bluuebunny/crossref_metadata_2025 huggingface dataset:
Efeitos da intervenção precoce no desenvolvimento de uma criança com TEA: interface entre neurociências e educação
Authors: Viana Karla Osiris Freire Leal , Nascimento Sulamita da Silva
Published: April 2021

A pesquisa teve como objetivo comprovar que a intervenção precoce potencializa o desenvolvimento de uma criança com TEA e contribui para um melhor prognóstico. O interesse na abordagem sobre o tema surgiu da necessidade de mostrar que o diagnóstico e tratamento precoces, fundamentados cientificamente, potencializam as chances de remissão das disfunções decorrentes dessa condição. Trata-se de um estudo de caso, de natureza qualitativa, exploratória e descritiva. Utilizou-se de estratégias de intervenção diversificadas, observação clínica, entrevistas e instrumentos avaliativos validados. Os resultados apontaram avanços significativos nas respostas aos estímulos sensoriais, interação, imitação e linguagem. Os processos de intervenção e investigação ocorreram simultaneamente, buscando-se caracterizar o diagnóstico. Percebeu-se que a intervenção precoce é uma estratégia eficiente, com a propriedade de ampliar as conexões neurais, como afirmam os estudos da Neurociência.
Pacientes pediátricos com doença renal crônica em estágio cinco no Brasil: impacto na qualidade de vida
Authors: Azevedo Talita Fraga de , Teixeira Ilma Terezinha Palmeira , Azevedo Ana Clara Fraga de , Cheles Catarina Amaral , Barbosa Sabrina Suellem Soares , Silva Caio Barbosa , Morais Manuele Trindade , Assis Pedro Câmera de , Franco Mariana Augusta Caixeta Batista , Gomes Catharine Silva dos Santos
Published: April 2021

Objetivo: Analisar o impacto na qualidade de vida dos pacientes pediátricos acometidos por Doença Renal Crônica em estágio cinco no Brasil. Métodos: Realizou-se uma pesquisa bibliográfica do tipo revisão integrativa por meio de coleta de artigos científicos na língua portuguesa e inglesa sem restrição a datas de publicação, através das bases de dados SciELO, Lilacs/Ibecs, PubMed e Medline. Foram mantidos todos os aspectos éticos para evitar plágios e cópias. Resultados: Seis estudos foram selecionados para análise e discussão dos dados, de acordo com os critérios de busca e seleção identificados. Apesar das diferenças metodológicas entre os seis artigos, notou-se que em todos eles, a qualidade de vida dos pacientes com Doença Renal Crônica em estágio cinco sofreu impacto negativo. Considerações finais: Conclui-se que a qualidade de vida dos pacientes pediátricos portadores de Doença Renal Crônica em estágio cinco é negativamente impactada, sendo explicado pelas exigências impostas pelo tratamento, e pelas dificuldades e estereótipos relacionados à própria doença. Cada paciente pode atribuir significados diferentes, a partir de uma mesma experiência vivida, sendo imprescindível a escuta individualizada pelo medico e pela equipe de saúde envolvidos.
Experimental study of the permafrost thawing effect on the content of nutrients and heavy metals in seawater during abrasion destruction of the Arctic coast
Authors:   N. N. Zubov’s State Oceanographic Institute, Pogojeva M.P. , Yakushev E.V. ,   P. P. Shirshov Institute of Oceanology of the Russian Academy of Sciences, Petrov I.N. ,   N. N. Zubov’s State Oceanographic Institute, Yaeski E.A. ,   Northwest Branch of RPA «Typhoon»
Published: April 2021

In the context of global warming, the permafrost thawing could have a significant impact on the chemical composition of seawaters in the Arctic. Permafrost thawing is a potential source of organic and inorganic forms of nutrients, as well as heavy metals. During the Russian-Norwegian expedition to Svalbard in June 2018, the researchers carried out a laboratory experiment to assess the permafrost thawing effect on the chemical properties of seawater. They took permafrost samples from an abrasive slope 10 km west of Longyearbyen. The experiment took place in the laboratory of the University Center on Svalbard (UNIS), the changes in dissolved oxygen, pH, concentrations of nutrients and pollutants associated with the thawing of permafrost were investigated. During the experiment, the researchers added permafrost samples to the seawater samples, and then kept the solution under natural conditions while taking samples at regular intervals. The experimental data made it possible to assess the changes in the concentration of chemicals because of the permafrost thawing. The experiment shows the significance of the investigated process for coastal waters, its effect on the supply of nutrients, heavy metals, ocean acidification, and, in this regard, demonstrates the sensibility of coastal ecosystems to multiple factors associated with global warming.
THE EFFECT OF FREQUENCY VARIATION ON DIELECTRIC CONSTANT OF RAPHIA HOOKERI
Authors: Iboh Ubong , Robert Ubong , Umoren Grace , Okorie Uduakobong
Published: April 2021

This work sought to investigate the effect of varying the frequency of an applied electric field on the dielectric constant of raphia hookeri. The aim of the work was to ascertain the suitability of using the sample for engineering applications. It was revealed, from the recorded results, that the dielectric constant of the sample decays exponentially with frequency. Also, greater degree of polarisation was observed with decrease in frequency. Again, as a good thermal insulator, it was revealed that the values of the sample’s dielectric constant compared favourably with those of commonly used conventional dielectric materials. Thus, it is obvious that if put into production cycle, the sample can serve as a low-cost and environmentally friendly material suitable for engineering applications within audio frequency range. This will, in turn, help to provide raw material for electronic industry and also improve the economy.
pengaruh penekanan pellet silika terhadap porositas dan permeabilitas
Authors: Fadli Heri
Published: April 2021

