bluuebunny/crossref_metadata_2025 huggingface dataset:
La motivación y los métodos de evaluación como variables fundamentales para estimular el aprendizaje autónomo
Authors: Álvarez Álvarez Begoña , González Mieres Celina , García Rodríguez Nuria
Published: January 2019

Ante la presencia de unas condiciones del entorno que obligan al cambio, Espacio Europeo de Educación Superior, se considera la necesidad de realizar modificaciones en el método docente. Si a este hecho se le añade la falta de motivación del alumnado, la necesidad de transformar la rutina docente parece más que justificada.

Ambas circunstancias han sido determinantes para el desarrollo y la puesta en marcha del proyecto de innovación docente que se presenta. El mismo se traduce en una serie de modificaciones relacionadas con la motivación y la evaluación. Con respecto a la motivación se ha establecido una forma autónoma o más independiente de trabajo así como la necesidad de un esfuerzo continuado a lo largo de todo el curso. En cuanto al método de evaluación se propone un sistema mixto que incentive al alumnado en su aprendizaje autónomo. Dicho proyecto se ha llevado a cabo en una asignatura de la Diplomatura de Ciencias Empresariales.
Desarrollo de las competencias “preocupación por la calidad” y “motivación de logro” desde la docencia universitaria
Authors: Lucas Mangas Susana
Published: January 2019

Entre las Competencias Genéricas seleccionadas por el Proyecto Tuning (González y Wagenaar, 2003), se encuentran la “preocupación por la calidad” y la “motivación de logro”, a desarrollar desde la función docente universitaria. Desde una perspectiva psicosocial de la educación, se persigue la adquisición del conocimiento de conceptos, valores-metas, actitudes y procedimientos que lo facilitan. En coherencia, se revisan algunas estrategias de motivación que se han mostrado eficaces en entornos socio-educativos y laborales (explicitación, planificación y administración de objetivos; enriquecimiento de tareas en el diseño de trabajos con mayor variedad de contenidos, tanto en cuanto a su amplitud como en sus exigencias; programas de refuerzo a través de la evaluación de las competencias y de clarificación de valores-metas). El desarrollo de estas competencias requiere de la contribución de las demás competencias genéricas.
La evaluación en el marco del EEES: El uso del portfolio en Filología Inglesa
Authors: Martínez Lirola María , Crespo Fernandez Eliecer
Published: January 2019

El conjunto de cambios y adaptaciones que conlleva el Espacio Europeo de Educación Superior (EEES) en la función docente del profesorado universitario supone una profunda revisión del proceso de evaluación, que se antoja como marco dinamizador del proceso de enseñanza-aprendizaje en su conjunto. Desde este punto de vista, el presente artículo ofrece una propuesta de evaluación dentro del modelo propuesto por la Convergencia Europea en una asignatura troncal con un elevado número de alumnos matriculados en la titulación de Filología Inglesa. Para tal fin, hemos modificado sustancialmente las técnicas de evaluación tradicionales y nos hemos basado en el uso del portfolio como método que aúna los principios básicos del nuevo modelo docente.
Photolytically-Generated Sulfuric Acid and Particle Formation: Dependence on Precursor Species
Authors: Hanson David R. , Abdullahi Hussein , Menheer Seakh , Vences Joaquin , Alves Michael R. , Kunz Joan
Published: January 2019

Abstract. Size distributions of particles formed from sulfuric acid (H2SO4) and water vapor in a Photolytic Flow Reactor (PhoFR) were measured with a nano-particle mobility sizing system. Experiments with added ammonia and dimethylamine were also performed. H2SO4(g) was synthesized from HONO, sulfur dioxide, and water vapor, initiating OH oxidation by HONO photolysis. For standard reactant flows and conditions, 296 K, 52 % relative humidity, and a ~ 40 s residence time, the calculated concentration of H2SO4 peaked at 1.2 × 1010 cm−3, measured particle mean diameter was ~ 6 nm and total number density was ~ 104 cm−3. Measured distributions were influenced by molecular clusters at small sizes, less than or equal to 2 nm diameter, but were generally dominated by large particles that are roughly log-normal with mean diameters ranging up to 12 nm and a relatively constant lnσ of ~ 0.3. Particle number density and their mean size depended on relative humidity, HONO concentration, illumination, and SO2 level. Particle formation conditions were stable over many months. Addition of single-digit pmol/mol mixing ratios of dimethylamine led to very large increases in number density. Ammonia at levels up to 2000 pmol/mol showed that NH3 is less effective than dimethylamine at producing particles. A two-dimensional simulation of PhoFR reveals that H2SO4 scales with HONO and its level builds along the length of the flow reactor. Experimentally, particle growth scaled with HONO, in accord with model-predicted H2SO4 levels. Additional comparison between experiment and model indicates that reaction of HO2 with SO2 could be a significant source of H2SO4 in this experiment. The effects of potential contaminants on particle formation rates near room temperature are addressed and provide context in comparisons with previous experiments. The added-base experimental results provide support for previously published dimethylamine-H2SO4 cluster thermodynamics but do not support previously published ammonia-sulfuric acid thermodynamics.
Peroxy Radical Measurements by Ethane – Nitric Oxide Chemical
Amplification and Laser-Induced Fluorescence/Fluorescence Assay
by Gas Expansion during the IRRONIC field campaign in a Forest
in Indiana
Authors: Kundu Shuvashish , Deming Benjamin L. , Lew Michelle M. , Bottorff Brandon P. , Rickly Pamela , Stevens Philip S. , Dusanter Sebastien , Sklaveniti Sofia , Leonardis Thierry , Locoge Nadine , Wood Ezra C.
Published: January 2019

