bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ni–Co–Cu/Carbon Nanocomposites: Synthesis, Characterization and Magnetic Properties
Authors: Gromov A. A. , Yakushko E. V. , Muratov D. G. , Kozitov L. V. , Lomov A. A. , Nalivaiko A. Yu. , Ozherelkov D. Yu. , Pelevin I. A. , Marinich S. B. 
Published: January 2023

The advanced two-stage synthesis method of the Ni–Co–Cu/carbon magnetic nanocomposite as promising material for electromagnetic wave absorption was proposed. Synthesis condition for consolidated Ni–Co–Cu solid solution nanoparticles with an average size of less than 100[Formula: see text]nm uniformly distributed in the carbon matrix was discussed. The effect of different pyrolysis temperatures (500–700∘C) and Cu concentration in the precursor (from 5 to 30[Formula: see text]wt.%) on the microstructure of Ni–Co–Cu nanocomposite, its particle size and magnetic properties was investigated by of XRD, TEM and magnetic hysteresis. The saturation magnetization and remanence showed non-monotonic dependences on Cu concentration in samples. The coercive force was varied from 110 to 177[Formula: see text]Oe depending on Cu content in nanoparticles. The correlation between magnetic properties and microstructure of Ni–Co–Cu/carbon nanocomposites was discussed assuming the transition of nanoparticles to superparamagnetic and single-domain states depending on their sizes.
MIP-Based Sensor for Detection of Gut Microbiota Derived Trimethylamine
Authors: Jalandra Rekha , Lakshmi G. B. V. S. , Dhiman Tarun Kumar , Sharma Minakshi , Kumar Anil , Solanki Pratima R. 
Published: January 2023

Trimethylamine (TMA), a gut microbiota-based metabolite is linked to human health and illness. The detection of TMA in bodily fluids is believed to be crucial in extrapolating the pathophysiology and treatment of a variety of disorders. As a result, the development of accurate and fast TMA detection methods might help us better understand the pathophysiology and diagnosis of disorders linked to TMA. The current study is the first to describe the construction of an electrochemical sensor based on a molecularly imprinted polymer (MIP) for specific and sensitive detection of TMA in human body fluids such as urine. The MIP design was based on polydopamine (PDA), which was made with and without TMA using a polymerization technique. On the glass coated with indium tin oxide (ITO), the MIP, NIP, and non-sonicated polymer (PPy-TMA) were individually deposited. Differential pulse voltammetry (DPV) was used to record the detection response and obtained a sensitivity of 80 nA ml μM−1 within a dynamic detection range of 0.5 μM to 400 mM. This sensor is simple to build; use and it can detect TMA in human fluids like urine with great precision. The current study lays the groundwork for developing MIP-based sensors to detect additional compounds that play role in human health and are originating from gut microbiota.
High-efficiency 2.45 and 5.8 GHz dual-band rectifier design with modulated input signals and a wide input power range
Authors: El Mattar Sara , Baghdad Abdennaceur 
Published: January 2023

<span lang="EN-US">This paper presents a new rectifier design for radio frequency (RF) energy harvesting by adopting a particular circuit topology to achieve two objectives at the same time. First, work with modulated input signal sources instead of only continuous waveform (CW) signals. Second, operate with a wide input power range using the Wilkinson power divider (WPD) and two different rectifier diodes (HSMS2852 and SMS7630) instead of using active components. According to the comparison with dual-band rectifiers presented in the literature, the designed rectifier is a high-efficiency rectifier for wide RF power input ranges. A peak of 67.041% and 49.089% was reached for 2.45 and 5.8 GHz, respectively, for CW as the input signal. An efficiency of 72.325% and 45.935% is obtained with a 16 QAM modulated input signal for the operating frequencies, respectively, 69.979% and 54.579% for 8PSK. The results obtained demonstrate that energy recovery systems can use modulated signals. Therefore, the use of a modulated signal over a CW signal may have additional benefits.</span>
Bio-inspired intelligence for minimizing losses in substrate integrated waveguide
Authors: Akkader Souad , Bouyghf Hamid , Baghdad Abdennaceur 
Published: January 2023