Klasifikasi silika (SiO2) dibagi dalam empat karakter dasar silika yaitu struktur kristal, dispersitas, komposisi permukaan dan porositas. Sebelumnya pasir silika ini banyak digunakan oleh industri minyak dan gas sebagai proppant (pasir frak) maupun sebagai filter air. Pilihan proppant tergantung pada jenis permeabilitas atau kekuatan butir yang dibutuhkan. Dimana proppant dengan ukuran yang lebih besar akan memberikan permeabilitas rekahan yang lebih baik, karena nilai permeabilitas akan meningkat seiring dengan bertambahnya diameter dari butiran.  Penelitian ini bertujuan untuk mengetahui pengaruh penekanan pellet silika terhadap porositas dan permeabilitas. Penekanan pellet silika ini menggunakan mesin press hidrolik dengan type KW05-135 dan kapasitas 10.000 Kg. Peneliti membuat pellet silika dengan kandungan pasir silika berukuran butir seragam (100 mesh) sebanyak 8,74 g/cm3, menggunakan perekat jenis Polyethylene Glycol (PEG) 400 sebanyak 0,57 g/cm3, dan Aluminium Powder 3,42 g/cm3. Cetakan yang digunakan Mold Pellet Silika Type Alloy 410 dengan diameter dalam 27 mm, diameter luar 57 mm dan ketinggian lubang cetakan 89 mm dengan penekanan 1000 Kg, 3000 Kg, dan 5000 Kg, serta memberikan suhu sintering sebesar 1200°C. Adapun nilai porositas optimum yang diperoleh sebesar 39,25% dan nilai permeabilitas optimum yang di dapatkan sebesar 57 mD.
Short Peptides: On the Trail of Future Stem Cell-Based Regenerative Therapies
Authors:   Department of Chemistry, Lodz University of Technology, Poland, Bojarska Joanna
Published: April 2021

Stem cells therapy is a great hope for untreatable diseases, transplantology and cosmetology. What is more, with regenerative benefits of stem cells, prolongation of human life is real. Nevertheless, stem cell-based therapeutical defects, such as low efficiency of differentiation or poor immune compatibility, cannot be overlooked. Short peptides, due to their unique features, play an important supporting role in culture medium to stimulate diverse activities of stem cells and provide a new glimpse into future regenerative biomedicine. These simple biomolecules, constituents of proteins, have relevance in the transmission of biological information, can penetrate the cell membrane or activate signalling pathways. They have immunomodulatory, gero-, neuro-, vaso- and skin-protective effects. They enhance proliferation and differentiation of stem cells. Utilizing of short peptides can be helpful in guiding stem cell fate, by mimicking native tissues, which leads to optimization of stem cell-based treatment. They are also important modifiers of scaffolds and modulators of biomaterials in relation to stem cells engineering. This mini review is a summary of the survey of the newest scientific findings, scattered across the world literature, focusing on short peptides as promising tool in seeking safe and effective stem cell-based therapeutical code.
Hemodiafiltration for Intoxication with Lithium Unmasking Its Anti-Parkinsonian Effect
Authors:   Rudolfstiftung Hospital, and the Messerli Institute, Vienna, Austria, Finsterer Josef , Stöllberger Claudia ,   Department of Cardiology and Intensive Care Medicine, Rudolfstiftung Hospital, Vienna, Austria, Wlassits Rebekka ,   Department of Cardiology and Intensive Care Medicine, Rudolfstiftung Hospital, Vienna, Austria
Published: April 2021

From lithium it is known that it exhibits an anti-Parkinson effect [1]. Accordingly, smokers develop less frequently Parkinson’s Disease (PD) than the non-smoking population [2]. This is because tobacco contains a significant amount of lithium [3]. The anti-PD effect of lithium is explained by increased autophagy and reduction of intracellular a-synuclein [3]. Lithium inhibits GSK-3ß and consequently increases the ß-catenine activity [4]. Development of a Parkinson crisis due to flushing out of lithium by Hemodiafiltration (HDF), as in the following case, has not been reported. The patient is a 63 years male (height 180cm, weight 75kg) who was living with his mother in a retirement home and developed fever since 4 days prior to admission. His previous history was positive for psychosis, bipolar disorder, arterial hypertension, chronic renal failure, chronic obstructive pulmonary disease, diabetes, bilateral hydrocele, prostate hypertrophy, polyneuropathy, lithium intoxication, and hyperlipidemia. He had the diagnosis of a questionable extra-pyramidal syndrome but no anti-Parkinson medication. His home medication included aripiprazole (400 mg/ once every 30 d), biperiden (8 mg/d), midazolam (0.25 mg/d), lithium (900 mg/d), quetiapine (50 mg/d), trazodone (75 mg/d), nebivolol (2.5 mg/d), metformin (850 mg/d), simvastatin (20 mg/d), tamsulosin (0.4 mg/d), fenoterol with ipratropium-bromid, and tiotropium plus olodaterol. On admission (hospital day-1 (hd1)) he was comatose, had spontaneous resting tremor, and arterial hypotension (80/40 mmHg). Blood tests revealed hypokaliemia, hypernatriemia, and renal insufficiency (Table 1). The swab test for SARS-CoV2 was negative. ECG showed AV-block-I, right bundle-branch-block, and QT-prolongation (501 ms). X-ray of the lung was normal. Clinical neurologic exam on hd2 revealed somnolence, pain upon maximal passive anteflexion of head, nuchal rigor, ptosis, ophthalmoparesis, spontaneous myocloni all over the body, mild rigor of all extremities, reduced tendon reflexes on the lower limbs, and clonus of the left lower leg (Table 1). Cerebral CT-scan was non-informative. He was treated with fluid substitution, cefuroxim, levetirazetam (LEV) (1000 mg/d), and discontinuation of all psychiatric medication.
EARLY SYNTACTIC ACQUISITION IN A BALINESE SPEAKING CHILD
Authors: Adnyani Ni Luh Putu Sri
Published: April 2021