Abstract. Peroxy radicals were measured in a mixed deciduous forest atmosphere in Bloomington, Indiana, USA, during the Indiana Radical, Reactivity and Ozone Production Intercomparison (IRRONIC) during the summer of 2015. Total peroxy radicals ([XO2] ≡ [HO2] + Ʃ[RO2]) were measured by a newly developed technique involving nitric oxide (NO) – ethane (C2H6) chemical amplification followed by NO2 detection by cavity attenuated phase shift spectroscopy (hereinafter referred to as ECHAMP). The sum of hydroperoxy radicals (HO2) and a portion of organic peroxy radicals ([HO2*] = [HO2] + Ʃαi[RiO2], 0
Evaluating biases in filter-based aerosol absorption measurements
using photoacoustic spectroscopy
Authors: Davies Nicholas W. , Fox Cathryn , Szpek Kate , Cotterell Michael I. , Taylor Jonathan W. , Allan James D. , Williams Paul I. , Trembath Jamie , Haywood Jim M. , Langridge Justin M.
Published: January 2019

Abstract. Biases in absorption coefficients measured using a filter-based absorption photometer (Tricolor Absorption Photometer, or TAP) at wavelengths of 467, 528 and 652 nm are evaluated by comparing to measurements made using photoacoustic spectroscopy (PAS). We report comparisons for ambient sampling covering a range of aerosol types including urban, fresh biomass burning and aged biomass burning. Data are also used to evaluate the performance of three different TAP correction schemes. We found that photoacoustic and filter-based measurements were well correlated, but filter-based measurements generally overestimated absorption by up to 45 %. Biases varied with wavelength and depended on the correction scheme applied. Optimal agreement to PAS data was achieved by processing the filter-based measurements using the recently developed correction scheme of Müller et al. (2014), which consistently reduced biases to 0–17 % at all wavelengths. The biases were found to be a function of the ratio of organic aerosol mass to light-absorbing carbon mass although applying the Müller et al. (2014) correction scheme to filter-based absorption measurements reduced the biases and the strength of this correlation significantly. Filter-based absorption measurement biases led to aerosol single-scattering albedos that were biased low by up to 0.07 and absorption Ångström exponents (AAE) that were in error by ±0.54. The discrepancy between the filter-based and PAS absorption measurements is lower than reported in some earlier studies, and points to a strong dependence of filter-based measurement accuracy on aerosol source type.
Climate projections of a multi-variate heat stress index: the role of downscaling and bias correction
Authors: Casanueva Ana , Kotlarski Sven , Herrera Sixto , Fischer Andreas M. , Kjellstrom Tord , Schwierz Cornelia
Published: January 2019

Abstract. Along with the higher demand of bias-corrected data for climate impact studies, the number of available data sets has largely increased in the recent years. For instance, the Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) constitutes a framework for consistently projecting the impacts of climate change across affected sectors and spatial scales. These data are very attractive for any impact application since they offer worldwide bias-corrected data based on Global Climate Models (GCMs). Complementary, the CORDEX initiative has incorporated experiments based on regionally-downscaled bias-corrected data by means of debiasing and quantile mapping (QM) methods. In light of this situation, it is challenging to distil the most accurate and useful information for climate services, but at the same time it creates a perfect framework for intercomparison and sensitivity analyses. In the present study, the trend-preserving ISIMIP method and empirical QM are applied to climate model simulations that were carried out at different spatial resolutions (CMIP5 GCM and EURO-CORDEX Regional Climate Models (RCMs), at approximately 150 km, 50 km and 12 km horizontal resolution, respectively) in order to assess the role of downscaling and bias correction in a multi-variate framework. The analysis is carried out for the wet bulb globe temperature (WBGT), a heat stress index that is commonly used in the context of working people and labour productivity. WBGT for shaded conditions depends on air temperature and dew point temperature, which in this work are individually bias-corrected prior to the index calculation. Our results show that the added value of RCMs with respect to the driving GCM is limited after bias correction. The two bias correction methods are able to adjust the central part of the WBGT distribution, but some added value of QM is found in WBGT percentiles and in the intervariable relationships. The evaluation in present climate of such multivariate indices should be performed with caution since biases in the individual variables might compensate, thus leading to better performance for the wrong reason. Climate change projections of WBGT reveal a larger increase of summer mean heat stress for the GCM than for the RCMs, related to the well-known reduced summer warming of the EURO-CORDEX RCMs. These differences are lowered after QM, since this bias correction method modifies the change signals and brings the results for GCM and RCMs closer to each other. We also highlight the need of large ensembles of simulations to assess the feasibility of the derived projections.
El nivel de internacionalización de los Grados en Información y Documentación de las universidades españolas : análisis del idioma usado en la bibliografía de sus planes docentes
Authors: Guisado González Laura , Faba-Pérez Cristina
Published: January 2019

