Miracle-dz/UniFAR-FTUs huggingface dataset:
Yield components detection and image-based indicators for non-invasive grapevine yield prediction at different phenological phases

Forecasting vineyard yield with accuracy is one of the most important trends of research in viticulture today. Conventional methods for yield forecasting are manual, require a lot of labour and resources and are often destructive. Recently, image-analysis approaches have been explored to address this issue. Many of these approaches encompass cameras deployed on ground platforms that collect images in proximal range, on-the-go. As the platform moves, yield components and other image-based indicators are detected and counted to perform yield estimations. However, in most situations, when image acquisition is done in non-disturbed canopies, a high fraction of yield components is occluded. The present work’s goal is twofold. Firstly, to evaluate yield components’ visibility in natural conditions throughout the grapevine’s phenological stages. Secondly, to explore single bunch images taken in lab conditions to obtain the best visible bunch attributes to use as yield indicators.In three vineyard plots of red (Syrah) and white varieties (Arinto and Encruzado), several canopy 1 m segments were imaged using the robotic platform Vinbot. Images were collected from winter bud stage until harvest and yield components were counted in the images as well as in the field. At pea-sized berries, veraison and full maturation stages, a bunch sample was collected and brought to lab conditions for detailed assessments at a bunch scale.At early stages, all varieties showed good visibility of spurs and shoots, however, the number of shoots was only highly and significantly correlated with the yield for the variety Syrah. Inflorescence and bunch occlusion reached high percentages, above 50 %. In lab conditions, among the several bunch attributes studied, bunch volume and bunch projected area showed the highest correlation coefficients with yield. In field conditions, using non-defoliated vines, the bunch projected area of visible bunches presented high and significant correlation coefficients with yield, regardless of the fruit’s occlusion.Our results show that counting yield components with image analysis in non-defoliated vines may be insufficient for accurate yield estimation. On the other hand, using bunch projected area as a predictor can be the best option to achieve that goal, even with high levels of occlusion.
The commercialization of social media stars: a literature review and conceptual framework on the strategic use of social media influencers

Abstract This review provides insight into the research on the strategic use of social media influencers. A search in the Scopus database yielded a total of 154 peer-reviewed academic publications focussing on influencer marketing, published mostly in the last three years (2018–2020). Most of these studies were empirical and used survey research, an experimental design, content analysis, or interview methodology. While a few studies examined how influencers can incite behavioural change or affect public opinion, the majority of studies focussed on the use of influencers as a commercial marketing tactic. Using Stern’s Revised Communication Model for Advertising as a theoretical framework, the studies were classified according to three research characteristics: source, message, and audience. The first research stream focussed on the perspectives of influencers and communication professionals. The second stream was concerned with the content strategies used by influencers in their sponsored posts. The third research stream focussed on the appeal of influencers and the efficacy of their sponsored recommendations. Several studies in the third stream were concerned with the transparency of this covert marketing tactic. The paper concludes with a future research agenda and implications for marketing practice and public policy.
Acute Toxicity Ethanol Extract of Bidara Leaves (Ziziphus spina-christi L.) Against Liver and Kidney Function of White Rats

Bidara plants have the efficacy as antioxidants, anti-inflammatory,antimicrobial, anti-fungal and prevents tumours. Bidara is efficacious to protecthuman DNA cells caused by damage from actinic radiation. This study aims toexplore the acute toxicity test of the ethanol extract of Bidara leaves using whitemice as experimental animals. A total of 30 white rats (Rattus norvegicus) Wistarstrain obtained from the Eureka Research Laboratory (Palembang, Indonesia)weighing between 200 - 250 grams. After one week of adaptation, the mice wererandomly divided into the following six groups, each containing five animals:Normal control group and Bidara extract group (50mg/kg BW; 150 mg/kg BW;450 mg/kg BW; 1350 mg/kg BW; and 4050 mg/kg BW). This study shows thatthe extract of Bidara leaves has a relatively high toxic dose, namely at a dose of4050 mg/kg BW. Bidara leaf extract at doses below 1500 mg/kg BW, shows notoxic effect on the liver. In conclusion, bidara leaf extract has a toxic dose above4000 mg/kg BW in Wistar white rats.
A study of stress and psychological well-being among senior college teachers

