bluuebunny/crossref_metadata_2025 huggingface dataset:
Renewable Energy: Requirement of the Future Era
Authors: Verma Dr. Niharika
Published: January 2022

Abstract: Energy consumption of a nation is usually considered as an index of its economic development and well being. India’s economy which is third largest in the world is growing rapidly. Policies are prepared for country’s modernisation and expansion of the manufacturing facilities. This modernisation and expansion needs huge energy requirement. However, the relationship between economic growth and increased energy demand is not always a straightforward linear one. For example, under present conditions, 6% increase in India's Gross Domestic Product (GDP) would impose an increased demand of 9 % on its energy sector. India is the fourth largest energy consumer in the worlds after US; China & Russia. Thus the energy sector assumes a critical importance in view of ever increasing energy needs which require huge investment to meet them. The most of the energy need is met through fossil fuel, in which coal has a dominant share, as it contributes upto 44% of the total primary energy production. Increased consumption of coal is mainly due its availability and affordability relative to other fossil fuel for coalfired power generation, use as cooking fuel in rural areas, heavy demand in industries. Energy is also needed for improving the quality of life and for increasing opportunities for development. In India 600 million people do not have access to electricity and about 700 million use biomass as their primary energy resource for cooking, but its share in the primary energy mix has declined by almost ten percentage points since 2000, as households moved to other fuels for cooking, notably liquefied petroleum gas (LPG).The oil, other fossil fuel, is mainly consumed in transport sector. Demand for diesel, account for 70% of road transport fuel, has been particularly very high as this has large share of road freight traffic. Today nearly 72% of the primary energy is generated from the non-renewable fossil fuels as coal and oil, which have taken years to form, are fast depleting due to excessive use. Abundant use of fossil fuels is adversely affecting not only our economy and environment but also our future. So in order to meet the energy demand of our future generation we can not entirely depends on these sources. We have to find out some sustainable energy sources such as Solar energy, Wind energy, Hydro Power, Tidal energy etc to meet our today's demand of energy without putting them in danger of getting expired or depleted and can be used over and over again to meet energy requirement of future generation. Sustainable energy should be widely encouraged as it do not cause any harm to the environment and is available widely free of cost. Keywords: Sustainable energy, Ozone layer depletion, Bioenergy, Solar energy
Digital distanceledelse – det kræver mere end strøm at holde forbindelsen
Authors: Winsløw Mathilde , Grøn Caroline Howard
Published: January 2022

Coronakrisen har sendt mange offentlige ledere på et crash course i at lede på distancen igennem digitale teknologier. Men det er uklart, hvad man præcist skal gøre for at lykkes. Det viser både dansk og international forskning. Ud fra en interviewundersøgelse belyser vi, hvilke muligheder og udfordringer offentlige ledere oplever, når de interagerer med deres medarbejdere digitalt på distancen. På den baggrund udvikler vi en ny konceptualisering af digital distanceledelse. Vi argumenterer for, at tre typer ledelsesadfærd tilsammen kan håndtere de muligheder og udfordringer, lederne oplever: styrkelse af digitale kompetencer samt tilrettelæggelse af rutiner og italesættelse af normer for digital interaktion på distancen.
Rapid evolution allows coexistence of highly divergent lineages within the same niche
Authors: Ward Ben , Collins Sinead
Published: January 2022

Marine microbial ecosystems underpin global biogeochemical cycles and
play a central role in the regulation of Earth’s climate. These
communities are extremely diverse, and their taxonomic composition
varies considerably across ocean basins. It has however been difficult
to establish links between taxonomic diversity and ecosystem function,
and the ecological and evolutionary mechanisms underpinning taxonomic
variation are not well understood. Here we use an individual-based
eco-evolutionary model in which taxonomic diversity emerges as a
consequence of evolutionary history. Using this model we are able to
show that virtually unlimited genetic divergence can be supported in
highly abundant and rapidly evolving assemblages, even in the absence of
niche separation. With a steady stream of genetic, epigenetic and
plastic heritable changes to phenotype, competitive exclusion may be
weakened, allowing sustained coexistence of nearly neutral phenotypes
with highly divergent lineages. This response may help to explain
observed patterns of taxonomic diversity and functional redundancy -
without recourse to hidden dimensions of niche partitioning. In light of
these results we suggest that individual-level variability is a key
driver of species coexistence and the maintenance of microbial
biodiversity.
Disparity in responses of Honduran and Indonesian coral reef systems to global warming
Authors: Johnson Jack , Exton Dan , Dick Jaimie , Oakley Joseph , Pincheira-Donoso Daniel
Published: January 2022

Coral reef ecosystems have been rapidly altered by anthropogenic
warming, posing significant threats to marine biodiversity. However,
alterations of the benthic configurations of coral reefs under global
warming likely vary through space given local-scale variation in
environmental conditions and ecosystem processes. Here, we examine the
responses of coral reef benthic configurations under global warming in
two independent coral reef ecosystems from Honduras and Indonesia. Using
Monte Carlo Markov Chain Generalised Linear Mixed models, our findings
reveal that at the Honduras sites, global warming significantly drove
reductions in sand, sponge and coral rubble coverage, while bare rock
coverage increased. Conversely, the Indonesia sites only showed
increases in sponge coverage and decreases in rock coverage associated
with water warming. These strong disparities seem to have been driven by
global warming only at the Honduras sites, but not at the Indonesia
sites. This suggests that the Indonesia sites of the Wakatobi National
Park (WNP) may be resistant to compositional changes under global
warming. We suspect the resistance to compositional change at the WNP is
driven by disparate ecosystem processes between the Honduras and
Indonesia sites which enhances resilience to disturbance, such as water
warming. Furthermore, there is potential indication that abiotic
processes comparatively shelter coral reefs of the WNP from rising
temperatures, however, this facet would need further exploration. Given
the resistance to compositional change of coral reefs within the WNP,
this region could potentially harbour critical biodiversity as global
warming continues to decimate coral reefs throughout the tropics.
Fractional differential inclusions with multi-point boundary conditions involving Hilfer-Hadamard derivative
Authors: HEDIA Benaouda , Fatima Berrrabah , Mophou Gisèle
Published: January 2022