This paper presents a study of various types of losses in substrate-integrated waveguides (SIW) using a genetic algorithm. Three main types of losses are considered and examined separately: conductor loss, dielectric loss, and radiation loss. Furthermore, the current analysis allows for a physical understanding of the loss impacts as well as the creation of design guidelines to reduce losses at 10 GHz frequency while keeping the miniaturized size of the SIW. Validation results obtained using the software Ansys HFSS, verify that the attenuation constant of the SIW can be significantly reduced to 0.4 dB/m, the Insertion loss S21 to -0.2 dB and the return loss to -38 dB if the geometric parameters are chosen properly. This study enables us to identify the source of losses in a SIW and, as a result, eliminate any type of dispersion. That demonstrates the usability of SIW technologies in the design of microwave circuits used in Internet of things applications.
Detecting network attacks model based on a convolutional neural network
Authors: Jasim Ali Teba Ali , Taher Jawhar Muna M. 
Published: January 2023

<p>Due to the increasing use of networks at present, Internet systems have raised many security problems, and statistics indicate that the rate of attacks or intrusions has increased excessively annually, and in the event of any malicious attack on network vulnerabilities or information systems, it may lead to serious disasters, violating policies on network security, i.e., “confidentiality, integrity, and availability” (CIA). Therefore, many detection systems, such as the intrusion detection system, appeared. In this paper, we built a system that detects network attacks using the latest machine learning algorithms and a convolutional neural network based on a dataset of the CSE-CIC-IDS2018. It is a recent dataset that contains a set of common and recent attacks. The detection rate is 99.7%, distinguishing between aggressive attacks and natural assertiveness.</p>
Deep learning optimization for drug-target interaction prediction in COVID-19 using graphic processing unit
Authors: Darmawan Refianto Damai , Kusuma Wisnu Ananta , Rahmawan Hendra 
Published: January 2023

<span lang="EN-US">The exponentially increasing bioinformatics data raised a new problem: the computation time length. The amount of data that needs to be processed is not matched by an increase in hardware performance, so it burdens researchers on computation time, especially on drug-target interaction prediction, where the computational complexity is exponential. One of the focuses of high-performance computing research is the utilization of the graphics processing unit (GPU) to perform multiple computations in parallel. This study aims to see how well the GPU performs when used for deep learning problems to predict drug-target interactions. This study used the gold-standard data in drug-target interaction (DTI) and the coronavirus disease (COVID-19) dataset. The stages of this research are data acquisition, data preprocessing, model building, hyperparameter tuning, performance evaluation and COVID-19 dataset testing. The results of this study indicate that the use of GPU in deep learning models can speed up the training process by 100 times. In addition, the hyperparameter tuning process is also greatly helped by the presence of the GPU because it can make the process up to 55 times faster. When tested using the COVID-19 dataset, the model showed good performance with 76% accuracy, 74% F-measure and a speed-up value of 179.</span>
A novel triangular wave quadrature oscillator without passive components for sinusoidal pulse width modulation DC-AC power conversion
Authors: Garinto Dodi , Valerie Theodora , Yanto Harki Apri , Sutikno Tole , Simatupang Joni Welman 
Published: January 2023

In this study, a low-cost quadrature triangle oscillator using a voltage-controlled closed-loop dual operational amplifier (Op-Amp) architecture is proposed. Unlike other typical designs, this oscillator does not require any passive components. The use of an Op-Amp-based circuit is attractive for a triangle oscillator because it is more cost-effective than a microcontroller-based solution. This is especially true for sinusoidal pulse width modulation (SPWM) DC-AC power conversion applications. The slew-rate restriction of an Op-Amp is a useful characteristic for producing a triangle waveform when seen from the perspective of wave shaping techniques. The MC4558 and the JRC4558D are two examples of dual Op-Amps that are evaluated, contrasted, and described in this article. At supply voltages of +7 V and -7 V, the suggested quadrature triangle oscillator that uses Op-Amps MC4558 and JRC4558D has the same oscillation frequency, which is 63 kHz, as demonstrated by simulation and experimental data. The frequency stability is estimated to be around 0.23%. In addition, the findings from the experiment demonstrate that the proposed oscillator is a practical solution for the SPWM DC-AC power conversion application.
The Psychology of Nuclear Brinkmanship
Authors: Pauly Reid B. C. , McDermott Rose 
Published: January 2023