Para afrontar el reto planteado a la educación superior en la actualidad es imprescindible el conocimiento de distintas lenguas. Dicho conocimiento puede ser incentivado desde la Universidad a través de diversos mecanismos como la movilidad, la formación reglada en idiomas, o la adquisición de la competencia transversal “conocimiento de una lengua extranjera” usando técnicas diversas, como la consulta de referencias bibliográficas en lenguas extranjeras. Es precisamente este último, el principal componente analizado en el presente trabajo, que investiga la internacionalización de los estudios de Grado en Información y Documentación a través del análisis cuantitativo del uso de lenguas extranjeras en las referencias bibliográficas de los planes docentes de los Títulos de Grado en Información y Documentación impartidos por las universidades españolas. Para ello, se analiza un número final de 454 planes docentes con un total de 6924 referencias bibliográficas. Los resultados muestran una baja proporción de referencias en idiomas distintos al castellano, siendo la lengua inglesa la más utilizada de las extranjeras y aumentando dicha proporción en los últimos cursos de los Grados, los más próximos a la incorporación de los egresados al mercado laboral internacional.
Segmentación de vídeos informativos en televisión : de la práctica profesional a la identificación automática
Authors: Caldera-Serrano Jorge , Caro-Castro Carmen
Published: January 2019

Se analizan las diferentes maneras en el que el documentalista realiza la segmentación del vídeo para así identificar la unidad discursiva mínima de análisis en los departamentos de documentación de las cadenas televisiva. De forma paralela, y atendiendo al cambio de paradigma digital en la producción en televisión, se analizan las principales fórmulas de segmentación automática de vídeo desarrolladas por medio de la inteligencia artificial. Una vez determinada ambas realidades se intenta implementar el mejor método de segmentación entre lo humano y lo automático, para que tenga su utilidad en los sistemas de información documental de las televisiones. Para ello se ofrecen las principales líneas de trabajo en segmentación semántica de vídeo.
PARTv: guía metodológica para diagnosticar la participación en la producción televisiva.
Authors: Hernández Alfonso Eduardo Alejandro , Paz Enrique Luis Ernesto , Alonso Freire Joaquín
Published: January 2019

La televisión local es un medio de comunicación cercano a sus audiencias. Las políticas que rigen las programaciones de dichos canales deben potenciar la participación de los públicos. Se plantean como objetivos de esta investigación: 1) establecer una guía metodológica para diagnosticar la participación de los sujetos que intervienen en la producción televisiva local, 2) diagnosticar la participación de los sujetos que intervienen en la producción televisiva del canal local Centro Norte Televisión, Caibarién, Cuba. El estudio que se presenta clasifica como descriptivo con carácter teórico. Se emplearon en el nivel teórico los métodos: analítico-sintético, sistémico-estructural, histórico-lógico, inductivo deductivo. En el nivel empírico se utilizó la observación, el análisis documental clásico, el método estadístico-matemático, la encuesta y la triangulación de información. Las técnicas empleadas para la recogida y representación de los resultados fueron la revisión de documentos, el cuestionario y el análisis de redes sociales. Se diseñó una metodología para diagnosticar la participación en las televisoras locales. Se validó la metodología diseñada a través de un estudio de caso. El diagnóstico de la participación arrojó que existe una tendencia a reproducir el esquema unidireccional del modelo clásico de comunicación (Emisor-Receptor). Se reconoce por parte de Centro Norte Televisión que sus públicos ostentan un papel activo en la producción televisiva pero no se distinguen claramente en los documentos consultados y en la práctica social descrita. Las expresiones de participación identificadas limitan la creatividad de los sujetos en la producción televisiva, porque no reconoce funciones ajenas a las instituidas para cada rol.
Interdependence of Museums and Tourism Industry in Jordan
Authors: Khasawneh Nermeen
Published: January 2019

Museums are educational, cultural and recreational centers; cares for objects of scientific, artistic, cultural, or historical value and other artifacts linked to the cultural and popular heritage of particular people, exhibiting and preserving these collections for subsequent generations. Heritage is the basis of civilization as it represents the nation's memory and a bridge linking its authenticity with its present and future as well as the foundations of its representation and identity. The aims of this retrospective study are to review the consistence and historical development of the Jordanian museums and to evaluate its current status, its contribution in sustainable tourism industry and to adjoin a new contribution to the current knowledge in this field. This study based on two approaches; the first was conducted on the numbers of visitors to five selected museums in Jordan for the years 2016-2017, taking into account the residence variable. The second approach used a sort specially designed questionnaires, written in Arabic and English languages were given non- selectively to (120) visitors, designed to determine the role of museums in supporting tourism in Jordan. Data were collected and a descriptive analysis was performed. The findings of this study revealed that museums play a prominent role in supporting the tourism industry through its active educational and recreational activities (94.33%), supporting domestic tourism (92.67%), and promote loyalty and national identity (92.33%). Our study confirmed the vital role of museums in the tourism industry, which in turn provides a fundamental tributary to the Jordanian Gross Domestic Product. The diversified Jordanian museums with its authentic holdings, in addition to the unique tourist destinations call for immediate support to boost Jordanian tourism globally.
“No man shall suffer for the murder of a Savage”: The Augusta Boys and the Virginia and Pennsylvania Frontiers
Authors: Donis Jay
Published: January 2019

In the mid- to late 1760s, a series of murders perpetrated by Anglo-Americans against Native Americans occurred in the colonial backcountry. Although not unusual events in this region, the attempted prosecution of the murderers resulted in tension between Anglo-Americans who desired punishment and those who rejected punishment for killing an Indian. Those opposing stances reveal a larger battle over different understandings of English constitutionalism and frontier societies' use of rights. What is unusual historiographically is that these murders and the subsequent contestation of authority between frontiersmen and government transpired in Virginia. By examining these understudied events, this article reconsiders the depiction of inter-Anglo-Virginian society as tranquil, connects the Virginia backcountry to similar events in Pennsylvania, and credits frontiersmen with the political knowledge and sophistication usually reserved for Anglo-Americans who lived in coastal, urban settlements.
The Philadelphia Riots of 1844: Republican Catholicism and Irish Catholic Apologetics
Authors: Morgan Anne
Published: January 2019