In this paper, we studied the existence and uniqueness result of
solutions for boundary value problems for Hilfer-Hadamard type
fractional differential inclusions with multi-point boundary conditions,
in the first approach we deal with a non-convex valued right hand side
and in the second approach we consider the Carath\’eodory
case. Finally the compactness of solution sets is also obtained.
The impact of chronotropic incompetence on atrioventricular conduction times in heart failure patients
Authors: Niu Hongxia , Yu Yinghong , Ravikumar Vasanth , Gold Michael
Published: January 2022

Objectives: To evaluate changes in intrinsic atrioventricular
(AV) conduction associated with exercise and atrial pacing among heart
failure patients with cardiac resynchronization therapy (CRT).
Methods: RAVE was a multicenter prospective trial of CRT
patients. Heart rate was increased with incremental atrial pacing up to
130 beats/min and with submaximal exercise without atrial pacing.
According to maximal heart rate achieved during exercise, patients whose
maximal heart rate < 100 bpm or 75% of 85% of age predicted
max heart rate were diagnosed with chronotropic incompentence(CI).
Others were classified as patients with chronotropic compentence(CC).
For CI patients, an additional symptom limited exercise with rate
adaptive pacing activated was performed. Intracardiac intervals were
measured from the implantable lead electrograms. Results: There
were 12 subjects with CI and 24 with CC. With atrial pacing, AV interval
immediately increased and gradually increased with incremental atrial
pacing in all patients. However, the changes in the atrial to right
ventricular (ARV) and atrial to left ventricular (ALV) intervals with
increasing atrial pacing rates were about 3-fold greater in CI patients
compared to CC patients (28.3±29.5 vs. 10.8±8.9 ms/10 bpm for ARV and
25.5±22.1 vs. 9.9±8.8 ms/10 bpm for ALV in the supine position, p
< 0.05). In CI pacing with rate-adaptive pacing during
exercise, AV interval changes with paced heart rate were variable.
Conclusions: AV response to overdrive atrial pacing at rest may
provide a simple means of identifying chronotropic competence in CRT
patients. For patients with CI, who often require rate-adaptive atrial
pacing, rate-adaptive AV algorithms should be adjusted individually.
Prospective, monocentric, repeated-measures study of ADHEAR in adults with middle ear disease
Authors: Dakah Rami Abu , Fischer Dörte , Just Tino
Published: January 2022

Objective: The aim of this study was to evaluate the audiological
performance of the ADHEAR system and to compare it with a softband BAHA
system in adults with middle ear disease. Study Design: Prospective,
single-subject, repeated-measures study Setting: Monocentric study
Participants: In 23 patients with mild to moderate isolated conductive
or combined hearing loss (CHL) the ADHEAR system was tested, where 12 of
them were outside of the ADHEAR indication. In ten patients, testing was
performed with the ADHEAR system and a softband BAHA system. A control
group consisted of 10 patients with bilateral artificial occluded ear
canal. Main outcome measures: Air and bone conduction thresholds and
free-field monosyllable speech intelligibility thresholds in quiet and
in noise were measured and evaluated in an unaided situation and aided
situation. Furthermore, an ADHEAR questionnaire was assessed. Results:
In patients with a middle ear disease compared to the unaided situation,
the aided situations with the ADHEAR system and the softband BAHA system
led to a significant improvement of speech intelligibility in quiet and
in noise. In terms of the ADHEAR questionnaire, using the ADHEAR system
patients reported about an improvement in sound localization, sound
quality and speech intelligibility. Conclusions: The results show that
patients with middle ear disease can benefit from the ADHEAR system,
even if their hearing loss is outside of its indication. Outside the
indication criteria of the ADHEAR system, it can be an option.
The Economic Cost of Unanticipated Water Supply Reductions for Agricultural Producers in the Humboldt River Region
Authors: Taylor Michael , Kingsley Jacob , Rollins Kimberly , Bowman Alec
Published: January 2022

This article develops economic models for a cow-calf ranching operation and an alfalfa hay operation in the Humboldt River Region (HRR) that use surface water for irrigation. The models were built and parameterized through consultation with ranchers and farmers in the HRR in order to represent typical agricultural operations in the region. The models were used to calculate the economic value to an operation of an acre-foot of water not received due to an unanticipated supply reduction. This analysis was conducted to support the conjunctive management of surface and groundwater in the HRR by providing estimates of the economic value of the water that surface water users expect but do not receive due to interference from upstream groundwater pumping. For the cow-calf ranch model, reduced water deliveries impact ranch profits by reducing the amount of low-cost feed grown on the ranch. The increase in average feed costs forces the ranch to reduce its herd size, which lowers the number of new calf births and, as a result, lowers future profits from livestock sales. The cow-calf ranching model predicts an economic value of an acre-foot of water for the cow-calf ranch in the range of $215 per acre-foot for unanticipated supply interruptions that occur in normal water years, and upwards of $290 per acre-foot for supply interruptions that occur during drought. Model results do not provide evidence that the economic value of an acre-foot of water increases with the length of the unanticipated supply reduction. For the alfalfa hay farm model, results indicate that unanticipated reduced water deliveries impact farm profits by first preventing the farm from planting a cover crop during fallow years and then, for more significant interruptions, reducing its acreage of alfalfa hay. The alfalfa hay model predicts that the economic value of an acre-foot of water increases with both the volume of water not received and the length of the unanticipated supply reduction. The economic value of water per-acre-foot predicted by the alfalfa hay model ranges from less than $10 per acre-foot for unanticipated supply interruptions that occur in normal water years, in the range of $100-$200 per acre-foot for single-year supply interruptions that occur during a below average water year, and over $300 per-acre-foot for supply interruptions that occur in successive below average water years.
THE PRACTICAL APPLICATION OF PHILOSOPHY AS INTERPRETED BY P. SLOTERDIJK
Authors: Ivchenko Hanna
Published: January 2022

