bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of the relationship between plaque formation leading to symptomatic carotid artery stenosis
and cytomegalovirus by investigating the virus DNA
Authors: Beyaz Metin Onur , Ugurlucan Murat , Oztas Didem Melis , Meric Mert , Conkbayir Cenk , Agacfidan Ali , Onel Mustafa , Alpagut Ufuk
Published: March 2019

Introduction

The most common etiologic factor of coronary artery disease (CAD), carotid artery disease, and peripheral artery disease is atherosclerosis. In our study, we aimed to show the effect of cytomegalovirus (CMV), which can occur almost everywhere in the human body, on triggering the chronic inflammatory process in the pathophysiology of atherosclerosis, and its presence and impact in the plaques leading to carotid artery stenosis.

Material and methods

Thirty-six patients, who underwent carotid endarterectomy at the Department of Cardiovascular Surgery, Istanbul University Istanbul Medical Faculty between April 2017 and April 2018, were included in this study upon their consent. Patients with additional immunosuppressive conditions were not included in the study. Unilateral atheromatous plaque was preferred for patients undergoing bilateral carotid endarterectomy and all risk factors (DM, HT, hyperlipidemia, etc.) were evaluated together for all patients.

Results

When the relationship between CMV (DNA) presence in samples taken from patients’ plaques and sex, age and comorbidities was examined, CMV (DNA) positivity (45.8%) was significantly higher in DM patients than non-DM patients (8.3%) (p = 0.024). Likewise, CMV(DNA) positivity (40%) was significantly higher in HT patients than in non-HT patients (25%) (p = 0.008). CMV(DNA) positivity (63%) was significantly higher in patients with bilateral carotid artery stenosis than patients without bilateral carotid artery stenosis (0%) (p < 0.001).

Conclusions

It has not yet been clarified whether CMV is a primary trigger for atherosclerosis on the vascular wall, or whether it presents incidentally due to its affinity. When CMV (DNA) positivity was examined according to the presence of bilateral carotid artery stenosis in our study, CMV (DNA) positivity was found to be significantly higher in patients with bilateral carotid artery stenosis (63.16%).
Is the presence of left atrial diverticulum associated with recurrence in patients undergoing catheter ablation for atrial fibrillation?
Authors: Demir Gültekin Günhan , Güneş Hacı Murat , Seker Mehmet , Savur Ümeyir , Güler Gamze Babur , Güler Ekrem , Dogan Mehmet , Erol Cengiz , Kılıçaslan Fethi
Published: March 2019

Introduction

Catheter ablation (CA) for atrial fibrillation (AF) has been a major cornerstone in the management of AF. Despite promising advances in CA techniques, long-term results reveal a high rate of recurrence after the procedure. Left atrial diverticulum (LAD), a common anatomic variant of the left atrium, was previously shown to be associated with increased risk of thrombus formation, cardiac perforation and arrhythmia. In this study we aimed to investigate the relationship between LAD and recurrence in patients undergoing CA for AF.

Material and methods

A total of 100 consecutive patients with a mean age of 53 ±12.1 years (53% male) underwent radiofrequency (RF) (46, 46%) or cryoballoon (54, 54%) catheter ablation for atrial fibrillation preceded by cardiac computed tomography (CT) imaging. Clinical and procedural characteristics of the patients with and without AF recurrence were compared.

Results

Twenty-three (23%) patients had AF recurrence and 77 (77%) patients had no recurrence. The clinical parameters such as hypertension, diabetes mellitus, coronary artery disease and stroke did not differ between the groups. Left atrium diameter was significantly different between the two groups (4.1 ±0.5 vs. 3.9 ±0.5, p = 0.042). Presence of LAD was not different between the two groups (7 (31.8) vs. 21 (28.8); p = 0.794). Multivariate logistic regression analysis revealed RF ablation as the most important independent variable for AF recurrence ( = 3.115, p< 0.001, OR = 22.526, 95% CI: 4.287–118.351).

Conclusions

The presence of left atrial diverticulum is not associated with recurrence in patients undergoing RF and cryoballoon CA for atrial fibrillation.
How does sport affect mental health? An investigation into the relationship of leisure-time physical activity with depression and anxiety
Authors: Siefken Katja , Junge Astrid , Laemmle Lena
Published: March 2019

Purpose

Physical activity (PA) can protect from developing mental disorders. Knowledge regarding optimal PA intensity, type, context, and amount for mental health is sparse. This study aims to determine the relationship between leisure-time PA and prevalence of depression and anxiety, and whether associations vary by PA amount, context, intensity, and type.

Methods

Overall, 682 recreational athletes (age: M = 33.0 years; SD = 12.4; 53% female) completed a questionnaire on personal characteristics related to their leisure-time PA behaviour, the Centre of Epidemiologic Studies Depression Scale
(CES-D), and the Generalized Anxiety Disorder (GAD-7) scale. Effect sizes (Cohen’s d,η2 partial) and power analyses using G*Power were applied.

