bluuebunny/crossref_metadata_2025 huggingface dataset:
Fluid-rock interactions and amphibolitisation of the lower continental crust (The Kråkenes Gabbro, Western Gneiss Region, Norway)
Authors: Bläsing Saskia , John Timm , Vrijmoed Johannes C. , Henehan Michael J. , Frick Daniel A.
Published: March 2022

To understand numerous geological processes, like element recycling or plate dynamics, the quantification of fluid-induced reactions in the Earth’s crust and mantle is an important but challenging subject, especially for short-lived events including substantial mass exchange. Lithium can serve as a powerful tool to quantify timing and fluid-flow mechanisms that happen on short geological timescales, because it is a very fast diffusing element and usually appears as a trace element in both fluid and rock.

The Kråkenes Gabbro is part of a fossil continent-continent collision zone, located in the Western Gneiss Region in Norway, and shows the effects of fluid-rock interaction perfectly.  The low permeability gabbro is cross-cut by strictly N-S-trending fractures, which opened during exhumation, serving as a pathway for an aqueous fluid to infiltrate the rock. Metasomatism occurred under amphibolite-facies conditions, resulting in a sharp amphibolite-generating reaction front propagating on dm-scale into the magmatic gabbro. This reaction is driven by strong chemical gradients between the reactive fluid and the dry, metastable gabbro. Samples were taken as continuous profiles (~ 30 cm length) perpendicular to the vein and analyzed using a) SEM automated quantitative mineralogy mapping to quantify evolving mineral assemblages during amphibolite-facies metamorphism and b) MC ICP-MS to determine variations in bulk rock lithium concentrations and isotope compositions along the profile.

To understand fluid-flow mechanisms, reactive flow-based diffusion models were created, and model accuracy was checked by integrating measured mineral and lithium data. Mass balance calculations and recalculations of the gabbro and amphibolite mineral assemblages give information on the fluid composition and its transported elements, showing that the fluid-induced reaction is not diffusion-limited only. Furthermore, these models portray the evolving reaction front and the evolution of physical parameters such as mineral assemblage, density or porosity within it. Our investigations into lithium concentrations and δ7Li values show that lithium is transported by the fluid into the formerly almost dry system and thus propagated into the gabbro. Reaction-induced variations in e.g. porosity and partition coefficients are included into lithium-diffusion models to find the minimum misfit between measured and modelled lithium data to estimate the duration of the fluid-induced reaction.
Radiation belt model including semi-annual variation and Solar driving (SENTINEL)
Authors: Aminalragia-Giamini Sigiava , Katsavrias Christos , Papadimitriou Constantinos , Daglis Ioannis , Sandberg Ingmar , Jiggens Piers
Published: March 2022

The Earth’s outer radiation belt response to geospace disturbances is extremely variable spanning from a few hours to several months. In addition, the numerous physical mechanisms, which control this response, depend on the electron energy, the time-scale and the types of geospace disturbances. As a consequence, the various models that currently exist are either specialized, orbit-specific data-driven models, or sophisticated physics-based ones. In this paper we present a new approach for radiation belt modelling using Machine Learning methods driven solely by solar wind speed and pressure, Solar flux at 10.7 cm and the Russell-McPherron angle. We use Van Allen Probes data to train our model and show that it can successfully reproduce and predict the electron fluxes of the outer radiation belt in a broad energy (0.033–4.062 MeV) and L-shell (2.5–5.9) range and, moreover, it can capture the long-term modulation of the semi-annual variation. We also present validation studies of the model’s performance using data from other missions which are outside the spatio-temporal training regime such as the E>0.8 MeV electron flux measurements from GOES-15/EPEAD at geostationary orbit.

This work has received funding from the European Union’s Horizon 2020 research and innovation programme "SafeSpace" under grant agreement No 870437 and from the European Space Agency under the "European Contribution to International Radiation Environment Near Earth (IRENE) Modelling System" activity under ESA Contract No 4000127282/19/NL/IB/gg.
Nitrate flux monitoring in small headwater catchments in the German low mountain range –  Threshold exceedance during baseflow and snowmelt.
Authors: Ditzel Lukas , Spill Caroline , Gaßmann Matthias
Published: March 2022

Nitrate is one of the key parameters for the assessment of water quality, since an excess of NO3 in drinking water can lead to health risks, especially for young children. The purpose of our study was not only to detect occasionally exceedances of the water quality standards, but also to monitor the temporal highly resolved behavior of NO3 concentrations in the stream water over a one year period. To reach this goal we picked the small headwater catchment of the Nesselbach, located at Grebenstein in the North-Hessian low-mountain-ranges as our study area. We installed a UV-ViS-probe (s::can spectro::lyser), capable of detecting small quantities of nitrate with a 5 minutes resolution and added an automatic sampler to collect samples for lab calibration. Additionally, we installed discharge measurement in the stream and collected event-based samples of stable water isotopes with the installed automated samplers. The stable water isotopes are used to perform hydrograph separation for differentiation between event-water and baseflow, and therefore to gain deeper insights into the hydrology of the Nesselbach catchment.  