This article addresses the acquisition of syntax in a Balinese monolingual child at the age of 2;5 until 2;7. The data was collected in natural setting when the child involved in spontaneous interaction with adults. The speech produced by the child was segmented based on the utterances. The speech produced by the child was transcribed orthographically, along with the phonetic transcription. Besides, every utterance produced by the child accompanied by contextual description and explanation. The data was coded and glossed according to the parts of speech, and grammatical functions. The results show that at this stage, even though the child goes through early sentence or word combinations stage, the child still produces single-word utterances at the onset as well. The words belong to noun, verb, adjective, adverb and particle. Words combination produced can be classified into declarative, interrogative, and imperative sentences. Initially, the child frequently omit subject. The fact that in colloquial adult’s conversation in Balinese omitting subject is acceptable may contribute to the subject omission. In two words combinations NP and VP occurred and in three or more words utterances S-P, S-P-O and S-P-C starting to be produced. In making questions kije‘where’, ape ‘what’, encen ‘which one’ and nyen ‘whose’ are used. In question, the child also applied rising intonation when question words are not applied. The child is also able to express tag question. In imperative sentences, the child is able to use command, request, and invitation. This study implies the role of adult’s input in children language acquisition as shown in subject omission and the flexible word order.
CONVERSATION ANALYSIS ON THE INTERVIEW TEST OF THE INDONESIAN SOLIDARITY PARTY’S LEGISLATIVE CANDIDATES
Authors: Wijayanti Farida Indri
Published: April 2021

Based on an analysis of 154 questions and their responses in the interview test of the Indonesian Solidarity Party’s legislative candidates, this article gives a descriptive overview of interview stages and the types of question-response that are implemented in the conversation. Conversation Analysis (CA) is applied as an approach. Data are from video recordings of naturally occurring conversation in the interview test that are retrieved from https://www.youtube.com. Relying on the data, this paper shows the generic structure of interview test (e.g., warm-up, confirmation, information exchange, and wrap-up), question types (e.g., wh-, disjunctive, declarative, tag, echo, narrative, and multiple), and types of responses (e.g., information, confirmation, marked confirmation, disconfirmation, choice of alternative answers, implication, code switched, and repetition). This paper reveals that wh-interrogative is used more commonly in the interview test than the other question types. Finally, information response in the form of clausal responses is mostly preferred by legislative candidates.
MBASAAKÉ IN FAMILY CIRCLE: LINGUISTIC SOCIALIZATION OF POLITENESS IN JAVANESE
Authors: Efendi Arapa , Sukamto Katharina E.
Published: April 2021

This qualitative preliminary study highlights a common linguistic practice of politeness in the Javanese family circle called mbasaaké, which refers to addressing or referring to a family member with a kinship term that does not necessarily portray the actual family relationship. This study aims to demonstrate that this pragmatic practice of mbasaaké requires the role of adult speakers in the family circle to novice members of the family. The adult members in the family intentionally deployed this act as a strategy to socialize politeness in the Javanese culture. A small number of naturally occurring interactive turns which involves four family members are presented in this paper to illustrate this mbasakaké practice. The four persons who participated in the casual conversations originally come from East Java, but they have resided in Yogyakarta for many years. The data presented in this paper prove that this linguistic socialization is continuously practiced within the family circle with or without the presence of the novice members of the family. Another important finding is that a respectful kinship term is also given to a family member in absentia.
CONSTRUCTING AND PROMOTING NATIONAL IDENTITY THROUGH TOURISM: A MULTIMODAL DISCOURSE ANALYSIS OF INDONESIAN OFFICIAL TOURISM WEBSITE
Authors: Sukma Bayu Permana
Published: April 2021

This paper aims to examine the contribution of multimodal resources in the Indonesian official tourism website in constructing and promoting the Indonesian national identity. Data were gathered from 7 verbal (linguistic) texts and 13 visual (nonlinguistic) texts presented in the Indonesian official tourism website. This study draws on Wodak et al’s (2009) discursive strategies of national identity construction and Kress and van Leuween’s (2006) theory of visual design. The results of the study show that the combination of verbal and visual texts in the Indonesian official tourism website contribute to the Indonesian national identity construction and promotion. The constructed and promoted Indonesian national identities are 1) Indonesia as a country with the rich natural landscape; 2) Indonesia as an archipelagic tropical country; 3) Indonesia as a maritime country; 4) Indonesia as a technologically advanced country; 5) Indonesia as a modern country; 6) Indonesia as a multicultural country; 7) Indonesia as a country with cultural richness; 8) Indonesians as people who are open to strangers or foreigners; 9) Indonesians as kind and friendly people; and 10) Indonesians as modern people.
Studying to use volcanic ashes and felsic volcanic rocks in Vietnam teritory as the treatment materials for environment pollution – preliminary results
Authors:   University of Mining and Geology, Vietnam
Published: April 2021