Results

Individuals who met PA recommendations (n = 596) reported lower depression scores (M = 11.69; SD = 8.57) than those who did not meet the recommendations (n = 86; M = 12.88; SD = 8.73). Lowest depression and anxiety scores were observed for indoor team athletes (M = 10.75; SD = 7.66 and M = 2.94; SD = 3.03, respectively), followed by outdoor
individual athletes (M = 11.17; SD = 9.41 and M = 3.39; SD = 3.50, respectively). Under specific conditions, high depression scores were noted for vigorous-intensity PA levels (M = 20.5; SD = 4.94).

Conclusions

Meeting the WHO PA recommendations (moderate-intensity PA 150 min/week) reduces symptoms of depression and anxiety. However, no linear dose-response relation was observed. No differences were found between in- and outdoor or team and individual sports but between sport disciplines. Prospective research to evaluate the reasons is needed.
The relationship between the gross efficiency and the ability to repeat the given pressure force in trained cyclists
Authors: Hebisz Rafał , Błacha Ryszard , Hebisz Paulina , Szczepan Stefan
Published: March 2019

Purpose

The research aim was to determine the relationship between gross efficiency (E) and the ability to repeat the given pressure force (ARGPF).

Methods

A group of 23 road cyclists performed an incremental exercise test on a cycle ergometer and a repeated isometric force test (RIFT) with lower and upper limbs. E was calculated on the basis of the estimated energy expenditure (EE) during the last 30 seconds of the submaximal work with the loads of E-100W, E-150W, E-200W, E-250W, E-300W. During RIFT, carried out on a kinesthesiometer with strain gauges, the subjects performed pressures with the force of 10 kg with upper limbs and 20 kg with lower limbs. RIFT was performed immediately before and after the incremental test; the data served to express ARGPF by means of the repeated given pressure force (RGPF) value.

Results

Post-exercise RGPF for the left lower limb significantly correlated with E at all incremental test loads (r: 0.64, 0.72, 0.7, 0.63, 0.62, respectively, for 100 W, 150 W, 200 W, 250 W, and 300 W). Pre-exercise RGPF for the left upper limb significantly correlated with E at 100 W, 150 W, and 200 W loads (r: 0.68, 0.72, 0.62, respectively). Both RGPF for limbs
and E positively and statistically significantly correlated with the cyclists’ age.

Conclusions

Road cyclists with higher E presented greater variability of the repeated pressure force of the left limbs. Both characteristics show a strong relationship with the cyclists’ age, which may indicate that their development depends on training experience.
Bilateral thalamic stroke after tonsillectomy in patient with collateral extracranial anastomosis – case report
Authors: Milnerowicz Małgorzata , Garcarek Jerzy , Bladowska Joanna , Miś Marcin , Milnerowicz Aleksandra , Sąsiadek Marek
Published: March 2019

Haemorrhage remains the most frequent and serious complication of tonsillectomy. When bleeding is recurrent, gushing, and ceases spontaneously, pseudoaneurysm of the injured artery in the proximity of the tonsillar bed should be suspected. Haemorrhage related to pseudoaneurysm occurs most commonly in the first 30 days after surgery. It can sometimes be excessive and requires a revision procedure such as external carotid artery (ECA) ligation or embolisation. During those procedures, ECA should be checked for possible anastomoses, otherwise the bleeding may persist despite the intervention.

We report an unusual case of a patient with recurrent post-tonsillectomy haemorrhage due to pseudoaneurysm of the facial artery, which persisted after ECA ligation because of the presence of collateral occipital-vertebral anastomosis. Due to the recurrence of bleeding episodes, endovascular treatment was implemented. However, the embolisation was complicated by bilateral thalamic stroke with unclear mechanism.

This case highlights the importance of anastomosis between ECA and the vertebrobasilar system, both in recurrence of significant post-tonsillectomy bleeding and in potential thromboembolic complications. Therefore, ECA ligation should always be accompanied by exclusion of possible anastomoses. In cases of non-life-threatening bleeding, embolisation seems to be the proper and more selective therapy.
Seasonal study of stable carbon and nitrogen isotopic composition in fine aerosols at a Central European rural background station
Authors: Vodička Petr , Kawamura Kimitaka , Schwarz Jaroslav , Kunwar Bhagawati , Ždímal Vladimír
Published: March 2019