The sampling results show that the E.U. environmental quality standard of 50 mg/l NO3 is almost always exceeded during baseflow in the Nesselbach. Rain-event driven discharge dilutes the baseflow strong enough to reduce the concentrations below the threshold for a short time span, but snowmelt shows the opposite behavior, increasing the NO3 concentrations in the discharge over a longer period of time. While headwater catchments are often considered to be of good water quality in comparison to the much bigger catchments downstream, our findings suggest, that in catchments with agricultural landuse even the headwaters lag a good water quality and exceed the E.U. environmental quality standards for NO3. This first evaluation of the data of our study points to the relevance of monitoring NO3 concentrations in the baseflow. Because headwater catchments are often used for the extraction of drinking water and cattle watering, it could be necessary to expand the monitoring of NO3 to a higher number of headwater catchments.
Space-time statistics of extreme ocean waves in crossing sea conditions during a tropical cyclone
Authors: Davison Silvio , Benetazzo Alvise , Barbariol Francesco , Ducrozet Guillaume
Published: March 2022

In recent years, the study of extreme ocean waves has gained considerable interest and several theoretical approaches have been developed for their statistical prediction. However, a full understanding of the main mechanisms responsible for the occurrence of extreme waves has not yet been reached in the relatively common case of a crossing sea, where a local wind sea system coexists with a system of swell. In this context, we investigate how the space-time extreme-value statistics of realistic crossing sea states differs from the statistics of the corresponding short-crested wind sea and long-crested swell partitions during tropical cyclone Kong Rey (2018) in the Northwestern Pacific Ocean (Yellow Sea and East China Sea). The investigation is carried out using an ensemble of numerical simulations obtained from a phase-resolving wave model based on the high-order spectral method (HOSM) and focuses on the maximum sea surface elevation (crest height). The reliability of the numerical model outputs has been assessed with space-time measurements of the 3D sea surface elevation field collected from a fixed offshore platform in the area of interest. Our results highlight the different roles that linear and nonlinear effects have in the formation of extreme waves for different combinations of wind sea and swell systems.
Carbon and Greenhouse gas dynamics at an industrial cutaway peatland
Authors: Ingle Ruchita , Saunders Matthew
Published: March 2022

Worldwide, peatlands are estimated to store around 30% of soil organic carbon on only 3% of the land area. In Ireland, these numbers increase with peatlands covering ~20% of the land area and storing up to 75% of the terrestrial soil organic carbon. However, a large proportion (≥90%) of these ecosystems have been degraded through drainage for agriculture, forestry, horticulture and extraction for energy. With the increase in global initiatives for the conservation, rehabilitation and sustainable management of peatland, further investigation of the effect of drainage and rehabilitation is needed to better understand the carbon and greenhouse gas (GHG) dynamics of these ecosystems. Additionally, it is crucial to understand the natural adaptive capacity of the ecosystem to further inform effective rehabilitation strategies. This study investigated the carbon dioxide (CO2) and methane (CH4) fluxes from a former industrial peat extraction site in Ireland, prior to rehabilitation using static chamber techniques.  The site is an overall source of CO2, releasing a cumulative annual flux of 9 g C-CO2 m-2 y-1 for 2020-2021 and a small source of methane, releasing an average annual cumulative total of 1 g C-CH4 m-2 y-1.  

This research highlights the potential emissions savings that can be made through rehabilitation as water tables increase with rewetting and these sites become re-vegetated. However, long-term measurements to track the temporal dynamics of C/GHG emissions post-rehabilitation are required to fully assess the climate mitigation of this approach, particularly in light of a changing climate which might further influence the ecological, hydrological, and biogeochemical functions of these important ecosystems.

 
Matrix gas flow through “impermeable” rocks – shales and tight sandstone
Authors: Rutter Ernest , Mecklenburgh Julian , Bashir Yusuf
Published: March 2022

Abstract. The effective pressure sensitivity of gas flow through two shales
(Bowland and Haynesville shales) and a tight gas sandstone (Pennant
sandstone) was measured over the typical range of reservoir pressure
conditions. These are low-permeability rocks such as can be exploited as
cap rocks above reservoirs that might be developed to store compressed air,
methane, or hydrogen or to bury waste carbon dioxide, all of which may become
important components of the forthcoming major changes in methods of energy
generation and storage. Knowledge of the petrophysical properties of such
tight rocks will be of great importance in such developments. All three
rocks display only a small range in log10 permeability at low
pressures, but these decrease at dramatically different rates with
increasing effective pressure, and the rate of decrease itself decreases
with pressure, as the rocks stiffen. The pressure sensitivity of the bulk
moduli of each of these rocks was also measured and used to formulate a
description of the permeability decrease in terms of the progressive closure
of narrow, crack-like pores with increasing pressure. In the case of the
shales in particular, only a very small proportion of the total porosity
takes part in the flow of gases, particularly along the bedding layering.
Parked and operating load analysis in the aerodynamic design of multi-megawatt-scale floating vertical-axis wind turbines
Authors: Sakib Mohammad Sadman , Griffith D. Todd
Published: March 2022

Abstract. A good understanding of aerodynamic loading is essential in the design of vertical-axis wind turbines (VAWTs) to properly capture design loads and to estimate the power production. This paper presents a comprehensive aerodynamic design study for a 5 MW Darrieus offshore VAWT in the context of multi-megawatt floating VAWTs. This study systematically analyzes the effect of different, important design variables including the number of blades, aspect ratio and blade tapering in a comprehensive load analysis of both the parked and operating aerodynamic loads including turbine power performance analysis. The number of blades is studied for two- and three-bladed turbines, aspect ratio is defined as ratio of rotor height and rotor diameter and studied for values from 0.5 to 1.5, and blade tapering is applied by means of adding solidity to the blades towards blade root ends, which affects aerodynamic and structural performance. Analyses were carried out using a three-dimensional vortex model named CACTUS (Code for Axial and Cross-flow TUrbine Simulation) to evaluate both instantaneous azimuthal parameters as well as integral parameters, such as loads (thrust force, lateral force and torque loading) and power. Parked loading is a major concern for VAWTs; thus, this work presents a broad evaluation of parked loads for the design variables noted above. This study also illustrates that during the operation of a turbine, lateral loads are on par with thrust loads, which will significantly affect the structural sizing of rotor and platform and mooring components.
Book Review: Preventing Dementia? Critical Perspectives on a New Paradigm of Preparing for Old Age
Authors: Vana Noa
Published: March 2022

n/a
Fish availability and marketing system at Ashuganj Upazila, Brahmanbaria, Bangladesh
Authors: SAFIULLAH MD. , ISLAM MD. JAHIDUL , FAGUN IFTEKHAR AHMED
Published: March 2022

