bluuebunny/crossref_metadata_2025 huggingface dataset:
The De Long Trough: defining the mineralogical signature of the East Siberian Ice Sheet
Authors: Alatarvas Raisa Maria Hannele , O'Regan Matthew , Strand Kari Olavi
Published: September 2021

Abstract. The Arctic's glacial history has classically been interpreted from marine records in terms of the fluctuations of the Eurasian and North American ice sheets. However, the existence, size, and timing of the East Siberian Ice Sheet (ESIS) remains highly uncertain. A recently discovered glacially scoured cross-shelf trough extending to the edge of the continental shelf north of the De Long Islands has provided additional evidence that glacial ice existed on parts of the East Siberian Sea (ESS) during previous glacial periods (MIS 6 and 4). This study concentrates on defining the mineralogical signature and dynamics of the ESIS. Sediment materials from the East Siberian shelf and slope were collected during the 2014 SWERUS-C3 expedition. The cores studied are 20-GC1 from the East Siberian shelf, 23-GC1 and 24-GC1 from the De Long Trough (DLT), and 29-GC1 from the southern Lomonosov Ridge (LR). Heavy mineral assemblages were used to identify prominent parent rocks in hinterland and other sediment source areas. The parent rocks areas include major eastern Siberian geological provinces such as the Omolon massif, the Chukotka Fold Belt, the Verkhoyansk Fold Belt, and possibly the Okhotsk–Chukotka Volcanic Belt. The primary riverine sources for the ESS sediments are the Indigirka and Kolyma rivers, which material then was glacially eroded and re-deposited in the DLT. The higher abundances of hornblendes in the heavy mineral assemblages may indicate ESS paleovalley of the Indigirka river as a major pathway of sediments, while the Kolyma river paleovalley pathway relates to a higher share of pyroxenes and epidote. Mineralogical signature in the DLT diamicts, consisting predominantly of amphiboles and pyroxenes with minor content of garnet and epidote, show clear delivery from the eastern sector of the ESIS. Although the physical properties of the DLT basal diamict closely resemble a pervasive diamict unit recovered across the southern LR, their source material is slightly different according to their heavy mineral content. Assemblages with elevated amphibole and garnet content, along with higher titanite and ilmenite content from core 29-GC1 from the southern LR emphasise the Verkhoyansk Fold Belt as a possible source. This suggests that glacial ice not only grew out from the East Siberian shelf, but also from the New Siberian Islands and westerly sources due to the dynamics in the ice flow and deposition. An increase in the iron oxides in the sediments overlying the diamicts relates to the deglaciation cycle of the ESIS when the central plateau, or at least the shoreline and river discharge region, were possibly free from ice, and the reworking as well as enrichment of iron oxides was possible. This indicates sea-ice rather than iceberg transport for the present distal shelf sediments.
Contrasting lacustrine groundwater discharge and associated nutrient loads in different geological conditions
Authors: Sun Xiaoliang , Du Yao , Deng Yamin , Fan Hongchen , Ma Teng
Published: September 2021

Abstract. The spatial patterns of lacustrine groundwater discharge (LGD) and associated nutrients input is crucial for effective management and protection of lakes. Multiple factors have been found to influence the spatial differences in LGD rates and associated nutrients loads, but the influence of geological conditions on the differences have not been well understood. In this study, we quantified LGD rates and associated nutrients loads in two sides with contrasting geological conditions of East Dongting Lake (EDL) within central Yangtze catchment and discuss the influence of geology on the spatial differences, through 222Rn mass-balance model, water chemistry coupled with existing geological data. The results showed that LGD rates were 38.66 ± 21.07 mm d−1 in the east EDL which is characterized by hilly geomorphy, deep/fast/narrow flowing, coarse-grained lakebed and large hydraulic gradients (0.004–0.006). Surprisingly, LGD rates were higher (92.82 ± 51.98 mm d−1) in the west EDL which is characterized by alluvial-lacustrine plain geomorphology, shallow/sluggish flowing, clayey or silty lakebed and low hydraulic gradients (0.0002–0.0015). The remaining factor determining the higher LGD rates in the west EDL is the permeability of the porous aquifer connected with the lake, which could be enlarged by some preferential pathways including large-scale buried paleo-channel and small-scale plant roots. The groundwater around the east EDL existed in a less confined environment, and frequent flushing led to low concentrations of nutrients. On the contrast, rapid burial of sediments and deposition of paleo-lake sediments since Last Deglaciation formed an organic-rich and reducing environment, which facilitated the enrichment of geogenic nutrients. As a result, the loads of LGD-derived nutrients in the west generally exceeded that in the east by one order of magnitude. In practice, future water resource management and ecological protection of Dongting Lake should focus on groundwater discharge in west EDL. This study highlights an important role of geological conditions in determining contrasting LGD rates and associated nutrients loads in large freshwater lakes.
Ensemble Riemannian Data Assimilation: Towards High-dimensional Implementation
Authors: Tamang Sagar Kumar , Ebtehaj Ardeshir , van Leeuwen Peter Jan , Lerman Gilad , Foufoula-Georgiou Efi
Published: September 2021

Abstract. This paper presents the results of the Ensemble Riemannian Data Assimilation for relatively high-dimensional nonlinear dynamical systems, focusing on the chaotic Lorenz-96 model and a two-layer quasi-geostrophic (QG) model of atmospheric circulation. The analysis state in this approach is inferred from a joint distribution that optimally couples the background probability distribution and the likelihood function, enabling formal treatment of systematic biases without any Gaussian assumptions. Despite the risk of the curse of dimensionality in the computation of the coupling distribution, comparisons with the classic implementation of the particle filter and the stochastic ensemble Kalman filter demonstrate that with the same ensemble size, the presented methodology could improve the predictability of dynamical systems. In particular, under systematic errors, the root mean squared error of the analysis state can be reduced by 20 % (30 %) in Lorenz-96 (QG) model.
Regional study of mode-2 internal solitary waves in the Pacific coast of Central America using marine seismic survey data
Authors: Fan Wenhao , Song Haibin , Gong Yi , Yang Shun , Zhang Kun
Published: September 2021