Abstract. A study of the stable carbon isotope ratios (δ13C) of total carbon (TC) and the nitrogen isotope ratios (δ15N) of total
nitrogen (TN) was carried out for fine aerosol particles
(PM1) and was undertaken every 2 days with a 24 h sampling period at a rural
background site in Košetice (Central Europe) from 27 September 2013 to
9 August 2014 (n=146). We found a seasonal pattern for both δ13C and δ15N. The seasonal variation in δ15N
was characterized by lower values (average of 13.1±4.5 ‰) in winter and higher values (25.0±1.6 ‰) in
summer. Autumn and spring were transition periods when the isotopic
composition gradually changed due to the changing sources and ambient
temperature. The seasonal variation in δ13C was less pronounced
but more depleted in 13C in summer (-27.8±0.4 ‰) as compared to winter (-26.7±0.5 ‰). A comparative analysis with water-soluble ions, organic carbon, elemental
carbon, trace gases and meteorological parameters (mainly ambient
temperature) has shown major associations with the isotopic compositions,
which has provided greater knowledge and understanding of the corresponding processes. A comparison of δ15N with NO3-, NH4+ and organic nitrogen (OrgN)
revealed that although a higher content of NO3- was associated
with a decrease in the δ15N of TN, NH4+ and OrgN
caused increases. The highest concentrations of nitrate, mainly represented
by NH4NO3 related to the emissions from biomass burning leading
to an average δ15N of TN (13.3 ‰) in
winter. During spring, the percentage of NO3- in PM1 decreased. An
enrichment of 15N was probably driven by the equilibrium exchange
between the gas and aerosol phases (NH3(g) ↔ NH4+(p)), which is supported by the increased ambient temperature.
This equilibrium was suppressed in early summer when the molar ratios of
NH4+/SO42- reached 2, and the nitrate partitioning in
aerosol was negligible due to the increased ambient temperature. Summertime
δ15N values were among the highest, suggesting the aging of
ammonium sulfate and OrgN aerosols. Such aged aerosols can be coated by
organics in which 13C enrichment takes place by the photooxidation
process. This result was supported by a positive correlation of δ13C with ambient temperature and ozone, as observed in the summer
season. During winter, we observed an event with the lowest δ15N and
highest δ13C values. The winter event occurred in prevailing
southeast air masses. Although the higher δ13C values probably
originated from biomass-burning particles, the lowest δ15N
values were probably associated with agriculture emissions of NH3 under
low-temperature conditions (< 0 ∘C).
Retrieving the global distribution of threshold of wind erosion from satellite data and implementing it into the GFDL AM4.0/LM4.0 model
Authors: Pu Bing , Ginoux Paul , Guo Huan , Hsu N. Christine , Kimball John , Marticorena Beatrice , Malyshev Sergey , Naik Vaishali , O'Neill Norman T. , García-Pando Carlos Pérez , Prospero Joseph M. , Shevliakova Elena , Zhao Ming
Published: March 2019

Abstract. Dust emission is initiated when surface wind velocities exceed the threshold of wind erosion. Most dust models used constant threshold values globally. Here we use satellite products to characterize the frequency of dust events and surface properties. By matching this frequency derived from Moderate Resolution Imaging Spectroradiometer (MODIS) Deep Blue aerosol products with surface winds, we are able to retrieve a climatological monthly global distribution of wind erosion threshold (Vthreshold) over dry and sparsely-vegetated surface. This monthly two-dimensional threshold velocity is then implemented into the Geophysical Fluid Dynamics Laboratory coupled land-atmosphere model (AM4.0/LM4.0). It is found that the climatology of dust optical depth (DOD) and total aerosol optical depth, surface PM10 dust concentrations, and seasonal cycle of DOD are better captured over the dust belt (i.e. North Africa and the Middle East) by simulations with the new wind erosion threshold than those using the default globally constant threshold. The most significant improvement is the frequency distribution of dust events, which is generally ignored in model evaluation. By using monthly rather than annual mean Vthreshold, all comparisons with observations are further improved. The monthly global threshold of wind erosion can be retrieved under different spatial resolutions to match the resolution of dust models and thus can help improve the simulations of dust climatology and seasonal cycle as well as dust forecasting.
Photospheric vortex flows close to the polarity inversion line of a fully emerged active region
Authors: Santos Jean C. , Wrasse Cristiano M.
Published: March 2019

Abstract. We report on the occurrence of vortexes in flow fields obtained from the evolution of the line-of-sight component of the photospheric magnetic field in a region around the polarity inversion line of a fully emerged active region. Based on a local linear approximation for the flow field, we identify the presence of critical points and classify them according to the eigenvalues of the Jacobian matrix of the linear transformation. Vortexes are associated to the presence of a particular kind of critical point, known as Attracting Focus. Using this method we identified twelve vortexes in the analyzed period and detected the occurrence of other types of critical points, which indicate the complexity of the flow field around the PIL. The detected vortexes show a clockwise preferred sense of rotation with approximately 67 % of the cases. A geometrical analysis of the velocity structures produced an average value of D = 1.63 ± 0.05 for the fractal dimension, which is very close to the one obtained for isotropic homogeneous turbulence (D = 5/3). This suggests that the flow around the polarity inversion line is turbulent in nature.
Potential of global land water recycling to mitigate local temperature extremes
Authors: Hauser Mathias , Thiery Wim , Seneviratne Sonia Isabelle
Published: March 2019

Abstract. Soil moisture is projected to decrease in many regions in the 21st century,
exacerbating local temperature extremes. Here, we use sensitivity experiments
to assess the potential of keeping soil moisture conditions at historical
levels in the 21st century by “recycling” local water sources (runoff and a
reservoir). To this end, we develop a “land water recycling” (LWR) scheme
which applies locally available water to the soil if soil moisture drops
below a predefined threshold (a historical climatology), and we assess its
influence on the hydrology and extreme temperature indices. We run ensemble
simulations with the Community Earth System Model for the 21st century and
show that our LWR scheme is able to drastically reduce the land area with
decreasing soil moisture. Precipitation responds to LWR with increases in
mid-latitudes, but decreases in monsoon regions. While effects on global
temperature are minimal, there are very substantial regional impacts on
climate. Higher evapotranspiration and cloud cover in the simulations both
contribute to a decrease in hot temperature extremes. These decreases reach up to about
−1 ∘C regionally, and are of similar magnitude to the regional
climate changes induced by a 0.5 ∘C difference in the global mean
temperature, e.g. between 1.5 and 2 ∘C global warming.
Impact of Hurricanes Irma and Maria on the PTWC Tsunami
Warning Capability for the Caribbean Region
Authors: Sardina Victor , Walsh David , Koyanagi Kanoa , Weinstein Stuart , Becker Nathan , McCreery Charles , von Hillebrandt-Andrade Christa
Published: March 2019

