bluuebunny/crossref_metadata_2025 huggingface dataset:
COVID-19 and Bangladeshi health professionals: Infection status, vaccination and its immediate health consequences
Authors: Banu Bilkis , Akter Nasrin , Chowdhury Sujana Haque , Islam Kazi Rakibul , Islam Md. Tanzeerul , Zahangir Muhammad , Hossain Shah Monir , Hossain Sarder Mahmud
Published: November 2022

Healthcare professionals play a pivotal role in protecting and saving the lives of general people. As health workers are more likely to be infected with COVID-19, it is inevitable to safeguard them through vaccination in advance to continue healthcare services. Hence the study aimed to explore the infection and vaccination status along with immediate health consequences among these frontiers. This was a cross-sectional, web-delivered study conducted among the 300 healthcare frontiers working at COVID-19 dedicated hospitals in eight divisions of Bangladesh. The study questionnaire encompasses infection, vaccination status with dose information, and demographical and organizational information among the respondents. A multivariate logistic regression model and Chi-square test was used for the analytical exploration. Adjusted and Unadjusted Odds Ratio with a 95% confidence interval was calculated for the specified setting indicators. The study revealed that 49% of all respondents tested positive whereas 98% of them were found vaccinated of which mostly (52.3%) had their 2nddoses and 68.7% faced immediate health consequences for having the vaccination. As predictor for COVID-19 infection status, young and senior adult group (30–39 years: AOR = 2.01/0.03; 95% CI: 1.08–3.76; >50 years: AOR = 4.36/0.01; 95% CI: 1.65–11.55) and respondents who received Sinopharm as their vaccine found to have more significant positive infection history. The predictors regarding experiencing immediate health effects after vaccination, surprisingly female (AOR = 3.31/0.01; 95% CI: 1.82–6.04) health professionals of the capital city (AOR = 1.91/0.03; 95% CI: 1.06–3.46) were observed to have health consequences on vaccination. As the older female group (>50 years) in the nursing profession was found more infected with COVID-19 and a significant number of health professionals especially the age group (30–39 years) in the nursing profession experienced immediate health effects of COVID-19 vaccination, implementation of specific strategies and policies are needed to ensure the safety precaution and effective vaccination among the health professionals of Bangladesh.
“Metabolomic diversity of local strains of Beauveria bassiana (Balsamo) Vuillemin and their efficacy against the cassava mite, Tetranychus truncatus Ehara (Acari: Tetranychidae)”
Authors: Chaithra M. , Prameeladevi T. , Prasad L. , Kundu Aditi , Bhagyasree S. N. , Subramanian S. , Kamil Deeba
Published: November 2022

A desirable substitute for chemical pesticides is mycopesticides. In the current investigation, rDNA-ITS (Internal transcribed spacer) and TEF (Transcriptional Elongation Factor) sequencing were used for molecular identification of six Beauveria bassiana strains. Both, leaf discs and potted plant bioassaye were carried out to study their pathogenicity against the cassava mite, Tetranychus truncatus. LC50 and LC90 values of potential B. bassiana strains were estimated. We also discovered a correlation between intraspecific B. bassiana strains pathogenicity and comprehensive metabolome profiles. Bb5, Bb6, Bb8, Bb12, Bb15, and Bb21 strains were identified as B. bassiana by sequencing of rDNA-ITS and TEF segments and sequence comparison to NCBI (National Center for Biotechnology Information) GenBank. Out of the six strains tested for pathogenicity, Bb6, Bb12, and Bb15 strains outperformed against T. truncatus with LC50 values 1.4×106, 1.7×106, and 1.4×106 and with a LC90 values 7.3×107, 1.4×108, and 4.2×108 conidia/ml, respectively, at 3 days after inoculation and were considered as potential strains for effective mite control. Later, Gas Chromatography-Mass Spectrometry (GC-MS) analysis of the above six B. bassiana strains was done on secondary metabolites extracted with ethyl acetate revealed that the potential B. bassiana strains (Bb6, Bb12, and Bb15) have higher levels of acaricidal such as Bis(dimethylethyl)-phenol: Bb6 (5.79%), Bb12 (6.15%), and Bb15 (4.69%). Besides, insecticidal (n-Hexadecanoic acid), and insect innate immunity overcoming compound (Nonadecene) were also identified; therefore, the synergistic effect of these compounds might lead toa higher pathogenicity of B. bassiana against T. truncatus. Further, these compounds also exhibited two clusters, which separate the potential and non-potential strains in the dendrogram of Thin Layer Chromatography. These results clearly demonstrated the potentiality of the B. bassiana strains against T. truncatus due to the occurrence of their bioactive volatile metabolome.
Estimation of the stress-strength reliability for the inverse Weibull distribution under adaptive type-II progressive hybrid censoring
Authors: Alslman Majd , Helu Amal
Published: November 2022

In this article, we compare the maximum likelihood estimate (MLE) and the maximum product of spacing estimate (MPSE) of a stress-strength reliability model,θ=P(Y<X), under adaptive progressive type-II progressive hybrid censoring, when X and Y are independent random variables taken from the inverse Weibull distribution (IWD) with the same shape parameter and different scale parameters. The performance of both estimators is compared, through a comprehensive computer simulation based on two criteria, namely bias and mean squared error (MSE). To demonstrate the effectiveness of our proposed methods, we used two examples of real-life data based on Breakdown Times of an Insulated Fluid by (Nelson, 2003) and Head and Neck Cancer Data by (Efron, 1988). It is concluded that the MPSE method outperformed the MLE method in terms of bias and MSE values.
Performing art as a new form of youth participation and engagement in politics: The case of Chileans’ social outburst
Authors: Bronfman Paulina
Published: November 2022

