Miracle-dz/UniFAR-FTUs huggingface dataset:
Hollow Manganese Silicate Nanotubes with Tunable Secondary Nanostructures as Excellent Fenton‐Type Catalysts for Dye Decomposition at Ambient Temperature

Fast diffusion rate of ions and sufficiently exposed active sites are important for catalysts. As a superior but rarely studied Fenton‐type catalyst, unsatisfactory ion diffusion rate of manganese silicate is the exact obstacle for improving its catalytic activity. Here, hierarchical manganese silicate hollow nanotubes (MnSNTs) assembled by tunable secondary structures are precisely fabricated by an efficient hydrothermal method and systematically investigated as Fenton‐type catalysts for the first time. The open end and thin mesoporous walls of the hollow nanotubes help shorten the diffusion pathway of ions and enhance the mass transport. Moreover, the numerous standing small nanosheets endow MnSNTs with higher specific surface area and larger pore volume than the large nanosheets and nanoparticles, and thus expose more active sites for adsorption and catalytic decomposition. MnSNTs are highly efficient in adsorption and catalytic decomposition of cationic dyes with an excellent recycling stability. About 98.1% of methylene blue is catalytically decomposed in 45 min at an ambient temperature of 25 °C. When the temperature increases to 60 °C, only 2 min are required, with a 530% higher kinetic constant than reported.
In situ ir spectroscopy in ionic liquids : Toward the detection of reactive intermediates in transition metal catalysis

In situ IR spectroscopy is used for the in situ investigation of the mechanisms of two selected reactions. The ReactIR proves to be a versatile tool for reaction monitoring and for the on-line collection of kinetic information. With this method, the direct alkylation of N-methylimidazole with 1-bromobutane can be shown to proceed via S N 1 or electron transfer rather than S N 2. For easy and straightforward detection and characterization of catalytically reactive intermediates in the Suzuki-Miyaura reaction, though, the method seems to be not sensitive enough, but it can help to gain insight into the reaction mechanism.
Investigation of Visual Stimulus Signals Using Hue Change for SSVEP

This study focuses on the problem of eye irritation when measuring steady-state visual evoked potentials (SSVEPs) using a brain–computer interface and aims to clarify experimentally visual stimulus signals that do not cause discomfort to users. To this end, a method is proposed that introduces a flash stimulus in which the color is changed by changing its hue. This reduces the change in brightness while providing a color change, thereby facilitating visual stimulation with less discomfort. In experiments conducted, flash stimuli of the primary colors red, green, and blue and colors with different hues of 5–45° from these primary colors were generated to investigate the algorithm accuracy of SSVEP and discomfort. Subjective questionnaire and CFF values, which are ophthalmic parameters, were obtained for the subjects and compared to the discrimination rate. As a result of the comparison, it was confirmed that the fatigue level of the visual stimulus generated by the proposed hue change was lower than that of the conventional black-and-white stimulus. It was also confirmed that the combination of the hue difference and frequency could obtain the same discrimination rate as the conventional method.
Clinicoepidemiological profile and practices to manage dizziness in primary care setting: results from an Indian registry