The article considers the anthropological aspects of the philosophical heritage of the famous German philosopher P. Sloterdijk. On the basis of learning of the work of the philosopher “You must change your life”, there were highlighted and analyzed the key concepts, with the help of which it is realized the deployment of the theoretical construct “care of the self.” These are such concepts as “teacher”, “mentor”, “tutor”, “school”, “identity”, “vertical stress”, “Philosophy “, “habit.” It develops the idea that the philosophy of P. Sloterdijk appears in its practical incarnation in the techniques anthropotechniques. Previous attempts to change the world have failed, says Sloterdijk. Moreover, if practices do not work, theory must look for other solutions. Sloterdijk turns to ancient philosophical thought, to Buddhism, to the techniques of meditation and asceticism, to the masters of modern literature, to reflections on contemporary sports culture. These considerations of P. Sloterdijk acquire special value and relevance in view of the fact that the modern Ukrainian education system, continues to cultivate the training of highly specialized specialists, subjects of production, not their own life activities.
VLADISLAV GALIMSKIY IN THE CONTEXT OF KYIV ASSOCIATION OF ART EXHIBITIONS (1893–1900)
Authors: Ponamarchuk Ihor
Published: January 2022

The article analyses the life and creative journey of the artist of Polish origin Vladyslav Galimskiy (1860 – 1940), who lived and worked in Kyiv. The main milestones of the artist’s life are elucidated. The author specifies his involvement in the exhibition life of Kyiv. Particular attention is paid to the story behind Kyiv Association of Art Exhibitions and the role played by V. Galimskiy and other local artists. The history of holding five exhibitions by Kyiv Association of Art Exhibitions is described in detail, and the reasons for the Association’s decline are examined. The creative journey of the artist after the Association’s shutdown is considered. The research covers Galimskiy’s participation in charitable activities through the prism of his engagement in the organization of “living paintings” (small amateur performances) in favor of a free hospital and fundraising for a new Roman Catholic Church in Kyiv. A very valuable appendix is attached to the article: it is a complete novel list based on the art catalogs comprising more than 70 paintings by Galymsky presented at Kyiv exhibitions in the 1890s.
READER ENGAGEMENT IN L1 AND L2 SPEAKERS OF ENGLISH
Authors: Sabov Andriana , Verba Lidia
Published: January 2022

The paper explores the use of metadiscourse markers by L1 speakers of English and proficient L2 speakers in opinion articles. The data for the analysis consists of 90 articles from the most popular newspapers in the USA, the UK and Ukraine, each variety represented with 30 articles. The classification of metadiscourse is primarily based on Hyland’s taxonomy with a more detailed approach to identifying metadiscoursive occurrences. In addition to investigating the most common patterns of engagement across three varieties of English, the study looks into how those patterns influence L1 and L2 readers, in particularly how engaged they are in the reading process and they would rate the persuasiveness of the text. Findings suggest that despite all three varieties having approximately the same number of metadiscourse markers, there’s a difference as to what types are prevalent in the variety. There are also differences observed concerning the reader engagement among L1 and L2 readers.
“PANDEMIC” CONCEPT IN THE ENGLISH LANGUAGE
Authors: Sharapanovska Yuliia
Published: January 2022

The term "concept" has a number of definitions, but there is no universal one. The concept is one of the basic phenomena of modern linguistics. The concept is a mental formation, which is the result of a person’s cognitive activity and contains information about the objects of the surrounding reality. The concept can be defined as is a global unit on the mental level that represents and structures human knowledge of both material and spiritual worlds. The concept content can be divided into its linguistic significance and a cultural interpretation, so the concept is often called a unit of knowledge, an abstract idea or a mental symbol. The concept of "pandemic" can be considered a key element included in the linguistic picture of the world of every language nowadays. The structure of the concept is represented by three basic components: in the image, information content and interpretation field. The concept of “Pandemic” can be classified into into 7 subgroups, the lexical units of which are in the center of the lexical-semantic group and are close to the value of the nucleus, which can in its turn be subdivided into 3 subgroups.
THE CHAMBER OF NOTARIES IN KATOWICE WYKONYWANIE ZAWODU NOTARIUSZA W DOBIE PANDEMII KORONAWIRUSA NA PODSTAWIE DANYCH POZYSKANYCH Z IZBY NOTARIALNEJ W KATOWICACH
Authors: Wiatrowski Jacek , Pyda Marta
Published: January 2022