The felsic volcanic rocks and tuff aged from Late Mesozoic to Kainozoic occur in many places in Viet Nam Territory, such as Tu Le area (in Northwest Region), Binh Gia area, Binh Lieu area (Northest Reigion), Nha Trang area, Dalat area (Central Region). The mafic volcanic ashes aged from Late Neogen to Quarternary distribute in central part of Vietnam such ash Con Co Island, Van Hoa High land. The samples of the tuff rock of Don Duong Stratum collected from field trip in Da Lat area have been treated (burned) at 650oC, 750oC, 900oC. The experimental results show that these materials, after treatment (heating in funace at the temperature 650oC, 750oC and 900oC) expressed absortion capacity up to 90% of selected organic matters (MO, MD) and heavy Metal (Pb2+) in the testing solutions. Among them, the sample heating at 900oC is the best material for Pb2+ absorption. The preliminary results show that the volcalnic felsic rocks and volcanic ashes in Viet Nam, after suitable treatments, can be used as an enviroment treatment materials.
Stress Analysis of Engine Camshaft from Light Metal
Authors:   Politeknik Sultan Azlan Shah, Malaysia, Mohd Dahuri Sharuddin
Published: April 2021

This paper presents the structure and static model of engine camshaft analysis. For the purposes of this analysis, the finite element method is used. Camshaft is one of the critical components for effective and precise work of internal combustion engines. This camshaft rotates at high speed causing pressure and vibration in the system. Camshafts are also subject to varying fatigue burden due to cam plunger contact. These precise values are required to be determined to prevent failure in the camshaft. The objective of the project is to model and to perform pressure analysis on the camshaft machine. In this project the standard engine camshafts are modeled and analyzed using the CATIA V5R21 software respectively. This model is created by the basic requirements of the engine. It is done with an existing background, such as the power of acting on cam by means of a valve while running at maximum speed. Here the approach becomes fully CAE based. CAE-based approaches enrich Research and limit the time span. A study was conducted to predict the behavior of the different camshafts structure of the material using the finite three-dimensional pressure of the element. Four types of materials such as Steel, Titanium, Aluminum and Magnesium are taken into account. FEA Stress and maximum displacement decisions are calculated and compared to all of the above materials. The conclusion is to focus on the material suitable for the camshaft to reduce the maximum displacement and weight. Titanium materials become the best material for camshaft manufacturing based on analysis.
Lean Manufacturing and Work Study: Analysis and Integration in an Outbound Logistics Case Study
Authors:   King Mongkut's University of Technology North Bangkok, Thailand
Published: April 2021

Lean manufacturing and work study are both popular and have been widely applied to achieve quality and productivity improvement in several industrial sectors (automotive, health care, and etc.) with high success. Previous studies found that some researchers apply lean manufacturing techniques only, whereas others apply only work study. But not all, some studies have used both techniques for productivity improvement. Therefore, a number of questions remain concerning the gap between the applications of these two techniques. The aim of this research is to fill the gap between these two techniques by reviewing the relationships, differences, and similarities between these two techniques; the results of the two techniques' applications to real case, studies and outbound logistics activities will also be reviewed. A literature review has been conducted to gain an overview of both techniques. Moreover, the case study have shown that both techniques demonstrate enhanced productivity performance. The case study results indicate the relationships, differences, and similarities between the techniques and the benefits of each. In fact, lean manufacturing techniques provide a good overview of processes, whereas the work study techniques focused on critical areas. The effects of applying these techniques are contrasted. Finally, time spent and cost were reduced at the outbound logistics stations.
Estimation of Generalized Logistic Distribution for Financial Data
Authors:   Sultan Qaboos University, Muscat, Oman, Ahmad Muhammad Idrees
Published: April 2021

Risk management of financial assets requires the knowledge of the form of the probability distribution to estimate the probability of extreme price changes. It is not only the shape of the distribution which is important but the methods of estimation also plays a fundamental role to compare the risk-reward tradeoff for different trading strategies with a reasonable adequacy. In the present study the generalized logistic distribution is considered to fit stock market returns of Muscat Securities Market. The extreme quantiles are estimated by the method of probability weighted moments and are compared with that of method of moments.
Design of Gear-train based Sliding-mode Triboelectric Nanogenerator and its Hybridization Perspective with Perovskite Solar Cell
Authors:   Daegu Gyeongbuk Institute of Science and Technology, Korea
Published: April 2021