Abstract
Conventional wisdom sees nuclear brinkmanship and Thomas Schelling's pathbreaking “threat that leaves something to chance” as a solution to the problem of agency in coercion. If leaders cannot credibly threaten to start a nuclear war, perhaps they can at least introduce uncertainty by signaling that the decision is out of their hands. It is not so easy to remove humans from crisis decision-making, however. Often in cases of nuclear brinkmanship, a human being retains a choice about whether to escalate. When two sides engage in rational decision-making, the chance of strategic nuclear exchange should be zero. Scholars have explained how risks associated with accidents, false warnings, and pre-delegation creep into nuclear crises. An investigation of how chance can still produce leverage while leaders retain a choice over whether and when to escalate adds to this scholarship. There remains an element of choice in chance. For a complete understanding of nuclear brinkmanship, psychology and emotion must be added to the analysis to explain how leaders make decisions under pressure. Human emotions can introduce chance into bargaining in ways that contradict the expectations of the rational cost-benefit assumptions that undergird deterrence theory. Three mechanisms of nuclear brinkmanship—accidents, self-control, and control of others—illustrate how a loss of control over the use of nuclear weapons is not a necessary element of the threat that leaves something to chance. Choice does not have to be eliminated for a risk of catastrophic destruction to remain.
Surplus Transfers from British Colonial Malaya
Authors: Peng Martin Khor Kok , K. S. Jomo 
Published: January 2023

Martin Khor’s 1983 book on Malaysian economic dependence provided the first comprehensive estimates of the ‘colonial surplus’ from British Malaya. Khor described how Great Britain secured this from the colonial Malayan economy and estimated various types of surplus extracted via different means. Unsurprisingly, super-profits for privileged foreign capital owners are well known. The terms of trade have been important determinants of the colonial trade surplus. Financial surpluses are distinguished by those secured through the colonial currency board system, foreign commercial banks and colonial public finances, involving fiscal policy. The wealthy Malayan colony transferred funds to London at very low interest rates, but borrowed from British banks at exorbitant rates, besides paying high transactions charges. Colonial managerial privilege was also significant. Such surplus transfers were enabled by various colonial arrangements. Thus, colonial Malaya lost significant financial resources. Only some have changed in the post-colonial era, sometimes rather slowly. JEL Codes: B27, N15
Revisiting the Kerala ‘Model’ of Development: A Sixty-year Assessment of Successes and Failures
Authors: Kannan K. P. 
Published: January 2023

This article seeks to revisit the much-acclaimed Kerala ‘Model’ of Development since the formation of the state of Kerala. As such it subjects the development experience of Kerala for a period of six decades from 1960 to 2020. This exercise reveals that the development experience of Kerala is largely shaped by its historical past which privileged social development over purely economic development based on the growth of the goods producing sectors. State response to social and human development demands were more successful than the conventional efforts to enhance capital formation thereby transforming the material basis of the economy. The high human and social development led to large scale migration of persons, mostly men, to the Gulf countries that resulted in a kind of economic growth induced by outside money in the form of remittances. The national economic context was also one that led to a higher growth of the service sector than the material producing sectors. The limited opportunities afforded by the national state or the increased flow of outside money could not be seized effectively by the regional state to transform goods producing sectors such as agriculture and industry. This resulted in such major and spectacular failures as declining tax collection efficiency, increased net loss of state-owned public enterprises and massive waste of resources in implementing capital projects. I end the article with a call for a study of political economy of development by taking into account the specificities of the Kerala context within a larger national and international context. JEL Codes: O15, R11, F24, J6, H21, H41, H75
Capitalism, Imperialism and the Food Question
Authors: Banerjee Arindam 
Published: January 2023