Praca ma za zadanie przedstawić specyfikę, charakter oraz zakres zawodu notariusza, możliwości i ograniczenia w wykonywaniu zawodu notariusza w dobie pandemii na podstawie analizy pozyskanych danych z Izby Notarialnej w Katowicach oraz przeprowadzonych badań własnych w celu ustalenia rzeczywistego wpływu pandemii na wykonywanie zawodu notariusza. Celem niniejszej pracy jest określenie wpływu pandemii na pracę notariuszy oraz analiza problemów badawczych poprzez potwierdzenie lub zanegowanie postawionych w części badawczej hipotez. W wyniku przeprowadzonych badań wykazano, że pandemia miała umiarkowany wpływ na pracę notariuszy oraz kancelarii notarialnych w kraju. Ponadto, stwierdzono występowanie zmian w zakresie wykonywanych czynności notarialnych oraz częściowy wpływ na zdawalność oraz dostępność do wstępnych egzaminów notarialnych oraz notarialnych egzaminów zawodowych.
FMUPorto - Summaries and comments
Authors:   USF São Filipe, ACeS Arrábida, Batista (1) Pedro , Taínha (1) Sara ,   USF São Domingos, ACeS Lezíria. ARS Lisboa e Vale do Tejo, de Castro Correia (2) Miguel ,   Centro de Reabilitação do Norte, Valadares, Figueira (2) Sara ,   USF Alcais – ACeS Cascais
Published: January 2022

(1) Clinical practice guidelines for exertional rhabdomyolysis: a military medicine perspective (2) Abdominal organ injuries in youth soccer – a case series and review of literature
Uma nova etapa que se junta no tratamento de tendinopatias? A propósito de um caso clínico.
Authors:   Centro de Medicina Desportiva do Porto, Marinho-Cardoso Beatriz ,   Universidade da Maia Porto, Dimitri-Pinheiro Sofia ,   Instituto Português de Oncologia do Porto – Francisco Gentil, E.P.E., Lixa João ,   Centro Hospitalar e Universitário de São João, Figueiredo Joaquim ,   Centro Hospitalar e Universitário de São João, Pimenta Madalena ,   Faculdade de Medicina, Universidade do Porto
Published: January 2022

Jumper’s knee has been defined as painful chronic overuse injury of the extensor mechanism of the knee joint. The etiology is a chronic overload which is triggered by jumping/plyometric movements as well as different intrinsic and extrinsic dispositions. Therapy should be chosen according to the stage of the disease and usually starts with a non-surgical approach. A potential treatment for the tendinopathy is the eco-guided brisement. This procedure involves the smooth passage of a needle through the abnormal tendon several times to transform a chronic degenerative process into an acute condition that is more likely to heal. It’s important to have a rehabilitation program post-brisement. The authors made a concise review of the literature and present a clinical case which an athlete was treated using this technique.
INDUSTRY 4.0 IN BRAZIL AND THE CHALLENGES OF THE PRODUCTIVITY OF THE ECONOMY
Authors: Rodrigues de Figueiredo Américo , Augusto Vieira Graglia Marcelo
Published: January 2022

This article has the aim to present the on going procees of development of the Industry 4.0 in Brazil from the data analysis provided by recent relevant research and releases that deal with the field, considering for this a wider context analysis. This analysis includes the challenges of Brazilian productivity of the economy and its impacts in the transformation industry, being the most crucial, the phenomenon of the deindustrialization in Brazil, the low qualified workforce, the weak orientation towards innovation and technological development. It is concentrated not only in the technological aspects and manufacturing management related to Industry 4.0, but also explores the issues of productivity of the economy, sector performance and international comparisons. It seeks to demonstrate the importance of the binomial innovation and productivity to Brazil`s insertion in the fourth industrial revolution. It is discussed the need for a new industrial and technological policy that also includes the labour training in STEM areas - science, technology, engineering and mathematics and, biological, aiming to induce the technological innovation. The demands of Industry 4.0 can be a strategic motto for the reallocation of employment among the economy sectors, aiming the increase of aggregate productivity in Brazil and the promotion of innovation.
Formation of experience against the challenges of viral infection through the use of students knowledge of biosafy technologies, part 2
Authors:   Lviv Polytechnic National University, Shved O.V. , Hubytska І. І. ,   Lviv Polytechnic National University, Hubrii Z. V. ,   Lviv Polytechnic National University, Petrina R. О. ,   Lviv Polytechnic National University, Lubenets V. І. ,   Lviv Polytechnic National University
Published: January 2022

New challenges and the state of development of COVID-19 in connection with the spread of new strains of SARS-CoV-2 have been analyzed. Experience and knowledge in working with new means of protection of different types of vaccines are studied: both classic, based on inactivated virus or its fragment, and the new generation – with vector and genetic mRNA vaccines, as well as effective antiviral drugs. Biorisks and compliance with biosafety principles have been studied. The replenishment of the base of competencies for biotechnologists and pharmacists in the context of distance learning and response to the pandemic is considered. The new data were used to introduce and deepen knowledge about the new generation of vaccines and the dangers of dual use of experimental data in the development of new components of educational programs in "Biotechnology and Bioengineering" and “Pharmacy, Industrial Pharmacy”.
Range of antithrombotic agents: Analysis of the market, chemical structure and prospects for the creation of new drugs
Authors:   Lviv Polytechnic National University, Stasevych M. V. , Zvarych V. I. ,   Lviv Polytechnic National University
Published: January 2022