Abstract. In September 2017, hurricanes Irma and Maria wreaked havoc across the Caribbean region. While obliterating the infrastructure in the Caribbean nations found along their path, both hurricanes gradually destroyed the existing seismic networks. We quantified the impact of the hurricanes on the PTWC tsunami warning capability for the Caribbean region relying on the computation of theoretical earthquake detection and response times after accounting for hurricane-related station outages. The results show that the hurricanes rendered inoperative 38 % of the 146 stations available in the Caribbean. Within the eastern Caribbean region monitored by PTWC the hurricanes exacerbated outages to an astonishing 82 % of the available 76 seismic stations. Puerto Rico, the Virgin Islands, and the Lesser Antilles suffered the brunt of both hurricanes, and their seismic networks nearly disappeared. The double punch delivered by two successive category 5 hurricanes added up to 02:43 and 04:33 minutes to the earthquake detection and response times, effectively knocking out PTWC's local tsunami warning capabilities in the region. Emergency adjustments, including the temporary reduction of the number of stations required for earthquake detection and ML magnitude release, enabled a faster response to earthquakes in the region than otherwise possible in the aftermath of hurricanes Irma and Maria.
High-accuracy UAV photogrammetry of ice sheet dynamics with no ground control
Authors: Chudley Thomas R. , Christoffersen Poul , Doyle Samuel H. , Abellan Antonio , Snooke Neal
Published: March 2019

Abstract. Unmanned aerial vehicles (UAVs) and structure from motion with multi-view stereo
(SfM–MVS) photogrammetry are increasingly common tools for geoscience
applications, but final product accuracy can be significantly diminished in
the absence of a dense and well-distributed network of ground control points
(GCPs). This is problematic in inaccessible or hazardous field environments,
including highly crevassed glaciers, where implementing suitable GCP networks
would be logistically difficult if not impossible. To overcome this
challenge, we present an alternative geolocation approach known as
GNSS-supported aerial triangulation (GNSS-AT). Here, an on-board
carrier-phase GNSS receiver is used to determine the location of photo
acquisitions using kinematic differential carrier-phase positioning. The
camera positions can be used as the geospatial input to the photogrammetry
process. We describe the implementation of this method in a low-cost,
custom-built UAV and apply the method in a glaciological setting at Store
Glacier in western Greenland. We validate the technique at the calving front,
achieving topographic uncertainties of ±0.12 m horizontally (∼1.1× the ground sampling distance) and ±0.14 m vertically
(∼1.3× the ground sampling distance), when flying at an altitude
of ∼ 450 m above ground level. This compares favourably with previous
GCP-derived uncertainties in glacial environments and allows us to apply the
SfM–MVS photogrammetry at an inland study site where ice flows at
2 m day−1 and stable ground control is not available. Here, we were
able to produce, without the use of GCPs, the first UAV-derived velocity
fields of an ice sheet interior. Given the growing use of UAVs and SfM–MVS
in glaciology and the geosciences, GNSS-AT will be of interest to those
wishing to use UAV photogrammetry to obtain high-precision measurements of
topographic change in contexts where GCP collection is logistically
constrained.
Evaluation of snow depth and snow-cover over the Tibetan Plateau in global reanalyses using in-situ and satellite remote sensing observations
Authors: Orsolini Yvan , Wegmann Martin , Dutra Emanuel , Liu Boqi , Balsamo Gianpaolo , Yang Kun , de Rosnay Patricia , Zhu Congwen , Wang Wenli , Senan Retish
Published: March 2019

Abstract. The Tibetan Plateau (TP) region, often referred to as the Third Pole and, is the world highest plateau and exerts a considerable influence on regional and global climate. The state of the snowpack over the TP is a major research focus due to its great impacts on the headwaters of a dozen major Asian rivers. While many studies have attempted to validate atmospheric re-analyses over the TP area in terms of temperature or precipitation, there have been – remarkably – no studies aimed at systematically comparing the snow depth or snow cover in global re-analyses with satellite and in-situ data. Yet, snow in re-analyses provides critical surface information for forecast systems from the medium to sub-seasonal time scales. Here, snow depth and snow cover from 5 recent global reanalysis products are inter-compared over the TP region, and evaluated against a set of 33 in-situ station observations, as well as against the Interactive Multi-sensor Snow and Ice Mapping System (or IMS) snow cover and a satellite microwave snow depth dataset. The high temporal correlation coefficient (0.78) between the IMS snow cover and the in-situ observations provides confidence in the station data despite the relative paucity of in-situ measurement sites and the harsh operating conditions. While several re-analyses show a systematic over-estimation of the snow depth or snow cover, the reanalyses that assimilate local in-situ observations or IMS snow-cover are better capable of representing the shallow, transient snowpack over the TP region. The later point is clearly demonstrated by examining the family of re-analyses from the European Centre for Medium-Range Weather Forecasts (ECMWF), of which only the older ERA-Interim assimilated IMS snow cover at high altitudes, while ERA5 did not consider IMS snow cover for high altitudes. One missing process in the re-analyses is the blown snow sublimation, which seems important in the dry, windy and cold conditions of the TP. By incorporating a simple parametrisation of this process in the ECMWF land re-analysis, the positive snow bias is somewhat alleviated. Future snow reanalyses that optimally combine the use of satellite snow cover and in-situ snow-depth observations over the Tibetan Plateau region in the assimilation and analysis cycles, along with improved representation of snow processes, have the potential to substantially improve weather and climate prediction and water resources applications.
Improving mid-altitude mesoscale wind speed forecasts using LiDAR-based observation nudging for Airborne Wind Energy Systems
Authors: Sommerfeld Markus , Crawford Curran , Steinfeld Gerald , Dörenkämper Martin
Published: March 2019