The research was conducted to identify the fish availability and fish marketing system in different markets of Ashuganj upazila under Brahmanbaria district. Data were collected from fish retailers, wholesalers and consumers of  three different markets namely Ashuganj Bazar, Ferryghat Bazar and Khariyala Bazar through individual interviews and focus group discussion. The maximum 19 species were found in Ashuganj Bazar while 16 species were found in Ferryghat Bazar and 14 species were found in Khariyala Bazar. The species composition included 36% Catfishes, 15.33% SIS, 11.33% Ilish, 6.66% Thai pangas, 6% Prawn and Shrimp, 6% Marine fish, 6% Carps, 5% Tilapia and 2.33% Thai koi.  The daily average gross profit of fish retailers in Ashuganj Bazar, Ferryghat Bazar and Khariyala Bazar were estimated as Tk. 550/day, Tk. 500/day and Tk. 480/day respectively. The results showed that 62% of the retailers have improved their socio-economic condition through fish selling. A number of constraints such as lack of storage facilities, poor supply of ice, exploitation by middleman, lack of money and lack of infrastructure were reported by the retailers.
First record of the family Plesiopidae in the Bay of Bengal, Bangladesh coast
Authors: MIA MD RASEL , ISLAM MD JAYEDUL
Published: March 2022

The family Plesiopidae is reported for the first time from the marine waters of Saint Martin’s Island, Bay of Bengal Bangladesh coast based on the record of the species Plesiops coralicora (Bleeker, 1853). The findings added a new distributional range for this kingfish (roundhead family) from Northern Bay of Bengal and an important addition of ichthyofauna to marine fishes of Bangladesh.
A Critical Analysis of Gender Roles in Marriage in Igbo African Ontology
Authors: Ebo Socrates
Published: March 2022

Marriage among Ndigbo is a powerful institution in which the two genders involved have their respective culturally designated roles. These roles are usually not left to individual fancies because there are strong taboos regarding defaults. The woman must perform her own roles. The man must perform his own roles. It is in performing these roles that the couple fulfill their identity as husband and wife. For both genders, marriage is not just a conjugal union but an essential social requirement to be fulfilled before admission into the society’s rank of respectable adulthood as a man or a woman. The Igbo marriage is basically between a man and a woman or many women, although there are interesting but rare exceptions. The Igbo marriage system shows a complementarity of roles with the male gender clearly dominating. But the Igbo marriage system also provides strong safeguards for women. This makes the Igbo marriage stronger. The marriage is not a singular event but a series of events with carefully laid down procedures. It is a communal act also. Among Ndigbo, marriage is more of a social responsibility than an individual’s conjugal fancy. This work x-rays the traditional Igbo marriage, analyzing and portraying it in philosophical perspectives as it relates to the genders.
A Prototype of Phase Lock Loop System on Communication Device for Motorcycle Riders
Authors: Silalahi Lukman Medriavin
Published: March 2022

In recent years, technology has developed rapidly, particularly technology in The telecommunication sector. As the electronic sector has been developing, as well as the increasing number of motorcycle riders and its communities, the authors are interested in designing an assistive device for motorcycle drivers. This device is designed as an additional communication tool for the coordination between the drivers. For communication, it is necessary to create a communication system without interfering with other riders. Therefore, the authors are motivated to design " a prototype of a phase lock loop system on a communication device for motorcycle riders". Using radio frequency as a media, this device aid motorcycle riders to communicate with each other. In this research, the authors design and implement the prototype regarding its ability to receive communication through helmet having a lock loop phase system. The main aim of the research is creating a device that can be used as an alternative communication device for motorcycle riders which is economical and provide convenient communication and coordination between riders without causing any disturbances and hazards.

Keywords: Radio Frequency, Transmitter Block, Receiver Block, Communication, PLL System.
SIKAP MAHASISWA DALAM MENGGUNAKAN INTERNET SEBAGAI MEDIA BELAJAR
Authors: Alamsyah Aam , Harjono Supangat
Published: March 2022

Penelitian ini dimaksudkan untuk menganalisa sikap sejumlah mahasiswa terhadap penggunaan internet sebagai media belajar mandiri selama masa pandemi. Responden yang diteliti merupakan mahasiswa aktif semester dua dari sebuah universitas swasta di Tangerang. Sebagaimana kajian sikap pada umumnya, penelitian ini dimaksudkan untuk mengetahui kecenderungan tindakan para mahasiswa tersebut dalam memanfaatkan media internet untuk mendukung kegiatan belajar mandirinya.

Metode penelitian yang digunakan adalah metode campuran. Dengan metode ini, responden diberikan angket terlebih dahulu untuk dijawab dan dilanjutkan dengan kegiatan wawancara singkat pada responden yang ditunjuk secara acak. Pemilihan responden untuk diwawancara didasarkan pada keterkaitan dan pentingnya jawaban yang diberikan dalam mendukung temuan penelitian ini. Semua kegiatan dilakukan dengan mengikuti protokol menjaga jarak yang diterapkan oleh pemerintah. Oleh karena itu, penyebaran angket dilakukan melalui media google form yang dilanjutkan dengan sesi wawancara textual melalui media WA.