The success and failure of capitalism have been commonly measured by the yardsticks of industrialisation, technical progress and innovations in the financial markets. The emergence of industrial agriculture under successful capitalist transitions is supposed to have taken care of all food and raw material constraints that could have arrested the development of industrial economies and societies in the North. Simultaneously, the problems of underdevelopment and food insecurity in the South is attributed to internal constraints and barriers. The work of Utsa Patnaik challenges these views as she explored multiple aspects of the contribution of colonies to the advance of capital accumulation in the North. She delves into the nineteenth century ‘international division of labour’, the role of tropical food and raw materials exports by commercialised southern agriculture and implication for food security in the colonies. The objective of this article is to engage with the anti-imperial scholarship of Utsa Patnaik with a specific focus on the food question in capitalism. The article traces the evolution of the food question as capitalism evolved and dominated the world economy. JEL Codes: P1, F54, Q18
Why Inter-caste Inequality in Educational Attainment Still Persists? Wealth and Caste Discrimination Matters
Authors: Thorat Sukhadeo , Khan Khalid 
Published: January 2023

Using recent data for 2017/2018 the article provides empirical evidence on the persistence of the traditional inter-caste inequality in higher educational attainment—enrolment rate being much low for low castes than the high castes. The educational attainment of middle caste is lower than high castes but better than low caste untouchables, indicating a graded inequality in education attainment, unique feature of caste system. Between the income group the low income groups suffered the most from low education attainment than the high oncome groups. The inequalities in ownership of wealth and income and caste discrimination faced by low caste untouchables are the main reasons for low education attainment among the low caste and low income groups. The shift in the government policy towards privatisation of higher education also has taken the education beyond the reach of low income household. The caste discrimination result into high drop out among the scheduled castes. In the end based on the empirical results relevant (caste) group specific and income group specific policies are proposed to promote higher education among the low castes and low income groups. JEL Codes: 123, J24, D63, J71
Bacterial cellulose grown from kombucha: Assessment of textile performance properties using fashion apparel tests
Authors: Wood Jane , Verran Joanna , Redfern James 
Published: January 2023

Bacterial cellulose (BC) has been suggested as a sustainable alternative textile for apparel. Previous studies have evaluated the production of BC sheets and the suitability of these to form garment shapes. The laboratory measured physical performance characteristics of BC from an apparel perspective remain relatively unexplored. The aim of this study was to produce reproducible sheets of BC, enabling the evaluation of the performance of the BC in an apparel textile testing context, and comparison to other textile materials. Grown in sterile black tea with glucose, the BC presented as a mesh of non-woven nanofibers, and thus comparison was made with three non-woven fabrics. It has also been suggested that BC could be used as ‘vegetable’ leather; therefore, performance comparisons were conducted with animal skins. Utilizing British, European and International standard test methods, the selected fabrics were evaluated for their performance in tensile, elongation, moisture vapor permeability and abrasion tests, relevant for an apparel end-use. Tensile strength testing revealed that BC is weaker than its animal counterparts but does display similar physical characteristics at the point of failure; however, it displayed a higher tensile strength than the non-woven fabrics chosen for comparison. BC was the least breathable and most moisture-retentive of all the fabrics tested, raising questions regarding its suitability and comfort for apparel applications in its untreated state. However, BC displayed superior performance when tested for resistance to abrasion, suggesting it could be best utilized in the form of encapsulated patches in items subjected to this type of damage.
Translation and cross-cultural adaptation of the Integrated Palliative Care Outcome Scale in Hindi: Toward capturing palliative needs and concerns in Hindi speaking patients
Authors: Bhardwaj Tushti , Chambers Rachel L , Watson Harry , Srividya  , Higginson Irene J , Hocaoglu Mevhibe B 
Published: January 2023