Abstract. In this paper, a regional study of the mode-2 internal solitary waves (ISWs) in the Pacific coast of Central America is carried out by using seismic reflection method. The observed relationship between the dimensionless phase velocity and the dimensionless amplitude (DA) of the mode-2 ISWs was analysed. When DA < 1, the dimensionless phase velocity increases with the increasing dimensionless amplitude, divided into two parts with different growth rates. When DA > 1, the dimensionless phase velocity increases with the increasing dimensionless amplitude at a relatively small growth rate. We suggest that the influences of seawater depth (submarine topography), pycnocline depth, and pycnocline thickness on the phase velocity of the mode-2 ISWs in the study area, cause the relationship between the dimensionless phase velocity and the dimensionless amplitude diversified. The observed relationship between the dimensionless wavelength and the dimensionless amplitude of the mode-2 ISWs was also analysed. When DA < 1 and DA > 2, the dimensionless wavelength decreases and increases with the increasing dimensionless amplitude, respectively. Additionally, the seawater depth has a great influence on the wavelength of the mode-2 ISWs in the study area, and overall the wavelength increases with the increasing seawater depth. As for the vertical structure of the amplitude of the mode-2 ISWs in the study area, we find that it is affected by the nonlinearity of the ISWs and the pycnocline deviation (especially the downward pycnocline deviation).
Occurrence of structural aluminum (Al) in marine diatom biological silica: Visible evidence from microscopic analysis
Authors: Tian Qian , Liu Dong , Yuan Peng , Li Mengyuan , Yang Weifeng , Zhou Jieyu , Wei Huihuang , Zhou Junming , Guo Haozhe
Published: September 2021

Abstract. The global marine biogeochemical cycle of aluminum (Al) is believed to be driven by marine diatoms, due to the uptake of dissolved Al (DAl) by living diatoms from surface seawater. The occurrence of Al in diatom biogenic silica (BSi) can inhibit the dissolution of BSi, thus benefiting the effects of the ballast role of diatoms in the biological pump and forming a coupled Si-Al biogeochemical cycle. However, the occurrence mechanism of Al in marine diatoms is still unclear. In particular, whether or not Al is incorporated into the structure of BSi of living diatoms is unrevealed, resulting in difficulties in understanding the biogeochemical behaviors of Al. In this study, Thalassiosira weissflogii, a widely distributed marine diatom in marginal seas, was selected as the model to evaluate the occurrence of structural Al in BSi based on culturing experiments with the addition of DAl. The structural Al in BSi was detected by combining focused ion beam (FIB) scanning electron microscopy and energy dispersive X-ray spectroscopy (EDS) mapping analysis. Direct evidence of structural Al in living BSi was obtained for the first time. The distribution and content of this Al were revealed by the EDS-mapping analysis. The structural Al in the BSi exhibited a homogeneous distribution, and the average Al / Si atomic ratio obtained through the FIB-EDS mapping analysis was 0.011. The effects of structural Al on BSi dissolution-inhibition are discussed based on the content of this Al. The fundamental results indicate the significant contribution of marine diatoms to the biogeochemical migration of marine Al.
Evaluation of snow extent time series derived from Advanced Very High Resolution Radiometer global area coverage data (1982–2018) in the Hindu Kush Himalayas
Authors: Wu Xiaodan , Naegeli Kathrin , Premier Valentina , Marin Carlo , Ma Dujuan , Wang Jingping , Wunderle Stefan
Published: September 2021

Abstract. Long-term monitoring of snow cover is crucial for climatic
and hydrological studies. The utility of long-term snow-cover products lies in
their ability to record the real states of the earth's surface. Although a
long-term, consistent snow product derived from the ESA CCI+ (Climate Change Initiative) AVHRR GAC (Advanced Very High Resolution Radiometer global area coverage) dataset
dating back to the 1980s has been generated and released, its accuracy and
consistency have not been extensively evaluated. Here, we extensively
validate the AVHRR GAC snow-cover extent dataset for the mountainous Hindu
Kush Himalayan (HKH) region due to its high importance for climate change
impact and adaptation studies. The sensor-to-sensor consistency was first
investigated using a snow dataset based on long-term in situ stations (1982–2013).
Also, this includes a study on the dependence of AVHRR snow-cover accuracy
related to snow depth. Furthermore, in order to increase the spatial
coverage of validation and explore the influences of land-cover type,
elevation, slope, aspect, and topographical variability in the accuracy of
AVHRR snow extent, a comparison with Landsat Thematic Mapper (TM) data was included. Finally, the performance of the AVHRR GAC snow-cover dataset was also compared to the
MODIS (MOD10A1 V006) product. Our analysis shows an overall accuracy of
94 % in comparison with in situ station data, which is the same with MOD10A1 V006.
Using a ±3 d temporal filter caused a slight decrease in accuracy
(from 94 % to 92 %). Validation against Landsat TM data over the area with a wide range of conditions (i.e., elevation, topography, and land cover)
indicated overall root mean square errors (RMSEs) of about 13.27 % and 16 % and overall biases of
about −5.83 % and −7.13 % for the AVHRR GAC raw and gap-filled snow
datasets, respectively. It can be concluded that the here validated AVHRR
GAC snow-cover climatology is a highly valuable and powerful dataset to
assess environmental changes in the HKH region due to its good quality, unique
temporal coverage (1982–2019), and inter-sensor/satellite consistency.
Southern Ocean polynyas in CMIP6 models
Authors: Mohrmann Martin , Heuzé Céline , Swart Sebastiaan
Published: September 2021