Protest activity has become a central element for political change in Chile. In 2019, during Chileans’ October social outburst, performing arts were in the centre of the street protests. This article explores the inspiration social movements have gained from artistic practices and the role the arts in general have had as a new form of youth participation and engagement in politics in Chile. Also, this article examines the relation between the lack of formal citizenship education in the Chilean curriculum after the return of democracy and the birth of these new forms of political participation and activism within the youth. Additionally, based on the Chilean case, the article argues the need for new conceptualizations of citizenship education beyond the traditional boundaries of education institutions.
The Upswing: How We Came Together a Century Ago and How We Can Do It Again, Robert D. Putnam and Shalyn Romney Garrett (2020)
Authors: Davies Ian
Published: November 2022

Review of: The Upswing: How We Came Together a Century Ago and How We Can Do It Again, Robert D. Putnam and Shalyn Romney Garrett (2020)

London: Swift Press, 465 pp.,

ISBN 978-1-80075-002-9, h/bk, £25
The History of Trans Representation in American Television and Film Genres, Traci B. Abbott (2022)
Authors: Burger Alissa
Published: November 2022

Review of: The History of Trans Representation in American Television and Film Genres, Traci B. Abbott (2022)

Cham: Palgrave Macmillan, 293 pp.,

ISBN 978-3-03097-792-4, h/bk, $119.99

ISBN 978-3-03097-793-1, e-book, $89.00
Multiple nonsymmetric nodal solutions for quasilinear Schrödinger
system
Authors: Chen Jianqing , Zhang Qian
Published: November 2022

In this paper, we consider the quasilinear Schrödinger system in
N
≥

3
:

{

−

Δ

u
+
A
(
x
)
u
−

1
2

Δ

(

u

2

)
u
=

2
α

α

+
β

|

u

|

α

−

2

u

|

v

|

β

,

−

Δ

v
+
B
v
−

1
2

Δ

(

v

2

)
v
=

2
β

α

+
β

|

u

|

α

|

v

|

β

−

2

v
,

where
α

,
β

>
1
,
2
<
α

+
β

<

4
N

N
−

2

,
B
>
0
is a constant. By using a constrained minimization on Nehari–Pohožaev set, for any given integer
s
≥

2
, we construct a non-radially symmetrical nodal solution with its
2
s
nodal domains.
Conclusions
Authors: Vassiliou Skevi , Papadima-Sophocleous Salomi , Giannikas Christina Nicole
Published: November 2022

According to the literature, most research publications in the long history of L2 assessment mainly focus on Summative Assessment (SA), e.g. on testing, high stakes examinations, and the various aspects related to them, such as validity, reliability, washback, and impact. Attention has only been shed on Formative Assessment (FA) in the last 20 years. More research in this area would prove beneficial, not only to researchers, but to undergraduate and postgraduate students, language practitioners, policymakers, and other stakeholders. By the same token, an overview of what has been researched in FA in the last 20 years and extensive knowledge of this domain would be equally useful.
Perlindungan Hak Cipta pada Layanan Koleksi E-book di Perpustakaan Provinsi Jawa Tengah
Authors: Aji Seno Mulyo , Heriyanto Heriyanto , Dewi Athanasia Octaviani Puspita
Published: November 2022

Penelitian ini mengkaji perlindungan hak cipta layanan koleksi e-book Perpustakaan Provinsi Jawa Tengah. Metode yang digunakan adalah metode kualitatif dengan menggunakan wawancara semi terstruktur dengan pustakawan dari Perpustakaan Provinsi Jawa Tengah. Data yang diperoleh kemudian dianalisis dengan menggunakan teknik yang direkomendasikan oleh Miles and Huberman melalui beberapa tahapan, yaitu transkripsi hasil wawancara, mereduksi data, pengelompokan hasil reduksi dan penentuan tema setiap kelompok. Setiap nama kelompok menunjukkan cara Perpustakaan Provinsi Jawa Tengah dalam melakukan perlindungan hak cipta pada koleksi e-book. Hasil temuan menunjukkan dua tema terkait peran Perpustakaan Provinsi Jawa Tengah sebagai lembaga pemerintah dalam perlindungan hak cipta koleksi e-book. Tema pertama, pengadaan koleksi digital membahas mengenai Perpustakaan Provinsi Jawa Tengah sebagai suatu lembaga resmi turut mengikuti Standard Operating System (SOP) dalam melakukan pengadaan koleksi. Adapun tema kedua yaitu perlindungan koleksi e-book pada aplikasi iJateng menggunakan Digital Right Management (DRM). Hasil penelitian ini menunjukan bahwa pustakawan Perpustakaan Provinsi Jawa Tengah memiliki pemahaman atas Undang-Undang Hak Cipta no 28 tahun 2014 serta hasil penelitian ini dapat berguna dan bermanfaat bagi peneliti yang ingin melihat perlindungan hak cipta dari perspektif pustakawan.
Kuliner Tradisi Menjadi Daya Tarik Pemasaran Pariwisata Ziarah di Kudus
Authors: Indrahti Sri
Published: November 2022