Marketing research of the market of antithrombotic agents of the B01 group in Ukraine in 2021, represented by 112 registered trade names, was carried out. A quantitative assessment of the ratio on the pharmaceutical market to the assortment of pharmaceutical products and dosage forms, and their manufacturers are given. The leaders of the countries-producers of imported products and substances are determined. The analysis of a group of antithrombotic agents using the chemical structure of active substances is carried out to determine the main pharmacophore fragments and the prospects for developing new antithrombotic agents. It has been shown that the prospects for the development of antithrombotic agents are mainly associated with the creation of generic drugs and new dosage forms for which the bioavailability and results of combination therapy are being studied. In addition, new bioactive compounds and prototypes of antithrombotic agents are being developed, both in the world and in Ukraine.
Extraction kinetics of target components from mineral raw materials in column devices
Authors:   Lviv Polytechnic National University, Semenyshyn Ye. M. , Atamanyuk V. M. ,   Lviv Polytechnic National University, Rymar T. I. ,   Lviv Polytechnic National University, Kindzera D. P. ,   Lviv Polytechnic National University, Dobrovetska O. Ya. ,   Lviv Polytechnic National University
Published: January 2022

Methods for predicting the kinetics of extraction of the target component from mineral raw materials for direct-flow and counter-current column extractors have been proposed. To analyze the operation of various industrial devices, the extraction processes of which are carried out in the layer, technique based on specific productivity has been proposed. The kinetic regularities of Al2O3 extraction from bauxite specs and sulfur from sulfur ore have been studied as well as the data of current countercurrent extractors from the field of hydrometallurgical plants of Ukraine have been used.
Technological features of obtaining polylactide extrusion products
Authors:   Lviv Polytechnic National University, Levytskyi V. Ye. , Masyuk A. S. ,   Lviv Polytechnic National University, Katruk D. S. ,   Lviv Polytechnic National University, Boiko M. V. ,   Lviv Polytechnic National University, Ketchur D. I. ,   Lviv Polytechnic National University
Published: January 2022

The technological parameters of the process and the design of the extrusion head for the manufacture of products such as “pipe” of polylactide composite materials by extrusion, its construction elements are calculated. Prototypes of a product made of biodegradable plastic were obtained. The technological and operational properties of the obtained products depending on the content of talc filler and heat treatment parameters are investigated. The highest values of Vickat softening point are observed for heat-treated materials with a filler content of 2 %, and the optimal temperature and heat treatment are 120 °C and time 10–15 min, respectively.
A new obtaining method of tubular products based on polymer gels
Authors:   Lviv Polytechnic National University, Grytsenko O. M , Baran N.M. ,   Lviv Polytechnic National University, Dulebova L. ,   Technical University of Kosice, Berezhnyy B.V. ,   Lviv Polytechnic National University
Published: January 2022

The method for obtaining composite hydrogel tubular products with the increased strength on the basis of copolymers of 2-hydroxyethylmethacrylate with polyvinylpyrrolidone has been developed. The method consists in the formation of hydrogel tubes with a subsequent precipitation from the solution into their outer surface of the reinforced layer based on polyamide, modified with polyvinylpyrrolidone. The obtained composite hydrogel tubes are characterized by the sufficient strength, resilience, elasticity, as well as the ability to withstand an internal pressure within 24‒43 kPa (180‒320 mm Hg).
Technological features of obtaining and properties of grafted polyvinylpyrrolidone copolymers
Authors:   Lviv Polytechnic National University, Zemke V. M. , Chopyk N. V. ,   Lviv Polytechnic National University, Khromyak U. V. ,   Lviv State University of Life Safety, Levytskyi V. Ye. ,   Lviv Polytechnic National University,   The John Paul II Catholic University of Lublin
Published: January 2022

The impact of the vinyl monomers nature, concentration, and temperature on the kinetics of dispersion polymerization in the presence of polyvinylpyrrolidone was studied. The optimal technological parameters of the copolymer synthesis process are determined. It is defined that the properties of dispersion polymerization depend on the process conditions. Such conditions are temperature, monomer and aqueous phase ratio, monomer and initiator concentrations and as well as the amount of polyvinylpyrrolidone. Presented materials derived on the ground of the developed compositions are characterized by principally high working and physical-mechanical properties.
Recurrent Peptic Ulcer Perforation: A Case Report
Authors: Al Abri, MD Maather , Al Mahruqi, MD Ghaitha , Al Qadhi, FRCSC Hani
Published: January 2022

Background: Refractory peptic ulcers are ulcers in the stomach or duodenum that do not heal after eight to twelve weeks of medical/surgical treatment or those that are associated with complications despite medical tssreatment. We herein present a case of a 44 year old man with a recurrent perforated duodenal ulcer requiring emergent surgical intervention.
Kajian Karakteristik Proses Pengomposan Limbah Tanaman Jagung yang Diberi Tambahan Kipahit dan Pupuk Kandang Sapi
Authors: Dwiratna Sophia , Suryadi Edy , Kendarto Dwi Rustam , Amaru Kharistya , Sugandi Wahyu Kristian , Hartono Nur Ilham Tri
Published: January 2022

Corn waste, tithonia and cattle manure are three materials that have different characteristics. These charactersitics differences if used together in the composting process will  complement each other and potentially produce good compost. This research was conducted to find out how the composting process characteristics by utilizing the three raw materials with different characteristics in a composting process. The composting process was carried out using a berkeley method which was stacked with a layered bioreactor. The decomposition process that occurs involving decompisted bacteria, so the composting process runs aerobically. Aerobic composting  corn waste with the addition of tithonia and cattle manure finished in about 4-5 weeks to become a mature compost. The quality of the compost produced is quite good because the content contained in compost fulfills most of the quality standards regulated in SNI 7763: 2018. The addition of tithonia and cattle manure has a positive impact in the process of composting corn plants in terms of duration and good compost. Key words : aerobic, cattle manure, composting, corn waste, tithonia
Uji Kinerja Alat Penghancur Kohe Kambing Tipe Basah
Authors: Saputra Aldi , Lanya Budianto , Suharyatun Siti , Haryanto Agus
Published: January 2022