Teaching is a profession associated with high stress, and teaching responsibilities include balancing the demands of the pupils and concerns about their behavior, and speedy decision-making is often required. So, in the Indian context psychological wellbeing of the teacher is very much extensively studied. Objectives – To examine the psychological wellbeing and stress among Senior College Teachers. To investigate the gender differences in psychological wellbeing and stress among Senior College Teachers. Sample – Sample consists of a subset population selected to participate in a research study. In this study total sample consists of 100 Senior College Teachers (50 male Senior College Teachers and 50 female Senior College Teachers) from different colleges of Beed city. The sample was categorized into two groups on the basis of gender. Male and Female Senior College Teachers. In each group 50 samples were taken. Age group of samples was 25 to 50 years. Only those students were selected for the study who had voluntarily given the assurance to participate in the study. Hypotheses – There will be no significant difference between male and female Senior College Teachers with respect to psychological wellbeing. There will be no significant difference between male and female Senior College Teachers with respect to stress. Tools 1. Psychological wellbeing scale by Dr. Devendra Singh Sisodia and Pooja Choudhary this measures the psychological wellbeing. 2. Social readjustment rating scale also known as The Holmes-Rahe Life Stress Inventory. Conclusion – 1. Female teacher was higher in psychological wellbeing than male Senior College Teachers. 2. Male Senior College Teachers are higher on stress than female Senior College Teachers.
PENGETAHUAN UNTUK MENGHASILKAN INOVASI PENGAJARAN DALAM KALANGAN GURU INOVATIF PENDIDIKAN ISLAM

Knowledge is very important in the production of an innovation. In creating teaching innovations, teachers need to have a variety of specific knowledge. Unfortunately, the lack of knowledge is one of the issues of teachers' inability to innovate. Therefore, there is a need to address the methods used by innovative teachers to overcome this problem. This study was conducted qualitatively on two Innovative Islamic Education Teachers (IIET). Half-structured interviews were conducted with them. The findings showed two major themes, namely; how to increase knowledge, and collaboration. There were four sub-themes for knowledge enhancement, namely; online guidelines, virtual courses, attending workshops, and meeting with experts. Meanwhile, the sub-themes for collaboration were; 1) collaborating with fellow teachers, and 2) collaborating with students. Keywords: Knowledge, Innovative teacher, teaching innovation, Islamic education Abstrak: Pengetahuan sangat penting dalam penghasilan sesuatu inovasi. Dalam menghasilkan inovasi pengajaran, guru perlu mempunyai pengetahuan tertentu yang pelbagai. Malangnya kekurangan pengetahuan adalah antara isu ketidak mampuan guru untuk menghasilkan inovasi. Oleh itu, terdapat keperluan untuk merungkai kaedah yang digunakan oleh guru inovatif bagi mengatasi masalah ini. Kajian dijalankan secara kualitatif terhadap dua Guru Inovatif Pendidikan Islam (GIPI). Temu bual separas struktur dijalankan terhadap mereka. Dapatan menonjolkan dua tema besar, iaitu; cara menambah pengetahuan, dan kolaborasi. Sub-tema bagi cara menambah pengetahuan ada empat, iaitu; panduan dalam talian, kursus secara maya, menghadiri bengkel, dan bertemu dengan pakar. Sub-tema bagi kolaborasi pula ada dua, iaitu; kolaborasi dengan rakan guru, dan kolaborasi dengan pelajar. Kata kunci: Pengetahuan, Guru inovatif, inovasi pengajaran, Pendidikan Islam
Phase behavior of an ionic surfactant with mixed monovalent/polymeric counterions