Kulier upacara tradisi selalu dihadirkan bertepatan  dengan waktu ritual tersebut dilakukan, serta menjadi perhatian utama dalam rangkaian kegiatan karena mempunyai makna dan pengharapan dalam kehidupan bermasyarakat pada masa mendatang. Masyarakat sebagai pendukung dan pelestari upacara tradisi selalu menyambut dengan antusias dan pengharapan yang tinggi pada keberlangsungan upacara tradisi sekaligus kuliner yang menyertai.Artikel ini membahas permasalahan tentang keterkaitan antara kuliner tradisi dan pemasaran pariwisata sehingga masyarakat pendukung upacara mempunyai kepedulian yang besar untuk melestarikan. Tujuan penulisan, dengan mengetahui motivasi dan alasan yang mendasari masyarakat pendukung diharapkan ditemukan upaya-upaya pemberdayaan wisata ziarah. Metode pengumpulan dilakukan dengan obeservasi ke lokasi penelitian, melakukan wawancara dengan pelaku upacara tradisi serta pelaku wisata ziarah yang menikmati manfaat dari kuliner tradisi tersebut. Hasil dari penulisan. Persiapan dilakukan dengan sebaik-baiknya, mulai dari bahan baku yang harus ada, orang yang terpilih untuk memasak serta tokoh masyarakat yang bertugas memimpin do’a sebelum beragam kuliner dihidangkan. Makanan kuliner tradisi menjadi penghantar do’a kebaikan bagi seluruh masyarakat pendukung upacar tradisi. Penulisan artikel ini, dimulai dengan pengumpulan data tertulis yang sudah ada serta dilengkapi dengan wawancara pada pelaku upacara serta penikmat upacara baik wisatawan lokal maupun antar propinsi. Data dikumpulkan dan dilakukan analisa untuk mempertemukan antara motivasi tetap melakukan dan melestarikan upacara tradisi serta manfaat yang dirasakan oleh masyarakat pendukung upacara. Beberapa jenis kuliner menjadi daya tarik bagi upacara sendiri maupun kunjungan wisata ziarah yang ada di Kudus.
Trajektoria tonalno-harmoniczna jako wyraz archetypu narracyjnego unii mistycznej w twórczości Charles’a Tournemire’a i Aleksandra Skriabina
Authors: Raba Bogusław
Published: November 2022

The subject of the article is a comparison of the process of transformations of the tonal-harmonic structure in the works of Alexander Scriabin and Charles Tournemire in relation to the narrative archetype of the mystical union. The justification for comparing these aspects of the work of these two composers is their development of a similar harmonic idiom, which they used to symbolically justify diametrically opposed worldviews. Scriabin’s work is considered a breakthrough for European music culture, whereas Tournemire’s is still little known. Just as the former assumed the role of composer-philosopher, the latter became a musical theologian. Tournemire, organist of the St. Clotilde basilica in Paris, initiated the tradition of musical homiletics, in which the central persuasive element, similar to the Gospel parable, was the musical narrative trajectory. Its climax was the mystical chord. However, a comparative analysis of harmonic structures, topics, narrative trajectories, shows the limits of semantization that differentiates aesthetic postulates and analogous narrative constructions, the nodal moment of which are created by the union of polarization elements.
Chopin w tłumaczeniu Michała Bristigera w „De Musica” na podstawie książki Luciena Bourguèsa i Alexandre’a Denéréaza
Authors: Poniatowska Irena
Published: November 2022

Michał Bristiger took a fragment from the book La musique et la vie interieure by L. Bourguès and A. Denéréaz published in 1921, translated it under the title Chopin, and published it in “De musica” vol. I–III in 2006. The authors, who represented energo-psychological research approach, a theory that was being promoted at that time (H. Mersman, Angewandte Musikaesthetik, 1926 and E. Kurth, Musikpsychologie), provided a psychological and musical interpretation of Chopin’s melodics (linked to harmony and texture), and their significance in the integration of form. They distinguish such categories as c o n t i n u i t y and p e n d u l u m  m o t i o n, or undulating, wave-like movements that expand and lead to a culmination, the outflow from which takes the form of, for example, a gliding flight, “plané”. They describe Chopin’s imagination as ballistic. Previous research had focused exclusively on the microstructures of melody, on characteristic intervals, typical phrases, expressive gestures, and not on the flow, on the impulses in the creation of contrast, on the rising and falling of the melodic line, and for this reason the Chopin chapter in this book remains a source of inspiration to this day.
„Mistrz musi potwierdzić ucznia, uczeń potwierdza mistrza w jego roli i pozycji”. O relacjach Karola Szymanowskiego i Zygmunta Mycielskiego
Authors: Mielcarek-Krzyżanowska Barbara
Published: November 2022

The special relationship that developed during the second half of the 1920s between Karol Szymanowski and Zygmunt Mycielski, composers from two different generations, lasted until Szymanowski’s death in 1937. In this relationship there was a combination of experience, wisdom and knowledge, identified with the position of the master, and supported by his having overcome the reluctance to share them with a young novice in composition, just entering the field of music.The attitude of the pupil often lacked the usual boundless trust in themaster, compensated for by Mycielski through enormous respect and fascination with Szymanowski’s stance.The two composers were linked by background, respect for tradition, and by dramatic events which at different moments inhistory deprived them of contact with the material heritage of their ancestors. The bond they built between them turned not only into deep friendship but also a special kind of spiritual closeness. They affirmed each other in their roles, giving this bond an almost symbolic dimension.
„Ja” na pięć głosów rozpisane? Wielogłosowość madrygału od 1950 roku
Authors: Micał Dominika
Published: November 2022