Abstract. Airborne wind energy systems (AWES) aim to operate at altitudes above conventional wind turbines where reliable high resolution wind data is scarce. Wind LiDAR measurements and mesoscale models both have their advantages and disadvantages when assessing the wind resource at such heights. This article investigates whether assimilating measurements into the mesoscale WRF model using observation nudging generates a more accurate, complete data set. The impact of continuous observation nudging at multiple altitudes on simulated wind conditions is compared to an unnudged reference run and to the LiDAR measurements themselves. We compare the impact on wind speed and direction for individual days, average diurnal variability and long term statistics. Finally, wind speed data is used to estimate optimal traction power and operating altitudes of AWES. Observation nudging improves the overall accuracy of WRF. Close to the surface the impact of nudging is limited as effects of the air-surface interaction dominate, but becomes more prominent at mid-altitudes and decreases towards high altitudes. The wind speed probability distribution shows a multi-modality caused by changing atmospheric stability conditions. Based on a simplified AWES model the most probable optimal altitude will be around 400 m. Such systems will benefit from dynamically adjusting their operating altitude.
Significant multi-decadal variability of German wind energy generation
Authors: Wohland Jan , Omrani Nour Eddine , Keenlyside Noel , Witthaut Dirk
Published: March 2019

Abstract. Wind energy has seen large deployment and substantial cost reductions over the last decades. Further ambitious upscaling is urgently needed to keep the goals of the Paris Agreement within reach. While the variability of wind power generation poses a challenge to grid integration, much progress in quantifying, understanding and managing it has been made over the last years. Despite this progress, relevant modes of variability in energy generation have been overlooked. Based on long-term reanalyses of the 20th century, we demonstrate that multi-decadal wind variability has significant impact on wind energy generation in Germany. These modes of variability can not be detected in modern reanalyses that are typically used for energy applications due to their short covered timespan of around 40 years. We show that energy generation over a 20 y wind park lifetime varies by around ± 5 % and the summer-to-winter ratio varies by around ± 15 %. Moreover, ERA-interim based annual and winter generations are biased high as the period 1979–2010 overlaps with a maximum of multi-decadal variability. The induced variations of windpark lifetime revenues are at the order of 10 % with direct implications for profitability. Our results require to rethink energy system design, for example the calculation of optimum shares of different renewable technologies, as a perpetual process.
Investigación y prácticas sociológicas: escenarios para la transformación social, García-Castilla, Francisco Javier, Díaz Santiago, María José (coords.). Madrid, UNED, 2018.
Authors: Kuric Kardelis Stribor
Published: March 2019

El libro, coordinado por Francisco Javier García-Castilla y María José Díaz Santiago, es una compilación de diecinueve investigaciones agrupadas en cuatro bloques temáticos: género y nuevas formas de organización del trabajo, estrategias residenciales y de movilidad social, la desigualdad social en la estructura del bienestar e investigaciones sobre acción política y participación ciudadana. El mérito del texto es incuestionable tanto por la ambición desplegada en la amplitud temática como por la correlación y relevancia de las investigaciones en, y entre, sí. El contexto de producción académica actual tiende cada vez más a la publicación de artículos y el hecho de que un conjunto de profesionales tan amplio se haya podido coordinar para compilar sus investigaciones en un marco común es, en sí, una proeza. Además de esto, cada uno de los bloques temáticos cuenta con una relevancia propia en el campo de la sociología que, a pesar de la variedad temática y metodológica, se estructura a través de un hilo conductor que permite sumar las partes y alcanzar una visión más global sobre los problemas que se trabajan. Siguiendo la estructura del libro, organizaré la reseña a través de los cuatro bloques temáticos que ya he definido.
14D, historia y memoria de la huelga general. El día que se paralizó España. Babiano, José; Tébar, Javier (coords.). Los Libros de la Catarata, Fundación 1º Mayo, 2018. 126 pp.
Authors: Rúa Fernández José Manuel
Published: March 2019

Huelga general 14D, 30 años después 1988-2018. Madrid: Fundación Francisco Largo Caballero, 2018. 168 pp
Segregación ocupacional. Participación y reconocimiento de mujeres empleadas en trabajos de dominación masculina. Aguado Bloise, Empar y Ballesteros Doncel, Esmeralda (coords.) (2018). Valencia. Tirat humanidades.
Authors: Díaz Santiago María José
Published: March 2019