Triboelectric nanogenerator (TENG) is a renewable energy generation technology that can convert mechanical energy of various forms like wind, tides, or vibrations into usable electrical energy. The output performance of the TENG depends on several parameters such as the amount of input energy, material selection, environmental conditions, etc. If the amount of input energy is low, the output power is reduced. Furthermore, if the input frequency (fin) is low, not only is the output power reduced, but also the working frequency (fw) of the TENG is lowered. This cumulative undesirable effect lowers the output energy from the TENG within a specific time period. Therefore, in this work we employed a gear mechanism with the TENG in order to increase its working frequency, and systematically studied its effects on the TENG output. The gear mechanism consists of the inputgear, which receives the input mechanical energy, and the working-gear, which transfers the input energy to the TENG. By reducing the size of the working-gear, it was possible to increase the TENG output frequency. We fixed the input frequency at 1.5, 3, and 4.5 Hz and controlled the gear-ratio as 1 and 1.7. Under input frequency of 4.5 Hz, we could enhance the TENG output current density by 1.6 times using a gear-ratio of 1.7. Thus, by means of this kinematic system, we were able to increase the working frequency and current output of the TENG. We expect that our gear-train based TENG will help provide high output even under low frequency input energy conditions, and that it will be effectively utilized in practical TENG systems. We also expect that the hybridization of perovskite solar cell and the TENG is a promising energy scavenger.
Predicting PM10 concentration using Bayesian regression with Non-Informative Prior and Conjugate Prior Model
Authors:   Universiti Sains Malaysia, Malaysia
Published: April 2021

The aim of this study is to predict the next day PM10 concentration using Bayesian Regression with noninformative prior and conjugate prior models. The descriptive analysis of PM10, temperature, relative humidity, nitrogen dioxide (NO2), sulphur dioxide (SO2), carbon monoxide (CO) and ozone (O3) are also included. A case study used two-years of air quality monitoring data at three (3) monitoring stations to predict the future PM10 concentration with seven parameters (PM10, temperature, relative humidity, NO2, SO2, CO, and O3). The descriptive analysis showed that the highest mean PM10 concentration occurred at Klang station in 2011 (71.30 µg/m3) followed by 2012 (68.82 µg/m3). The highest mean PM10 concentration was at Nilai in 2012 (68.86 µg/m3) followed by 2011 (66.29µg/m3) respectively. The results showed that the Bayesian regression model used a conjugate prior with a normal-gamma prior which was a good model to predict the PM10 concentration for most study stations with (R2 = 0.67 at Jerantut station), (R2 = 0.61 at Nilai station) and (R2 = 0.66 at Klang station) respectively compared to a non-informative prior.
Amplitude Analysis of Lower Leg Muscle in Car Pedal Operation in Specific Driving Posture and Duration
Authors:   Universiti Kebangsaan Malaysia, Malaysia
Published: April 2021

Driving posture is important to determine the comfortability of the driver. The purpose of this study is to investigate the muscle response in car pedal operation. To evaluate this response, 11 volunteers involved in simulated driving experiment using an electrical impedance myography to detect the muscle contraction of the lower leg, particularly at Gastrocnemius medial (GM). The driver requires to perform different pedal actions. The results depict that GM muscle shows different reaction according to pedal actions. According to these results, different degree of ankle angle lead to different muscle response. These findings help us to understand the effect of physical attribute related to muscle response and joint angle on driver during monotonous driving task.
Behavior of Reduction Precipitation of Nickel Adsorbed on the Surface of Sulfur-Impregnated Carbonaceous Cotton
Authors:   Chiba University
Published: April 2021

In this study, reduction treatment was applied to nickel adsorbed on a sulfur-impregnated carbonaceous cotton prepared using sulfide aqueous solutions, and the precipitation behavior of nickel was determined. Two types of sulfide solutions, K2S and Na2S, were used for preparation of the sulfur-impregnated adsorbent. A cotton immersed in sulfide solution was pyrolyzed in an electric tubular furnace to obtain the fibrous adsorbent. Nickel was adsorbed on the surface of the adsorbent by passing a 10 mM Ni(NO3)2 solution through the obtained adsorbent, and the fibrous adsorbent adsorbed nickel was heated in N2 atmosphere using an electric tubular furnace as reduction treatment. The adsorbents on each process were analyzed by X-ray diffraction (XRD) and observed by scanning electron microscope (SEM), respectively, and the effects of sulfide type, concentration and reduction temperature on the precipitation behavior of nickel adsorbed on the sulfur-impregnated cotton was examined. The adsorption amount of the adsorbent obtained using 1.0 M Na2S was higher than that using 1.0 M K2S. From the analysis of adsorption isotherms using Langmuir and Freundlich model, the Langmuir model matched the data better than the Freundlich model for both adsorbents, and maximum adsorption capacity calculated from the Langmuir isotherm model for the adsorbent obtained using Na2S was 0.43 mmol/g, which was higher than that using K2S (0.27 mmol/g). Ni3S2 was precipitated on the adsorbent prepared using 1.0 M K2S by reduction treatment at more than 800 oC, while metallic nickel was precipitated on the adsorbent prepared using 0.5 M Na2S by reduction treatment at more than 800 oC. The amount and size of the precipitated particles increased with increasing the reduction temperature.
Automatic Meat Slicing Machine
Authors:   Politeknik Sultan Azlan Shah, Malaysia, Senin Nor’ain
Published: April 2021