Surprisingly, since 1950, at least 500 works connected to the madrigal, and among them at least 454 madrigals, have been written. Unfortunately, a comprehensive musicological or theoretical-musical approach to that issue has been lacking so far. Using the genre studies perspective, the article aims to show how some composers working in the second half of the 20th–century and in the 21st–century respond to the early madrigal in terms of one of the most important madrigal characteristics – its polyphonic scoring and texture. That aspect, criticised by theorists at the end of the 17 th century, became the source of diverse musical reinterpretation in contemporary pieces by, among others: Luciano Berio, Christophe Bertrand, Harrison Birtwistle, George Crumb, Beat Furrer, Roman Haubenstock-Ramati, Paul Hindemith, Mauricio Kagel, György Ligeti, Luigi Nono, Henri Pousseur, Grażyna Pstrokońska-Nawratil, John Rutter, Johannes Schöllhorn, Salvatore Sciarrino, Marek Stachowski, Alfred Schnittke, Pēteris Vasks, Agata Zubel. A number of aspects of polyphony are taken into consideration: type of polyphonic means (canons, fugue, passacaglia, etc.), their function (structural, semantic, emotional, etc.), and their meaning (c.f. their role in the process of constructing the subject of given works).
Nonsense Madrigals by György Ligeti: The Musical Sense of Nonsense between Chaos and Order
Authors: Prusak Monika
Published: November 2022

The study examines Ligeti’s “stylistic revolution” as well as the nonsense aspects of the composition and introduces an original analysis of Ligeti’s musical nonsense inspired by the literary analysis of nonsense by Susan Stewart.The Nonsense Madrigals by György Ligeti take part in a kind of “stylistic revolution” in Ligeti’s style and are the result of his passionate research on African polyrhythms and its contribution to his music. What Ligeti intended to create in those periods was a superimposition of different rhythmic and melodic patterns in such a way that they could fuse together in an illusory chaos. However, there is also an ancient order that governs this new approach: the old masters such as Philippe de Vitry, Johannes Okeghem or Johannes Ciconia and their compositional techniques became the base of mixing the old western styles with the traditional music of Central Africa, so that the new and authentic compositional idea could blossom. The copious sketches of the Nonsense Madrigals, stored at the Paul Sacher Stiftung in Basel, reveal that the preparatory brainstorming involved also many other inspirations such as Balkan and oriental music, jazz, and some of Ligeti’s own compositions. The combination of the old and the new without using concrete models but just drawing inspiration marks a new approach among Ligeti’s contemporaries.
Determining relationship between bone screw insertion torque and insertion speed
Authors: Wilkie Jack A , Rauter Georg , Möller Knut
Published: November 2022

Bone screws are used in many orthopaedic procedures. For low-density cancellous and osteoporotic bone, the torque margin for bone screw insertion can be low; over-tightening will strip the threads, while under-tightening may allow screw loosening over time. A model-based system of automatic individualised torque regulation has been proposed, however current efforts assume speed-independence. This publication addresses the lack of knowledge on the speed dependance of insertion torque. Therefore, a bone screw was inserted at various speeds between 2.5 and 25 rpm into 4 different densities of polyurethane foam synthetic bone. A statistically significant upwards trend was found for all materials (p < 0.05). These findings can be used to correct identified bone strength values from previous models, although investigating the physical cause may improve correction schemes.
Model-based analysis and optimization of pressure-controlled ventilation of COPD patients in relation to BMI
Authors: Hennigs Carlotta , Brehmer Kai , Hardel Tim Tristan , Rostalski Philipp
Published: November 2022

This article presents an approach for model-based and personalized determination of inspiratory pressure and inspiratory time in pressure-controlled ventilation. Lung mechanics are strongly dependent on weight and affected by lung diseases such as COPD. Based on a simplified model of the lung with weight- and COPD-specific parameter selection and consideration of ventilation guidelines, the appropriate inspiratory pressure values are calculated. The results illustrate the effect of BMI on the computed optimal pressure-volume ratio. The findings provide a first step towards individualized decision support systems taking into account additional effects like BMI and specific lung diseases.
Score rectification for online assessments in robot-assisted arm rehabilitation
Authors: Sommerhalder Michael , Zimmermann Yves , Knecht Manuel , Suter Zelio , Riener Robert , Wolf Peter
Published: November 2022

Relative comparison of clinical scores to measure the effectiveness of neuro-rehabilitation therapy is possible through a series of discrete measurements during the rehabilitation period within specifically designed task environments. Robots allow quantitative, continuous measurement of data. Resulting robotic scores are also only comparable within similar context, e.g. type of task. We propose a method to decouple these scores from their respective context through functional orthogonalization and compensation of the compounding factors based on a data-driven sensitivity analysis of the user performance. The method was validated for the established accuracy score with variable arm weight support, provoked muscle fatigue and different task directions on 6 participants of our arm exoskeleton group on the ANYexo robot. In the best case, the standard deviation of the assessed score in changing context could be reduced by a factor of 3.2. Therewith, we paved the way to context-independent, quantitative online assessments, recorded autonomously with robots.
Potential of anaerobic co-digestion of acidic fruit processing waste and waste-activated sludge for biogas production
Authors: Zhang Lulu , Peng Biao , Wang Luyao , Wang Qingyi
Published: November 2022