This article analyzes the development of a distinctly American Catholic identity among Philadelphia's Catholics in the wake of the 1844 Philadelphia riots. It offers a critique of historians' theses that by the nineteenth century a largely immigrant Catholic population had rejected the Revolutionary-era synthesis between republicanism and Catholicism. The ideological battle following the riots reveals the ways in which Philadelphia's Catholics challenged their nativist opponents by utilizing republican rhetoric. Catholics' republicanism was much more liberal than nativists' classical republicanism; as such, they emphasized the protection of minority rights and the separation of church and state.
Lasers in Spine Surgery
Authors: Radcliff Kris , Vaccaro Alexander R. , Hilibrand Alan , Schroeder Gregory D.
Published: January 2019

Laser spine surgery has been a focus of intense interest in the lay press and among patients. On the Internet, a host of purported benefits to laser surgery exists. Lasers have long been used in pain management procedures such as percutaneous diskectomy. However, a few published articles are available on lasers in conventional spine surgery. From our review of the literature, the purported advantages of lasers, such as reduced inflammation and degeneration, are not been supported by preclinical research. The available clinical studies do not show a notable advantage for laser surgery. Moreover, the low enrollment, nonblinded, retrospective studies that are available are heavily subject to bias. The documented advantages of laser spine surgery described in the research studies are not consistent with the public's impression of its purported benefits. Furthermore, laser-specific complications are present about which patients should be informed. On the basis of the current research, we conclude that lasers add distinct potential complications without any corresponding clinical benefit. Because of the public interest, we feel that this is an important topic for the general orthopaedic community.
Terytorialny system zabezpieczenia logistycznego w realizacji wsparcia
operacji wojskowych prowadzonych na terenie kraju
Authors: Zadorożny ppłk dr inż Krzysztof
Published: January 2019

Zadania sił zbrojnych i realia gospodarki rynkowej stały się powodem zmian w organizacji systemu logistycznego Sił Zbrojnych RP. Powstały nowe ogniwa logistyki
wykonawczej – wojskowe oddziały gospodarcze, których zadaniem jest zabezpieczenie funkcjonowania wojsk przebywających stale lub czasowo w ich rejonach odpowiedzialności. Celem artykułu było wskazanie możliwości wsparcia wojsk biorących
udział w operacjach prowadzonych na terenie kraju przez terytorialny system zabezpieczenia logistycznego. Przeprowadzone analizy wskazują, że o powodzeniu zabezpieczenia logistycznego decyduje wiele czynników, które z jednej strony określają
potrzeby (m.in. charakter i rozmiar operacji oraz ilość jej uczestników), a z drugiej
wskazują możliwości (takie jak posiadany wojskowy potencjał logistyczny, wsparty
infrastrukturą cywilną w rejonie operacji oraz możliwe do wykorzystania zasoby logistyczne zgromadzone przez państwo).
Doświadczenia wybranych państw NATO w zakresie stosowania rozwiązań
outsourcingu w siłach zbrojnych
Authors: Gromek mjr mgr inż. Marcin
Published: January 2019

Artykuł stanowi próbę identyfikacji doświadczeń trzech państw-członków NATO,
tj. Stanów Zjednoczonych, Wielkiej Brytanii oraz Republiki Federalnej Niemiec,
w zakresie stosowania rozwiązań outsourcingowych w siłach zbrojnych. W artykule
dokonano analizy rozwoju kontraktowania usług, charakterystyki współczesnych rozwiązań systemowych oraz opisano doświadczenia nadmienionych państw w zakresie
pragmatyki outsourcingu w siłach zbrojnych.
Charakterystyka samochodowego transportu osobowego na szczeblu centralnym
resortu obrony narodowe
Authors: Mazurkiewicz ppłk mgr inż. Grzegorz
Published: January 2019

W artykule zaprezentowana została charakterystyka transportu osobowego instytucji
centralnych resortu obrony narodowej. W pierwszej części przedstawiono przepisy
resortowe regulujące zasady użytkowania pojazdów wojskowych przeznaczonych
do przewozu osób. W drugiej części przedstawiona została charakterystyka środków
transportu osobowego w Siłach Zbrojnych Rzeczypospolitej Polskiej. W trzeciej części opisano organizację eksploatacji pojazdów wykonujących zadania transportowe
na rzecz personelu instytucji centralnych resortu obrony narodowej.
EUROPEJSKA UNIA OBRONY WYZWANIEM
DLA WSCHODNIEJ FLANKI NATO
Authors: Zieliński płk dr hab. Tadeusz
Published: January 2019

