Miracle-dz/UniFAR-FTUs huggingface dataset:
New Sensor Based on Magnetic Fields for Monitoring the Concentration of Organic Fertilisers in Fertigation Systems

In this paper, we test three prototypes with different characteristics for controlling the quantity of organic fertiliser in the agricultural irrigation system. We use 0.4 mm of copper diameter, distributing in different layers, maintaining the relation of 40 spires for powered coil and 80 for the induced coil. Moreover, we develop sensors with 8, 4, and 2 layers of copper. The coils are powered by a sine wave of 3.3 V peak to peak, and the other part is induced. To verify the functioning of this sensor, we perform several simulations with COMSOL Multiphysics to verify the magnetic field created around the powered coil, as well as the electric field, followed by a series of tests, using six samples between the 0 g/L and 20 g/L of organic fertiliser, and measure their conductivity. First, we find the working frequency doing a sweep for each prototype and four configurations. In this case, for all samples, making a sweep between 10 kHz and 300 kHz. We obtained that in prototype 1 (P1) (coil with 8 layers) the working frequency is around 100 kHz, in P2 (coil with 4 layers) around 110 kHz, and for P3 (coil with 2 layers) around 140 kHz. Then, we calibrate the prototypes measuring the six samples at four different configurations for each sensor to evaluate the possible variances. Likewise, the measures were taken in triplicate to reduce the possible errors. The obtained results show that the maximum difference of induced voltage between the lowest and the highest concentration is for the P2/configuration 4 with 1.84 V. Likewise, we have obtained an optimum correlation of 0.997. Then, we use the other three samples to verify the optimum functioning of the obtained calibrates. Moreover, the ANOVA simple procedure is applied to the data of all prototypes, in the working frequency of each configuration, to verify the significant difference between the values. The obtained results indicate that there is a significate difference between the average of concentration (g/L) and the induced voltage, and another with a level of 5% of significance. Finally, we compare all of the tested prototypes and configurations, and have determined that prototype three with configuration 1 is the best device to be used as a fertiliser sensor in water.
The Role of Empowerment of Dumai Science Teachers Association (MGMP IPA) in improving the Professional Competency of Junior High School Science Teacher

This study aims to look at the role of empowerment Science Teachers Association (MGMP IPA) in improving the Professional competence of science teachers in the city of Dumai, Indonsia. This type of research was descriptive qualitative. The population of this study were all teachers in MGMP IPA Dumai. The research sample was 70 teachers who were members of the MGMP IPA Dumai. Data collection technique were using questionaires and test. The result showed that average professional ability of the teachers was 74 in good categories, pedagogical average was 61 in the moderate category and PCK was 56 in the moderate category. This shows that MGMP IPA Dumai has not fully played a role in increasing the professional competence of teachrers.
Optimal robust tracking by state feedback: infinite horizon

The existence and implementation of optimal robust state-feedback controllers that achieve optimal tracking over the infinite horizon is considered. The objective is to minimise over all times the deviation of a nonlinear system from a specified target state. It is shown that optimal robust state-feedback controllers that achieve this objective exist for a broad class of nonlinear input-affine systems. It is also shown that optimal performance can be approximated by state-feedback controllers that are relatively easy to design and implement.
Experimental and finite element analysis of a damaged API5L X52 pipeline with longitudinal crack repaired by adhesively bonded metallic patch

Abstract An alternative of repairment by means of Lord DC-80 adhesive and metallic patch on two API5L-X52 pipes steel with 10 mm in thickness, 122 mm outside diameter and 750 mm length, which were damaged by mechanically longitudinal crack with 5 mm depth is presented. Repaired pipes were submitted to pressure testing (0.68–9.8 MPa) and 3D-FEM was used to calculate the Von Mises stress and strain. Results indicated that measured strain was smaller than the allowed strain, then no yielding occurred. Pressure tests revealed that leakage occurred at 9.8 MPa, where seals failed but not the pipe or repaired assembly. FEM results showed that the adhesive served to join the steel patch and pipeline, which operated as a component that lead to lower stresses regarding to the internal pressure in pipeline. The Von Mises stress values increased with the increment of pressure resulting that for 9.8 MPa, the greatest stress was reached at both edges of the API-X52 piping, followed by metallic patch and finally, the adhesive with the lowest values. Cracked pipelines within the analyzed dimension sizes did not present integrity problems and it did not fail. This kind of repairment could be safely used for pipes that present external defects.
Latent Genital Tuberculosis In Male - A Possible Cause Of Reproductive Failure