The potential of acidic fruit processing waste (FPW) and waste-activated sludge (WAS) co-digestion for methane production was investigated using batch and continuous experiments. First, batch experiments showed the co-digestion of FPW and WAS solved acid accumulation and increased cumulative biogas production. When the volatile solid (VS) ratio of FPW to WAS was 2:1, the cumulative biogas production was the highest (4,695.47 mL), which increased by 5.2% and 10.5% compared with the VS ratios of 3:1 and 1:1, respectively. Methane production was the rate-limiting step when the FPW percentage was high, and hydrolysis was the rate-limiting step when the WAS percentage was high. Second, the continuous experiments showed fermentation was the most stable when the VS ratio was 2:1, without acid accumulation or excessive total alkalinity consumption. Additionally, the ammonia nitrogen content in the system was above 138.34 mg·L−1, which solved the slow WAS hydrolysis rate and low nitrogen supply efficiency. Microbial community structure of the reactor was correlated with substrate composition greatly. On the 180th day, the relative abundance levels of Bacteroides, Paludibacter, Litorilinea, Levilinea, and Smithella were higher than those on the 120th day and the 240th day. The enrichment of those bacterial groups was beneficial to improve the substrate hydrolysis rate and reduce the influence of organic acids on the anaerobic system.
Power data sampling model based on multi-layer sensing and prediction
Authors: Liu Kai , Sun Shengbo , Wu Guanghua , Guo Wei , Ji Shujun , Li Kun
Published: November 2022

With the development of smart grid and energy Internet, more and more smart sensing devices are installed and used in the power system, thus forming the advanced metering infrastructure (AMI). It makes the power system generate massive data all the time, which may come from smart meters, digital protection devices and so on. Behavior evaluation is to filter out the selected tags that meet the type of user portrait from the user system through the known partial tags, and these similar tags together determine the user’s behavior. How to make good use of the collected power big data is an important research topic in the field of power system. Using data mining technology to analyze power big data is a common research method to deal with power big data problems. To facilitate the staff to quickly understand the characteristics of the user, save service costs, improve user service satisfaction, and find the weak links of the power grid, this paper introduces the random forest algorithm, further researches on the basis of user portraits, combines database technology, machine learning algorithm and Logistics algorithm appropriately, constructs the user data sampling model based on big data, fully excavates the big data information of users and predicts the behavior of power users. According to the results of the forecast, it helps the power enterprises to correct and improve the relevant measures in the future. Experiments show that compared with the traditional Logistics model, the K-S value is increased by about 65.38%. The Gini coefficient is increased by about 12.60%, and the efficiency of the algorithm is improved by 5.26%. It has great advantages in stability and generalization. It has a better effect on power data sampling and forecasting, and helps power enterprises to improve market evaluation and corporate reputation.
Efficient natural dye sensitized solar cell from PVDF based polymer electrolyte filled with layered graphite
Authors: Pooja Kumari , Tripathi Mridula , Chawla Priyanka
Published: November 2022

Graphite nanopowder was synthesized by mechanical method using ball mill and used as filler in polymer electrolyte film based on Polyvinylidene fluoride (PVDF) for application in natural dye sensitized solar cells (DSSCs). A simple solution cast technique was employed for the preparation of polymer electrolyte film with incorporation of different weight percent (1, 2 and 3) graphite filler along with propylene carbonate and ethylene carbonate as plasticizers. X-ray diffraction and differential scanning calorimetry analysis was carried out to determine the crystallinity of the graphite nanopowder and its glass transition temperature. The film with 2 % weight showed the best ionic conductivity of about 5.63 × 10−3 S cm−1. The betacyanin dye from beetroot and chlorophyll dye from spinach leaves was evaluated for the fabrication of dye sensitized solar cell (DSSC). The carboxyl, hydroxyl and porphyrin groups present in these dyes helped in binding the dye with the photoanode of DSSCs.
Artificial optoelectronic spiking neuron based on a resonant tunnelling diode coupled to a vertical cavity surface emitting laser
Authors: Hejda Matěj , Malysheva Ekaterina , Owen-Newns Dafydd , Ali Al-Taai Qusay Raghib , Zhang Weikang , Ortega-Piwonka Ignacio , Javaloyes Julien , Wasige Edward , Dolores-Calzadilla Victor , Figueiredo José M. L. , Romeira Bruno , Hurtado Antonio
Published: November 2022

Excitable optoelectronic devices represent one of the key building blocks for implementation of artificial spiking neurons in neuromorphic (brain-inspired) photonic systems. This work introduces and experimentally investigates an opto-electro-optical (O/E/O) artificial neuron built with a resonant tunnelling diode (RTD) coupled to a photodetector as a receiver and a vertical cavity surface emitting laser as a transmitter. We demonstrate a well-defined excitability threshold, above which the neuron produces optical spiking responses with characteristic neural-like refractory period. We utilise its fan-in capability to perform in-device coincidence detection (logical AND) and exclusive logical OR (XOR) tasks. These results provide first experimental validation of deterministic triggering and tasks in an RTD-based spiking optoelectronic neuron with both input and output optical (I/O) terminals. Furthermore, we also investigate in simulation the prospects of the proposed system for nanophotonic implementation in a monolithic design combining a nanoscale RTD element and a nanolaser; therefore demonstrating the potential of integrated RTD-based excitable nodes for low footprint, high-speed optoelectronic spiking neurons in future neuromorphic photonic hardware.
Adapting the kraft cooking process in glycerol media. Studies of impregnation kinetics
Authors: Lindén Pär A. , Lindström Mikael E. , Lawoko Martin , Henriksson Gunnar
Published: November 2022