Abstract. Polynyas facilitate air–sea fluxes, impacting climate-relevant properties such as sea ice formation and deep water production. Despite their importance, polynyas have been poorly represented in past generations of climate models. Here we present a method to track the presence, frequency and spatial distribution of polynyas in the Southern Ocean in 27 models participating in the Climate Model Intercomparison Project Phase 6 (CMIP6) and two satellite-based sea ice products. Only half of the 27 models form open-water polynyas (OWPs), and most underestimate their area. As in satellite observations, three models show episodes of high OWP activity separated by decades of no OWP, while other models unrealistically create OWPs nearly every year. In contrast, the coastal polynya area is overestimated in most models, with the least accurate representations occurring in the models with the coarsest horizontal resolution. We show that the presence or absence of OWPs is linked to changes in the regional hydrography, specifically the linkages between polynya activity with deep water convection and/or the shoaling of the upper water column thermocline. Models with an accurate Antarctic Circumpolar Current transport and wind stress curl have too frequent OWPs. Biases in polynya representation continue to exist in climate models, which has an impact on the regional ocean circulation and ventilation that should be addressed. However, emerging iceberg discharge schemes, more adequate vertical grid type or overflow parameterisation are anticipated to improve polynya representations and associated climate prediction in the future.
Brief communication: Application of a muonic cosmic ray snow gauge to monitor the snow water equivalent on alpine glaciers
Authors: Gugerli Rebecca , Desilets Darin , Salzmann Nadine
Published: September 2021

Abstract. Monitoring the snow water equivalent (SWE) in the harsh environments of high mountain regions is a challenge. Here, we explore the use of muon counts to infer SWE. We deployed a muonic cosmic ray snow gauge (µ-CRSG) on a Swiss glacier during the snow rich winter season 2020/21 (almost 2000 mm w.e.). The µ-CRSG measurements agree well with measurements by a neutronic cosmic ray snow gauge (n-CRSG) and they lie within the uncertainty of manual observations. We conclude that the µ-CRSG is a highly promising method to monitor SWE in remote high mountain environments with several advantages over the n-CRSG.
Analisis Auditor Switching dan Faktor-Faktor yang Mempengaruhinya pada Perusahaan Non Keuangan yang Terdaftar di Bursa Efek Indonesia
Authors: Lubis Febri Ariani , Pasaribu Aria Masdiana , Surbakti Syamsul Bahri
Published: September 2021

This study aims to analyze the effect of Audit Opinion, Management Change, Public Accountant Firm Size, and Client Company Size on Auditor switching in Non-Financial Companies listed on the Indonesia Stock Exchange in 2018-2019. In this study, the population obtained from non-financial companies was 420. The sample obtained for 2 years was 210 samples. The sample data used uses secondary data, namely the annual financial statements of non-financial companies in 2018-2019. The data analysis technique used is logistic regression. The results of this study conclude that the variable of management turnover and the size of KAP have an effect on auditor switching, while audit opinion and the size of the client's company have no effect on auditor switching. Keywords: Audit Opinion, Management Change, Public Accounting Firm Size, Client Firm Size, Auditor Switching
Understanding London’s church tweeters: A content analysis of church-related tweets posted from a global city
Authors: Cooper Anthony-Paul , Mann Joshua , Sutinen Erkki , Phillips Peter
Published: September 2021

This study builds on the findings of previous research into church-related tweets by considering and analysing the content of 1,004 tweets containing the word “church” which were posted from within Greater London during a 10-week period. The qualitative analysis of the resultant Twitter dataset enabled the research team to validate a previously proposed coding framework for church-related tweets, subject to a minor change, and provide new evidence around the types of content discussed in church-related tweets posted from across all London boroughs. This paper concludes by drawing-out some of the key lessons which sociologists of religion can learn by exploring church-related tweets.
Instagram influencer marketing: Perceived social media marketing activities and online impulse buying
Authors: Koay Kian Yeik , Teoh Chai Wen , Soh Patrick Chin-Hooi
Published: September 2021

The main objective of this research is to investigate the impact of social media marketing activities — restricted only to Instagram influencers — on online impulse buying through the mediating effect of source credibility (attractiveness, expertise, and trustworthiness), predicated on Stimulus-Organism-Response (S-O-R) theory. The hypothesised relationships were examined using cross-sectional data obtained from 273 Instagram users. Partial least squares structural equation modelling (PLS-SEM) using the SMART-PLS software was employed as the primary data analysis method. The results revealed that the perceived social media marketing activities of Instagram influencers have a significant positive influence on the perceptions of followers pertaining to all three dimensions of source credibility (attractiveness, expertise, and trustworthiness). In turn, only attractiveness and trustworthiness were found to have a significant positive influence on online impulse buying. Moreover, this study revealed that it was the perceived attractiveness and trustworthiness of Instagram influencers that were the influential mediating factors in the relationship between perceived social media marketing activities and online impulse buying. There is a dearth of studies that have been conducted on the examination of the mechanism through which Instagram influencers’ social media marketing activities influence online impulse buying. This study is significant as it provides new insights into the importance of Instagram influencers social media marketing activities in affecting followers’ online impulse buying through source credibility.
Facebook’s policies against extremism: Ten years of struggle for more transparency
Authors: Bouko Catherine , Van Ostaeyen Pieter , Voué Pierre
Published: September 2021

For years, social media, including Facebook, have been criticized for lacking transparency in their community standards, especially in terms of extremist content. Yet, moderation is not an easy task, especially when extreme-right actors use content strategies that shift the Overton window (i.e., the range of ideas acceptable in public discourse) rightward. In a self-proclaimed search of more transparency, Facebook created its Transparency Center in May 2021. It also has regularly updated its community standards, and Facebook Oversight Board has reviewed these standards based on concrete cases, published since January 2021. In this paper, we highlight how some longstanding issues regarding Facebook’s lack of transparency still remain unaddressed in Facebook’s 2021 community standards, mainly in terms of the visual ‘representation’ of and endorsement from dangerous organizations and individuals. Furthermore, we also reveal how the Board’s no-access to Facebook’s in-house rules exemplifies how the longstanding discrepancy between the public and the confidential levels of Facebook policies remains a current issue that might turn the Board’s work into a mere PR effort. In seeming to take as many steps toward shielding some information as it has toward exposing others to the sunshine, Facebook’s efforts might turn out to be transparency theater.
Factores asociados a no realizar cuarentena por COVID-19 en población venezolana residente en Chile
Authors: Roessler Vergara Pablo Ignacio , Soto Ramírez Tomás , Cabieses Báltica
Published: September 2021

