.
Crude glycerin as an alternative to corn as a supplement for beef cattle grazing in pasture during the dry season
Authors: Vito Elias San , Granja-Salcedo Yury Tatiana , Lage Josiane Fonseca , Oliveira André Soarez , Gionbelli Mateus Pies , Messana Juliana Duarte , Dallantonia Erick Escobar , Reis Ricardo Andrade , Berchielli Telma Teresinha
Published: October 2018

Two experiments were conducted to evaluate the effects of inclusion of crude glycerin (CG) in the supplement (0, 70, 140, 210, and 280 g kg-1 dry matter (DM) of supplement) of Nellore cattle grazing tropical grasses during dry season. In Experiment 1, intake, digestibility, ruminal fermentation, and the rumen microbial profile were evaluated in two simultaneous 5 × 5 Latin squares, using 10 ruminally cannulated Nellore steers (408.8 ± 38.5 kg of body weight (BW)). In Experiment 2, cattle growth performance was evaluated in 50 young Nellore bulls (279.52 ± 16.3 kg of BW) distributed in a randomized complete block design. The increasing inclusion of CG did not affect intake ( P= 0.813), diet digestibility (P = 0.895), however linearly increased pH (P = 0.001), butyrate concentration (P < 0.001) and Fibrobacter succinogenes (P = 0.003) population. CG inclusion linearly decreased total ruminal volatile fatty acids (VFA) (P < 0.001), acetate concentration (P < 0.001) and quadratically affected (P = 0.009) acetate: propionate ratio. In experiment 2, the inclusion of CG quadratically affected DM intake (DMI) (P = 0.005), DM total-tract apparent digestibility (P < 0.001), linearly increased additional gain (P > 0.001), average daily gain (P > 0.001) and feed efficiency (P > 0.001). CG in the supplement of Nellore steers grazing tropical grass during dry season doesn’t affect intake and digestibility but alters ruminal fermentation, without negative effect on relative proportion of cellulolytic bacteria population. The increasing replacement of corn grain by CG in the supplement of pasture-raised growing Nellore bulls (up to 280g/kg DM) improved BW gain and consequently feed efficiency.
Histopathological findings and immunohistochemical staining of Neospora caninum infection in placentas of animals for slaughter
Authors: Barros Allana Freitas , Silva Higor Ferreira , Oliveira Renata Mondêgo de , Martins Nathálya Dos Santos , Torres Mylena Andréa Oliveira , Andrade Fábio Henrique Evangelista de , Penha Tatiane Aranha da , Rocha Alessandra Lima , Melo Solange De Araujo , Abreu-Silva Ana Lúcia
Published: October 2018

Bovine neosporosis is a parasitic disease caused by the protozoan Neospora caninum, which is one of the main pathogens that cause abortions in cattle worldwide. It is responsible for large losses in dairy and beef cattle, especially with regard to the expenses associated with decreased productivity and increased discard. In the State of Maranhão, the occurrence of this parasite has already been confirmed in the dairy cattle of three microregions that make up the state’s dairy industry and in small ruminants of the municipalities of Amarante do Maranhão and Buritirana. This fact justifies the importance of determining the presence of N. caninum in cattle slaughtered in the slaughterhouses of the Island of São Luís, to help control the parasitic cycle in the cattle production system of the region under study, and the importance of its diagnosis. The objective of the research was to conduct a histopathological and immunohistochemical characterization of bovine placentas infected with N. caninum collected in slaughterhouses. Sixteen placenta samples from cows were randomly selected at the slaughterhouses of the city of São Luís for histological analysis and immunohistochemistry. Results showed that 31% of the placentas presented histopathological changes such as: inflammatory process, edema, hemorrhage and presence of hemosiderin. All slides with histopathological changes showed immunolabeling for N. caninum.
Análise gráfica dos cartazes do Vestibular da UEL do período de 2003 a 2016
Authors: Garcia Fátima Regina , Gomes Rogério Zanetti
Published: October 2018

Este artigo apresenta uma análise da composição visual dos cartazes do vestibular da Universidade Estadual de Londrina. Considerou as peças desenvolvidas pelos alunos do curso de Design Gráfico da mesma instituição, com o objetivo de ressaltar a importância do conhecimento e domínio dos fundamentos básicos do Design para a construção de mensagens visuais e identificar elementos pregnantes para o fortalecimento da identidade visual da Universidade. Utilizou como diretriz os fundamentos do Design elencados por Lupton (2014). Buscou compreender a importância desta iniciativa para o desenvolvimento profissional e acadêmico dos participantes e registrar o acervo considerando sua devida importância histórica para o design regional.
Reflexões e inquietudes sobre design: aspectos da linguagem e da pedagogia do Desenho Industrial
Authors: Silva Danilo Emmerson Nascimento
Published: October 2018