Przyjęcie przez Radę Europejską w czerwcu 2016 roku globalnej strategii na rzecz
polityki zagranicznej i bezpieczeństwa (Wspólna wizja, wspólne działanie: Silniejsza
Europa) stanowiło jeden z impulsów do pogłębionej dyskusji wśród państw europejskich
na tematy związane z obronnością. Kolejnymi bodźcami, które tę dyskusję wywołały
były: referendum decydujące o wyjściu Wielkiej Brytanii z Unii Europejskiej
(UE) oraz wygrana Donalda Trumpa w amerykańskich wyborach prezydenckich.
Można zaryzykować stwierdzenie, że powyższe czynniki doprowadziły do renesansu
wspólnej polityki bezpieczeństwa i obrony (WPBiO), co w konsekwencji ma prowadzić
do Europejskiej Unii Obrony. Ostrożność państw wschodniej flanki NATO
jednak w odniesieniu do nowych inicjatyw nakazuje stawiać pytania o przyszłość
Europejskiej Unii Obrony w kontekście kolektywnej obrony przypisanej do Sojuszu
Północnoatlantyckiego.
W artykule przedstawiono uwarunkowania związane z przyspieszeniem prac
w obszarze WPBiO oraz zasadnicze inicjatywy związane z jej rozwojem prowadzące
do utworzenia Europejskiej Unii Obrony, takie jak: poprawa struktur zarządzania kryzysowego,
wzmocnienie unijnych instrumentów szybkiego reagowania, planowanie
rozbudowy zdolności wojskowych, współpraca wojskowo-techniczna, zacieśnienie
współpracy strukturalnej między państwami członkowskimi UE, wzmocnienie współ-
pracy między NATO a UE. Scharakteryzowano także scenariusze uwzględniające róż-
norodny poziom zaangażowania państw członkowskich UE w budowanie zdolności
przyszłej Europejskiej Unii Obrony. Odniesiono się również do obaw państw wschodniej
flanki NATO związanych z przyspieszeniem WPBiO i potencjalnego osłabienia
zdolności NATO w tym kontekście
Standardy zarządzania ryzykiem w kontekście zarządzania ryzykiem skażeń
Authors: SOLARZ dr hab. inż. Jarosław
Published: January 2019

Związki chemiczne, materiały biologiczne oraz substancje promieniotwórcze od wielu
lat są wykorzystywane w codziennej działalności człowieka. Ich zastosowania obejmują
chyba wszystkie branże przemysłu, a także każdą inną działalność człowieka. Prawie
na każdym kroku mamy do czynienia z różnymi produktami, które powstały dzięki zastosowaniu
wspomnianych środków z produktami, bez których nasze życie nie byłoby
takie łatwe, wygodne czy bezpieczne. Aspekt bezpieczeństwa jest istotny także z innego
powodu, gdyż o ile nowe technologie nieustannie poprawiają nasze bezpieczeństwo,
to sama obecność materiałów niebezpiecznych w naszym otoczeniu generuje istotne
zagrożenia, które w pewnych sytuacjach mogą się zmaterializować i stanowić poważ-
ne problemy dla ludzi i środowiska. Specyfika takich obiektów powoduje, że wszelkie
działania muszą być bardzo precyzyjnie określone, a wszystkie odstępstwa i anomalie
pilnie odnotowane i uwzględnione w działaniach ochronnych. I właśnie do tego celu
potrzebne są najlepsze standardy zarządzania ryzykiem – takie, które zapewnią pełne
(maksymalnie możliwe) bezpieczeństwo dla ludzi i środowiska.
W artykule podjęto próbę analizy wybranych standardów zarządzania ryzykiem
oraz wstępnej identyfikacji ich możliwości w zakresie wykorzystania do zarządzania
ryzykiem skażeń.
LOGISTICS IN SERVICES VS. LOGISTIC SERVICES
Authors: PŁONECZKA Karolina
Published: January 2019

Nowadays, companies offer various logistics services to their customers. Diversity of
these services is essential for business. The range of services that logistics companies
cover depends on various factors; it can be solely transport, but can also be a complex
service that includes organisation of raw materials delivery, warehousing, delivery
of finished goods to customers and dealing with documents like invoices, waybills
and others. The increasing popularity of logistics in services is noticeable. This is
connected with global changes. This is a complex phenomenon that connects aspects
and features of services and logistics. The three most important areas for logistics
in services are: minimisation of waiting time, management of service potential and
service delivery. The goal of this article is to reveal the difference between these two
subjects and review the literature connected with them. The main conclusions are that
logistics services can be seen as belonging to logistics in the services phenomenon. In
every area of logistics in services, three phases can be distinguished: supply, production
and sales. Germany has the leading position in Europe when it comes to the logistics
services market. Dynamic changes in logistics have led to the development of a new
classification of logistics enterprises. The European Commission is analysing changes
in the sector in order to prepare new strategic objectives.
CONTEMPORARY BATTLEGROUND AND INNOVATIVE TECHNOLOGICAL
SOLUTIONS
Authors: DOŁHAN Aleksandra
Published: January 2019

The intense development of informational technology in the second half of the 20th
century had a considerable impact on the art of warfare, which visibly benefitted from
the development of new technologies and the scale of their application. Discernible new
trends that became popular included developing a conception of the future battlefield,
departing from violent armed clashes, and introducing dynamic, concentrated actions
together with a wide scope of possessed information about the enemy and an operating
environment as well as innovative technologies. State-of-the-art technologies have
a powerful influence on the development of the contemporary battlefield.
Hardness and microstructure investigation
of steel rod ST 42 coated by chrome
steel using wire arc spray coating
Authors: Puspitasari P. , Yudhistantra A. , Haryono A.S. , Dika J.W. , Achyarsyah M. , Shikh Zahari S.M.S.N.
Published: January 2019