Background: Dizziness is a common symptom encountered in primary care settings by general physicians and specialists. This study evaluated the clinicoepidemiological profile and management practices in patients with dizziness in an Indian primary care setting. Methods: This prospective, multicentric, observational study was conducted between November 2018 and June 2019. Patients aged≥18 years presenting with clinical features of dizziness were eligible. The study data included demographics and socioeconomic details, complete medical history, medication and concomitant medication use, and the cause and pattern of dizziness. Patients had a baseline visit and two follow-up visits at weeks 1 and 4. Results: Overall, 1000 patients with a mean age of 45.1 years were included (women: 51.5%; men: 48.5%). Of these, 762 reported dizziness as a primary complaint; whereas, 238 reported it as a complaint associated with nausea, vomiting and light-headedness on visit 1, which reduced on subsequent visits. Around 34% of the patients were unemployed and 59% belonged to the upper-middle class. The most common co-morbidities were hypertension and diabetes mellitus (n=132, each). More than 50% of the patients presented with vestibular cause (n=577), followed by neurologic (n=179), metabolic (n=84) and psychiatric (n=61) etiologies. Betahistine (n=581) and prochlorperazine (n=312) were the commonly prescribed medicines for primary and associated complaints. The most commonly used concomitant medications were telmisartan (n=53), glimepiride plus metformin (n=40), metformin (n=32) and ondansetron (n=29). Conclusions: Dizziness has a multifactorial origin necessitating a multifactorial treatment approach. Betahistine and prochlorperazine were the most commonly prescribed drugs in the primary care setting (CTRI/2018/11/016408).
Preneoplastic Lesions Fimbria Early Diagnosis Markers Underlying Timeline Mechanisms at The Origin of Ovarian Cancer in BRAC1/2 Patients: Case Reports Based on Proteogenomic Study

Background : BRCA 1 or 2 mutations have been known to be drivers of high-grade serous ovarian carcinomas (HGSC). As no efficient screening is currently available, a bilateral prophylactic salpingo-oophorectomy is the recommended procedure to avoid this often lethal carcinomas. However, a proportion of BRCA mutation carriers refuse to undergo this procedure due to significant impacts on quality and quantity of life, especially if a hormone replacement therapy is contra-indicated. Such decision expose them to developing a pelvic serous carcinoma. A better undersanding of high-grade serous cancer pathogenesis, rather stemming from fallopian tubes than from ovary itself, makes interesting a two-step prophylactic strategy in which tubes are removed as soon as possible, followed by oophorectomies at the time of menopause. Thus women are protected against HGSC with no immediate need of an HRT. Following this idea and considering the concept of junctional “hot spots “ (called mesothelo-müllerian junctions) for the development of HGSC, we suggested as first step to perform a bilateral prophylactic radical fimbriectomy rather than salpingectomy with a delayed oophorectomy (RF/DO). This operation was tested in a national phase 2 trial from 2011-2014 (NCT01608074). Radical Fimbriectomy (RF) consists of the surgical removal of both fallopian tubes along with a tiny part of the adherent ovary to suppress the tubal source of possible dysplastic cells from which can stem a high-grade invasive tumor, through stepwise cellular and genomic altereations ranging from p53 signatures to serous tubal intraepithelial carcoinoma (STIC), just before genuine invasive HGSC, through intermediate aspects (STIL) and (TILT). Methods : In this context, we carried out an in-depth proteomics analysis of these “pre-invasive ” epithelial lesions based on spatially resolved proteomic/ and bioinformatics systems biology platforms platform guided by immunohistochemistry (IHC) technique. Results : Specific markers related to each preneoplastic lesions and in particular from normal to p53 signatures were evaluated. We identified EIF3B, MOB1B and Emilin2, CAVIN1 as bad prognosis markers of P53 signature whereas CAVIN2, SPTANi, FBLN5 as good prognosis markers. Among the novel markers identified, mutated proteins as well as hidden proteins translated from alternative ORF Proteome have been sequenced and characterized. Conlusion : In summary, our results represent a novel pioneer approach to identify the unique under investigated markers that can characterize the molecular mechanism occurring in the preneoplastic lesion in fimbria at the origin of the HGSC.
The Development of Critical Thinking Assessment Instruments on Thematic Learning of Life Events in the Fifth Class of Elementary School Students