Hasi penelitian menunjukkan bahwa pada dasarnya para mahasiswa memiliki sikap negatif terhadap proses pembelajaran melalui internet. Walau mengganggap internet sebagai media yang penting, mereka cenderung menganggap bahwa proses belajar melalui internet dianggap lebih sulit daripada proses belajar biasa. Secara keseluruhan mahasiswa juga menganggap bahwa proses pembelajaran tatap muka lebih diminati karena dapat membantu mereka memahami materi-materi yang sifatnya lebih rumit. Temuan juga menunjukkan bahwa peran dosen tidak dapat digantikan oleh media internet. Terlepas dari manfaat internet dalam memberikan sumber-sumber belajar yang cukup menarik, para mahasiswa tetap berkeyakinan bahwa peran dosen sangatlah penting dalam menunjang motivasi dan kepercayaan diri mereka. Tema-tema wawancara menegaskan bahwa mereka masih tetap bertanya pada dosen ketika mereka telah selesai menyelesaikan tugas, meminta konfirmasi tentang prosedur pengerjaan tugas, ataupun mengungkapkan permasalahan yang dihadapi seputar kegiatan belajar mandiri mereka.

Keywords: Sikap, Mahasiswa, Menggunakan, Internet, Media Belajar
Sustainable Livelihood Strategies of Fishing Communities in Marine Protected Area (MPA), Sabah, Malaysia
Authors: Shah Jalihah Md , Uddin Md Sayed , Hussin Rosazman , Mohd Hamdan Diana Demiyah Binti , Ibrahim Dzurizah , Ag Ijuwan Norina Natasha Binti
Published: March 2022

Marine Protected Areas (MPA) are an important management tool adopted by most the nations for conservation of marine and ﬁsheries to save marine ecosystems that are in danger of being overexploited. Malaysia is no exception as coastal regions of Malaysia is prospective for fisheries and many others development activities. The MPAs have an immense impact on people’s livelihood. This study aims to understand the livelihoods of the fishing community in MPAs, Marudu Bay, Sabah, Malaysia. It is guided by the Sustainable Livelihoods Framework (SLF) to analyze the indicators of sustainable livelihood capitals and strategies of the MPAs fishing communities. This study uses a qualitative approach. In-depth interviews with five informants were chosen for the data collection using the purposive sampling technique. According to the findings, the informant’s human capital, such as education, health, leadership, skills, and training, has not yet reached a level that could offer a reasonable standard of living and livelihood for the research site's population. Residents of the study sites do not have many options for increasing their household income level. In many locations, fishing is a less appealing occupation. The study provided recommendations and strategies on how to further develop and sustain the livelihood of the fisheries community in MPAs, Sabah.
The Physical Health, Mental Health and Well-Being Benefits of the Nia Technique
Authors: List Robin , Laser Julie Anne
Published: March 2022

This article presents the first evidence-based research study to analyze the physical health benefits, mental health benefits, and well-being benefits of the Nia TechniqueⓇ, an experiential movement therapy, on class participants. The aim of the research project was to capture the thoughts of Nia participants immediately after their class experience to best understand Nia’s physical health benefits, mental health benefits, and well-being benefits both quantitatively and qualitatively. The sample collected was a total of 56 healthy adults voluntarily attending Nia classes at 5 different, local YMCA facilities or private studios geographically located near a large city in the mountain west. The results showed that Nia had a positive effect on the health and well-being of almost all participants. Overall, 98% of participants agreed or strongly agreed they felt better in their physical body after participating in Nia. All participants (100%) agreed or strongly agreed their mood improved at the conclusion of participating in Nia. Almost all participants (96%) agreed or strongly agreed they creatively expressed their unique selves during class. All participants (100%) agreed or strongly agreed they released stress during class. Most participants (89%) agreed or strongly agreed they connected with at least one other person during class. The vast majority, 69.3% of participants reported using Nia class skills in their daily life between classes. A larger, more diverse sample size post COVID would be beneficial to further illuminate the benefits of Nia.
COVID-19 Pandemisinin BIST Ulaştırma Endeksi’ndeki Şirketler Üzerindeki Etkilerine Yönelik Bir Araştırma
Authors: ŞEKER Yasin , ATASEL Oğuz Yusuf
Published: March 2022

Ülke ekonomileri için lojistik ve ulaştırma sektörü hiç şüphesiz yüksek katma değer yaratan sektörlerdendir. COVID-19 pandemisinden en çok etkilen sektörlerden birisi de ulaştırma sektörüdür. Bu çalışmada COVID-19’un BIST Ulaştırma Endeksi’ndeki (XULAS) lojistik ve ulaştırma şirketlerinin hisse senedi fiyatlarına, finansal tablo kalemlerine ve piyasa değerlerine etkisi araştırılmıştır. Elde edilen sonuçlara göre bir önceki yıla kıyasla 2020 yılında finansal tablo kalemleri en fazla etkilenen şirketler THYAO, DOCO, PGSUS ve CLEBI olurken; piyasa değeri en fazla etikilenen şirketler ise THYAO ve PGSUS olmuştur. Çalışma kapsamında COVID-19’un söz konusu endeksteki ilgili şirketlerin hisse senedi fiyatlarına etkisi ise örnek olay yöntemi ile incelenmiştir. Olay pencereleri, COVID 19 salgınının pandemi olarak ilan edildiği 11 Mart 2020 tarihi baz alınarak “-15, +15”, “-5, +5”, “-1, +1”, “0, +5” “ve “0, +15” olarak belirlenmiştir. Çalışmanın sonucunda olay pencerelerinde 8 şirketin hisse senedi fiyatlarında istatistiksel olarak anlamlı ve negatif CAAR değerleri tespit edilmiştir. [-15,15] olay penceresinde en fazla negatif etkilenen %87,61 CAAR değeriyle DOCO ve %58,91 CAAR değeriyle PGSUS şirketleri olmuştur.
Müşteri İlişkileri Yönetiminin Online Alışveriş Üzerine Etkisi: Giyilebilir Teknoloji Ürünleri Üzerine Nitel Bir Araştırma
Authors: YÜCEL Engin
Published: March 2022