Goat manure is one of the manure which is widely used in agriculture. Due to its hard physical nature, goat manure needs to be crushed before being applied to facilitate the decomposition process. Currently, there is a wet type of goat dung grinder or crusher used by the community. This study aims to test the performance of the goat manure crusher based on the engine rotation speed (rpm). The research was conducted using 3 different rotation speed of the blade shaft, namely 968 rpm, 1208 rpm, 1454 rpm. The experiment parameters included working capacity, fuel consumtion, and degree of crushing. The results showed that the wet type goat manure crusher had the best working capacity at 1208 rpm blade rotation with 255,78 kg/h working capacity, 1.43 lt/h fuel consumption, and 99.3% crushing uniformity. Keywords: manure, rpm, wet goat manure crusher
Penambahan Tepung Ubi Ungu (Ipomea batatas L.) Terhadap Sifat Organoleptik dan Kimia dalam Pembuatan Pizza
Authors: Wati Andra Tersiana , Intani Ertha Martha
Published: January 2022

ABSTRACT Purple sweet potato flour (Ipomea batatas L.) can be developed as a partial substitute in processing wheat flour-based food products such as pizza. Pizza has a thin round shape with the addition of various toppings on it. This study aims to determine the effect of adding purple sweet potato flour in pizza making on the organoleptic and chemical characteristics of the resulting pizza product. There were 6 variations of pizza with purple sweet potato flour substitution concentration of 0%, 10%, 20%, 30%, 40% and 50%. This study used a completely randomized design method with two repetitions. The resulting pizzas were tested sensory including preference tests as well as differentiation tests (sweet potato flavor, sweet potato aroma, dark purple color, and soft texture). Furthermore, the selected pizzas were analyzed chemically, including proximate analysis and antioxidant activity. Based on statistical tests showed that the addition of purple sweet potato flour was quite favorable at a concentration of 30% with a water content of 44.45%, ash content of 3.48 (% db), protein content 10.26 (%db), carbohydrate content 74.89 (%db) with energy 239.58 (cal/100 g) and antioxidant activity (RSA) 71.26%. Keywords: antioxidant activity, pizza, purple sweat potato flour, purple sweat potato, sensory test
Penentuan Daya Tampung Sungai Mayang Terhadap Beban Pencemaran Menggunakan Persamaan Streeter-Phelps
Authors: Wahyuningsih Sri , Novita Elida , Paradiba Kiki
Published: January 2022

The Mayang River in Jember Regency has a length of approximately 145.50 km which is the longest river and can irrigate an area of 5,860 hectares. The use of the Mayang River by the community can produce waste, both domestic waste, agricultural waste, and livestock waste. Waste that enters directly into river bodies can cause a decrease in river water quality and can create a pollution load. Therefore, the measurement of the load capacity of the Mayang River was conducted. Mayang River water samples were taken using the grab sampling method, while the river's capacity was determined using the Streeter Phelps method. The results showed that the average value of the Mayang River pollution load was 219,483 kg/day. Some of the parameters used to determine the carrying capacity of the river are the daily deoxygenation rate of 0.137 mg/L and the dailyy reaeration rate of 1.097 mg/L. It has a critical point (tc) of 0.186, a critical distance (Xc) of 4.753 km, and a critical deficit (Dc) of 0.281 mg/L. Based on these parameters, it is concluded that the Mayang River can accommodate a pollution load of 1.5 kg/day and can carry out proper purification. Keywords : grab sampling method, Streeter Phelps, the deoxygenation rate, the reaeration rate
Uji Kinerja Mesin Pengiris Singkong Tipe Vertikal
Authors: Ichniarsyah Annisa Nur , Widiono Eka , Purboningtyas Titis Pury
Published: January 2022

Several efforts to improve the efficiency and effectiveness of slicing cassava machine had been conducted. One of them including the development of a prototype cassava slicing machine. This machine has types and classification based on slicing capacity. The purpose of this study was to conduct a machine performance test (verification test, performance test, and ergonomics test), to compare its performance with SNI 0838-1:2014, to analyze the constraints of a vertical cassava slicing machine. A quantitative research approach and descriptive explanatory method were used by observing, measuring, and calculating, the testing of cassava slicing machine. Verification test was to check the suitability of the type and type of engine, motor, transmission type, slicing unit, engine frame, and other supporting components in accordance with the specifications. The performance results of the slicing machine displayed that its capacity was 18.51 kg/hour and performance efficiency of 74.05%. The slicing test obtained an average thickness was 0.73 mm, uniformity level of 64.2%, and damage rate around 9.67%. Ergonomics tests showed that the machine was quite in accordance with the comfort of the operator. There were some obstacles that need evaluations such as the difficulty in adjusting slicing blade, transmission, and technical specifications of the cassava slicing machine. Therefore, the cassava slicing machine needed improvement so that it conforms to the requirements that refer to SNI 0838-1:2014.  Keywords: cassava, performance test, slicing, slicing machine, testing
Perbandingan Kualitas Fermentasi Biji Kakao dengan Penambahan Kultur Campur dan Kultur Tunggal Lactobacillus brevis
Authors: Nes Rannes Ran , Setiawan Andree Wijaya , Handoko Yoga Aji
Published: January 2022