Background: Culturally relevant patient-centered outcomes tools are needed to identify the needs of patients and to assess their palliative care concerns. Aim: To translate and culturally adapt the Integrated Palliative Care Outcome Scale (IPOS) into Hindi. Design: The study applied a standardized methodology entailing six phases for translation and content validation: equivalence setting through a three-step process; forward translation; blind backward translation; expert review by a panel of the POS team; cognitive de-briefing with patients; and proof-reading of the final tool. All interviews and focus groups were audio-recorded, transcribed and analyzed using content analysis. Setting/participants: (1) Healthcare professionals including doctors, nurses, psychologists, counselors, and volunteers working in Indian palliative care settings with expertise in both English and Hindi languages; (2) Hindi speaking patients diagnosed with cancer who were receiving palliative care in community settings. Caregivers, palliative care experts, and language translators contributed to the translation procedure. Results: Phrases like nausea, poor appetite, drowsiness, and depression were difficult to translate into Hindi. Response categories “occasional” and “sometimes” were overlapping. All items, instructions and response categories were simple to understand. A visual thermometer is a unique feature of Hindi IPOS to facilitate responses from less educated patients. Conclusion: Hindi IPOS has face and content validity for use in clinical practice and research. The Hindi IPOS has implications beyond Indian palliative care settings. Millions of Hindi speakers can now respond to IPOS, and have a tool for communicating their palliative care needs in their mother tongue to inform patient-centered care.
The Pre-Adaptation of a Stroke-Specific Self-Management Program Among Older Adults
Authors: Reistetter Timothy , Hreha Kimberly , Dean Julianna M. , Pappadis Monique R. , Deer Rachel R. , Li Chih-Ying , Hong Ickpyo , Na Annalisa , Nowakowski Sara , Shaltoni Hashem M. , Bhavnani Suresh K. 
Published: January 2023

Objectives: Managing multimorbidity as aging stroke patients is complex; standard self-management programs necessitate adaptations. We used visual analytics to examine complex relationships among aging stroke survivors’ comorbidities. These findings informed pre-adaptation of a component of the Chronic Disease Self-Management Program. Methods: Secondary analysis of 2013–2014 Medicare claims with stroke as an index condition, hospital readmission within 90 days ( n = 42,938), and 72 comorbidities. Visual analytics identified patient subgroups and co-occurring comorbidities. Guided by the framework for reporting adaptations and modifications to evidence-based interventions, an interdisciplinary team developed vignettes that highlighted multimorbidity to customize the self-management program. Results: There were five significant subgroups ( z = 6.19, p < .001) of comorbidities such as obesity and cancer. We constructed 6 vignettes based on the 5 subgroups. Discussion: Aging stroke patients often face substantial disease-management hurdles. We used visual analytics to inform pre-adaptation of a self-management program to fit the needs of older adult stroke survivors.
Petechial Rash in Neonates: Management Algorithm
Authors: Yadav Dinesh , Chandra Jagdish 
Published: January 2023

Petechial rash in neonatal period commonly results from thrombocytopenia. Disorders of coagulation and those affecting vascular integrity may cause purpuric rash. Common causes of neonatal thrombocytopenia include early onset thrombocytopenia (onset < 72 hours) due to placental insufficiency, perinatal asphyxia, perinatal infections and DIC. Atloimmune thrombocytopenia is rare but potentially serious disorder. Late onset thrombocytopenia (onset > 72 hours) almost always results from sepsis and NEC. Intrauterine infections and perinatally acquired dengue and chikungunaya infections also need to be considered in appropriate clinical settings. Infantile acute hemorrhagic edema, meningococcal rash and blue berry muffin baby are causes of purpuric rash without thrombocytopenia and may require exclusion. In addition to these, this review also includes uncommon causes of petechial/ purpuric rash in neonatal period. Clinical approach to diagnosis and management are discussed.