Ampar Aguado y Esmeralda Ballesteros son las coordinadoras de este libro resultado del proyecto de investigación Mujeres en un mundo de hombres: socialización, organización laboral e imagen pública que, a través de estudios de caso, cuentan experiencias colectivas de mujeres en ocho ocupaciones. La policía nacional, el transporte aéreo, la estiba, la mecánica, la iluminación y sonido, la informática, el reportaje de guerra y el fotoperiodismo son ocupaciones donde la participación de las mujeres es desigual, aunque con componentes estructurales compartidos que ahondan en la segregación ocupacional.
Understanding the Social Perceptions of Male Saudi Nationals: A Glimpse Into Gender Inequality in the Kingdom of Saudi Arabia
Authors: Alharethi Ali S.
Published: March 2019

Saudi Arabia is in the limelight with relation to gender equality throughout the globe. It is said that they exist a shift in the way in which KSA is attempting to alter its society. It is suggested that this is pushed on by globalization, modernization and westernization. One factor that the rest of the globe is focused on relates to the way in which Saudi women viewed treated. This has resulted in drastic changes in policies for women in Saudi Arabia due to both internal and external forces. Saudi Arabia is secretive with relation to the way it conducts its internal policies. With the large number of Saudi students who are studying abroad there is a suggestion this can aid in tackling gender equality issues within Saudi Arabia. This study looks at whether Saudi male student’s opinions have changed due to the exposure of other societies and in particular with that of the UK. It is concluded that Saudi male students are in fact altering their perceptions and that exposure to new social environments are pushing these changes in thoughts. Although small in size, the participants of the study support this notion. Ultimately, further analysis is required so as to promote reliability and validity but these results seem somewhat promising to Saudi women.
The Potential Analysis of Dairy Cattle Farm Development at Dairy Farmer Group in West Ungaran District, Semarang Region
Authors: Sirappa Iven Patu , Sunarso Sunarso , Sirappa Marthen P.
Published: March 2019

The objective of the study was to determine the potency of dairy cattle development, famers income, factors influencing the income of dairy farmers in the West Ungaran District. This study was conducted from February to April 2016. The determination of the sample villages was using purposive based Livestock Farmer Group (LFG) and the total population of dairy cattle. Further, respondents were determined by using census method for 47 people; those were 13 respondents of “Mardi Mulyo” LFG members, 7 respondents of “Sumber Hasil” LFG members, and 27 respondents of “Ngudi Makmur” LFG members. This study used regression, and SWOT analysis. The results of this study showed the multiple regression analysis showed that milk production significantly influences the income of dairy farmers. Farmers income in “Mardi Mulyo”, “Sumber Hasil” and “Ngudi Makmur” group in a row during one month arrived at IDR 703,292/had, IDR 2.157.250/had and IDR 1,649,395/had, respectively. In addition, SWOT analysis showed a total score of internal and external scores of 3.61 and 2.73. Based on the results of business development analysis of dairy cattle in West Ungaran District, it could be concluded that the dairy farm in category IV, stability strategy and coordinate points are in quadrant IV.
Towards understanding nonmanuality: A semiotic treatment of signers’ head movements
Authors: Puupponen Anna
Published: March 2019

This article discusses a certain type of nonmanual action, signers’ head movements, from a semiotic perspective. It presents a typology of head movements and their iconic, indexical and symbolic features based on Peircean and post-Peircean semiotics. The paper argues for the view that (i) indexical strategies are very prominent in head movements, (ii) iconic features are most evident in enacting, while non-enacting description is less common, (iii) symbolic types for tokens are infrequent, although some movements—such as nodding and shaking the head—may become more conventional or schematized, and (iv) different types of head movements involve different proportions of iconicity, indexicality and symbolicity as well as different degrees of control in their production and interpretation. The treatment of head movements is extended to a discussion of semiotic versatility in the signification of actions of a signer’s body, as well as to the treatment of nonmanuals in the theoretical description of sign languages. Finally, the paper presents a perspective on nonmanuals in which different nonmanual cues are examples of how signification, and human cognition in general, are closely connected to the embodied experience of existing and navigating in the physical and social world around us.
Effect of Dehulling on Proximate Composition and Functional Properties of Lima Bean (Phaseolus lunatus) Grown in Enugu State
Authors: Ibeabuchi Juliana C. , Okafor Damaris C. , Ahaotu Ndidiamaka N. , Eluchie Chioma N. , Agunwah Ijeoma M. , Chukwu Michael N. , Amandikwa Chinyere
Published: March 2019