Purpose: This research aimed to examine the hardness, surface roughness and
microstucture in the Steel Rod ST 42 coated by chrome steel using wire arc spray coating
with variations in spraying current of 140, 155, 170 and 180 Ampere.
Design/methodology/approach: There was 12 specimens consisting of 3 specimens
for each variation of the electric current coating. The specimens were cut to 30 mm in
length and 27 mm in diameter; as many as 4 x 3 pieces, each specimen was cut to a size
of 30 mm and put on a lathe to be drilled 1 mm deep. The hardness testing employed the
Brinell hardness test method. The hardness testing process was followed by microstructure
observation and SEM-EDAX testing.
Findings: The highest hardness was 110.77 HRB by coated at 155 A and it contained many
reinforcing inclusions and larger Cr. The lowest current of 140 A had many porosity holes
and partially-melted particles, causing Cr grains did not attach perfectly. The current with
170 A had few inclusions and hence a decrease in hardness and at 180 A consisted of a low
carbon content and evenly distributed inclusions and Cr and relatively large grain size, and
thus the hardness rose.
Research limitations/implications: The material of steel rod ST 42 coated by chrome
steel.
Practical implications: The variation of current should be prepared wisely in term
because it will effect the hardness, surface roughness and microstucture. This research can
be improved by varying the voltage, gas pressure, particle velocity, particle temperature, and
molten wire width.
Originality/value: Simple route of making steel rod ST 42 coated by chrome steel using
wire arc spray coating and also the investigation of hardness, surface roughness and
microstucture in steel rod ST 42 coated by chrome as the result.
Bone tissue loads around titanium femoral
implant and coated with porous layer
Authors: Bobik G. , Żmudzki J. , Majewska K.
Published: January 2019

Purpose: Difference in the mechanical properties of bone and stiffer femoral implant
causes bone tissue resorption, which may result in implant loosening and periprosthetic
fractures. The introduction of porous material reduces the stiffness of the implant. The aim
of the study was to analyse the influence of porous shell of femoral revision implant on bone
tissue loading distribution with use the finite element method.
Design/methodology/approach: Load transfer in the femur has been investigated
using the finite element method (Ansys). Cementless implant models were placed in the
anatomical femur model. Femur model included sponge bone and cortical bone. The solid
implant was compared with the implant containing porous material in 70% in outer layer
with a thickness of 2 mm. Load of 1500 N during gait was simulated. In addition, the forces
of the ilio-tibial band and the abductor muscles were implemented, as well as the torque
acting on the implant.
Findings: Increase of stress for the porous model was found. The underload zones in
bone have been reduced. Loading distribution was slightly more favourable, albeit rather
in cortical bone. Stress value in cancellous bone around cementless implant margin has
increased to a level that is dangerous for bone loss. Stress in the implant was not dangerous
for damage. The stress distribution was different in the implant neck zone where the porous
shell borne a little less load and high stress was shifted to the stiffer core.
Research limitations/implications: Variable conditions for fitting the stem to the bone
as well as the friction conditions were not investigated.
Practical implications: Stress values in the spongy bone around the insertion edge of
the cementless implant are consistent with long-term clinical results of the bone atrophy in
1 and 2 Gruen`s zones around the fully porous implants.
Originality/value: The advantage of fully porous coated implant was the decrease of
risk of trabecular bone tissue resorption around the implant tip and the increase of risk of
trabecular bone tissue resorption around insertion edge of the implant.
Netzneutralität in Europa
Authors: Francke Felix
Published: January 2019

In this study, Felix Francke examines the controversial topic of net neutrality from its technical basics to the measurement of interventions and thereby develops a modular system for the precisely targeted protection of the open Internet. His use of concrete measures avoids the normative prepositioning of previous studies and lays the foundations for a methodologically innovative comparison of different regulatory approaches in Europe. At the same time, his profound analysis provides a competent introduction on how the Internet functions for political scientists. Felix Francke conducts research on the area at which the Internet and society intersect and develops potential ideas for digitisation in the field of civic responsibility at ‘Stiftung Zukunft’ in Berlin.
From SA to the USA: Election forecasting
Authors: Holloway Jenny P , Ittmann Hans W , Dudeni-Tlhone Nontombeko , Schmitz Peter MU
Published: January 2019

Elections draw enormous interest worldwide, especially if these involve major countries, and there is much speculation in the media as to possible outcomes from these elections. In many of these recent elections, such as the UK and USA, however, forecasts from market surveys, electoral polls, scientific forecasting models and even exit polls, obtained from voters as they leave the voting stations, failed to predict the correct outcome. Election night forecasts, which endeavour to forecast the ultimate result before the final outcome is known using early results, were also carried out, with some more accurate than others.After successfully predicting most of the metropolitan region results correctly in the South African local 2016 municipal elections, using an election night forecasting model developed for South Africa (SA), the question of adapting the model to work outside of SA on a different electoral system was raised. The focus of this paper is to describe the results obtained for the 2016 USA presidential election, on election night, using an adapted version of the SA model. This paper also addresses the applicability of the model assumptions as well as the data issues involved in forecasting outside of South Africa. It is shown that even with many hurdles experienced in the process the model performed relatively well.
The Ross recovery theorem with a regularised multivariate Markov chain
Authors: Van Appel Vaughan , Maré Eben
Published: January 2019

Recently, Ross derived a theorem, namely the "Recovery theorem", that allows for the recovery of the pricing kernel and real-world asset distribution, under particular assumptions, from a forward-looking risk neutral distribution. However, recovering the real-world distribution involves solving two ill-posed problems. In this paper, the accuracy of a regularised multivariate mixture distribution to recover the real-world distribution is introduced and tested. In addition it is shown that this method improves the estimation accuracy of the real-world distribution. Furthermore, an empirical study, using weekly South African Top40 option trade data, is carried out to show that the recovered distribution is in line with economic theory.
Skin Adnexal Tumors in Plain Language: A Practical Approach for the General Surgical Pathologist
Authors: Fulton Edward H , Kaley Jennifer R , Gardner Jerad M
Published: January 2019

Context.—

Skin adnexal tumors, those neoplasms deriving from hair follicles and sweat glands, are often a source of confusion amongst even experienced pathologists. Many well-described entities have overlapping features, tumors are often only partially sampled, and many cases do not fit neatly into well-established classification schemes.