Son yıllarda küreselleşme ve rekabetin hızla artmasıyla birlikte işletmeler ve tüketiciler arasında uzun vadeli ilişkilerin yaratılması gerekliliği ortaya çıkmıştır. Bununla birlikte, elektronik ticaretin hızlı büyümesi ve internet tabanlı hizmetlerin yaygınlaşması yeni bir kavram olan e-MİY’i doğurmuştur. Bu doğrultuda, müşteri ilişkileri yönetiminin online alışveriş üzerine etkisinin incelenmesi bu çalışmanın amacını oluşturmaktadır. Ayrıca çalışma kapsamında, tüketicilerin ürün ve hizmetlerle ilgili satıcılara yönelttiği soruların hangi konularda daha fazla ön plana çıktığının belirlenebilmesine yönelik olarak soruların kategorik olarak dağılımının ortaya koyulması amaçlanmıştır. Araştırma kapsamında toplamda 23 adet giyilebilir teknoloji ürünüyle ilgili tüketiciler tarafından satıcılara yönlendirilmiş 1.109 soru incelenmiştir. 20 farklı konu ile ilgili olarak yöneltilen soruların önemli bir bölümü herhangi bir giyilebilir teknoloji ürününün, diğer cihazlarla birlikte kullanımı veya uyumu ile ilgili olmuştur. Ürün özellikleri hakkında sorulan sorular ve farklı renk, beden ve materyal seçenekleri hakkında sorulan sorular ön plana çıkan diğer önemli konu başlıklarıdır. Online platformlar aracılığıyla müşteri ilişkileri yönetiminin gelecek yıllarda daha da önem kazanacak olması nedeniyle bu çalışmanın aynı alandaki diğer çalışmalara yol göstermesi beklenmektedir.
Die MINTaliy-Stiftung
Authors: Tscherne Michaela
Published: March 2022

Therese Niss ist leidenschaftliche Unternehmerin und war langjährige Vorsitzende der Jungen Industrie. Als Abgeordnete zum Nationalrat ist sie unter anderem mit den Themenbereichen Forschung, Innovation und Digitalisierung betraut. Über das Familienunternehmen in der Technikbranche kennt sie die Probleme, wie den Fachkräftemangel und einen niedrigen Frauenanteil im MINT-Bereich, aus erster Hand. Zudem hat sie als Mutter zweier Töchter durchaus auch persönliche Motive. Für das geringe MINT-Interesse bei Mädchen macht sie stereotype Rollenbilder verantwortlich und möchte dazu beitragen, diese abzubauen. Hierfür hat sie gemeinsam mit neun Unternehmen, der Industriellenvereinigung, der Wirtschaftskammer sowie der Innovationsstiftung für Bildung die MINTality-Stiftung gründet. Ziel der Stiftung ist die Förderung des MINT-Interesses bei Mädchen. Dies will sie unter anderem über verschiedene Initiativen sowie über Lehrer*innen- und Erwachsenenfortbildung bewerkstelligen.
Unter dem ,Digitat‘ des Fortschritts?
Authors: Schweiger Christina
Published: March 2022

Der digitale Wandel hat auch auf die Schule große Auswirkungen. Im Beitrag wird das anhand des Kunstunterrichts gezeigt. Für die rezeptive Praxis bedeutet das neben dem Einsatz digitaler Lehrmaterialien wie Digitalisate von Kunstwerken auch Bezugnahmen auf aktuelle Entwicklungen in der Kunstwelt wie beispielsweise den Hype um NFTs (Non-Fungible Tokens, nicht austauschbare digitale Dateneinheiten). Auf beides wird eingegangen und ausgeführt, dass Digitalität und Virtualität den Abgleich mit der physischen Realität verlangen. Deshalb ist es wichtig, im Kunstunterricht nicht nur die Betrachtung von digitalen Reproduktionen, sondern auch die direkte Begegnung mit Originalen zu ermöglichen.
Host-mediated dispersal shapes spatial distribution of genetic variability in marine symbionts
Authors: Pagán J Andrés , Xavier Raquel , Sikkel Paul C , Veríssimo Ana
Published: March 2022

Assessing the importance of intrinsic and extrinsic factors that shape the spatial distribution of genetic diversity of symbionts has been a topic of debate for decades. While host-mediated dispersal is an important driver of gene flow in many terrestrial metazoan symbionts, few studies
have identified the drivers of symbiont genetic differentiation in the marine realm, where habitats are comparatively more homogeneous and long-distance dispersal is common. In the present study, we perform a meta-analysis of existing studies examining symbiont spatial genetic diversity to
determine which symbiont- and host-related traits shape the patterns of genetic differentiation of metazoan symbionts, while also considering technical aspects of each study. Specifically, we wanted to assess the influence of biological traits and/ or technical aspects in (1) detecting genetic
differentiation in marine symbionts, and (2) shaping the minimum spatial scale at which genetic differentiation was detected. By assessing genetic diversity of mtDNA markers, we found that the spatial scale at which studies are conducted was a crucial predictor of both detection of genetic
structure and scale at which differentiation of marine symbionts was detected. Symbiont-based traits did not influence genetic structure, however, host-mediated dispersal was the only biological trait that shaped genetic structure of marine symbionts by influencing the spatial distribution
at which differentiation was detected.
Elecciones de los ayuntamientos en el marco constitucional gaditano en el Perú, 1812-1814
Authors: Rebata Delgado Rocío
Published: March 2022

En este artículo analizamos los principales actos electorales regulados en la Constitución de Cádiz y en la normativa electoral gaditana. En particular, se busca diferenciar, a partir de la ciencia política moderna, los actos preelectorales, electorales y postelectorales de las elecciones de los cargos concejiles de los ayuntamientos constitucionales, así como las instituciones y actores involucrados en ellos. Asimismo, a través de algunos documentos que dejó la experiencia electoral gaditana en el Perú entre 1812 y 1814, se dará cuenta de casos de aplicación de la normativa examinada en las esferas locales de elección de cargos públicos, donde se evidenciará la cohabitación de lenguajes políticos y prácticas del antiguo y nuevo régimen.
Las reformas de reelección local en América Latina: escenarios y evidencia comparada
Authors: Došek Tomáš
Published: March 2022