Objective: Latent Genital Tuberculosis (LGTB) or tubercular infestation is prevalent in Southeast Asia and even the presence of tubercular bacilli in both male and female genital tract is becoming an important factor for reproductive failure. This study has been undertaken to explore the various undetected causes like LGTB of adverse reproductive outcome which includes infertility and recurrent pregnancy loss in both the male and female partners and the concerned route of sexual transmission of the same. Methods: 250 couples aged between 25-45 yrs old who visited Department of Reproductive Medicine at Calcutta Fertility Mission with complaints of infertility or recurrent pregnancy loss, over a period of 36 months (January 2017 to November 2019) were enrolled in this retrospective observational study and grouped into Group A, B and C. Along with the baseline tests depending on the clinical history both male and female partners were screened for LGTB by PCR test of the endometrial aspirate and semen. Sperm function tests like Vital staining, Hypo-osmotic swelling test, sperm DNA Fragmentation Index (DFI) were also performed on the semen samples. Results: 53 infertile couples (55.79%) in Group A, 23 couples (45.1%) in Group B and 64 couples (61.54%) in Group C, tested positive, when screened by PCR, for tubercular bacilli in endometrial aspirate as well as semen. Male partners who were screened to have LGTB by PCR had essentially abnormal sperm function test, especially high sperm DFI which has been analysed and found as statistically significant (p value<0.001) factor for poor reproductive outcome. Conclusion: LGTB in males has been demonstrated as an important factor associated with poor sperm function test, especially, high sperm DFI which result in serious negative consequences to natural conception. The sexual transmission of the tubercular bacilli from asymptomatic males to their female counterparts is quite evident by the clinical scenario of our patients.
The Impact of Supervisor Support on Employees’ Psychological Wellbeing: A Parallel Mediation Analysis of Work-To-Family Conflict and Job Satisfaction

This study tries to examine the influence of work-to-family conflict and job satisfaction on the relationship between supervisor support and the psychological wellbeing of 290 administrative workers at the University of Cape Coast, Ghana. The results of the parallel mediation analysis showed that supervisor support had a significant positive impact on employees’ psychological wellbeing and job satisfaction and also had a significant negative impact on employees’ work-to-family conflict. Moreover, the study found a direct positive effect of employees’ job satisfaction on their psychological wellbeing but did not find a direct negative effect of employees’ work-to-family conflict on their psychological wellbeing. In addition, job satisfaction mediated the association between supervisor support and the psychological wellbeing of employees. The study however found no evidence of the mediating influence of work-to-family conflict on the relationship between supervisor support and employees’ psychological wellbeing. Both theoretical and practical implications were further discussed.
Is climate change in the curriculum? An analysis of Australian urban planning degrees

Abstract The profession of urban planning contributes to the design and spatial arrangement of cities, and has been recognized as a key potential facilitator of action on climate change. Yet, there has been limited research to understand if, or how, urban planning students are being educated for climate change competency. This paper investigates the coverage of climate change in the curriculum of professionally accredited urban planning university degrees in Australia. Climate change coverage was assessed across three fields: (1) explicit climate change issues; (2) sustainable urban form issues (e.g. contributing to climate change by reducing greenhouse gas emissions), and (3) education for sustainability (with links to professional competencies relevant to climate change action). A content analysis was undertaken of: (1) the Planning Institute of Australia’s Policy for the Accreditation of Urban Planning Qualifications, and (2) a sample of nine accredited urban planning degrees. Limited coverage of explicit climate change issues and sustainable urban form issues was found. Coverage of education for sustainability themes (liberal education; civics; interdisciplinarity; cosmopolitanism) was stronger. Results indicate that the professional accreditation policy, and the content of urban planning degrees should be revised to include greater coverage of explicit climate change issues.
Communal Intimacy: Formalization, Egalitarianism, and Exchangeability in Collective Housing

Abstract:This article uses collective housing, a voluntary form of shared living positioned in between the conventional intimacy sphere and public life, to explore the relation between the organized and the intimate. Combining multisited observations and interviews, the study reveals collective housing to represent fairly depersonalized homes characterized by residential transition and formalization. Rather than addressing the dwellings in terms of detachment, however, the article demonstrates that they are exchange(st)able structures with existential bearing. It is through, not despite, the partially organized framework of daily chores and routines that closeness emerges. Grounded in these findings, the article calls for a reframing of intimacy outside of its traditional contexts and proposes the term “communal intimacy” to conceptualize a sociality of closeness that is bound not to exclusive dyads but to an inclusive relational infrastructure characterized by the strength of many weak ties.
The use of miR-92a inhibitor to enhance endothelial progenitor cell-mediated regeneration of injured arteries