Objectives.—

To simplify categorization of adnexal tumors for the general surgical pathologist and to shed light on many of the diagnostic dilemmas commonly encountered in daily practice. The following review breaks adnexal neoplasms into 3 groups: sebaceous, sweat gland-derived, and follicular.

Data Sources.—

Pathology reference texts and primary literature regarding adnexal tumors.

Conclusions.—

Review of the clinical and histopathologic features of primary cutaneous adnexal tumors, and the diagnostic dilemmas they create, will assist the general surgical pathologist in diagnosing these often challenging lesions.
“Curadoria”, autoria e fraternidades transcontinentais: a produção de Joca Reiners Terron
Authors: Felippe Renata Farias de
Published: January 2019

A partir do romance Noite dentro da noite (2017), de Joca Reiners Terron, e da sua atuação como organizador literário da série Otra Língua – que apresenta ao leitor brasileiro a produção de escritores dos diferentes países hispano-americanos -, este trabalho pretende deter-se sobre a fraternidade transcontinental que o trabalho de Terron, como autor e como “curador”, delineia. É nesse sentido que Noite dentro da noite, até o momento, o romance mais ambicioso do escritor, é “lido”: como se fosse a porção brasileira de um continente íbero-americano literariamente forjado pela coleção, estratégia que permite refletir sobre espaços e sobre afetos.
A escrita de si através do corpo: "O corpo em que nasci", de Guadalupe Nettel
Authors: Dalcol Mônica Saldanha , Alós Anselmo Peres
Published: January 2019

O presente trabalho consiste em uma leitura crítica do romance O corpo em que nasci, de Guadalupe Nettel, a partir da “escrita de si” e da perspectiva de gênero. A narrativa está centrada na formação da identidade da protagonista a partir do próprio corpo, marcado desde o nascimento por “imperfeições”, pela descoberta da sexualidade e por diversos mecanismos que pretendem corrigi-lo e adequá-lo à normalidade.
Duality of ODE-determined norms
Authors: Talponen Jarno
Published: January 2019

Recently the author initiated a novel approach to varying exponent Lebesgue space $L^{p(\cdot)}$ norms. In this approach the norm is defined by means of weak solutions to suitable first order ordinary differential equations (ODE). The resulting norm is equivalent with constant $2$ to a corresponding Nakano norm but the norms do not coincide in general and thus their isometric properties are different. In this paper the duality of these ODE-determined $L^{p(\cdot)}$ spaces is investigated. It turns out that the duality of the classical $L^p$ spaces generalizes nicely to this class of spaces. Here the duality pairing and Hölder's inequality work in the isometric sense which is a notable feature of these spaces. The uniform convexity and smoothness of these spaces are characterized under the anticipated conditions. A kind of universal space construction is also given for these spaces.
Remarks on Diophantine approximation in function fields
Authors: Ganguly Arijit , Ghosh Anish
Published: January 2019

We study some problems in metric Diophantine approximation over local fields of positive characteristic.
Minimal complexes of cotorsion flat modules
Authors: Thompson Peder
Published: January 2019

Let $R$ be a commutative noetherian ring. We give criteria for a complex of cotorsion flat $R$-modules to be minimal, in the sense that every self homotopy equivalence is an isomorphism. To do this, we exploit Enochs' description of the structure of cotorsion flat $R$-modules. More generally, we show that any complex built from covers in every degree (or envelopes in every degree) is minimal, as well as give a partial converse to this in the context of cotorsion pairs. As an application, we show that every $R$-module is isomorphic in the derived category over $R$ to a minimal semi-flat complex of cotorsion flat $R$-modules.
Índice de Capacidades Asociativas: construcción teórica y propuesta metodológica de cálculo para organizaciones de economía solidaria
Authors: Espinoza Lastra Óscar Roberto , Gómez López José Daniel
Published: January 2019