This study aims to: (1) investigate the feasibility level of developing a critical thinking assessment instrument in the fifth grade thematic lesson of state primary school number 107396 Paluh Merbau, (2) find out the level of effectiveness of critical thinking assessment in the fifth grade thematic lessons at the school, and (3) find out the practicality level of the assessment instrument for critical thinking in the fifth grade. The subject in this study is students of class V state primary school number 107396 Paluh Merbau and the object in this study is the developed critical thinking instruments. The data collection instruments used consisted of learning outcomes test and observation. The results show that the product of this critical thinking assessment instrument is validated by three expert evaluation lecturers who have expertise in their fields. The results of the analysis on three aspects of the evaluation expert are the aspect of content feasibility before the revision received a score of 95% with the criteria very feasible. In the construction aspect, it obtains a score of 87.50% with the criteria very feasible and the linguistic aspect obtains a score of 79, 16% with the feasible criteria. The product of critical thinking assessment-based test instruments for mapping primary school student learning outcomes on cognitive competencies is able to facilitate and benefit teachers in conducting assessments. It is in line with the formulation of the problem which states that critical thinking assessment-based test instruments are for mapping student learning outcomes in effective critical thinking used by the teacher in assessing students' critical thinking assessment.
Implementation of competence based curriculum in the context of colonial education system in Tanzania

With the aim of producing secondary education graduates with adequate knowledge and skills that could enable them to survive in the ever-changing world, Tanzania introduced the competence-based curriculum in 2005. The curriculum regards learners to have the capability to construct and apply knowledge beyond the classroom context. Since the Tanzania education system passed through different eras, this article assesses the influence of the historical background of education systems on stakeholders’ perspectives on adoption and practice in teaching, learning, and assessment in the competence-based curriculum. Semi-structured interview and focused group discussion was used to collect data on teaching, learning, and assessment methods employed by both teachers and learners. The data were analyzed by thematic analysis. The results show the elements of the colonial rule education system influences classroom teaching, learning, and assessment practices. Since colonial rule educated few Africans to be employed to serve in the colonial administration, this has contributed to school teaching learning and assessment practices to be perceived as stepping stone for formal employment and not the means of equipping useful and applicable knowledge and skills to learners’ life. The focus of classroom instructional practices is to enable learners to memorize the facts and be able to reproduce in the examinations to qualify for further studies and formal employment. This is a setback for quality instructional methods that promote the acquisition of livelihood skills. Given this, the study recommends key stakeholders involved in curriculum development to redefine the roles of school education to align with classroom instructional practices.
How to Improve Performance of Lecturer: A Case Study of School of Health Sciences in Capital City of Indonesia

This research is aimed to analyze and determine the effect of self efficacy, organizational culture and leadership on work motivation and its implications on performance of permanent lecturers of School of Health Sciences (SHS) in province of Jakarta, the capital city of Indonesia. The analysis model uses Structural Equation Model (SEM). Partially self-efficacy provides most dominant contribution in influencing work motivation. Simultaneously, self efficacy, organizational culture, leadership and work motivation have a positive and significant effect on performance of permanent lecturers with a contribution of R of 79%, partially leadership provides most dominant contribution in influencing performance. The respondents were those who working as permanent lecturers in College of Health Sciences, while the survey was conducted to 325 lecturers. The respondents must be have at least master degree as their educational background. Another finding from the results of this study is that work motivation acts as a partial mediating of self-efficacy and organizational culture toward performance of permanent lecturers. The advice given to increase motivation is to focus on efforts to increase self efficacy of permanent lecturers, especially in dimension of magnitude. While to improve performance is by focusing on efforts to improve leadership, especially in dimension of academic leadership.
STUDY OF CHLORIDE CONCENTRACTION FROM DIFFERENT LABORATORY SEWAGE WATER IN GADHINGLAJ TAHSIL, MAHARASHTRA