Introducción: El colectivo venezolano residente en Chile ha aumentado no solamente en cantidad, sino también en la vulnerabilidad en que migran, por ello se vuelve relevante comprender cómo han llevado adelante las una de las medidas de cuidado ante la propagación de COVID-19 más promulgadas a nivel mundial: la realización cuarentena. Objetivo: Analizar qué elementos dificultan la realización de cuarentena en la población venezolana residente en Chile, al ser el confinamiento una de las medidas más promulgadas para proteger a la población ante la propagación de COVID-19. Metodología: Lo anterior se aborda por medio de un estudio cuantitativo observacional de corte transversal desde una encuesta online sobre COVID-19 a extranjeros en Chile, realizada en abril (2020), por medio de una estrategia de muestreo en “bola de nieve” (n=1.690 migrantes). Este análisis secundario se focaliza en participantes venezolanos (N=1.006), por medio de análisis descriptivo, bivariado y de regresión multivariada, con ajuste de Raking para disminuir el sesgo de auto-selección. Resultados: Las chances de no poder realizar cuarentena son mayor en quienes cuentan con trabajo ([OR=5,35, 95%IC [3,16-9,02]), en relación a los que no; en quienes no poseen previsión de salud ([OR=4,02, 95%IC [1,57-10,32]) y en los que tienen previsión pública (Fonasa) ([OR=3,92, 95%IC [1,84-8,35]), en relación a las personas con previsión privada; en hombres ([OR=2,23, 95%IC [1,50-3,32]) que en mujeres; y en los que tienen nivel educacional menor a nivel superior ([OR=1,74, 95%IC [11,50-3,32]). Conclusión: La asociación encontrada entre no cumplir cuarentena con condiciones laborales y tipo de previsión de salud expone la relevancia de la vulnerabilidad socioeconómica en las oportunidades de llevar adelante medidas de cuidado de salud pública en población migrante venezolana en Chile, como es el seguimiento de confinamiento durante una pandemia como la de COVID-19. Esto es importante para la planificación sanitaria en futuras crisis socio-sanitarias.
Características Tomográficas de la Anatomía Laríngea Normal en pacientes que acuden del Hospital de Clínicas San Lorenzo, Paraguay 2020.
Authors: Santacruz Agüero Juan Francisco , Mena Canata Carlos Enrique
Published: September 2021

La tomografía computarizada es el estudio Gold standard para complementar a la endoscopia en el estudio de patologías laríngeas. Por lo tanto, se debe tener conocimiento de la anatomía normal de la laringe. En el presente trabajo se analizaron 26 tomografías de pacientes que acudieron al Servicio de Imágenes del Hospital de Clínicas sin patología laríngea. Se lograron identificar las características anatómicas radiológicas de la laringe buscadas en cada una de ellas. Siendo las características buscadas: Calcificación cartílagos laríngeos, Altura cartílago tiroideo, Distancia tiro-aritenoidea, Distancia interaritenoidea, Altura y diámetro del espacio preepiglótico.
Correlación entre las estrategias SITA Estándar 24 -2 y SITA Faster 24 -2 para evaluar el daño campimétrico en pacientes con Glaucoma Primario de Ángulo Abierto
Authors: Pavía Justo Manuel , Vera Duarte Guillermo Raúl , Arrúa Caballero Martín Fernando
Published: September 2021

INTRODUCCION: Una campimetría ideal debería idealmente probar todas las intensidades en todas las localizaciones, sin embargo, se ha visto que no es muy práctico realizar pruebas con las distintas intensidades y, en ocasiones, ni siquiera es posible por las limitaciones que implica en la duración. Las estrategias de SITA Estándar fueron aprovechadas por más de dos décadas, pero buscando aun mejorar el tiempo sin perder la calidad, se volvió a crear una nueva estrategia más corta, a la cual llamaron estrategia FASTER. OBJETIVO: Determinar la correlación entre las estrategias SITA Estándar 24 -2 y SITA Faster 24 -2 para evaluar el daño campimétrico en pacientes con Glaucoma Primario de Angulo Abierto. METODOLOGÍA: Estudio observacional analítico. RESULTADOS: Se analizó 74 resultados de análisis del campo visual utilizando dos técnicas SITA Estándar 24 – 2 y SITA Faster 24 - 2. El tiempo de prueba para la estrategia SITA Estándar fue de 379,64 ± 72,75 segundos y para la estrategia SITA Faster 170,93 ± 49,17 (p<0,0001), probando una reducción de tiempo del 55% para la segunda. Los valores de desviación media, desviación patrón estándar y el índice de campo visual no mostraron diferencias estadísticamente significativas entre ambas pruebas. La Prueba de Hemicampo de glaucoma con el cálculo del índice Kappa de Cohen arroja un valor de 0,316 con un intervalo de confianza del 95 % de (0,098 – 0,534) lo que indica que es estadísticamente significativo. Discusión: Los resultados generales indican que es posible reemplazar la estrategia SITA Estándar 24 -2 con la estrategia SITA Faster 24 - 2. Este cambio será especialmente útil para aumentar la frecuencia de exámenes campimétricos, determinante para una detección más temprana de la progresión del glaucoma y así mejorar las conductas terapéuticas que se toman con los pacientes que acuden a nuestro servicio.
Intento de Autoeliminación en la Niñez y Adolescencia. Presentación de un modelo de prevención del intento de autoeliminación en niños y adolescentes tempranos en un Hospital Pediátrico en Montevideo
Authors: Martínez-Schiavo Adriana , Viola Laura
Published: September 2021