Restenosis, a pathological condition characterised by neointima formation and lumen narrowing, can occur in some patients submitted to percutaneous coronary intervention. Reducing its incidence remains an important medical issue. Circulating endothelial precursor cells (EPCs) home to the vascular injury site and contribute to re-endothelialisation and neointima attenuation. However, the engraftment and repair capacity of EPCs from patients with cardiovascular disease are typically impaired. Priming strategies to increase EPCs’ engraftment may improve post-injury outcomes. Antiangiogenic miR-92a is upregulated in EPCs of cardiovascular patients, contributing to their reduced regenerative capacity. It was hypothesized that miR-92a antagonism in EPCs could result in a more favourable angiogenesis profile, with the rationale of developing a future functional priming strategy before cell transplantation which could lead to increased engrafting/thriving and accelerated re-endothelialisation on injured segments, hence, contributing towards post-PCI restenosis prevention. The aims of the work were: 1) to differentiate and characterise CD34+ -derived late-outgrowth EPCs from an enriched progenitor human source; 2) to characterise target gene expression and demonstrate in vitro the functional priming following the treatment of EPCs with miR-92a inhibitor and relate it to the ensueing integrin α5 subunit (ITGA5) derepression. A human EPC culture was obtained following differentiation of cord blood CD34+ cells. miR-92a inhibitor treatment using oligofectamine in CD34+ -derived late-outgrowth EPCs revealed proangiogenic,-migratory,-proliferative, and -adhesive effects in vitro, which was accompanied by the derepression of integrin α5 (ITGA5). Remarkably, siRNA ITGA5 abrogated the enhanced matrix adhesion in primed EPCs, highlighting the role of the miR-92a downstream target in EPC engraftment. Preliminary intraluminal transplantation results suggested enhanced engraftment capacity of primed EPCs in the rat carotid balloon angioplasty model.
Simulated stability of the AMOC during the Last Glacial Maximum
under realistic boundary conditions

Abstract. The response of the Atlantic Meridional Overturning Circulation (AMOC) to freshwater perturbations critically depends on its mean-state. Large swaths of icebergs melting in the North Atlantic during the last deglaciation constituted such perturbations, and thus can provide important constraints on the stability of the AMOC. Yet, the mean AMOC state during the Last Glacial Maximum (LGM), preceding the rapid disintegration of the ice-sheets during the deglaciation, as well as its response to these perturbations remain debated. Here we investigate the evolution of the AMOC responding to freshwater perturbations under improved LGM boundary conditions in the Bern3D intermediate complexity model. Particularly, we consider the effect of an open versus a closed Bering Strait. The vigorous and deep AMOC under these glacial boundary conditions, consistent with previous simulations with different models, reacts more strongly to North Atlantic freshwater forcings than under pre-industrial conditions. This increased sensitivity is mostly related to the closed Bering Strait that cuts off the freshwater escape route through the Arctic into the Pacific, thus facilitating faster accumulation of freshwater in the North Atlantic halting deep water formation. Proxy reconstructions of the LGM AMOC instead indicate a weaker and possibly shallower AMOC than today, in conflict with the particularly strong and deep circulation states coherently simulated with ocean circulation models for the LGM. Simulations with reduced North Atlantic deep water formation, as a consequence of potentially increased continental runoff from ice-sheet melt and imposed changes in the hydrological cycle, more closely resemble the overturning circulation inferred from proxies. These circulation states also show bistable behavior, where the AMOC does not recover after North Atlantic freshwater hosing. However, no AMOC states are found here that either comprise an extreme shoaling or vigorous and concurrent shallow overturning as previously proposed based on paleoceanographic data.
Does Intensive Training of Attention Influence Cognitive Fatigability in Patients With Acquired Brain Injury?