A "complex salt" of cetyltrimethylammonium (CTA(+)) with short (30 repeating units) polyacrylate (PA(-)) counterions has been synthesized. The phase diagrams of its aqueous mixtures with either the surfactant cetyltrimethylammonium acetate (CTAAc), or the polyelectrolyte NaPA, have been studied by visual inspection through crossed polarizers and by small-angle X-ray scattering. Both of the ternary phase diagrams are strikingly simple, containing only micellar, cubic micellar, and hexagonal phases. In the CTAPA/CTAAc/water system, the surfactant forms essentially spherical micelles above ca. 50 wt % of water, regardless of the counterion composition, and the system may serve as a model for charged colloids with mixed monovalent/polymeric counterions. The interactions between micelles varies from repulsive to attractive as the fraction of monovalent counterions is dec eased. This results, first, in a liquid-liquid phase separation between a concentrated branch and a dilute branch of the micellar phase and, finally, a crystallization of micelles into a cubic (Pm3n) phase in equilibrium with essentially pure water. Small fractions of polymeric counterions "melt" the cubic phase. This is attributed to heterogeneity: A small proportion of micelle pairs that share polymeric counterions experience strong attractions. In CTAPA/NaPA/water mixtures, the micelle-micelle interactions switch from attractive to repulsive as the NaPA content is increased. A similar effect occurs with added NaAc. Monte Carlo simulations of interactions between surfactant aggregates neutralized by mixed polymeric and monovalent counterions qualitatively reproduce all experimental trends and show that the dominating source of the attraction between the aggregates is polyion bridging. (Less)
Cyclical fluctuations of economic growth and monetary policy in Nigeria: does fiscal policy also matter?

ABSTRACT This study investigated the key monetary policy determinants of economic recovery, confirmed the optimum monetary policy target, and assessed the moderating role of fiscal policy in achieving economic growth in Nigeria. A plucking model of Friedman was estimated with Markov-switching, while threshold regression techniques were employed to confirm the monetary policy rate that can ensure economic recovery. Quarterly data, sourced from the National Bureau of Statistics and the Central Bank of Nigeria, between 2010:Q1 and 2019:Q1 were utilised. The results showed a significant asymmetry in the growth cycles with both monetary and fiscal policy found to be pro-cyclical, while increase in reserves in the regime of slow economic growth was not found to be growth supportive. The threshold analyses show that the Treasury Bill rate is pro-economic growth when monetary policy rate is at least 7.8%. While the Treasury Bill is a better monetary instrument that can deliver improved economic growth in Nigeria, the study recommends pro-cyclical policy coordination between monetary and fiscal policy to achieve economic recovery in Nigeria.
Liming and Fertilization on the Growth of Eucalyptus benthamii and Eucalyptus dunnii in Brazil

The use of mineral fertilizers has shown substantial productivity gains for the vast majority of Eucalyptus forests. The objective of the present work is to evaluate the response of Eucalyptus benthamii and Eucalyptus dunnii at 48 months of age, to different doses of limestone, soluble NPK, and natural phosphates. The experiment was conducted in a plantation located in South Brazil. The experimental design was a randomized block with three replications, and the treatments consisted of combinations of doses of natural phosphate (NP) (0, 400, 600, and 800 kg ha−1 of Gafsa reactive NP P2O5), limestone (0, 3, 5, 6, and 10 Mg ha−1 of dolomitic limestone), and mineral fertilizer–NPK (0, 100, 133, and 167 kg ha−1 of mixed mineral fertilizer 6-30-6). Height and diameter measurements were taken after 48 months. There was a positive response with the increase of NPK fertilizer dose, and the dose where the highest averages were obtained was 167 kg ha−1. The doses of NP had significant effects on the increase of the variables up to 600 kg ha−1, also the averages decreased with the increase of the dosage. For liming, positive results were observed from its absence to the maximum dose, justifying its use in minimum dose in order to supply the necessary amounts of Ca and Mg in the soil. The use of NPK, natural phosphate, and limestone is recommended, causing an increase in the growth of both species of Eucalyptus studied.
Load approximation for uncertain topologies in the low-voltage grid

Smart grids allow operators to monitor the grid continuously, detect occurring incidents, and trigger corrective actions. To perform that, they require a deep understanding of the effective situation within the grid. However, some parameters of the grid may not be known with absolute confidence. Reasoning over the grid despite uncertainty needs the consideration of all possible states. In this paper, we propose an approach to enumerate only valid potential grid states. Thereby, we allow discarding invalid assumptions that poison the results of a given computation procedure. We validate our approach based on a real-world topology from the power grid in Luxembourg. We show that the estimation of cable load is negatively affected by invalid fuse state combinations, in terms of computation time and accuracy.
429 Long-term analysis of MASTERKEY-265 phase 1b trial of talimogene laherparepvec (T-VEC) plus pembrolizumab in patients with unresectable stage IIIB-IVM1c melanoma