Objetivo general: Descripción del trabajo realizado en la Policlínica Especializada en Conductas Autolesivas (PECA) de la Clínica de Psiquiatría Infantil. Presentación de un posible modelo de prevención del segundo o posteriores intentos de autoeliminación(IAE). Objetivos específicos: Analizar características epidemiológicas y psicopatológicas individuales y familiares de los adolescentes que realizaron un intento de autoeliminación durante el período evaluado. Analizar la utilidad de implementación de un dispositivo que posibilite la prevención de la recidiva del IAE. Explorar estrategias que aseguren la continuidad del tratamiento. Método: Estudio descriptivo, transversal de una muestra de niños y adolescentes de edades entre 6 y 15 años que consultaron por comportamientos suicidas en un periodo de 9 meses (n=102 pacientes), en los años 2012-2013. Se realizaron entrevistas clínicas semiestructuradas, se aplicó la CBCL (Child Behavior Check List) y Cuestionario complementario. Resultados: El 78.8% de la muestra son del sexo femenino y el 75% tienen entre 12-14 años. Primer IAE 68%, segundo o más IAE 16%. Escolarizados 63,6%. Media de PT (Problemas Totales) 66,4. El 42,3% de los padres refieren que sus hijos son víctima de violencia. Del n 102, 90 continúan su tratamiento. Frecuencia de reingresos 12%. Un suicidio. Conclusiones: El desarrollo de un modelo de prevención del segundo o posteriores intentos de autoeliminación durante un periodo de 9 meses, evidencia la importancia de un seguimiento de proximidad. Las alteraciones emocionales y conductuales objetivadas en una población joven se favorecen por los bajos niveles de escolaridad y la violencia intrafamiliar.
Mucocele frontal: reporte de caso
Authors: Ocampos Carlos Jorge , Pires Cardozo Francisco Adrián , Mena Canata Carlos Enrique
Published: September 2021

Los mucoceles de los senos paranasales son tumoraciones expansivas que muestran diferentes presentaciones y localizaciones. Son tumores benignos de crecimiento lento, pero debido a la expansión que presentan causan la erosión y desplazamiento de las estructuras adyacentes, la edad de presentación varía de los 40 a los 60 años, sin predilección por el sexo. Aproximadamente en el 60-65% de casos afectan a los senos paranasales frontales. La clínica de presentación es variable y depende mucho del tamaño del mucocele, así como de su localización y tiempo de evolución, pueden permanecer asintomáticos por mucho tiempo y debutar con alguna complicación; en los de localización frontal los hallazgos más frecuentes son cefalea frontal, asimetría facial, alteraciones a nivel ocular como diplopía, proptosis ocular, disminución de la movilidad ocular, reducción de la agudeza visual, incluso pudiendo llegar a pérdida de la visión total en el ojo afecto; la expansión intracraneal también puede llevar a fístulas de líquido cefalorraquídeo, meningitis y abscesos cerebrales. En el diagnóstico es fundamental solicitar el par radiológico de tomografía y resonancia magnética con contraste para determinar la extensión real del mucocele, la afectación de las estructuras adyacentes y optar por la mejor terapéutica posible. Esta patología es de manejo quirúrgico, el objetivo es abrir la cavidad del mucocele para lograr una adecuada ventilación y drenaje del seno afecto, actualmente la cirugía endoscópica nasal o combinada es la terapéutica más empleada.
Nghiên cứu mối liên quan giữa chỉ số điện cơ kim với lâm sàng và hình ảnh cộng hưởng từ ở bệnh nhân thoát vị đĩa đệm cột sống thắt lưng
Authors: Linh Nguyễn Tường Ngọc , Thuận Nguyễn Đức
Published: September 2021

Mục tiêu: Nhận xét đặc điểm biến đổi chỉ số điện cơ kim và mối liên quan với lâm sàng và hình ảnh cộng hưởng từ ở bệnh nhân thoát vị đĩa đệm cột sống thắt lưng. Đối tượng và phương pháp: Gồm 60 bệnh nhân được chẩn đoán xác định thoát vị đĩa đệm cột sống thắt lưng, điều trị nội trú tại Bệnh viện Quân y 103 từ tháng 09/2020 đến tháng 03/2021. Kết quả: Nhóm tuổi 40 - 59 chiếm tỷ lệ cao nhất 48,3%; tỷ lệ nam/nữ là 1,14/1, vị trí thoát vị đĩa đệm L4-L5 63,3%, L5-S1 30%, L4-L5 và L5-S1 6,7%, kiểu thoát vị ra sau lệch phải 41,6%, thoát vị ra sau lệch trái 55%, lỗ ghép 3,4%. Về điện cơ kim bên bệnh: Tỷ lệ bệnh nhân có bất thường điện cơ kim 50%, trong đó: Tổn thương rễ L5 30%, rễ S1 13,3%, rễ L5 và S1 6,7%; 90% bệnh nhân có điện thế tự phát; 100% bệnh nhân có kết tập giảm và đơn vị vận động bệnh thần kinh. Tỷ lệ bất thường điện cơ kim cao hơn ở nhóm bệnh nhân: Mắc bệnh trên 6 tháng, đau nặng và rất nặng theo thang điểm VAS, thoát vị đĩa đệm giai đoạn 3, thoát vị đĩa đệm mức độ nặng, chèn ép rễ độ III và hẹp ống sống mức độ nặng, khác biệt có ý nghĩa thống kê với p<0,05. Kết luận: Có mối liên quan giữa tỷ lệ bệnh nhân thoát vị đĩa đệm cột sống thắt lưng có biến đổi trên điện cơ kim với mức độ nặng trên lâm sàng và mức độ tổn thương trên MRI cột sống thắt lưng.
Fenomena Dakwah Di Media Sosial Youtube
Authors: Tirta Wibawa Agung
Published: September 2021