O desenho industrial – design – brasileiro completou meio século de existência. Durante este período sofreu transformações como qualquer fenômeno social: ampliou suas fronteiras; expandiu seus mercados; desenvolveu-se pedagogicamente; assumiu novas responsabilidades; adotou novas denominações; adaptou métodos exógenos à sua realidade. Enfim, amadureceu enquanto área do conhecimento e profissão. Entretanto, algumas questões da linguagem e da pedagogia precisam ser repensadas e revistas com maior profundidade.
Diálogos interdisciplinares e experiências projetuais
Authors: Lehmkuhl Luciene , Pereira Leandro Lopes
Published: October 2018

Este texto propõe discutir questões teórico/metodológicas concernentes à projetação em Design, com o aporte da Estética e do Design Thinking, buscando relatar experiência interdisciplinar envolvendo as disciplinas Projeto de Produto 1 e Estética no Curso de Design da Universidade Federal da Paraíba. A opção pelo diálogo interdisciplinar nos leva a refletir acerca das relações entre designers, produtos e seus usuários. Dos resultados, foi possível observar que a tarefa de estimular jovens estudantes a fazerem uso consciente da função estética dos produtos no ato de projetação, obteve êxito e gerou novas iniciativas.
Raízes culturais paranaenses no design de moda: o processo criativo no desenvolvimento de estampas
Authors: Rezende Isabela Yankous Vale Santos , Hatadani Paula Da Silva , Fornasier Cleuza Bittencourt Ribas
Published: October 2018

O objetivo deste artigo é apresentar o processo de desenvolvimento de estampas em produtos de moda, executado em um Trabalho de Conclusão de Curso, que teve como tema o resgate das raízes culturais do Paraná. Sendo voltado ao público feminino de 20 a 25 anos, estes artigos de vestuário possuíram uma linguagem estética própria do Estado. Para tanto, foram realizados levantamentos bibliográficos e pesquisas descritivas, por meio de questionários e entrevistas com o público, resultando na criação de quatro estampas.
The Effects of Corrective Feedback Strategies on English Majors’ Writing
Authors: Chen Wenling
Published: October 2018

The present study, through sample analysis and questionnaires, investigates the effects of different types of corrective feedback in 250 essays of the first-year English major students and the students’ responses to different feedback strategies. The study shows that 1) the students can improve their writing with the help of the feedback and that different types of errors in the English majors’ writing require different feedback strategies; 2) indirect feedback (coded feedback and uncoded feedback) can be mainly used, supplemented by direct correction; and 3) the English majors highly appreciate the teacher’s feedback; their preference is coded feedback, followed by direct correction and uncoded feedback This study sheds light on how different feedback strategies can be used in teaching L2 English at the university level.
Industrial Upgrading Effect of OFDI of Sichuan Province of China
Authors: Wang Xiaohui
Published: October 2018

Despite the upgrading of industrial structure is not the direct purpose of OFDI, the experience of many countries shows that there is a connection between them. Through the method of fixed effect and SGMM, this paper aims to estimate and analysis the industrial upgrading effect of OFDI of Sichuan province of China, using the panel data of 31 districts of China from 2003 to 2016. From the empirical results we come to the conclusion that OFDI can promote the optimization and upgrading of industrial structure in China and in Sichuan province. For every 1% increase in OFDI, China’s industrial structure index rose 0.00182% and Sichuan’s industrial structure index rose 0.0237%.
The Impact of Fiscal Policy on the Economic Growth of Jordan
Authors: Al-Masaeed Abdullah Ali , Tsaregorodtsev Evgeny
Published: October 2018

The present study examined the impact of fiscal policy measured by (Government expenditure, Government revenues, internal public debt, external public debt) in addition to exports and inflation factors on the Jordanian GDP growth for the period 1990-2010. The study used multiple linear regression and least squares method (OLS) to test the study hypotheses. The study found that government expenditure, exports and government revenues has a positive and significant impact on the Jordanian GDP growth, and negative and significant impact on the Jordanian GDP growth. The study found that external public debt has a negative but not significant impact on the Jordanian GDP growth.
De betekenis van de Algemene wet bestuursrecht voor Curaçao
Authors: Rogier L.J.J.
Published: October 2018