A new innovation has been created which is called AUTOMATIC MEAT SLICING (AMS) MACHINE. The main purpose of the machine creation is to replace the old-style method in slicing the chicken meat to modern method. BABARITTOS DELIGHT supplies Tortillas Wrap to the latest trend of Food & Beverage (F&B) business called Food Truck. The main ingredient of Burritos is slices of boneless chicken meat, where each slice is approximately has to be 5 mm thick. Formerly, the slicing procedure used a normal cutting knife and its production rate was truncated as the demands of the Burritos are going higher by days. This method requires 3 to 4 workers to team up to complete the 30 kg boneless chicken meat to be cut into roughly 5 mm per slice within one and half hour. The AMS machine is predominant to help the company to grow the output of sliced meat and at the same time can reduce the number of workers. The usage of AMS machine is only required one worker for the operation and the output can be up to 30kg per 30mins, which is actually can end up almost 3 times quantity of output and 3 times labor cost-saving. Meanwhile the quality of the sliced meat is much enhanced as most of the slice meat is precisely 5mm thick. The AMS concept design is cutting the meat using several circular cutting blades, where the chicken will be put on the moving conveyor and finally will fall onto the hygienic tray.
Eco-friendly innovation gripping systems actuated by pneumatic muscles
Authors:   Transilvania University, Romania
Published: April 2021

The paper focuses on the development of innovative, bionic, eco-friendly and light gripping systems. Within this broader context the paper presents and discusses four innovative constructive solutions for a gripping system mountable on an industrial robot, based on actuation by a linear pneumatic muscle and transmission of motion by gear and rack mechanism. The method underlying the development of these novel
Low Power Ring Oscillator Design in 130nm CMOS Technology
Authors:   Universiti Kebangsaan Malaysia, Malaysia, Yaacob Nor Samida
Published: April 2021

A temperature-stable, low-power ring oscillator design for implementation in an Application-Specific Integrated Circuit (ASIC) is presented. In this work, the design uses a new arrangement of chain delay elements consisting of a current-starved inverter and a CMOS capacitor. This power consumption improvement ring oscillator design was built in the environment of 130nm CMOS process technology using Mentor Graphics environment with voltage supply 1V. The simulation results show a maximum power consumption of 1.036 nW and it shows that the presented design is applicable in low power advanced sensing systems application including biomedical, chemical, and other sensors.
Transition towards a sustainable heating sector in municipality of Visoko with analysis of loading and optimization of solar collector carriers
Authors:   University of Sarajevo, Bosnia and Herzegovina
Published: April 2021

Many traditional heating systems based on fossils face challenges such as lack of investment or unfavorable price regulation, low technical performance, impact on the environment and negative consumer perceptions. The CoolHeating project funded by the EU’s Horizon 2020 program, whose basic features and outcomes are presented in this work, promotes the implementation of small modular renewable heating and cooling grids for communities in South-Eastern Europe, including the town of Visoko as one of five target regions. Core activities, besides techno-economical assessments and social-environmental benefits, include measures to stimulate the interest of communities and citizens to set-up renewable district heating systems. In this work, an analysis was performed for implementation of small modular district heating system in Visoko, covering several public buildings and few neighborhoods in north-western part of town. Combination of different renewable energy sources were analyzed leading to an optimal and a very promising energy supply strategy due to its contribution to security of supply, financial stability, local economic development, local employment, etc. Possible financial savings for heating of 38% compared to current financial needs are determined. Structure optimization of solar collector holders was also performed, taking into account external influence, enabling savings in the structure material. This approach confirms feasibility of transition from traditional to renewable energy based heating system. Having in mind the modularity of such systems, similar solutions can be replicated in other South-Eastern European cities and other countries.
Improving photocatalytic decomposition by MWCNT and anodized α-Fe2 O3 composite
Authors:   Ritsumeikan University, Japan
Published: April 2021

In recent years, photocatalytic technology has received attention for environmental protection. In this study, the usefulness of iron nanostructures generated by anodization was confirmed. Moreover, the synergistic effect of anodized iron (hematite, α-Fe₂O₃) and MWCNT (multi-walled carbon nanotube) was confirmed by methylene blue (MB) decomposition by MWCNT /α-Fe₂O₃ composite material. Electrophoretic deposition(EPD) was used as a method of making the MWCNT/α-Fe₂O₃ composite material. Characterization of the anodized samples and samples after EPD was performed by SEM and XRD, and concentration measurement of MB decomposition was performed using a spectrophotometer. The MB decomposition rate was improved in all the samples with MWCNT and the highest obtained with the MWCNT/α-Fe₂O₃ sample
To Detect Irregular Trade Behaviors In Stock Market By Using Graph Based Ranking Methods
Authors:   John von Neumann Institute, Vietnam
Published: April 2021

: To detect the irregular trade behaviors in the stock market is the important problem in machine learning field. These irregular trade behaviors are obviously illegal. To detect these irregular trade behaviors in the stock market, data scientists normally employ the supervised learning techniques. In this paper, we employ the three graph Laplacian based semi-supervised ranking methods to solve the irregular trade behavior detection problem. Experimental results show that that the un-normalized and symmetric normalized graph Laplacian based semisupervised ranking methods outperform the random walk Laplacian based semi-supervised ranking method.
An Investigation of Effect of Tin (Sn) on Microstructures and Mechanical Properties of Gray Cast Iron
Authors:   Selcuk University, Turkey
Published: April 2021