Dakwah adalah kegiatan menyeru dan mengajak manusia pada jalan kebenaran,  fenomena dakwah hari ini berkembang begitu cepat dan dinamis dengan kehadiran teknologi informasi dan internet, sehingga dakwah bisa dilaksanakan di dunia maya. Penelitian ini bertujuan untuk menggambarkan bagaimana fenomena dakwah yang terjadi di dunia maya, terutama di media youtube. Hal ini penting diteliti untuk melihat bagaimana efek kehadiran teknologi komunikasi dan informasi pada perkembangan dakwah di dunia maya. Sehingga metode penelitian ini menggunkan pendekatan kualitatif fenomenologi, dengan maksud agar dapat menggambarkan fakta apa adanya. Hasil dari penelitian ini didapat bahwa perkembangan dakwah di dunia maya semakin pesat bahkan respon dan timbal balik dari jamaahpun cukup positif, hal itu dapat terlihat dari tanggapan  jamaahnya yang dapat dilihat disetiap postingan dakwah. Penelitian ini memberikan saran bagi ilmu dakwah itu yakni bagaimana meningkatkan kemampuan komunikasi massa para mubaligh di dunia maya. Oleh karena itu, bila dakwah mampu merespon ini maka ia akan mampu menghiasi rubrik di dunia maya, sehingga konvergensi bentuk dakwah dapat menjadi wajah baru dakwah di era digital.
Gambaran Sikap terhadap Perilaku Seksual Pranikah pada Remaja Kelas XI di SMA “Y” Bandung
Authors: Hanafitri Aulia
Published: September 2021

Pada saat memasuki usia remaja, umumnya individu akan mulai mengembangkan sikap yang baru pada lawan jenis dan minat pada berbagai aktivitas yang melibatkan lawan jenisnya.  Berdasarkan hasil wawancara terhadap Koordinator Bimbingan Konseling SMA “Y” Bandung, diperoleh datamengenai minat dan perilaku seksual siswa kelas XI SMA “Y” Bandung yaknipara siswa sangat antusias terhadap materi tentang seks, berpakaian yang menarik perhatian lawan jenis, sering melihat foto atau video porno, saling berangkulan dan berciuman di lingkungan sekolah, dan adanya kasus kehamilan siswa yang terjadi hampir setiap tahun. Tujuan dari penelitian ini adalah untuk memperoleh gambaran mengenai “Sikap Terhadap Perilaku Seksual Pranikah pada Remaja Kelas XI SMA ‘Y’ Bandung”. Metode penelitian yang digunakan adalah metode penelitian deskriptif dengan data yang diperoleh melalui kuisioner “Sikap Terhadap Perilaku Seksual Pranikah”. Subjek dalam penelitian ini berjumlah 139 siswa yang diperoleh berdasarkan cluster random sampling yang seusai dengan karakteristik dan mewakili siswa SMA “Y” Bandung.Hasil penelitian menunjukkan bahwa sikap terhadap perilaku seksual pranikah remaja kelas XI SMA “Y” Bandung menyebar pada empat kategori, yaitu 2,1% siswa memiliki sikap positif terhadap perilaku seksual pranikah, sebanyak 13,7% siswa memiliki sikap cenderung positif terhadap perilaku seksual pranikah, sebanyak 33,1% siswa memiliki sikap cenderung negatif terhadap perilaku seksual pranikah, dan 51,1% siswa memiliki sikap negatif terhadap perilaku seksual pranikah. Berdasarkan hasil penelitian, peneliti menyarankan untuk dibuat suatu program penyuluhan dengan materi “kesehatan reproduksi remaja terhadap siswa SMA “Y” Bandung. Hal tersebut bertujuan untuk memfasilitasi kebutuhan informasi mengenai seks yang tepat bagi para remaja, khususnya siswa-siswi SMA “Y” Bandung di dalam menghadapi masa remaja dan minat terhadap seksualitas.
Analisis Pengaruh Pengembangan Sumber Daya Manusia Terhadap Kinerja Pegawai pada Sekretariat Badan Koordinasi Promosi dan Penanaman Modal Daerah (BKKPMD) Provinsi Jawa Barat
Authors: Sofyan Meti Mediyastuti , Kamelia Kamelia
Published: September 2021

Penelitian ini bertujuan untuk mengkaji faktor-faktor yang terkait dengan pengembangan Sumber Daya Manusia yang berpengaruh terhadap kinerja pegawai aparatur sipil negara. Organisasi pemerintah diharapkan mampu meningkatkan kompetensinya, baik secara individu maupun kelembagaan. Peningkatan kinerja pegawai maupun organisasi secara menyeluruh tidak bisa dilepaskan dari tingkat kemampuan dan kompetensi pegawai dalam menjalankan tugasnya. Sumber Daya Manusia (SDM) adalah aset yang paling penting dalam organisasi.Kemampuan pegawai menjadi tolak ukur untuk mencapai sebuah tujuan organisasi. Sumber daya manusia yang berkualitas tercipta melalui usaha yang terorganisasi dari kesadaran setiap individu dan lingkungan organisasi. Pengetahuan pegawai yang lemah merupakan penghambat bagi suksesnya pekerjaan organisasi.Penelitian ini bertujuan untuk Menganalisis besarnya pengaruh Pengembangan Sumber Daya Manusia terhadap Kinerja 31 responden pegawai pada Sekretariat Badan Koordinasi Promosi dan Penanaman Modal Daerah Provinsi Jawa Barat serta Mengembangkan Tingkatan-tingkatan Pengembangan Sumber Daya Manusia dan Kinerja Pegawai pada Sekretariat Badan Koordinasi Promosi dan Penanaman Modal Daerah Provinsi Jawa Barat. Penelitian ini menggunakan metode explanatory survey, dimana dataya diperoleh melalui studi kepustakaan dan studi lapangan.Hasil penelitian menujukan bahwa secara simultan pengembangan Sumber Daya Manusia berpengaruh terhadap Kinerja Pegawai di Sekretariat Badan Koordinasi Promosi dan Penanaman Modal Daerah Provinsi Jawa Barat, dalam hal ini variabel Sumber Daya Manusia merupakan variabel yang sangat penting untuk memecahkan masalah kinerja yang meliputi kualitas kerja, kuantitas kerja, keandalan dan sikap yang dilakukan dalam penyelesaian kerja dari pegawai pada Sekretariat Badan Koordinasi Promosi dan Penanaman Modal Daerah Provinsi Jawa Barat Namun masih ada variabel lain yang
Guidelines for Developing an Appropriate General English Material for Higher Students: A Perspective
Authors: Yuniarti Yuti
Published: September 2021

English lesson is one of compulsory subject in the first semester of higher students that only two credits for sixteen meetings including midterm and final test.In the other hand most of the teacher are bound by a mandated curriculum defining the content, skills and values to be taught. Whether expected at school or state level, a curriculum outlines the goals and objectives for the students and the course of study.