Previous findings from the MASTERKEY-265 phase 1b study showed that the combination of T-VEC and pembrolizumab was well tolerated and produced a high complete response (CR) rate of 43% in patients with advanced melanoma.1 The 3-year progression-free survival (PFS) and overall survival (OS) rates at that time were 53.6% and 71%, respectively. Here, we report the results of the long-term follow-up efficacy analyses.The MASTERKEY-265 phase 1b trial (NCT02263508) was an open-label, single-arm study that enrolled patients who had unresectable, stage IIIB-IVM1c melanoma with injectable, measurable lesions and no prior systemic treatment. T-VEC was administered intralesionally at the approved dosing starting day 1 of week 1. Pembrolizumab (200 mg) was administered intravenously Q2W beginning on day 1 of week 6. The maximum treatment period was 2 years. The primary endpoint was dose-limiting toxicities; key secondary endpoints included objective response rate and PFS per modified irRC, OS, and safety.As of the data cutoff (Mar 2, 2020), all 21 patients enrolled were off treatment; 6 died and 15 are in long-term follow-up. The median follow-up time was 58.6 months (range: 1.4–61.6). The CR rate remained 43% (9/21 patients). Twelve of the 13 responders (92.3%) are still in response, including all 9 patients with a CR. Median duration of response was not reached (range: 2.8+–54.3+ months). Median PFS and OS were not reached at the data cutoff. KM estimates of 4-year PFS and OS rates were 55.9% and 71.4%, respectively, which have held stable since the 3-year analysis. Patients who achieved a CR or partial response had better OS (p=0.0056) compared to those who did not respond. Median OS for non-responders was 24.4 months and was not reached for responders. No additional safety signals were detected.At almost 5 years of follow-up, median PFS and OS were not reached for patients treated with the combination of T-VEC and pembrolizumab in this phase 1b study of unresectable metastatic melanoma. 92% of responders remained in response with improved OS observed in responders compared with non-responders. The corresponding randomized phase 3 trial has completed enrollment and is currently ongoing.NCT02263508The study was approved by the Ethics Board of each institution involved in this study and can be produced upon request.Long G, Dummer R, Andtbacka R, et al. Follow-up analysis of MASTERKEY-265 Phase 1b (ph1b) trial of talimogene laherparepvec (T-VEC) in combination (combo) with pembrolizumab (pembro) in patients (pts) with unresectable stage IIIB–IVM1c melanoma (MEL). Pigment Cell Melanoma Res 2019;32:133–134.
New imaging and deflection concept for probe‐forming microfabrication systems

A projection lens with an integrated deflection yoke has been developed as part of a probe‐forming system for microfabrication. A single yoke is located at the center of the polepiece gap for the purpose of minimizing deflection aberrations through compensation. The concept of a linked imaging trace generates a shaped beam at the target plane. The following performance parameters have been experimentally verified: a resolution of 20 000 lines per field, forming a square spot of 1.25×1.25 μm with an edge slope of 0.25 μm, over a field of 5×5 mm, and a spot current of 0.75 μA, which corresponds to a current density of 50 A/cm2.
Indoor GIS Solution for Space Use Assessment

Abstract As GIS and computing technologies advanced rapidly, many indoor space studies began to adopt GIS technology, data models, and analysis methods. However, even with a considerable amount of research on indoor GIS and various indoor systems developed for different applications, there has not been much attention devoted to adopting indoor GIS for the evaluation space usage. Applying indoor GIS for space usage assessment can not only provide a map-based interface for data collection, but also brings spatial analysis and reporting capabilities for this purpose. This study aims to explore best practice of using an indoor GIS platform to assess space usage and design a complete indoor GIS solution to facilitate and streamline the data collection, a management and reporting workflow. The design has a user-friendly interface for data collectors and an automated mechanism to aggregate and visualize the space usage statistics. A case study was carried out at the Purdue University Libraries to assess study space usage. The system is efficient and effective in collecting student counts and activities and generating reports to interested parties in a timely manner. The analysis results of the collected data provide insights into the user preferences in terms of space usage. This study demonstrates the advantages of applying an indoor GIS solution to evaluate space usage as well as providing a framework to design and implement such a system. The system can be easily extended and applied to other buildings for space usage assessment purposes with minimal development efforts.
Electron cyclotron heating(ECH) of tokamak plasmas.