This physical properties, proximate composition and functional properties of Lima bean (Phaseolus lunatus) obtained from Enugu State were studied. The result obtained for dehulled and undehulled lima bean with respect to proximate composition gave the following value for dehulled lima bean: moisture 7.18%, crude fat 4.67%, protein 14.24%, crude fiber 17.89%, ash 0.66% and carbohydrate 55.36% while undehulled lima bean contents were moisture 4.30%, crude fat 2.62%, protein 16.31%, crude fiber 18.00%, ash content 2.13%, carbohydrate 56.14%. Moisture, crude fat, protein and ash contents were significantly different than crude fiber and carbohydrate. The functional properties showed higher values for dehulled than undehulled okpokoro flour. The emulsion capacity 4.35 (ml/g) for dehulled and 3.03 (ml/g) for undehulled; foam capacity 31.67% for dehulled and 25.33% for undehulled; bulk density 0.82 (ml/g) and 0.88(ml/g) water absorption capacity 2.238 (ml/g) for dehulled and 1.98(ml/g) for undehulled etc., showing that the dehulled okpokoro flour had better functional potentials than the undehulled flour.
Safety education in the face of threats to human security
Authors: Pieczywok Andrzej
Published: March 2019

The article provides information on relationships and dependencies between education and human security. The author tries to combine these two areas (levels) of meaning into one whole, giving them a uniform form of definition - the concept of safety education. This concept includes elements such as values, attitudes, human awareness, counteracting threats, a sense of security or institutionalism. The content of the article consists of two main parts: determinants of the safety education process and the essential social and cultural threats to human existence. Much attention has been devoted to the risks to personal security. The main idea of the article proves that personal (human) safety together with a sense of peace and stagnation as well as structural safety have a fundamental impact on the sense of security of individuals.
Selected leadership qualities
Authors: Gaj Marta
Published: March 2019

The article presents the essence and importance of leadership, with particular reference to the specificity of military leadership. The purpose of the article is to indicate the validity of certain leadership qualities in the civil and military context, as well as the interaction between them. The research was carried out on civilian organization employees who were to assess the validity of selected leadership traits. The most important features and social competencies necessary for effective leadership and attitudes, described in the literature as worthy of imitation, are presented. The applied research methods (the analysis of literature and surveys in civilian organizations) allowed for indicating the distinguished leadership traits and some similarities between the characteristics of a military and civilian leader
MATHEMATICAL MODELING SINGULARLY PERTURBED PROCESSES OF WATER SOFTENING ON SODIUM-CATIONITE FILTERS
Authors: Safonyk Andrij , Prysiazhniuk Ihor , Prysiazhniuk Olena , Naumchuk Oleksandr
Published: March 2019

Mathematical model of the process of water softening using ion exchange pre-treatment of waters to desalination, with a view to removal of scale forming components, such as calcium and magnesium, are formed in the paper. In this process, no additional chemicals, except for brines formed during desalination, are required for regeneration of ion-exchanger in operation cycles. An asymptotic approximation of a solution of a corresponding model problem is constructed. Theoretical description and modelling assumptions included the set of differential equations of mass balance, initial, boundary and operational conditions. The paper deals with the development of a computer model for description and prediction of the performance of ion exchange columns.
Sistematização de dados: uma análise do estado da arte no campo educacional
Authors: Silva Assis Leão da , Santos Vilma De Albuquerque , Andrade Cristiano Dornelas de , Ferreira Wilma Dos Santos
Published: March 2019

Neste texto se analisa a produção acadêmica a respeito de mecanismos de informação - doravante monitoramento - no campo educacional, identificando e descrevendo nas pesquisas a temática da sistematização de dados para gestão educacional. Como procedimento metodológico utilizou-se a pesquisa bibliográfica do tipo sistemática. Os dados foram obtidos pelo portal de periódicos da Capes, base de dados do Scielo e Scielo Educ@. Busca-se ampliar a complexa posição conceitual da pesquisa ao qual está vinculado, revisitando a literatura existente, delineando o estado da arte, para reconhecer as diferentes contribuições científicas sobre a temática problematizada. Consta-se que a sistematização de dados é uma temática a ser explorada no campo educacional.Palavras-chave: monitoramento; gestão educacional; estado da arte.
Biblioteca Electrónica Textual del teatro español (1868-1936) e investigación con grafos
Authors: Martínez Carro Elena , Santa María Teresa
Published: March 2019

Este artículo presenta, en primer lugar, el proceso de trabajo para la construcción de la Biblioteca Electrónica Textual del Teatro en Español (1868-1936) del Grupo de Humanidades y Edición Digital (GHEDI). Dentro de las decisiones y labores realizadas hasta la fecha encontramos: la elección de los autores, el proceso de trabajo de las obras que se han editado con lenguaje de marcado XML-TEI, la construcción de metadatos y la utilización posterior de grafos para el análisis de las piezas dramáticas. En segundo lugar, encontramos una reflexión sobre el valor del uso de los grafos y el alcance de los metadatos empleados, a partir del estudio de los grafos elaborados sobre dos obras: Electra de Benito Pérez Galdós y Luces de bohemia de Valle-Inclán.
Surgical outcomes of 14 consecutive bilateral cleft lip patients treated with a modified version of the Millard and Manchester methods
Authors: Al-Zajrawee Mustafa Zahi , Aljodah Mohammed Abd-Alhussein , Hassan Qays Ahmed
Published: March 2019

Background Bilateral cleft lip deformity is much more difficult to correct than unilateral cleft lip deformity. The complexity of the deformity and the sensitive relationships between the arrangement of the muscles and the characteristics of the external lip necessitate a comprehensive preoperative plan for management. The purpose of this study was to evaluate the repair of bilateral cleft lip using the Byrd modification of the traditional Millard and Manchester methods. A key component of this repair technique is focused on reconstruction of the central tubercle.