As the tensile strength of gray cast iron is low, it is tried to increase tensile strength by testing various alloying elements. The most preferred of these alloying elements was the copper element. However, it is known that copper increases both hardness and tensile strength by enhancing perlite ratio in microstructure. On the other hand, when tin (Sn) is used in trace amounts compared to copper, it has similar effects on hardness and tensile strength of cast iron. In this study, adding tin element of 0,03-0,06-0,09-0,12-0,15 % by weight in gray cast iron, its effect on tensile strength was investigated and the appearance of the fracture surfaces was examined. It was compared with two different gray cast irons containing 0.4% copper element and free of alloying elements. According to the tensile strength results, the highest tensile strength was observed to be 195 N / mm2 in the specimen number 6 containing 0,12% Sn. The lowest tensile strength was determined as 157 N / mm2 in the specimen number 1 which did not contain alloying elements. In SEM (Scanning Electron Microscopy) images, it is seen that the samples generally exhibit a brittle rupture behaviour. In some of the specimens with the addition of tin and copper, regional ductile rupture behaviours were observed.
THE DEVELOPMENT OF YEAR ONE STEM COMIC FOR SCIENCE AND MATHEMATICS SUBJECT
Authors:   Universiti Pendidikan Sultan Idris, Malaysia, Abdullah Norazilawati
Published: April 2021

: This study aims to develop a year one STEM Comic for science and mathematics subjects. The STEM comic was developed based on the Technology Knowledge, Pedagogy and Content (TPACK) model. The development of this comic involves two phases which is development phase and assessment phase. However, this article only discusses the development phase of STEM comic. 13 Excellent teachers of science and mathematics from the Hulu Langat district were involved in the analysis of syllabus year one science and mathematics subjects and the preparation of scripts while the STEM comic illustrator was created by two lecturers from the Faculty of Art, Computing and Creative Industry from the Sultan Idris Education University. As a result, a STEM comic that contains 10 series for year one science and mathematics subjects has been successfully developed. This comic is expected to attract and enhance the achievement of year one students in science and mathematics. Implication of this study, STEM comic can be used by teachers as science and mathematics teaching aids.
Climate Crises and the Creation of ‘Undeserving’ Victims
Authors: Stanley Elizabeth
Published: April 2021

This paper explores how advanced liberal democracies respond to climate migrants in ways that reflect colonial logics and practices. With a focus on the Pacific, it reflects on three constructions of climate crisis victims. First, as savages—those incapable of adapting or thriving under catastrophic environmental threats and who need to be saved by ‘the West’. Secondly, as threats—the hordes who will threaten white civilization and who must be sorted, excluded, detained and deported. Thirdly, as ‘non-ideal’ victims—those undeserving of full legal protections but who may survive under hostile conditions in receiving states. These political and policy responses create systemic harms and injustice for those who struggle under or must flee environmental degradation, and they function to ensure that those most to blame for climate crises are prioritized as having least responsibility to take action. The paper concludes with consideration of socially just responses to those most affected from climate harms.
Correlation between the type of footwear with physical changes in diabetic feet / Correlação entre o tipo de calçado com alterações físicas em pés de diabéticos / Correlación entre el tipo de calzado con cambios físicos en los pies diabéticos
Authors: Araújo do Nascimento José William , Ciríaco Santana Silva Edjôse , Da Silva Lima Roque Geicianfran , Luiz Ferreira Júnior Manoel , Brust de Jesus Suzane
Published: April 2021

Objetivo: verificar a correlação entre o tipo de calçado com alterações cutâneas, musculoesqueléticas e neurolológicas em pés de diabéticos de uma Unidade de Saúde da Família. Metodologia: trata-se de um estudo descritivo, realizado entre setembro de 2018 a julho de 2019 com 106 usuários diabéticos. O exame físico envolveu os sistemas cutâneo, musculoesquelético e neurológico. Quanto a neurológica verificou-se a sensibilidade tátil à pressão por meio de monofilamentos de 10g e a sensibilidade dolorosa por meio do teste de sensação de picadas. Os calçados também foram avaliados por meio de parâmetros pré-estabelecidos. Os dados foram analisados por meio do Statistical Package for the Social Sciencies através do teste Qui-quadrado com correção de Yates. CAAE: 65743417.8.0000.5206; número do parecer (2.009.766). Resultados: verificou-se que a idade mediana dos participantes foi 64,3 anos. 69,81% dos avaliados portavam calçados inadequados e parcialmente adequados. Destes, 36,4% tinham calos (p-valor: 0,006), 10,3% haviam perdido a sensibilidade tátil à pressão e em 9,4% a sensibilidade dolorosa estava ausente (p-valor: 0,003). Conclusão:  verificou-se que o uso de calçados inadequados associado a neuropatia diabética periférica e às alterações cutâneas, aumentam o risco de ulceração, instalando um quadro de pé diabético.Descritores: Atenção Primária à Saúde. Diabetes Mellitus. Prevalência. Pé Diabético. Promoção da Saúde.
“DANGEROUS RUSSIA”. IS RUSSIA DANGEROUS? REV.: AFANAS’EV, YU.N. (2001), “DANGEROUS RUSSIA. TRADITIONS OF AUTOCRACY TODAY”, RGGU, MOSCOW
Authors:   Russian State University for the Humanities, Akramov Aleksandr R.
Published: April 2021