Cocoa beans are one of the plants whose processing process is through fermentation to get quality cocoa beans. The purpose of this study was to determine the quality of fermented cocoa beans with the addition of mixed cultures of Saccharomyces cereviseae, Lactobacillus plantarum, Lactobacillus fermentum, Acetobacter orientalis, Acetobacter tropicalis, and single culture of Lactobacillus brevis and determine the best quality of fermented cocoa beans between mixed culture and single culture of Lactobacillus brevis. This study used a randomized block design with 7 treatments and 4 replications. Each treatment was carried out by adding a single culture and mixed culture in the logarithmic growth phase with a culture concentration of 5%, 10%, and 15%, and as a control, fermentation was conditioned to occur naturally. Observation parameters are pH, temperature, water content, yield, total fat content, total sugar content, lactic acid content, cut test, and organoleptic. The results of the fermentation showed that a good quality was obtained in the P5 treatment (addition of 10% mixed culture) which was perfectly fermented 94% and entered the quality class 1 of SNI 2323:2008. Keywords: cocoa, fermentation, mixed culture, single culture, Lactobacillus brevis
Reconstrução da paleoprodutividade e sua relação com as contribuições continentais no estuário de Macuse, Centro de Moçambique
Authors: Langa Adelina Antonio , Machaieie Hélder Arlindo
Published: January 2022

A reconstrução da paleoprodutividade permite a compreensão da vida marinha e dos processos associados na escala de tempo geológico. O estuário de Macuse é um ambiente com alta reactividade biogeoquímica e particularmente sensível a variações climáticas locais, regionais e globais. O estudo objetivou reconstruir a paleoprodutividade e estabelecer sua relação com as contribuições continentais no estuário de Macuse. Foi realizada uma análise de nove amostras de sedimentos correspondentes a um testemunhador de 90 cm de profundidade, com uma subamostragem de 10 cm. Foi necessário pesar 20 g de sedimento seco e inserir no espectrômetro de fluorescência de raios X por dispersão de energia EDX-7000 para a análise quantitativa dos elementos Al, Fe, Ti, Si, K e Ca. As estimativas de paleoprodutividade foram baseadas nas relações Si/Ti, Ca/Ti e K/Ti e as contribuições continentais foram Al/Ca, Ti/Ca e Fe/Ca. Os indicadores de paleoprodutividade apresentam perfis caracterizados por altos valores nas profundidades de 10 cm, 70 cm e 90 cm; para a contribuição continental, os perfis foram caracterizados por valores baixos, nas profundidades de 70 cm a 90 cm, e altos valores aos 50 cm. Os eventos de alta produtividade no estuário de Macuse coincidiram com uma baixa contribuição continental, sugerindo que a paleoprodutividade não foi estimulada pela contribuição continental. Contudo, essa relação pode não ser confiável, uma vez que a correlação entre a contribuição continental e a granulometria de sedimento mostrou que a concentração dos indicadores de contribuição continental é controlada pela granulometria do sedimento.
VS (30) Tabanlı Yerel Zemin Koşulları ve Deprem Hasar İlişkisi: Van-Abdurrahmangazi Örneği
Authors: Aykaç Zeynep , Akın Müge , Çabalar Ali Fırat
Published: January 2022

Depremlerin sebep olduğu afet riskinin en aza indirilebilmesi için sadece il ve ilçe bazlı çalışmaların değil aynı
zamanda mahalle ve köy gibi küçük bölgeleri kapsayan çalışmaların da yapılması gerekmektedir. Bu çalışmada
Van ilinde 2011 yılında 23 Ekim ve 09 Kasım tarihlerinde gerçekleşen iki depremden yüksek oranda hasar gören
mahallelerden biri olan Abdurrahmangazi Mahallesi incelenmiştir. Çalışma alanında yer alan yapılardaki bina koşulları
ile mahallenin bulunduğu alanda yer alan zemin koşulları birlikte ele alınmıştır. Zeminlerin dinamik davranışlarının
belirlenebilmesi için kayma dalgası hızı (Vs
) kullanılmıştır. Çalışma alanında yapılmış sondaj verileri değerlendirilip
SPT-N ile Vs
ilişkisi için bazı araştırmacılar tarafından geliştirilen 5 farklı ampirik bağıntı kullanılarak kayma
dalgası hızları belirlenmiştir. Bu değerler kullanılarak VS30 değerleri belirlenmiş ve National Earthquake Hazard
Reduction Program (NEHRP-2000), EUROCODE-8, Deprem Bölgelerinde Yapılacak Binalar Hakkında Yönetmelik
(DBYBHY-2007) ‘e göre zemin sınıflandırmaları yapılmıştır. Ayrıca yeni deprem yönetmeliği olan Türkiye Bina
Deprem Yönetmeliği (TBDY-2018) de dikkate alınmıştır. Bina hasar durumları ile mahallenin bulunduğu alanda
yer alan zemin koşulları birlikte değerlendirilmiştir. Depremler sonrasında oluşan bina hasarlarının bu mahalle için
zemin koşullarına bağlı olmadan yapısal eksikliklerden ve yapı kalitesinden kaynaklandığı belirlenmiş ve hasar
dağılımları bu doğrultuda yorumlanmıştır.
El mercado inmobiliario y los efectos en la segregación residencial de la Ciudad de México, 1990-2017
Authors:   , Garrido Rodríguez Laura Alejandra
Published: January 2022