The study is expected to give a valuable contribution and improvement of the English teaching at the research site in designing an appropriate materials for higher students.
Banking Business Performance Evaluation Using Standard Model of Quality Management Europe – EFQM (European Foundation for Quality Management): Case Study in Bank Bjb (Jabar-Banten) Tbk.
Authors: Soedarso Sri Widodo
Published: September 2021

This is paper research case study to examine application evaluating and measuring business performance banking company using concept International Quality Standard of Excellences Model European Foundation for Quality Management (EFQM - 2013) with ten (10) variables: Case study in Bank Jabar Banten Indonesia (PT. Bank Bjb Tbk). The study examines the organization productivies, effectiveness and efficiencies, and the level of company performance comply with role and regulation of banking authority. The variance was explained by extraction factor sums squared loadings of the information yielded in business performance of firms. The main of findings showed that all the two (2) variables i.e. Leadership and Partnership Resources are less influence the business performance of PT. Bank Bjb Tbk. The novelty of this research study are the understanding the excellent level of capability of  business performance firms; realized the actual quality practices have significant positive effect towards business performance banking ; including the necessary improvements to be carried-out by the companies involved.
Pengembangan Masyarakat Desa Melalui Pendekatan Good Democratic Governance Di Desa Pattallassang Kecamatan Pattallassang Kabupaten Gowa
Authors: Fatmawati Fatmawati
Published: September 2021

Berdasarkan Peraturan Menteri Dalam Negeri No. 114 Tahun 2014 tentang pedoman pembangunan desa, maka penelitian ini bertujuan untuk mengetahui Pengembangan Masyarakat Melalui Pendekatan Good Democratic Governance Di Desa Pattallassang Kecamatan Pattallassang Kabupaten Gowa. Jenis penelitian dan tipe yang digunakan dalam penelitian ini adalah penelitian deskripsi dengan metode kualitatif. Informan dalam penelitian adalah Kepala Desa, Staf Desa dan Tokoh Masyarakat. Teknik pengumpulan data dalam penelitian ini adalah observasi, wawancara dan dokumentasi. Hasil penelitian ini dapat disimpulkan bahwa komitmen yang berkesinambungan oleh pemerintah Desa Pattallassang dalam peningkatan kualitas kehidupan masyarakat desa dilakukan secara berkala, sesuai dengan kemampuan manajerial dan anggaran pemerintah desa setiap tahunnya. Focus pengembangan masyarakat adalah pada program pemberdayaan, pastisipasi dan peningkatan kapasitas masyarakat. Alternatif pendekatan yang dapat dijadikan rujukan untuk pengembangan masyarakat adalah pendekatan good democratic governance yang memiliki prinsip : 1) partisipasi, representasi, perilaku pemilihan yang adil, 2) daya tanggap, 3) efisiensi dan efektivitas, 4) transparansi, 5) aturan hukum, 6) perilaku etis, 7) kompetensi dan kapasitas, 8) inovasi, 9) berorientasi jangka panjang, 10) manajemen keuangan yang baik, 11) hak asasi manusia, keanekaragaman budaya dan kohesi sosial, dan 12) akuntabilitas.
Manajemen Pengembangan Kinerja Sumber Daya Manusia Melalui Usulan Masyarakat Desa Cibiru Hilir
Authors: Sofyan Meti Mediyastuti , Febriyanti Feny , Maulani Erni , Kamelia Kamelia
Published: September 2021

Penelitian ini bertujuan untuk menganalisis mengenai program pengembangan Sumber Daya Manusia serta pengaruh terhadap kinerja aparatur di Desa. Pengembangan Sumber Daya Manusia pada dasarnya merupakan peningkatan kinerja karyawan yang mencerminkan tenaga kerja dalam bekerja yang dimana kinerja aparat pemerinrah desa dinilai dan diukur menurut kriteria yang sudah ditentukan dalam peraturan perundang-undangan. Dalam sebuah organisasi pengembangan Sumber Daya Manusia merupakan bentuk usaha pengembangan yang bersifat integral, baik yang menyangkut Sumber Daya Manusia sebagai individu dan sebagai sistem. Dalam pengembangan Sumber Daya Manusia ini tentu dilakukan secara terencana dan berkesinambungan untuk meningkatkan kompetensi pegawai dan kinerja organisasi melalui program pelatihan, pendidikan, dan pengembangan. Penelitian ini merupakan jenis penelitian deskriptif dengan pendekatan kualitatif yang menggunakan metode studi kasus, dimana data diperoleh melalui observasi dan wawancara. Adapun hasil dari penelitian ini yaitu Sumber Daya Manusia yang terdapat di Desa Cibiru Hilir memiliki pengaruh terhadap kinerja; program yang dilaksanakan dalam pengembangan Sumber Daya Manusia merupakan aspirasi dari masyarakat sekitar; pendidikan dan pelatihan sangat diperlukan untuk pengembangan Sumber Daya Manusia karena dapar meningkarkan kinerja daripada Sumber Daya Manusia tersebut.
IMPLEMENTASI ARTIFICIAL INTELLIGENCE (AI) DI BIDANG ADMINISTRASI PUBLIK PADA ERA REVOLUSI INDUSTRI 4.0
Authors: Supriyadi Endang Irawan , Asih Dianing Banyu
Published: September 2021