En la última década, la mitad de los países latinoamericanos cambió las reglas de reelección de los cargos ejecutivos locales. Sin embargo, estas reformas han tenido diversas modalidades y han ido en diferentes direcciones hacia reglas más permisivas o más restrictivas. Pese a su importancia y su frecuencia, la literatura comparada ha dedicado escasa atención a las reformas de los sistemas electorales subnacionales. En este artículo se describen los procesos reformistas y se ofrece una clasificación de las reformas de reelección de los alcaldes con el fin de entender mejor las maneras, las estrategias y las razones de estos cambios de reglas. El trabajo muestra que las reformas pocas veces toman en cuenta la dinámica política local y a sus actores, y se ven en la mayor parte “arrastradas” por lógicas políticas nacionales.
La definición de candidato y su relación con el artículo 36-B de la Ley de Organizaciones Políticas
Authors: Alvarado Aldave Carlo
Published: March 2022

Una medida de fortalecimiento de la democracia es verificar si los aportes de campaña dirigidos a los partidos políticos provienen de fuentes prohibidas, para lo cual la ONPE realiza la verificación de ingresos, aportes y de los gastos realizados por los candidatos durante la campaña electoral. En ese sentido, una vez finalizado el proceso electoral, el primer paso es la presentación de la información por parte de los excandidatos, sin que la legislación peruana haya definido quiénes son “candidatos”; por lo que el presente artículo busca analizar quiénes serían los obligados a presentar la información financiera de campaña (en particular, durante las ERM 2018); y se presenta una propuesta de cómo aplicar las sanciones de la manera más objetiva posible.
SIFT and SURF features based classification of yoga hand mudras using machine learning techniques
Authors: Abarna S. , Rathikarani V. , Dhanalakshmi P.
Published: March 2022

Yoga is an unique spiritual discipline of self-development and self-realization that teaches us how to live our lives to the fullest. Yoga's integrative approach brings deep harmony and unwavering balance to body and mind to awaken our dormant capacity for higher consciousness, which is the true purpose of human evolution. The numerous documented physical and mental benefits of yoga have played a large part in the interest in yoga. Due to a lack of datasets and thus the necessity to identify mudra in real time, distinguishing yoga hand mudras seems to be a tough undertaking. The yoga hand mudras are used as input in the proposed study, and the two components Scale Invariant Feature Transform (SIFT) and Speeded Up Robust Features (SURF) are extracted, followed by classification utilising machine learning techniques including Support Vector Machine (SVM) and Random Forest. By comparing the experimental results the performance of SIFT with SVM yields better results.
Impact of various dentinal drying methods on the adhesion of glass ionomer restorations to primary teeth
Authors: Bhalla Manish , Reddy M. Swetha , Bhalla Deepali , Reddy K. Harivinder , Reddy M. Ajay
Published: March 2022

Background: Air drying is considered the most simple and effective method to achieve solvent evaporation. The present study was conducted to assess Impact of various dentinal drying methods on the adhesion of glass ionomer restorations to primary teeth. Materials & Methods: 90 primary teeth of both genders were grounded to a flat dentinal surface. Specimens were randomly divided into three groups. Group I were subjected to air dry, group II to blot dry, and group III to suction dry. Each group comprised of 30 teeth. 10 specimens from each group were dried for 2 seconds, 5 seconds, and 10 seconds. Results: Group I teeth were subjected to air dry, group II to blot dry, and group III to suction dry. Each group comprised of 30 teeth. The mean shear bond strength at 2 seconds, 5 seconds, and 10 seconds in group I was 3.2, 5.4 and 5.3 respectively. The mean bond strength was 2.6. 3.5 and 4.6 in group II and 3.1, 4.2 and 4.0 in group III respectively. The difference was significant (P< 0.05). Conclusion: The maximum shear bond strength of the glass ionomer restoration was observed in the air?dry group.
Optimization of treatment for women with infertility
Authors: Zafarjanovna Kurbaniyazova Madina , Niyetbayevna Bekbauliyeva Gulistan , Rakhimbayevna Saparbayeva Nasiba , Tulibayevna Ruzmetova Dilfuza , Pirzhanova Ibraimova Nargisa
Published: March 2022

Annotation. Up to 20-25% of women with PCOS are resistant to clomiphene citrate. The aim of the study is to optimize the baseline ovarian response in clomiphene-resistant women to ovulation induction with minimal drug costs. Materials and methods of research: the study included 40 clomiphene-resistant women with PCOS. For women in group I, we used clomiphene citrate 100mg + human menopausal gonadotropin (HMG)37.5 IU / day. Group II received only HMG 37.5 using a low dose escalating protocol. The use of this protocol enables monofollicular growth and a decrease in the risk of multiple pregnancies and, in turn, is the prevention of ovarian hyperstimulation. The results of the study showed that in group I compared with group II, the frequency of ovulation was significantly higher (60% versus 35%). Conclusions. The combined administration of CC + HMG in clomiphene-resistant women with PCOS compared to the use of HMG alone, gives higher ovulation rates and lower financial costs.
Formulation and in-vitro evaluation of Bosewellia Serrata extract loaded transferosomal gel for treatment of osteoarthritis
Authors: Kumar Pola Kranthi , Rada Santosh Kumar
Published: March 2022