The article is a reference to the monograph by Y.N. Afanasyev’s “Dangerous Russia. The traditions of autocracy today”, which received devastating criticism from both the historical and the political science community. However, turning to the work 20 years after its release allows one to discard a number of limiting factors and look at the text in a new way, to understand what meanings the author of the monograph was trying to convey to his reader. The article concludes that the predominant emotional nature of the work of Y.N. Afanasyev is based on the historical and biographical context of the work. Such approach to the analysis of the work of Yu.N. Afanas’ev was not previously presented in the scientific literature, however, without taking into account the personality of the author himself, the reader can consider completely different meanings. The paper reveals a hidden meaning of the work related to the fact that Y.N. Afanasyev perceived the development of contemporary Russia as a looped movement in a circle. Such point of view is supported by the comments of Y.N. Afanasyev, as well as the structure of the monograph itself, which is the closest symbiosis of the history and politics of Russia.
Delayed diagnosis of pediatric bladder and prostate rhabdomyosarcoma – causes and consequences
Authors: Styczewska Malgorzata , Krawczyk Malgorzata Anna , Nowak Piotr , Kaczorowska Aleksandra , Bień Ewa
Published: April 2021

Introduction:
Pediatric rhabdomyosarcoma (RMS) is a rare disease, affecting 4.5-6.0 per 1 000 000 children a year. Bladder and/or prostate (B&P) is the primary tumor site in approximately 10% of patients. Initial symptoms of B&P RMS in children may mimic more common, benign conditions such as urinary tract infections (UTIs), functional disorders, and congenital anomalies of the urinary tract.

Aim:
The study aims to emphasize the role of careful clinical examination and strict following the diagnostic guidelines in early detection of pediatric B&P RMS in primary care and emergency department settings.

Case study:
We present two male patients aged 2.5 and 3 years with embryonal B&P RMS initially manifesting as atypical and/or recurrent UTI. In both children, proper diagnoses were delayed due to careless physical examination and failure to adhere to the current guidelines for UTI management. Despite symptoms of an atypical and severe course of UTI, no imaging examinations had been performed for several weeks until dramatic deteriorations of patients’ general conditions occurred.

Results and discussion:
The prolonged diagnostic processes caused unnecessary suffering of both children and significant delay of oncological treatment in one. In the latter patient, bladder preservation was not possible, resulting in decreased quality of life.

Conclusions:
Due to its rarity, B&P RMS is infrequently included in the differential diagnosis in children with recurrent or atypical UTI. However, thorough physical examination and adherence to the guidelines of UTI management enable timely diagnosis of underlying malignancy. Early diagnosis of B&P RMS leads to a better prognosis, less intensive treatment, and improved quality of life of B&P RMS survivors.
Invasive measurement of portal hypertension in the hemodynamics laboratory as an important element of qualification for the treatment of esophageal varices: A single-center experience
Authors: Bojko Krystian , Kern Adam , Arłukowicz Tomasz , Gromadziński Leszek , Górny Jerzy , Onichimowski Dariusz , Jalali Rakesh , Kabziński Damian , Zarzecki Artur , Bil Jacek
Published: April 2021

Introduction:
The measurement of hepatic venous pressure gradient (HVPG) is an essential prognostic factor in subjects with chronic liver disorders.

Aim:
The present study aimed to present the feasibility and applicability of HVPG in the modern hemodynamics laboratory in patients with liver cirrhosis as a stage for qualification in variceal band ligation (VBL).

Material and methods:
We included 78 patients with liver cirrhosis and esophageal varices, who had HVPG measurements taken at the hemodynamics laboratory between January 2015 and January 2019.

Results and discussion:
The mean age was 55.5 ± 10.9 years, and 66.7% were males. The most common cause of liver cirrhosis was alcohol abuse (65.4%), and the most common varices stage was 3 (83.3%). The mean HVPG was 16.3 ± 6.2 mm Hg. In total, 67 (85.9%) patients had HVPG over 10 mm Hg and underwent VBL. No periprocedural complications were observed. At 12 months, recurrent hospitalizations were observed in 67 (85.9%), 5 (6.4%)had cirrhosis-related bleeding episodes, and 4 (5.1%) patients died.

Conclusions:
HVPG measurement is a feasible, safe and reproducible procedure that provides valuable diagnostic/prognostic information and helps make therapeutic decisions. This procedure can be done quickly in the modern hemodynamics laboratory.
KAJIAN KOMPOSISI LIGNIN DAN SELULOSA DARI LIMBAH KAYU SISA DEKORTIKASI RAMI DAN CANGKANG KULIT KOPI UNTUK PROSES GASIFIKASI DOWNDRAFT
Authors: Aprilia Lestari Veni , Bagus Priambodo Trisaksono
Published: April 2021

Gasification of biomass can be used to produce fuel gas that could potentially be used as a powersource for the sustainable development. The main aim of this study is to determine the effect of lignin,cellulose, proximate and ultimate of ramie wood chip biomass and shell coffee to produce gas and thepotential for regional electricity generated. Research carried out by the analysis of lignin and cellulose,proximate and ultimate, calorific value, gasification, composition gases and energy potential. From theresearch results, the waste of coffee shells and ramie wood chips were used as a new energy source toproduce syngas by means of the gasification process. The highest lignin content was for 45.10% coffeeshell and the lowest for flax wood chips was 18.26. Meanwhile, the highest cellulose content was hempwood chips 44.82% and the lowest was coffee skin shell 17.93%. The potential energy produced fromgasified gas provides a correlation with levels of lignin and cellulose. The higher the lignin content andthe greater the cellulose content, the higher energy that occurs in the coffee shell shells of 5.78 kW, andvice versa what happens to hemp wood chips with low lignin levels and high cellulose content providesa potential energy of 4. 64 kW