El desarrollo económico y el dinamismo del Mercado Inmobiliario influye en el proceso de configuración urbana otorgando un papel central al suelo y las rentas como configuradores y ordenadores espaciales. Por lo que la importancia de analizar la dinámica del mercado inmobiliario permite identificar las zonas, nodos, ejes y anillos de mayor o menor valor de acuerdo a la localización geográfica de los inmuebles y relacionarla con la distribución desigual de grupos de población en el territorio, conceptualizado como Segregación Residencial. La disputa entre los diversos actores y agentes que buscan ubicarse en lugares con ventajas de localización por accesibilidad, infraestructura, equipamiento, aglomeración de unidades económicas se materializa en una distribución espacial diferenciada, donde el mercado inmobiliario juega un papel central. El objetivo de esta investigación es explicar de la distribución de la población en la ciudad de México a partir de la intervención de los mercados inmobiliarios en la revalorización del suelo y la apropiación desigual por parte de los actores sociales desde el año 1990 hasta 2017. Entonces, a partir de un Estudio de Mercado Inmobiliario se mostrará la diversidad de la población en el territorio.
Espacio público y tejido social.
Authors: López Ignacio , Tejeda Isabel
Published: January 2022

Bajo el título “Espacio público y tejido social: arte colaborativo en tiempos de crisis”, el equipo editorial de “Umática, Revista sobre creación y análisis de la imagen” y el proyecto de Investigación “El barrio como escenario de pedagogías críticas y arte colaborativo”(PGC2018-094351-B-C42), del Ministerio de Economía y Competitividad, presentan un conjunto de aportaciones críticas que revisan las claves teóricas, metodológicas y prácticas asociadas al empuje que desde el impacto de la crisis de 2008 han recibido aquellas políticas participativas o colaborativas en la gestión y en la creación artística vinculadas al barrio como contexto específico. La aportación de la portada del número por parte de Rogelio López-Cuenca supone, más allá del honor con el que los responsables de esta edición la reciben, toda una declaración de intenciones sobre el horizonte al que aspiran las revisiones mencionadas. La imagen se corresponde con la instalación Mapa de Valencia (2015) [1]. Una instalación que documenta el trabajo del colectivo implicado en el taller No/W/Here, coordinado por López-Cuenca y con la colaboración del IVAM y de la UPV[2], y que da cuenta de un cambio de paradigma en el que el impacto de la intervención artística se vislumbra en aquellos lugares que nuestro entorno capitalizado deja al descubierto…
“Corkwood”, un nuevo material natural, renovable y sostenible. Una materia prima única para comunicar naturaleza y sostenibilidad
Authors: Sánchez Martín Miguel Angel
Published: January 2022

Está científicamente probado que la exposición al ruido tiene efectos negativos no solo en el confort sino también en la salud de las personas. En este sentido, “España se sitúa entre los países más ruidosos del mundo”. Por ello, es necesario disponer de un buen aislamiento y acondicionamiento acústico para garantizar el bienestar y la salud de las personas. Esta investigación está enfocada a desarrollar un material con propiedades fonoabsorbentes sin precisar complejos sistemas de mecanizado ni renunciar al diseño.  Además estas cualidades de aislamiento permiten un ahorro energético en las viviendas lo que le aporta un valor añadido a la estética del lugar.
Rebeldía objetual en tiempos de des-normalización de la funcionalidad
Authors: Tedesco Sebastian
Published: January 2022

Un recorrido teórico y una reflexión sobre el arte y el diseño, así como un diálogo entre obras de artistas argentinos contemporáneos que se vinculan a través de una sintaxis común entre ellas, una sintaxis basada en operaciones y estrategias de negación de la funcionalidad original de los objetos, funcionalidades que operan desde un modelo que nos fue inculcado, en donde los objetos nos deben servir, obedecer y ser bellos. Estos son objetos que luchan con su condición de modelo, su condición canónica o normativa, son al mismo tiempo reales y representados, objetos y cosas, estáticos y dinámicos. Son objetos que nos ofrecen una mirada sobre las transformaciones vividas dentro de la cultura material de la vida cotidiana. Ellos nos ayudan a reconocer ciertos aspectos concretos que distinguen la vida de las personas y a convertir las situaciones particulares y sociales en experiencias plausibles de ser narradas.
Una mirada “cromática” al Diseño industrial sudamericano
Authors: Neumarkt Alan
Published: January 2022

El Diseño Industrial en Sudamérica puede observarse desde diferentes puntos de vista, tanto en su recorrido histórico como también en su distribución geográfica siendo el territorio sudamericano una conjunción de diez países y diversas culturas e influencias, variedad de corrientes inmigratorias y diferentes mestizajes. 

Esta visión “cromática” coincidirá en que en el diseño sudamericano lo “híbrido” está siempre presente y que la relación diseñador-proyecto con (o contra) empresa-producción genera un grado de dificultad mayor en la búsqueda de identidad. En el diseño puede encontrarse la tensión centro-periferia en su fase de proyecto, o la tensión inversa, periferia-centro, en sus etapas de industrialización.
Water mites of the genus Hydrodroma Koch, 1837 (Acari, Hydrachnidia: Hydrodromidae) from Argentina, with description of two new species
Authors: Pešić Vladimir , Smit Harry
Published: January 2022

Water mite species of the genus Hydrodroma Koch, 1837 are common in running and standing waters in the Neotropical region. In this study four Hydrodroma species are reported from Argentina. Redefinitions are given for H. peregrina (Koenike, 1905), H. robusta K. Viets, 1954 stat. nov., and H. longiseta K. Viets, 1954, stat. nov. Two species, i.e., Hydrodroma argentinensis sp. nov. and H. ventana sp. nov. are described as new for science.