De betekenis van de Algemene wet bestuursrecht voor Curaçao

In deze bijdrage staat de auteur stil bij het belang van de Nederlandse Algemene wet bestuursrecht (Awb) voor de rechtspraktijk in Curaçao. Met de Awb wordt nader betekenis gegeven aan bestuursrechtelijke regels die in Curaçao niet zijn opgeschreven of veel minder zijn uitgewerkt. De vragen die rijzen zijn of dat wel altijd kan en zo ja, aan welke grenzen het overnemen of analoog toepassen van regels uit de Awb in Curaçao dan is gebonden.
‘Rechtstaal’ en recht doen aan taal
Authors: Klik P.
Published: October 2018

‘Rechtstaal’ en recht doen aan taal

In deze bijdrage staat de rol van taal in het rechtsproces centraal.
De ontwikkeling van de Wet Damocles: burgemeesters trekken zwaard in de strijd tegen drugs
Authors: Bruijn L.M.
Published: October 2018

De ontwikkeling van de Wet Damocles: burgemeesters trekken zwaard in de strijd tegen drugs

Op grond van artikel 13b Opiumwet sluiten burgemeesters elk jaar honderden panden vanwege drugshandel en hennepteelt. Dit artikel geeft een zo volledig mogelijk overzicht van de ontwikkeling, uitleg en toepassing van deze sluitingsbevoegdheid. Allereerst wordt onderzocht hoe vaak de bevoegdheid wordt toegepast. Daarna vindt een kwantitatieve jurisprudentieanalyse plaats, waarbij o.a. wordt gekeken naar de winkans van belanghebbenden. Deze resultaten worden vervolgens verklaard aan de hand van een meer kwalitatieve jurisprudentieanalyse. Door gebruik van verschillende onderzoeksmethoden en de uitvoerige jurisprudentiebespreking levert dit onderzoek een wetenschappelijke bijdrage aan de discussie over de toepassing en uitbreiding van artikel 13b Opiumwet.
De algoritmische waakhond
Authors: Sviták Jan , Brouwer Erik
Published: October 2018

De algoritmische waakhond. Datagedreven mededingingstoezicht

In dit artikel gaan wij in op de vraag hoe een mededingingsautoriteit datagedreven technieken kan inzetten om effectiever te worden. Machine learning is in de laatste jaren enorm populair geworden, levert vaak snel goede resultaten op en vormt de basis voor succes van vele e-commerce-bedrijven die (bijna) dagelijks machine learning-algoritmes toepassen om de optimale prijzen te bepalen van al hun producten, gegeven historische transacties die concurrenten aanbieden en gelet op de omvang van de eigen voorraad. Machine learning is echter alleen geschikt voor specifieke vraagstukken. Het verschil tussen causaliteit en voorspelkracht speelt daarbij een belangrijke rol. Vaak past een ‘ouderwetse’ statistische analyse beter bij de onderzoeksvraag over oorzaak en gevolg. Voorbeelden van nuttige toepassingen van machine learning-technieken zijn voorspellingsmodellen en verkennende data-analyse, die op nieuwe inzichten kan wijzen of bepaalde gebeurtenissen kan signaleren. Wij bespreken een simpel algoritme toegepast op detectie van veranderingen in prijsdata en laten zien hoe dit tijdrovende handmatige analyses kan vervangen. Een mededingingsautoriteit kan soortgelijke algoritmes als een belangrijke en noodzakelijke aanvulling gebruiken op de ‘ouderwetse’ maar eveneens nuttige statistische analyses voor o.a. opsporing van kartels. De methode is flexibel qua inzet in verschillende markten en toepassingen van diverse aannames over het gedrag van ondernemingen.
Opzet van een datavoorzieningsfunctie ter ondersteuning van datagedreven toezicht
Authors: van Aerle Wouter , Damhof Ronald , Ouddeken Frank
Published: October 2018

Opzet van een datavoorzieningsfunctie ter ondersteuning van datagedreven toezicht

Toezichthouders hebben te maken met een steeds grotere stroom aan data. Dit vraagt om toenemende discipline in de verwerking ervan. Uit de principes van goed toezicht volgen niet-functionele eisen – als traceerbaarheid, uitwisselbaarheid en betrouwbaarheid – waaraan de gegevensverwerking moet voldoen. Voor het realiseren hiervan is een datavoorzieningsfunctie nodig, vergelijkbaar met andere bedrijfsfuncties als Finance en HR. Binnen DNB is het datakwadrantenmodel gebruikt om deze realisatie vorm te geven. Het model is een begripsvormend kader, dat de gegevensverwerking vanuit twee perspectieven beschouwt: de aanbod- en vraagzijde van gegevens en een opportunistische versus een systematische manier van werken. Op basis van het model zijn keuzes gemaakt ten aanzien van de technische voortbrenging van data, inrichting van de organisatie, besturing en benodigde kennis en competenties.
Tectonophysical approach to the analysis of geological and geophysical data on gas-condensate deposits with the complex platform cover
Authors: Seminsky K. Zh. , Sankov V. A. , Ogibenin V. V. , Burzunova Yu. P. , Miroshnichenko A. I. , Gorbunova E. A. , Gorlov I. V. , Smirnov A. S. , Vakhromeev A. G. , Buddo I. V.
Published: October 2018