Objective: The main objective of the current research work was to formulate and evaluate Bosewellia serrata extract loaded transferosomal topical gels. To overcome the drawbacks associated with oral administration of Bosewellia serrata extract in Osteoarthritis treatment.  Methodology: Transferosomes were developed using different ratios of Phospholipon® 90G as phospholipid, Span-60 as surfactant and cholesterol as fluidity buffer. The selected best formulation of transferosomes was further optimized as a topical gel using different rate controlling polymers such as hydroxylethyl cellulose (HEC), hydroxyl propyl methylcellulose (HPMC) and, carbopol. Transcutol P was used as a penetration enhancer. In vitro diffusion studies of developed formulations were carried out using Franz diffusion cell apparatus. Results: Formulation BT10 prepared with 2:1 ratio of drug to total lipid, 2:1 ratio of surfactant to total lipid and 3:1 ratio of phospholipid to cholesterol was selected as optimized transferosomes. Further transferosomal gel was formulated by trial and error method, where different polymers considered as gelling agents. Transcutol HP and glycerol used as penetration enhancer and bodying agent respectively. Among the twelve formulations, BG11 (Carbopol 971 in 0.75% w/w) was chosen as the best formulation due to controlled invitro release of the drug with very good viscosity and spreadabilty.
Community response to implementation of the leading program for the prosperity cards in the field of education, health, ambulance and futures in Gorontalo city
Authors: Taha Marten , Tang Mahmud , Lampe Munsi , Arifin Ansar
Published: March 2022

The community always supervises the implementation of development programs and always focuses on a hope, namely the creation of economic justice and social justice. The welfare development strategy is certainly very useful, but the community as the beneficiaries of the assistance also responds in the form of support and criticism. The people who became the research informants were the recipients of the Prosperous Card assistance. Primary data obtained by observation, in-depth interviews (in-depth interviews). Secondary data comes from books and research journals published online and in print. Data analysis by transcribing the data, reading the entire data, analyzing it in detail and describing it holistically-integratively. The results of the study indicate that the Prosperous Family Card can be interpreted as a program aimed at meeting all forms of life needs, getting a positive response from the community, especially basic ones such as food, clothing, education and health care, taking into account the components in community welfare, including improvement progressively from the conditions of human life, human resource development, human-oriented, social change and adjustment.
Meningkatkan efektifitas pembelajaran praktik sistem kelistrikan power window melalui implementasi aplikasi autoplay modul interactive
Authors: Arif Syaiful
Published: March 2022

Best practice pembuatan modul interaktif sistem power window melalui aplikasi autoPlay bertujuan untuk, 1) menyusun langkah langkah pembuatan modul interaktif, 2) mengetahui hasil uji coba penerapan modul interaktif di kelas XI dan 3) mengetahui efektifitas penerapan modul interaktif mata pelajaran praktikum Kelistrikan Otomotif. Pada tahap awal dilakukan identifikasi tujuan, analisis instruksional, karakteristik siswa, spesifikasi tujuan, pengembangan tes, dan strategi pembelajaran. Kemudian dilakukan penyusunan tes, pemilihan aplikasi media, pemilihan format, dan rancangan evaluasi formatif dan installasi perangkatnya. Pada tahap uji validasi terdiri dari ahli materi, ahli media, ahli bahasa, dan praktisi serta uji coba penerapannya kepada siswa. Hasil Validasi modul ditunjukkan oleh total skor yang diperoleh dari validator ahli materi dan ahli media dengan materi yang relevan sesuai kompetensi yang harus dikuasai peserta didik. Ketepatan penggunaan ejaan, ketepatan penggunaan istilah, isi materi jelas dan sistematis, mudah di pahami, dan efektifitas modul interaktif dapat dilihat dari hasil observasi dengan kriteria sangat baik. Modul interaktif praktikum sistem power window mendapatkan respon penilaian yang sangat baik yaitu sebesar 87,38%. Begitu juga penjabaran materi, menurut responden, penjabaran materi pada modul interaktif praktikum sistem power window mendapat penilaian 81,69% dengan kriteria sangat baik. oleh karena itu, pembelajaran menggunakan modul interaktif sangat menunjang efektifitas proses belajar mengajar.
Upaya meningkatkan hasil belajar sejarah kebudayaan Islam dengan menggunakan metode role playing
Authors: Aisyah Siti
Published: March 2022

Dunia pendidikan mengalami perkembangan dalam mewujudkan generasi muda yang mampu menghadapi globalisasi. Tujuan dari penelitian ini adalah untuk mengetahui apakah  penggunaan metode Role Playing dapat meningkatkan hasil belajar sejarah kebudayaan islam pada siswa kelas V SDN SN Karang Mekar 1 Kota Banjarmasin. Metode yang digunakan dalam penelitian ini  adalah penelitian tindakan kelas (classroom action research). Hasil penelitian menunjukan dimana kondisi awal (pra siklus) siswa yang nilainya diatas Kriteria Ketuntasan Minimal (KKM) yaitu 75 sebanyak 10 siswa atau 44% dan nilai yang dibawah KKM sebanyak 13 siswa atau 56%. Pada siklus I siswa yang nilainya diatas KKM sebanyak 14 siswa atau 61% dan nilai yang dibawah KKM sebanyak 9 siswa atau 39%. Pada siklus II siswa yang nilainya diatas KKM sebanyak 19 siswa atau 83% dan nilai yang dibawah KKM sebanyak 4 siswa atau 17%. Kenaikan Hasil belajar tersebut juga dapat meningkatkan nilai rata-rata kelas. Nilai rata-rata kelas meningkat dari sebelum menggunakan metode Role Playing sebesar 72 pada siklus I menjadi 73 dan pada siklus II menjadi 81. Berdasarkan hasil penelitian yang dilakukan di SDN SN Karang Melar 1 Kecamatan Banjarmasin Timur Kota Banjarmasin, maka dapat disimpulkan bahwa penggunaan metode Role Playing dapat meningkatkan hasil belajar siswa dalam mata pelajaran PAI khususnya pada materi Sejarah Kebudayaan Islam pada siswa kelas V di SDN SN Karang Mekar 1 Kecamatan Banjarmasin Timur Kota Banjarmasin Tahun Pelajaran 2018/2019.
Peningkatan hasil belajar fisika pada materi keseimbangan benda melalui diskusi kelompok secara daring siswa kelas XI IPA-5
Authors: Yono Yono
Published: March 2022