Research Objectives Impairments in attention and the speed of information processing are central to the experience of cognitive fatigue in patients with acquired brain injury (ABI). Attention may be improved through intensive training in a rehabilitation setting. The aim of the study was to investigate the feasibility of reducing cognitive fatigability (CF) using attention training and to explore the effect of two different approaches to attention training. Design Randomised controlled study in a rehabilitation setting. Participants 59 patients (age 19–59 years) with mild to moderate stroke or traumatic brain injury in the early (<4 month) phase. Interventions Patients were randomly assigned to intensive specific training with Attention Process Training (APT) or Activity-Based Attention Training (ABAT) for 3–5 days per week for a period of 5–6 weeks with a total of 20 h, in addition to traditional interdisciplinary rehabilitation. Main Outcome Measure CF was conceptualised as performance decline in terms of an increased number of incorrect responses between the first and the last quintiles of the Paced Auditory Serial Addition Test (PASAT). A negative result was defined as fatigability. The evaluator of fatigability was blinded to treatment. Results At baseline, there were no differences between the groups in age, education, reasoning, anxiety or depression. After training, a significant treatment effect was found (p = 0.020), as the APT-group, but not the ABAT-group, had improved. However, after controlling for baseline differences regarding CF on the PASAT-f, the difference was no longer significant. Conclusion The results indicate that cognitive training might be a feasible method for reducing CF through attention training and that patients with high levels of CF benefit most from attention training. The type of intervention provided, whether specific or activity-based attention training, appears to be of less importance, as there was no treatment effect after controlling for the baseline level of CF. Future studies are required to confirm the validity of the findings.
The Impact of US Monetary Policy Announcements on Equity Prices: Evidence from Borsa Istanbul

This study examines the effect of FOMC's (Federal Open Market Committee) announcements on the volatility of stock returns in the Borsa Istanbul (BIST) from January 4, 2000 to May 31, 2019. We find that FOMC's news increases the market level of volatility on announcement days but cannot find any evidence that it had a destabilizing effect on the Turkish stock market over our observation period. We also look at the effect of FOMC's news on the return volatility of the BIST100 index over different states of the stock market and find that FOMC's announcement days give a lift to conditional volatility both in bull periods and bear periods, but find no evidence of destabilizing impact. On the contrary, both positive announcement and negative announcement shocks in bull periods are found to depress volatility on consecutive days. In other words, FOMC's announcements in bull periods have a stabilizing effect on equity prices rather than a destabilizing in the BIST100 index.
Family Secrecy: Experiences of Danish German Children Born of War, 1940–2019

Families with children born to Danish mothers and German soldiers during WWII often resorted to secrecy to ward off discrimination and harm. Not knowing their origins, though, could have long-term consequences for the identity formation of these children born of war (CBOW). Based on a qualitative analysis of personal testimonies and interviews, this paper shows that the secret burdened, protected, and implicated the CBOW in the case studies in different ways at different points in their lives. This article approaches secrecy not only as a root cause of CBOW identity crisis, but also as a potential resource for resilience through memory work.
Increasing the Value of Shared Vehicles: Insights from an Implementation of User-Based Relocation in Station-Based One-Way Carsharing

New digital technologies are a driving force behind many pivotal changes in our modern world. For example, the carsharing business model has improved drastically through the adoption of technologies for online booking, instant access, vehicle monitoring, and automated billing. However, the challenge of vehicle supply and demand management hinders carsharing from reaching its full potential and mainstream application. The current norm of relocating vehicles via employees is expensive and unsustainable, counteracting the environmental benefits of carsharing. To engage this problem, a new concept called user-based relocation has emerged in recent years. For user-based relocation, customers are requested to return rented vehicles at undersupplied locations. However, research and practice lack knowledge on how to implement user-based relocation in a real-world carsharing system. This study employs an iterative research approach, including the implementation of user-based relocation in a real-world carsharing system. During the development and evaluation process, novel requirements and challenges for user-based relocation were discovered, providing valuable knowledge for its implementation and future research.
Melon growth-promoting rhizobacteria under saline stress

The aim of this study was to evaluate melon growth promotion by fluorescent rhizobacteria of Pseudomonas spp. under saline stress. Soil samples were collected in agricultural properties of Juazeiro/BA, Petrolina/PE and Curaça/BA in the Submedium Region of the São Francisco Valley to conduct sampling of bacterial isolates. The obtained isolates were analyzed regarding cultural characteristics and tolerance to salinity in the following NaCl concentrations: 0; 250, 500, 750, 1000, 1250 and 1500 mM. Among the isolated bacteria, 20 were identified and used to evaluate growth promotion on melons in a protected environment. This experiment was conducted in a completely randomized 21 x 4 factorial design, with 20 bacterial isolates, one control without inoculation and four salinity levels (0.2, 2.0, 4.0 and 6.0 dS m-1), and it was replicated seven times. A total of 147 bacterial isolates were obtained from soil samples with electric conductivity ranging from 0.8 to 60.4 dS m-1. Cell growth was inhibited starting at 750 mM of “in vitro” saline concentration, with tolerance observed up to 1500 mM. Pseudomonas spp. isolates were capable of promoting melon growth under non-saline conditions and of mitigating the harmful effects of excessive concentrations of soluble salts in the growth substrate.