Methods Fourteen patients with mean age of 5.7 months presented with bilateral cleft lip deformity and were operated on using a modification of the Millard and Manchester techniques. Patients with a very wide cleft lip and protruded or rotated premaxilla were excluded from this study. We analyzed 30 normal children for a comparison with our patients in terms of anthropometric measurements.

Results By the end of the follow-up period (between 9 and 19 months), all our patients had obtained a full central segment with adequate white roll in the central segment and a deep gingivolabial sulcus, and we obtained nearly normal anthropometric measurements in comparison with age-matched normal children.

Conclusions We recommend this modified technique for the treatment of bilateral cleft lip deformity.
Hair transplantation in patients with hair loss or scar deformity in the side hairline after midfacelifting surgery
Authors: Kim Yang Seok , Na Young Cheon , Park Jae Hyun
Published: March 2019

Background Successful aesthetic plastic surgery is devoid of both unsightly scarring and postoperative disfigurement. Patients undergoing midface-lifting surgery are very often disconcerted by an altered side hairline, including sideburns, despite considerable amelioration of facial wrinkles. This study was conducted to identify an effective means of approaching an altered hairline and the unavoidable scarring arising from midface-lifting surgery.

Methods A total of 37 patients who underwent corrective surgery with hair transplantation for hair loss or scar deformity arising from midface-lifting surgery from June 2014 to June 2017, and were observed for more than 6 months thereafter, were enrolled in the study. Prior to corrective surgery, the patients were administered a multiple-choice survey regarding their dissatisfaction arising from midface-lifting surgery. Among the 37 patients, 24, 12, and one underwent donor harvesting by the strip method, non-shaven follicular unit extraction, and partial shaving follicular unit extraction, respectively. Additionally, 33 of the 37 patients underwent hair transplantation in the frontotemporal recess area along with hairline correction surgery. The average number of transplanted grafts was 1,025.

Results Surgery resulted in a natural and satisfactory appearance in all patients. The average patient and physician subjective satisfaction scores were 4.6 and 4.8, respectively. No adverse events such as folliculitis occurred.

Conclusions Side-hairline correction surgery by hair transplantation can be considered an effective method of realigning an altered hairline accompanied by scars following midfacelifting surgery.
Analysis of subclinical infections and biofilm formation in cases of capsular contracture after silicone augmentation rhinoplasty: Prevalence and microbiological study
Authors: Jirawatnotai Supasid , Mahachitsattaya Bhakabhob
Published: March 2019

Background Implant-related deformities in aesthetic rhinoplasty are a major problem for rhinoplasty surgeons. Capsular contracture is believed to be the pathological cause of delayed contour deformities, comparable to breast implant-related contracture. This study investigated the prevalence of bacterial biofilms and other epidemiological factors related to capsular contracture in cases of silicone augmentation rhinoplasty.

Methods Thirty-three patients who underwent corrective rhinoplasty due to a delayed contour deformity or aesthetic revision after implant rhinoplasty were studied from December 2014 to December 2016. All recruited patients received surgical correction by the authors. The patients were categorized by clinical severity into four grades. Demographic data and related confounding factors were recorded. Samples of capsular tissue and silicone removed from each patient were analyzed for the presence of a biofilm by ultrasonication with bacterial culture and scanning electron microscopy.

Results Thirty-three paired samples of capsular tissue and silicone implants from the study group were analyzed. Biofilms were detected in one of 10 subjects (10%) with grade 1 contracture, two of four (50%) with grade 2 contracture, 10 of 14 (71.40%) with grade 3 contracture, and four of five (80%) with grade 4 contracture (P<0.05). The organisms found were Staphylococcus epidermidis (47.10%), coagulase-negative staphylococci (35.30%), and Staphylococcus aureus (17.60%).

Conclusions As with breast implant-related capsular contracture, silicone nasal augmentation deformities likely result from bacterial biofilms. We demonstrated the prevalence of biofilms in patients with various degrees of contracture. Implant type and operative technique seemed to have only vague correlations with biofilm presence.
Closure of a full-thickness scalp burn that occurred during hair coloring using a simple skin-stretching method: A case report and review of the literature
Authors: Oh Suk Joon
Published: March 2019

Full-thickness scalp burns secondary to hair coloring are rare; however, such defects can be large and complex reconstruction of hair-bearing tissue may be necessary. Many skin-stretching devices that use gradual traction have been applied to take advantage of the viscoelastic properties of the skin. A 21-year-old female patient was seen with a burn defect on her occipital scalp leading to exposed subcutaneous tissue after chemical application of hair coloring in a salon. The dimensions of the wound were 10 cm×5 cm, and a skin graft or flap would have been necessary to close the defect. Two long transfixing K-wires (1.4 mm) and paired 3-wire threads (23 gauge), which are readily available in most hospitals, were applied over a period of 12 days for trichophytic closure of the defect. The remaining scalp scars after primary trichophytic closure with this skin-stretching method were refined with hair follicle transplantation. This skin-stretching method is simple to apply and valuable for helping to close problematic areas of skin shortage that would otherwise require more complicated procedures. This case shows a relatively unknown complication of hair coloring and its treatment.