Although organosolv processes using high-boiling solvents have been investigated in recent decades for developing novel industrial processes, there are potential benefits of using high-boiling point solvents for traditional sulphate-based cooking processes, both from an industrial perspective and from a laboratory perspective. Using high-boiling solvents, experiments can be done under atmospheric conditions, thus making it easier to continually monitor laboratory experiments and extracting aliquots at desired intervals. Using such a system, alkaline consumption was monitored during impregnation of spruce chips in glycerol media using chemical charges of 1 M NaOH and 0.1 M NaHS, i. e., kraft pulping conditions, and compared to a similar investigation of alkaline consumption in water media using steel autoclaves. The resulting data was fitted to a first order kinetic model, with an apparent activation energy of 22 kJ mol−1 in glycerol media. Finally, a “normal quality pulp” of kappa number 28 and a viscosity of 1113 ml g−1 was successful produced using a cooking process with an impregnation step at 140 °C for 3 h and a cooking step at 160 °C for 4 h. A nuclear magnetic resonance study on the dissolved lignin produced for said experiment showed characteristics typical of other kraft lignins.
Integration of artificial intelligence in robotic vehicles: A bibliometric analysis
Authors: Mudhivarthi Bhavesh Raju , Thakur Prabhat
Published: November 2022

Robots are rapidly growing technologies in simple words. Robots are artificial living things in this world that are created by humans for reducing human involvement in the top domains such as agriculture, medicine, and industries. Based on the requirements of work, robots are classified into six major categories. Robotic vehicles come under the division of autonomous mobile robots and automated guided vehicles. These vehicles are more popular in factories for supporting humans. Integration of artificial intelligence (AI) in a robotic vehicle gives the brain to the vehicle that can sense the surrounding environment and work accordingly without human operation. This article describes bibliometric research on the integration of AI in robotic vehicles. During the research, 1,196 documents are extracted from the Scopus database between 2015 till now. The types of publications included in this bibliometric analysis are articles, conference papers, reviews, book chapters, books, and short surveys that help understand the global research domain. The pictorial representation was made with the help of open-source platforms such as VOSviewer, GPS visualizer, Gephi, ScienceScape, and word cloud. This analysis helps understand the research gap in this domain.
RESEARCH OF WEAR RESISTANCE OF DRAWINGS PERFORMED BY ACRYLIC PAINTS IN HAND PAINTING TECHNIQUES
Authors: VODZINSKA OKSANA , BILOTSKA LARYSA , VORONA NADIIA , DONCHENKO SVITLANA
Published: November 2022

The article considers a modern way of decorating clothes - hand-painted with acrylic paints based on motifs of Petrykivka's paintings. The possibility of using acrylic paints for hand painting of denim products in the technique of Petrikivka is investigated. The evaluation of the process of making drawings with different types of acrylic paint on denim fabric is performed. An experimental study of the wear resistance of the finished garment, namely: color fastness of the applied pattern to rubbing and to the washing. Based on the obtained data, a variant of acrylic paint is proposed, which provides high-quality production of competitive garments with hand-painted finishing in the technique of Petrikivka.
TRAVELLER CLEARER GAUGE CONSEQUENCE ON YARN QUALITY
Authors: SIDDIQUA TOUFIQUA , AZIZ TOWFIK , CHOWDHURY MAHMUD FARHAD , TANIA SHAHRIN IMANA
Published: November 2022

Traveller clearer is an important part of the ring frame machine because, without it, fiber flying in the traveller cannot be cleaned. As a result, fiber congests travellers which may lead to a rise in end breakage rate as well as declination of quality of yarn. Six ring spun yarns of count 85’s tex were produced by using different traveller clearer settings and Burkina Faso cotton fiber was used as a raw material. Both High Volume Instrument (HVI) along with Advanced Fiber Information System (AFIS) was used for recognizing the fiber properties. The ring-spun yarn was produced from the roving count of 985 tex and spindle speed was kept at 7000 R.P.M. with Twist Per Meter (TPM) 492. Evenness properties, as well as strength of yarns, were measured with Uster Tester-6 and Titan Single Yarn Strength Tester respectively, and end breakage rate was studied. One-way ANOVA test was accomplished for all properties of yarn by using Microsoft Excel 2019. Traveller clearer gauge with 3.10 mm shows the best result among the other samples. Yarn properties such as imperfection index, hairiness, Sh (-), tenacity, and processing performance like end breakage rate express the best values. ANOVA result shows a significant difference for all properties except elongation.
EFFECT OF DIFFERENT CRIMP METHOD OF JUTE FIBRE ON STRENGTH AND ELONGATION PROPERTIES OF JUTE YARN AND WOVEN FABRIC
Authors: AKTER SHILPI , MOTALAB MOHAMMAD ABDUL , HELALI MAKSUD
Published: November 2022

Yarn and fabric strength is one of the most important parameters to predict the uses of the end product. Fabric strength mostly depends on yarn strength and yarn strength is prejudiced by fibre strength or fibre properties. Crimp is one of the essential parameter that influences the fibre properties. In this research, crimp box and gear crimp methods were used to introduce crimp into jute fibre. It was found that crimps were irregular in size, shape and number produced from crimp box method. On the other hand, crimps produced from gear crimp method were comparatively regular in size, shape and number. Yarn and fabric strength tests were carried out according to testing standard. It was revealed that yarn strength and elongation at break of gear crimp method were higher than that of crimp box method. Apart from this, fabric strength and elongation were also improved for a regular and increased number of crimps for gear crimp method.
Strengths and Vulnerabilities of Surviving Asian Communist Regimes from a Historical, Regional, and Holistic Approach
Authors: Vu Tuong
Published: November 2022