The present study reveals the pollution status of laboratory sewage water of Gadhinglaj tahsil (Kolhapur dist.) form Maharashtra. Gadhinglaj is located at latitude 16 0 13' 26" N and longtiude 74 0 26' E. Gadhinglaj tahsil comprises 90 villages. The population of Gadhinglaj is 216257. The samples were collected from six different college science laboratories during September 2014. In this investigation the physico-chemical parameters like, pH, EC, alkalinity, total hardness, calcium, magnesium, chloride has been analyzed. The result shows variations in physico-chemical parameters site to site and compared with (WHO 1994). In present investigation pH is slightly alkaline in all samples. The chloride value ranged between 198.8 mg/L to 454.4 mg/L. All sites have higher chloride values. This lab sewage directly connected to drainage. Drainage water released in the river. Therefore river water get polluted. For avoid pollution proper treatment should be done before release in drainage system.
Preparation and Characterization of Thin Films Derived from Polyelectrolyte-Surfactant Complexes based on Cationic Polymer - JR-400 and Anionic Surfactant - Sodium Dodecylbenzenesulfonate

Thin films derived from polyelectrolyte-surfactant complexes on the basis of cationic polymer – JR-400 and anionic surfactant – sodium salt of dodecylbenzenesulfonate (SDDBS) were isolated from the equimolar mixture of aqueous solutions of polyelectrolyte and surfactant. Characteristic bands of functional groups of JR-400 and SDDBS involved into complexation reaction were identified from FTIR spectra. Elemental composition and morphology of thin layers of polyelectroly te-surfactant complexes deposited on SiO2 surface were evaluated by SEM and AFM. The height of polyelectrolyte-surfactant complexes evaluated from AFM and SURFUS data is in good agreement and arranged between 10 and 50 nm. The XRD analysis of thin films revealed that polyelectrolyte-surfactant complexes have amorphous structure with a broad halo near 20 0 . Contact angle measurements show that the glass surface treated by polyelectroly tesurfactant complexes is more hydrophobic than that of untreated glass surface due to replacement of surfactant brushes on air. Thin films of polyelectrolyte-surfactant complexes may be perspective materials as antifogging materials.
(Mis)Conceptualising Empowerment: Flaws in Community-driven Development Project Design

Development institutions have adopted models of community development that prioritise empowerment. However, many of these models have transformed a collective, process-oriented understanding of empowerment into one that focuses on individual outcomes and results all too often in project failure. This article presents a case study of a World Bank community-driven development (CDD) project implemented in agrarian settlements in north-eastern Brazil. Using mixed methods, the article finds that because this CDD approach failed to conceptualise power differences, stemming from education, income and the rural–urban divide, it overlooked the disadvantage marginalised communities would have when interacting with technical agencies and soliciting contractors. The power differences created by these inequities enabled those very technical agencies and contractors intended to support CDD subprojects to take advantage of participant communities through providing low-quality services and products. The project also failed to provide quality technical assistance for a duration sufficient to develop the skills community members required to carry out successful, productive subprojects. These findings suggest that CDD projects need to incorporate a broader conception of empowerment that addresses group-level power differences to transform the relations between participants and those on whom they depend, and thereby contribute to project success.
Multi-Enzyme Systems in Flow Chemistry

Recent years have witnessed a growing interest in the use of biocatalysts in flow reactors. This merging combines the high selectivity and mild operation conditions typical of biocatalysis with enhanced mass transfer and resource efficiency associated to flow chemistry. Additionally, it provides a sound environment to emulate Nature by mimicking metabolic pathways in living cells and to produce goods through the systematic organization of enzymes towards efficient cascade reactions. Moreover, by enabling the combination of enzymes from different hosts, this approach paves the way for novel pathways. The present review aims to present recent developments within the scope of flow chemistry involving multi-enzymatic cascade reactions. The types of reactors used are briefly addressed. Immobilization methodologies and strategies for the application of the immobilized biocatalysts are presented and discussed. Key aspects related to the use of whole cells in flow chemistry are presented. The combination of chemocatalysis and biocatalysis is also addressed and relevant aspects are highlighted. Challenges faced in the transition from microscale to industrial scale are presented and discussed.
Optimum Layout of Low Power LC-Based Digitally Controlled Oscillator for Bluetooth Low Energy in a 4G/5G LTE System