Electron cyclotron heating (ECH) is one of the intense methods of plasma heating, and which utilizes the collisionless electron-cyclotron-resonance-interaction between the launched electromagnetic waves (called electron cyclotron waves) and electrons which are one of the constituents of the high temperature plasmas. Another constituent, namely the ions which are subject to nuclear fusion, are heated indirectly but strongly and instantly (in about 0.1 s) by the collisions with the ECH-heated electrons in the fusion plasmas. The recent progress on the development of high-power and high-frequency millimeter-wave-source enabled the ECH experiments in the middle size tokamaks such as JFT-2M (Japan), Doublet III (USA), T-10 (USSR) etc., and ECH has been demonstrated to be the sure and intense plasma heating method. The ECH attracts much attention for its remarkable capabilities; to produce plasmas (pre-ionization), to heat plasmas, to drive plasma current for the plasma confinement, and recently especially by t.
Reproducibility, Replicability, and Reliability

The terms reproducibility and replicability have been used interchangeably by some scientific communities and by media, and with the opposite meanings by others, causing much confusion. The 2019 report on “Reproducibility and Replicability in Science” issued by US National Academies of Sciences, Engineering and Medicine (NASEM) made an important contribution to delineate the two terms by equating reproducibility with computational reproducibility and replicability with scientific replicability. However, neither of them in itself can guarantee reliability. Reliability does not imply absolute truth, but it does require that our findings can be triangulated, can pass reasonable stress tests and fair-minded sensitivity tests, and they do not contradict the best available theory and scientific understanding, unless the findings are designed to challenge the existing common wisdom. The quality of data and information plays far important roles than their quantity in ensuring reliability. This talk reflects on these issues based on my statistical research on quantifying quality of big data, and as the founding Editor-in-Chief of Harvard Data Science Review (HDSR), an experience that has provided me a much broader data science perspective. Along the way, using US election prediction and COVID-19 testing as two recent examples, I will demonstrate how small our big data are when we take into account their quality.
Polymers and Plastrons in Parallel Yield Enhanced Turbulent Drag Reduction

Despite polymer additives and superhydrophobic walls being well known as stand-alone methods for frictional drag reduction in turbulent flows, the possibility of employing them simultaneously in an additive fashion has remained essentially unexplored. Through experimental friction measurements in turbulent Taylor–Couette flow, we show that the two techniques may indeed be combined favorably to generate enhanced levels of frictional drag reduction in wall-bounded turbulence. We further propose an additive expression in Prandtl–von Kármán variables that enables us to quantitatively estimate the magnitude of this cooperative drag reduction effect for small concentrations of dissolved polymer.
Improvement of the key flavour compounds of fermented garlic by fermentation process optimization

Flavour compounds in fermented garlic were identified by physicochemical analysis and gas chromatography (GC) after pre-treatment. Reducing sugars, acids, polyphenols and 5-hydroxymethyl furfural (5-HMF) were detected in fermented garlic, and 5-HMF was identified to be the key aroma compounds. To further improve the flavour quality of fermented garlic, the influence of pre-treatment method, fermentation temperature and fermentation humidity on the 5-HMF formation was studied, and then single factor tests and response surface methods were employed to optimize the fermentation process. The results showed that the best flavour was obtained when the pre-treatment was done by low temperature freezing, the fermentation temperature was 61.8°C and the humidity was 40.2%. Under the optimum condition, the content of 5-HMF reached 3.6 mg/g with a high quality score of 19. Key words: Flavour enhancement, 5-hydroxymethyl furfural (5-HMF), response surface methodology (RSM).
The synthesis and metal coordination chemistry of new 1,1′-N-substituted ferrocenediyl ligands derived from 1,1′-diaminoferrocene

A series of 1,1′-N-substituted ferrocenediyl ligands has been synthesised from 1,1′-diaminoferrocene via Schiff base condensation reactions and the coordination chemistry probed by reaction with Zr and Al reagents; an unusual dimetallic, bis-chelate Al complex has been structurally characterised.