In this article, I propose a historically grounded, regionally framed, and holistically constructed framework and make three interrelated claims about the strengths and vulnerabilities of surviving communist regimes in Asia. First, these regimes’ resilience today has historical origins in the communist revolutions that founded not only the regimes but also modern nations and states. This foundation provided these regimes with ideological, symbolic, and organizational assets that are now deployed to continue their dominance. Second, these regimes have been evolving together, have come to each other’s assistance at critical times, and have continued special relationships today; therefore, their strengths and vulnerabilities must be examined historically and regionally. Finally, in contrast to much existing scholarship that focuses only on resilience, I argue that factors contributing to their resilience also contain the very seeds of their vulnerabilities. I highlight three such factors, including extensive state control of resources, ruling parties’ ability to manipulate ideologies, and their formidable organizations—these three together carry not only their strengths but also their specific vulnerabilities today.
High‐throughput morphometric and transcriptomic profiling uncovers composition of naïve and sensory‐deprived cortical cholinergic VIP/CHAT neurons
Authors: Yayon Nadav , Amsalem Oren , Zorbaz Tamara , Yakov Or , Dubnov Serafima , Winek Katarzyna , Dudai Amir , Adam Gil , Schmidtner Anna K , Tessier‐Lavigne Marc , Renier Nicolas , Habib Naomi , Segev Idan , London Michael , Soreq Hermona
Published: November 2022

Cortical neuronal networks control cognitive output, but their composition and modulation remain elusive. Here, we studied the morphological and transcriptional diversity of cortical cholinergic VIP/ChAT interneurons (VChIs), a sparse population with a largely unknown function. We focused on VChIs from the whole barrel cortex and developed a high‐throughput automated reconstruction framework, termed PopRec, to characterize hundreds of VChIs from each mouse in an unbiased manner, while preserving 3D cortical coordinates in multiple cleared mouse brains, accumulating thousands of cells. We identified two fundamentally distinct morphological types of VChIs, bipolar and multipolar that differ in their cortical distribution and general morphological features. Following mild unilateral whisker deprivation on postnatal day seven, we found after three weeks both ipsi‐ and contralateral dendritic arborization differences and modified cortical depth and distribution patterns in the barrel fields alone. To seek the transcriptomic drivers, we developed NuNeX, a method for isolating nuclei from fixed tissues, to explore sorted VChIs. This highlighted differentially expressed neuronal structural transcripts, altered exitatory innervation pathways and established Elmo1 as a key regulator of morphology following deprivation.
Perceived Coaches’ Attributes and Level of Fitness Skills Performance Among Student-Athletes
Authors: Nagba Junah Lacasan
Published: November 2022

Good engagement of sports towards education enables the students to balance academic learning and sports skill acquisition. This study sought to find the relevance of perceived coaches’ attributes on the result of evaluation to the performance of student-athletes to produce successful athletes and coaches. It utilized descriptive-correlational research design to determine the significant relationship between attributes of school coaches and sports fitness skill performance of N=162 student-athletes. Instruments used were standardized Coaching Behavior Scale for Sports CBS-S and Standardized Sports Performance Physical Fitness Skill Test. The results disclosed that the sports fitness performance of the student-athletes according to cardiovascular endurance, agility, muscular strength, and flexibility were on highest level; power, reaction-time, and speed were on high level; balance was on average level; muscular endurance and coordination were on low level. It is concluded that the behavior of a coach may determine his competency in designing effective training, hence influence excellent achievement among athletes. Thus, an active engagement of sports towards education enables the students to balance academic learning and sports skill acquisition.
A Journey of Continuous Commitment to Martial Arts in Alumni Karate Practitioners
Authors: Chung Ho Jin , Lim Yi Yan , Sumartiningsih Sri
Published: November 2022

This study aimed to explore the driving aspects of continuous commitment towards karate among Singaporean alumni karate practitioners by examining three periods of their journey; commitment to early participation, commitment to sport karate participation and commitment to present participation. The research question behind this study was what are the driving aspects of continuous commitment in alumni Karate practitioners based on early participation, sport karate participation and present participation? Semi-structured interviews were conducted with 7 black-belt karate practitioners between the ages of 21 - 26 years old. Each interview was audio-recorded and transcribed verbatim.  For data analysis, thematic analysis was employed and themes were identified and categorised into higher order themes. Member-checking was performed to check transcript accuracy and clarify the themes. Four driving aspects surfaced based on the three periods of commitment; Personal competency, personal enjoyment, personal well-being and personal obligations. The study further discussed the driving aspects and underlying themes that drove continuous commitment to Karate. Results of this study could benefit martial arts clubs and relevant organisations in understanding some of the factors behind karate commitment and engagement. The implications may be translated into healthy lifestyle engagement policies by government or policy-making bodies in encouraging active health and lifelong sport participation. Further research on Karate could focus on the influence of overall training time and club affiliation in driving commitment to the martial art.
The Relationship Between Physical Activity And Peak Height Velocity In Children Aged 9 – 11 Years
Authors: Annas Safeb Achmad Irfai
Published: November 2022