The article presents the results of the tectonophysical approach to the analysis of stress fields and the structure of gas–condensate deposits with the complex platform cover. The discussed case is the Kovykta license area (LA) in Eastern Siberia, Russia. In the upper part of the cross section, the network of fault zones was identified from the relief lineaments and structural data. The dynamic conditions for faulting (compression, extension, and strike-slip) were reconstructed by the paragenetic analysis. The state of crustal stresses in the study area was studied by tectonophysical modeling using gelatin as an optically active material. The applied method was successful in distinguishing between the zones of faults in the platform cover, which differ in the degree of their activity in the specified stress fields. The lower part of the cross section in the NE segment of the Kovykta LA is considered as an example of the tectonophysical interpretation of the electrical and seismic survey data in order to identify the fault zones and reconstruct the corresponding stress fields. Based on the synthesis of the analyzed data, it is revealed that the deposits like the Kovykta gas condensate field (GCF) show the zone-block structure of the platform cover formed under the influence of several stress fields closely associated with the stages of tectogenesis in the adjacent mobile belts. The next objective is to enhance the tectonophysical approach in order to develop a hierarchical model of the GCF zone-block structure, which details need to be known for improving the prediction of sites with the complicated stress-strain state of rocks and mitigating the risks associated with drilling exploration and production wells.
Physical modeling experiments to study periodic activation of faults in seismic zones
Authors: Bornyakov S. A. , Panteleev I. A. , Cheremnykh A. V. , Karimova A. A.
Published: October 2018

Our study aimed to find a mechanism that controls preparation and subsequent full seismic activation of large faults that may act as sources of strong earthquakes. A large fault was physically modeled to investigate the dynamics of its deformation. The experiments were conducted on elastoviscoplastic and elastic models of the lithosphere. A digital camera was used to capture images in the course of the modeling experiments. The digital image correlation method (DIC) detected the moments of impulse activation and displacements along the entire fault or its major segment. Between the activation moments, the fault structure consists of segments, including active ones. Activation is directional and involves a few large segments of the fault, then numerous small ruptures, and the latter are gradually degenerating. The long-term deformation dynamics of the fault is represented by a regular sequence of its full activations. In most cases, each moment of activation correlates with a minimum dip angle of the repeatability curve (β) and a maximum value of information entropy (Si). We analysed in detail the deformation dynamics of the fault and in its wings between two full activation that occurred in a regular pattern, including the phases of regression and progression of the deformation process. The analysis revealed two similar scenarios in the evolution of the active segments and plastic micro slip faults within the active segments. In some intervals of time, deformation takes place considerably differently on the segments and the plastic micro slip faults. Such differences suggest that in the studies attempting to statistically predict and assess a large and potentially seismically hazardous fault zone, this zone should be considered spatially subdivided into a central narrow subzone (including the main fault plane) and two wide subzones framing the fault wings. According to our physical modeling results, the central subzone can be up to10 km wide, and the total width of all the subzones can amount to100 km or more. This study contributes to the development of the concepts of geodynamics of large faults in the seismic zones of the lithosphere and investigates one of the possible mechanisms preparing strong earthquakes in the seismic zones.
Slow deformation fronts: model and features of distribution
Authors: Makarov P. V. , Khon Yu. A. , Peryshkin A. Yu.
Published: October 2018

Our study aimed at investigating the origin and development of ‘slow’ movements in a solid body/medium under loading and studying the role of such movements in the occurrence of critical states, i.e. sources of destruction in a stable solid medium. Computerized modeling was conducted to simulate the evolution of the stress-strain state and the formation of slow deformation waves in a loaded medium. We have developed and justified a mathematical model of the loaded elastoplastic medium, which demonstrates the joint generation and propagation of ordinary stress waves (propagating with the velocity of sound) and slow deformation waves of the inelastic nature. The propagation rates of the latter are 5–7 orders of magnitude lower than the velocity of sound. The features of slow deformation wave propagation in the solid media are investigated. In the model, slow deformation waves interact under certain conditions as solitons and penetrate each other. Considering the properties, they are similar to both solitons satisfying the solutions of the non-linear Korteweg – de Vries equation and kinks satisfying the solutions of the sin-Gordon equation. Slow deformation fronts are actively involved into the formation of sources of destruction and provide an effective mechanism for the transfer and redistribution of energy in the loaded medium.