La construcción del concepto de capacidades asociativas y el diseño de una metodología para calcular sus índices, han sido la razón principal de este estudio que tomó como unidad de análisis a la nacionalidad Tsáchila. Este grupo poblacional indígena está radicado en el cantón de Santo Domingo en Ecuador, y posee limitaciones económicas, organizacionales, educacionales y culturales que ponen en riesgo su conservación étnica. Al aplicar la investigación sobre capacidades asociativas en la nacionalidad Tsáchila, se pretendió identificar las fortalezas y las debilidades presentes en las relaciones económicas de solidaridad de este grupo étnico, de manera que puedan invertir su situación deficitaria hacia un escenario de crecimiento y madurez organizativa, que derive en aprovechamiento de su potencial ambiental, agroproductivo, turístico y cultural, a través de emprendimientos asociativos, para que dignifiquen sus condiciones de vida, recuperen su autoestima e identidad cultural, y se afiancen dentro de la economía solidaria. Los enfoques de las capacidades, tanto de Martha Nussbaum, así como de Amartya Sen, representan las principales bases teóricas sobre las cuales se estructura el concepto de Capacidades Asociativas. Así mismo, la metodología de cálculo del IDH ha servido de referencia para plantear un modelo propio de cálculo. Los índices de capacidades asociativas resultantes del estudio a la población Tsáchila develaron más debilidades que fortalezas, concretamente en los indicadores pertenecientes a las dimensiones de Cooperación, asociacionismo y ayuda mutua; y, Liderazgo y participación.
Marine biodiversity research in the Ryukyu Islands, Japan: Current status and trends
Authors: Reimer James D , Biondi Piera , Lau Yee Wah , Masucci Giovanni , Nguyen Xuan Hoa , Santos Maria E.A. , Wee Hin Boo
Published: January 2019

In Japan, the subtropical Ryukyu Archipelago (RYS; also known as the Nansei Islands) with its coral reefs has been shown to harbor very high levels of marine biodiversity. This study provides an overview of the state of marine biodiversity research in the RYS. First, we examined the amount of scientific literature in the Web of Science (WoS; 1995-2017) on six selected representative taxa spanning from protists to vertebrates across six geographic sub-regions in the RYS. Our results show clear taxonomic and sub-region bias, with research on Pisces, Cnidaria, and Crustacea to be much more common than on Dinoflagellata, Echinodermata, and Mollusca. Such research was more commonly conducted in sub-regions with larger human populations (Okinawa, Yaeyama). Additional analyses with the Ocean Biogeographic Information System (OBIS) records show that within sub-regions, records are concentrated in areas directly around marine research stations and institutes (if present), further showing geographical bias within sub-regions. While not surprising, the results indicate the clear need to study ‘understudied’ taxa in ‘understudied sub-regions’ (Tokara, Miyako, Yakutane, Amami Oshima), and to study ‘understudied areas’ of some sub-regions away from marine research stations. Second, we compared the numbers of scientific papers on eight ecological topics for the RYS with numbers from selected major coral reef regions of the world; the Caribbean (CAB), Great Barrier Reef (GBR), and the Red Sea (RES). Not unexpectedly, the numbers for all topics in the RYS were well below numbers from all other regions, yet within this disparity, research in the RYS on ‘marine protected areas’ and ‘herbivory’ was an order of magnitude lower than numbers in other regions. Additionally, while manuscript numbers on the RYS have increased from 1995 to 2016, the rate of increase (4.0 times) was seen to be lower than those in the CAB, RES, and GBR (4.6 to 8.4 times). As the RYS are considered to contain among the most critically endangered coral reef biodiversity in the world due to high levels of both endemism and anthropogenic threats, much work is urgently needed to address the areas of relative research weakness identified in this study.
The effect of the diversified signal of melatonin on milk yields in seasonally breeding sheep
Authors: Molik E. , Pasternak M. , Błasiak M. , Misztal T. , Romanowicz K. , Zieba D.
Published: January 2019

Abstract. Previous studies demonstrated that milk yields in sheep displaying strong seasonal sexual activity depend on the day length. The objective of the studies was to determine whether the introduction of melatonin in high pregnancy affects milk secretion in seasonally sheep. The studies were carried out on 60 Polish Longwool sheep. Sheep were allocated to three groups: Group I (n = 20 – the control group, lambed in February), Group II (n = 20 – a group of sheep lambed in June and kept under natural day-length conditions), Group III (n = 20 – a group of sheep with melatonin implants injected six weeks before lambing, sheep lambed in June). Lambs were reared with mothers up to 56th day of their life. When lambs were weaned, ewes were milked mechanically twice a day up to the dry period. Once a month collective milk samples were drawn from six sheep from each group in order to determine the concentration of melatonin. Milk yields were subjected to individual checks every 10 days. The studies demonstrated that sheep lambed in February (Group I) displayed the highest milk yields in the milking period (37.8 ± 8.1 l). The milk performance of the two other groups was lower and amounted to 30.2 ± 9.4 litres in case of sheep lambed in June and to 29.2 ± 7.6 litres in sheep with melatonin implants. The introduction of melatonin signal to produce a short-day condition in state of high pregnancy in ewes caused a drop of milk yields both in the period of lambs raising and during milking.
Associations between paratuberculosis status and milk production traits in Holstein cattle under consideration of interaction effects between test result and farm and lactation number
Authors: Küpper J. , Brandt H. , Donat K. , Erhardt G.
Published: January 2019

Abstract. One of the most important factors for economic losses as result of infection with Mycobacterium avium ssp. paratuberculosis (MAP) is the decrease in milk yield. Different phenotyping methods for MAP lead to an inconsistent impact of MAP infection on milk parameters. It was the aim of the study to analyse the effect of the MAP status on milk yield, milk fat and milk protein (in kilograms), as well as on the calving interval and milk kilograms per day of life in German Holstein cattle. A dataset of 9 367 faecal culture tested animals from 14 farms in Thuringia (Germany) were available. The MAP status of the animals affected milk yield and the milk parameters. Beside the effects of farm, lactation number and MAP status, the interaction between MAP status and farm on the milk parameters was significant. The latter result is a possible explanation for the inconsistent results from recent studies. For milk kg per day of life, the interaction between lactation number and MAP status also showed significance.