The purpose of this research was to determine the relationship between physical activity and the age of PHV in children aged 9-11 years. The method used in this research is a test survey with data collection techniques using questionnaires and measurement tests. The population in this research is SSB Tugumuda athletes and grade 4 students at SDN Karangjati 04. The samples were taken from as many as 29 boys from SSB Tugumuda and 23 boys from SDN Karangjati 04 aged 9-11 years. The sampling technique uses purposive sampling. The data analysis technique in this research used the Pearson bivariate correlation test. The results showed that 1) The level of physical activity of 1 child (1.9%) had a "low" level of activity, as many as 18 children (34.6%) had physical activity said to be "sufficient", 32 children (61.5%) with a "high" level of physical activity and 1 child (1.9%) had a "very high" level of activity, 3) The average age of PHV in 52 respondents was 14.02 years. It was concluded that there was a relationship between physical activity to the age of PHV in the 2 groups.
Study on mechanical strength of cantilever handrail joints for chair
Authors: Li Shuang , Hu Wengang
Published: November 2022

Modern solid wood armchairs are developing in the direction of simplicity and lightness, and favored by the market. However, the low mechanical strength of the connecting joint of cantilevered handrails is an issue that needs to be improved. In this study, the armrest joints of a cantilever armchair made by beech (Fagus orientalis Lipsky) were examined. To improve the mechanical strength of handrail joints, three novel joints were proposed including dovetail tenon, cross-stepped tenon, and rear plug corner tenon. The finite element analysis (FEA) was used to compare and analyze the five joints to obtain the optimal joint. Finally, experimental tests were conducted to verify the results of the FEA. The novel cross-stepped tenon had better mechanical performance, i.e., bending moment capacity and stiffness, than other joints evaluated. The maximum load of the novel cross-stepped tenon was greater than that of the commonly used tenon. In conclusion, the cross-stepped tenon was most suitable for cantilevered handrail joint of chair. This study will contribute to the structural design of modern solid wooden chairs.
In-soil degradation of polymer materials waste – A survey of different approaches in relation with environmental impact
Authors: Teacă Carmen-Alice , Ignat Mauruşa-Elena , Nechifor Marioara , Tanasă Fulga , Ignat Leonard
Published: November 2022

Vegetal fibers from different sources, including wood fibers and plant-derived fibers, together with polymer plastics per se (natural, synthetic, and their blends), as well as their combinations as composite materials may generate significant amounts of wastes. These will undergo degradation process under exposure to different environmental factors including microorganisms, climatic changes – e.g. droughts, oxygen, temperature, soil dynamics, UV radiation, etc. This survey offers a concise review of degradation under environmental conditions, mainly after in-soil exposure, of waste made of polymer materials and natural fibers. It also describes the most common methods for evaluation of bioconversion and degradation, as well as the structural properties after degradation (e.g. macroscopic investigation; weight loss; spectrometry – UV, FTIR, NMR; X-ray diffraction for crystalline changes; SEM microscopy; and thermal stability).
Orchids of the Southern Cone (1830–2000) – Part I Claude Gay’s physical and political history of Chile
Authors: Ossenbach Carlos
Published: November 2022

The life and works of French botanist Claude (Claudio) Gay (1800–1873) are presented, with special consideration to Orchidaceae. This work aims to bring to light the life of a brilliant scientist who dedicated his professional life to the study of Chile’s natural history and his seldom-mentioned monumental work that contains the first complete orchid flora of Chile. The most important modern and contemporary bibliographical sources have been consulted, as well as Gay’s original publications. Claude (Claudio) arrived in Chile in 1828 and lived in the country until 1842, engaged by the Chilean government to conduct a scientific survey of the country. He traveled across the country collecting objects of natural history which became the foundation stone of the Cabinet of Natural History, the precursor of Chile’s National Museum of Natural History. Gay returned to France in 1842 and, commissioned by the Chilean Minister of the Interior, published his Historia física y política de Chile, a monumental work in 30 volumes that were published between 1844 and 1871. Eight volumes, published in Paris between 1845 and 1852, containing 3767 species of plants, were dedicated to botany. Following the incomplete works of Juan Ignacio Molina’s Saggio sulla Storia Naturale del Chili (1782) and Ruiz and Pavon’s Flora Peruvianae et Chilensis (1789–1803) it was the first attempt to produce a complete flora of Chile. A total of 49 species of Orchidaceae were described and partly illustrated, a remarkable achievement if we consider that by the turn of the 21st century, a total of orchids was only 52 had been reported for Chile. Claudio Gay is considered the first recorder of the country’s history and the founder of modern natural science in republican Chile.
Musikalienbestände im Institut für Musikwissenschaft der Universität Graz, Teil 3
Authors: Schubert Ingrid
Published: November 2022

Der vorliegende Band ist der 3. und abschließende Teil der Kataloge der Musikalienbestände des Grazer Instituts für Musikwissenschaft und umfasst Noten aus dem Musikverein für Steiermark sowie dem Dommusik-Archiv Graz. Die älteste Handschrift des Musikvereins ist mit 1791 datiert; der größte Teil der Noten (bis Mitte 19. Jh.) ist der Zeit von Kapellmeister F. E. X. Hysel (d. Ä.) und dessen Nachfolger J. Haag zuzuweisen. Die Anfänge des Dommusikbestandes (ca. 1810) stammen aus der Zeit des Regens Chori D. Wasser und reichen bis in die Mitte des 19. Jahrhunderts. Beide Bestände beinhalten in sich geschlossene Nachlässe. Die umfangreichsten sind jene von J. B. Stumpöcker, F. X. P. Posch, L. C. Seydler und J. Deibl. Neu aufgefundene Kompositionen sowie biographische Daten vervollständigen den Katalog.