Rendahnya hasil belajar matapelajaran fisik pada materi kesimbangan benda merupakan masalah utama dalam penelitian ini. Tujuan penelitian adalah meningkatkan hasil belajar matapelajaran fisika materi keseimbangan benda melalui diskusi kelompok secara daring siswa kelas XI IPA-5.  Metode penelitian yang digunakan adalah penelitian tindakan kelas, dengan mengikuti tahap perencanaan, tindakan, pengamatan dan refleksi. Subyek penelitian adalah siswa  kelas XI IPA-5 SMAN 1 Lumajang Jawa Timur yang terdiri dari 33 siswa. Pengumpulan data menggunakan tes tertulis, analisis data menggunakan diskriptif kuanlitatif. Hasil penelitian menunjukkan, tes awal dari 33 siswa dengan nilai lebih dari dan sama dengan KKM sejumlah 8 siswa(24%), siklus I dari 33 siswa dengan nilai lebih dari dan sama dengan KKM sejumlah 15 siswa (45%), dan siklus II dari 33 siswa dengan nilai lebih dari dan sama dengan KKM sejumlah 22 siswa(67%). Berdasarkan hasil penelitian dapat disimpulkan bahwa  penggunaan metode diskusi kelompok secara daring dapat meningkatkan hasil belajar fisika  pada materi keseimbangan benda Kelas XI IPA-5 semester ganjil tahun pelajaran 2021/2022 di SMA Negeri 1 Lumajang.
Digital Analyses of Landsat ETM+ for Identify Agroforestry System in Riau
Authors: Nasrul Besri , Idwar .
Published: March 2022

The objectives were to identify land characteristics of agroforestry system that influencing its benefit value, and to compile criteria of site specific. Location were identified by the Landsat 7 ETM+ that designed in the landuse utilization type: rubber agroforestry is identified by cyan old (RGB pixel 143,37; 173,04; 96,03) and palm oil agroforestry is identified by varying bright green-green (red-green-blue pixel 33-145; 142-253; 46-139). In each the landuse utilization type done by measurement of land characteristics, cost the inputs, and price the benefits. The maximum likelihood classification system is used for classification; the benefit value were calculated by benefit-cost ratio; the suitability criteria of site spesific were compiled by cluster analysis. The economic suitability criteria of rubber are: I (4,18-3,94); II (3,94-3,15); III (3,15-2,73); IV (2,73-2,31), the economic suitability criteria of palm oil are: I (3,30-2,72); II (2,72-2,07); III (2,07-1,38); IV (1,38-1,18), and would be base saturation, exchangeable Ca, and Mg. These criteria can be used to evaluate of suitability for the agroforestry system rubber and palm oil in Riau.
Race and Romance: Coloring the Past
Authors: Hendricks Margo
Published: March 2022

Race and Romance: Coloring the Past explores the literary and cultural genealogy of colorism, white passing, and white presenting in the romance genre. The scope of the study ranges from Heliodorus’ Aithiopika to the short novels of Aphra Behn, to the modern romance novel Forbidden by Beverly Jenkins. This analysis engages with the troublesome racecraft of “passing” and the instability of racial identity and its formation from the premodern to the present. The study also looks at the significance of white settler colonialism to early modern romance narratives. A bridge between studies of early modern romance and scholarship on twenty-first-century romance novels, this book is well-suited for those interested in the romance genre.
Ethnomedicine for earache by the tribes of Adilabad district, Andhra Pradesh, India
Authors: Swamy N. , Reddi T.V.V.
Published: March 2022

The paper deals with 20 species of plants used for ear problems by the tribes of Adilabad district, Andhra Pradesh. Neptunia oleracea and 15 practices were found to be new.
Tingkat Kepatuhan Penggunaan Obat Antidiabetes Oral pada Pasien DM di Rumah Sakit Bantuan Rampal Malang
Authors: Siwi Mayang Aditya Ayuning , Ilmanita Dzikrina , Dias Merischa Shelviana Chahyaning
Published: March 2022

Diabetes Melitus (DM) adalah kondisi kronis yang disebabkan oleh peningkatan kadar glukosa darah. Terdapat 10,70 juta penduduk Indonesia yang menderita diabetes sehingga Indonesia menduduki peringkat ke-7 dari 10 negara dengan jumlah penderita diabetes terbanyak. Pada penyakit jangka panjang seperti diabetes melitus, kepatuhan penggunaan obat menjadi salah satu penentu keberhasilan pengobatan. Penelitian ini dilakukan dengan tujuan melihat gambaran kepatuhan penggunaan obat antidiabetes oral pada pasien DM di Rumah Sakit Bantuan Rampal Malang. Jenis penelitian ini ialah penelitian deskriptif dengan pendekatan cross section. Pengambilan data memakai kuesioner Morisky Medication Adherence Scale-8 (MMAS-8) terhadap 30 responden. Analisis data dilakukan secara statistik, ditampilkan dalam bentuk persentase. Berdasarkan hasil penelitian tingkat kepatuhan penggunaan obat antidiabetes oral di Rumkitban Rampal Bulan April 2021 adalah sebanyak 3 responden (10%) dengan kepatuhan rendah, 16 responden (53,33%) kepatuhan sedang dan 11 responden (36,67%) kepatuhan tinggi. Karakteristik pasien yang memiliki hubungan yang signifikan dengan tingkat kepatuhan adalah tingkat Pendidikan, status pekerjaan, dan ada tidaknya penyakit penyerta. Sedangkan umur pasien, jenis kelamin, lama menderita dan jumlah obat yang digunakan tidak memiliki hubungan yang signifikan dengan tingkat kepatuhan.
Kata kunci : antidiabetik oral; diabetes melitus; tingkat kepatuhan