Revolusi industri 4.0 merupakan perkembangan keempat dari revolusi industri, pada revolusi industri keempat ini banyak penemuan teknologi baru yang belum pernah ditemukan pada era revolusi sebelumnya, sepereti Internet of Thing (IOT), percetakan 3D, big data, dan artificial intelligence. Artificial intelligence merupakan salah satu produk revolusi industri 4.0 yang perkembangan dan pemanfaatannya telah banyak digunakan dalam kehidupan sehari-hari dan pada banyak sektor bidang. Artificial intellegence digunakan untuk meningkatkan pelayanan publik melalui penyediaan aplikasi berbasis teknologi di bidang administrasi publik. Tulisan ini akan mengkaji tentang sejauh mana implementasi artificial intelligence pada bidang administrasi publik, dampak yang timbul dari penerapan artificial intelligence pada bidang administrasi publik serta kesiapan sumber daya manusia(SDM) pemerintahan dalam penerapan artificial intelligence.
PERGESERAN DALAM PARADIGMA ILMU ADMINISTRASI PUBLIK
Authors: Supriyadi Endang Irawan
Published: September 2021

Administrasi Publik mengalami perkembangan pesat hingga saat ini. Penegelolaan Negara yang tidak sesuai harapan masyarakat dan dianggap gagal menjadi ide awal administrasi publik mengalami pergeseran paradigma. Pergeseran tersebut akibat adanya ketidakpuasan dengan paradigma sebelumnya yang dianggap tidak sesuai dalam pengelolaan negara. Penelitian ini bertujuan untuk mengetahui Bagaimana Pergeseran Paradigma Dalam Ilmu Administrasi Publik. Penelitian yang dilaksanakan menggunakan pendekatan Deskriptif kualitatif bersifat studi pustaka. Pergeseran Paradigma atau perubahan paradigma mulai dari Old Public Administration (OPA) dengan fokus administrasi publik berkenaan dengan efisien, ekonomis dalam memberikan pelayanan. New Public Administration (NPA) dengan fokus selain pada efisiensi dan ekonomis dalam pemberin pelayanan juga mengedepankan keadilan sosial. New Public Management (NPM) yang ditandai dengan adanya reinventing government  dengn focus privatisasi dalm pengelolaan Negara dengan menempatkan masyarakat sebagai pelanggan dan New Public Service (NPS) fokus pada pelayanan masyarakat yang menempatkan masyarakat bukan sebgai pelanggan tapi sebagai warga negara yang harus dilayani oleh Negara.
EFFECT OF CELLULOSE FIBER SURFACE TREATMENT TO REPLACE CARBON BLACK IN NATURAL RUBBER HYBRID COMPOSITES
Authors: Kazemi Hossein , Mighri Frej , Park Keun Wan , Frikha Slim , Rodrigue Denis
Published: September 2021

In recent years, cellulose fibers have attracted considerable attention as biofillers for natural rubber (NR) composites. However, neat cellulose cannot be used as a substitute for conventional fillers due to its poor compatibility with NR. Therefore, a new surface treatment via maleic anhydride grafted to polyisoprene (MAPI) in solution was developed to improve the filler–matrix interaction. Different contents of carbon black (CB) and cellulose fibers (before and after modification) were used as a hybrid filler system to investigate the possibility of CB substitution in NR composites. First, contact angle, Fourier transformed infrared spectrometry (FTIR), and scanning electron microscopy (SEM) techniques were used to confirm the successful cellulose surface treatment. Second, morphological analysis, Payne effect, and swelling behavior of the rubber compounds in toluene confirmed the effect of cellulose treatment on improving the interfacial filler–matrix adhesion. Finally, the results showed that the composite filled with 20 phr modified cellulose and 20 phr CB (50% replacement of CB) exhibited even better results than the composite filled with 40 phr of CB, since the tensile strength was only 7% lower, but the elongation at break, tensile modulus at 100%, and storage modulus at 25 °C were respectively 35%, 24%, and 22% higher.
The Relationship Between CO2 Emissions and Economic Growth in Turkey
Authors: Özden Rumeysa , Akansu selahattin orhan , Albayrak Çeper Bilge , Kahraman Nafiz
Published: September 2021

The relationship between environmental pollution and economic growth has recently been the focus of discussion between policy makers and scientists around the world. The relationship between environmental pollution and economic growth has recently been the focus of discussion between policy makers and scientists around the world. In order to meet human needs, energy is needed in the activities to be carried out and the demand for this energy has increased exponentially over the years. Today, energy is produced from two sources: fossil fuels and renewable resources. Turkey renewable energy resources, particularly hydropower, wind energy, solar energy and are a country with significant potential for geothermal energy sources. Compared to fossil fuels, the carbon emissions from renewable energy sources are low. CO2 emissions from the use of fossil fuels vary depending on the type of fossil fuel used. In this study, the energy sector between Turkey's 1990-2016year, agricultural activities and carbon emissions per person from industrial processes and the per capita change in the manufacturing sector with the relationship between GDP energy imports, health care costs have been analysed.
“Ser dueño”: Criterio de la familia Kukama
Authors: Berjón Martínez Manuel Μ. , Cadenas Cardo Miguel Ángel
Published: September 2021

El presente artículo explora el término familia en el pueblo indígena kukama de la Amazonia peruana. La sangre es el gran vehículo que cohesiona a las familias. Son los padres los que transmiten la sangre a sus hijos, siendo los hijos fruto de su padre. Su madre no es su sangre, es fruto de su padre. La vida se concibe en pareja. Con la aparición de varios hijos los padres hacen su casa propia. A los niños se les educa para que desde muy tiernos posean esta determinación propia. La incorporación a los mercados y la introducción del dinero genera adaptaciones de las familias a las nuevas situaciones. En el trasfondo se percibe la actuación del Estado que favorece a las compañías petroleras sin tener en cuenta las consecuencias que padecen los pueblos indígenas, siendo estos impactos determinantes en su configuración actual.