This paper presents an optimum layout method of a low-power, digitally controlled oscillator (DCO) for a Bluetooth low-energy (BLE) transceiver in a 4G/5G LTE system. For the optimal LC-based DCO layout, three different layouts, including different gm cell locations and an Al metal layer, were implemented, and performance was compared and verified for BLE application. The implemented neck DCO (NDCO), where the gm cell is located in the neck of the main inductor, showed superior performance compared to other layouts in terms of low phase noise and low power consumption. The designed NDCO had a low phase noise of −116.1 dBc/Hz at 1 MHz with a 0.5 mW power consumption. The supply voltage and oscillation frequency range were 0.8 V and 4.7–5.7 GHz, respectively, and the NDCO designed with the optimal layout had a good figure-of-merit of −192.6 dBc/Hz.
Hydrological modeling in a basin of the Brazilian Cerrado biome

The Brazilian Cerrado biome (BCB) is among 25 biodiversity hotspots identified worldwide, and covers the recharge area of important aquifers and rivers in South America. The increase in deforestation has been threatening water availability in this region. In order to assist in the water-resource management of the BCB, this study models the daily streamflow in a basin of the Cerrado, using two approaches: a process-based model (Soil and Water Assessment Tool - SWAT) and the data-driven model (Artificial Neural Network - ANN). The performance of the models was evaluated by the Nash-Sutcliffe coefficient (NSE), coefficient of determination (R 2 ) and flow-duration-curves (FDC). The results indicate that SWAT (NSE > 0.61; R 2 > 0.68) and ANN (NSE > 0.91; R 2 > 0.79) models are suitable tools in daily streamflow modeling of the studied basin, with the ANN model being the most accurate. Based on FDC, the ANN model was also better than the SWAT model for all frequencies evaluated. Thus, the ANN model is a promising new approach for daily streamflow modelling in this region. Moreover, the results of this study can help water-resource managers in planning and implementing appropriate water allocation and conservation measures in the Brazilian Cerrado biome.
Interest of a short plasma treatment to achieve SI-SIO2-SI bonded structures

Plasma treatment assisted wafer bonding has been under investigation for some time for its ability to induce strong bonding even at low temperature treatment (<400°C). Still, such techniques are today at the stage of Research activities. One of the main problems generally occurring with plasma treatment is that many bonding defects (e.g. bubbles, voids.) are revealed during low temperature annealing, for instance in the [200°C-500°C] range of temperature. In this paper, we will focus on bonding energy and quality enhancement allowed by O 2 plasma activation of surfaces before bonding as well as characterization of such treated surfaces. Effects of a short plasma treatment on Si and SiO 2 surfaces are reported hereafter. Oxygen plasma treatment is shown to leave smooth wafer surfaces. Oxygen sputtering and implantation were investigated. Existence of a low-density subsurface layer has been pointed out by interfacial X-ray reflectivity. The role of this subsurface layer in the bonding energy increase is discussed.
Electrodeposition of ternary Zn–Ni–Sn alloys from an ionic liquid based on choline chloride and their characterisation

Ternary Zn–Ni–Sn alloy coatings with a range of compositions were potentiostatically electrodeposited on steel substrates from a deep eutectic solvent-based electrolyte. The effect of electrodeposition potential on the morphology, chemical and phase compositions, and corrosion behaviour of the deposits was analysed. The co-deposition mechanism of Zn–Ni–Sn alloys was found to be normal whereby increasing the electrodeposition potential enhanced the ternary alloy Zn content (active element) and greatly suppressed the alloy Sn and Ni content (noble elements). The X-ray diffraction phase analyses showed that Ni in the deposits exists in the form of metal compounds including β-Ni3Sn2 as well as γ-NiZn3. The improved corrosion resistance observed in all ternary alloys was attributed to their compact morphology, phase content and chemical composition. Comparison of corrosion performances shows that ternary Zn–Ni–Sn alloys are superior for sacrificial corrosion protection of steel metallic substrates compared to binary Zn–Sn and Zn–Ni alloys.