Miracle-dz/UniFAR-FTUs huggingface dataset:
Like me (please?): Connecting online self-presentation to pre- and early adolescents’ self-esteem

The aim of the current study was to examine the role of social media in building the self-esteem of younger adolescents. Results from a cross-sectional survey (N = 725, Mage = 11.61, SD = 1.01) provided support for a serial mediation between online self-presentation and self-esteem through both perceived online popularity and the need for popularity. Specifically, we found that self-presentation on social media was positively related to pre- and early adolescents’ self-esteem, via their perceived online popularity (e.g. receiving “likes”). However, results also revealed a relationship between online popularity and users’ need for popularity, which was in turn negatively associated with self-esteem. Findings indicate that when pre- and early adolescents engage in online self-presentation, they can generate feedback such as likes on social media. Although such positive appraisals are positively associated with their self-esteem, they also appear to provoke an increased dependence on social approval, which is paradoxically related to decreased self-esteem.
Determinants of Pharmacological Treatment Initiation and Persistence in Publicly Insured Adults With Attention-Deficit/Hyperactivity Disorder.

OBJECTIVES The objectives of this study were to describe the longitudinal trends of pharmacological treatment initiation and persistence in adult patients with attention-deficit/hyperactivity disorder (ADHD) and to explore how patients' sociodemographic and clinical characteristics affect these patterns. METHODS A retrospective cohort of 23,747 adult patients with new ADHD episodes was assembled using Medicaid extract files of 29 US states from 1999 and 2010. Sociodemographic and clinical characteristics of treatment initiators and noninitiators, and treatment persistent and nonpersistent patients were compared using multivariable logistic regression. RESULTS The overall treatment initiation and 1-year persistence rate was 22.5% and 34.2%, respectively. After adjustment, the propensity of initiating pharmacotherapy and being persistent tripled (2010 vs 2000; odds ratio, 3.25; 95% confidence interval, 2.61-4.04) and almost doubled (2009 vs 2000; odds ratio, 1.86; 95% confidence interval, 1.20-2.90) over the study period. Male, racial and ethnic minorities, and younger age groups had a decreased propensity for treatment initiation and persistence. The likelihood of initiating treatment was similar for rural and urban residents but varied among different US states. Severe mental comorbidities and, concordantly, use of antipsychotics or mood stabilizers reduced the propensity of treatment initiation but had little effect on persistence. Patients filling sustained release stimulants were most likely to be persistent. Finally, preexisting cardiovascular conditions reduced the likelihood of receiving treatment but were not associated with persistence. CONCLUSIONS The propensity to initiate and persist on pharmacological treatment in adults with ADHD has increased in the last decade but remains low. Treatment patterns were closely related to several sociodemographic and clinical determinants. Our findings provide valuable information to ensure appropriate treatment choices for these patients.
Effects of Magnet Shape on Torque Capability of Surface-Mounted Permanent Magnet Machine for Servo Applications

This paper proposes three new methods to improve torque capability for the surface-mounted permanent magnet machine in a servo system. The key to the proposed methods is to explore various magnet shape designs via sufficient attempts of harmonic combinations. Such techniques serve to avoid a significant drop in the average torque when reducing the torque ripple. The effect of analytical harmonic compensation on output torques is investigated by the finite-element method, and diverse torques are evaluated by a predefined objective function, which as an evaluation criterion of the torque performance is established. Comparisons of the proposed and the existing methods are carried out, showing the higher average torque and the lower torque ripple of the proposed method. Finally, a prototype machine designed with one of the proposed methods is fabricated and tested for validation.
Experimental Demonstration and Tolerancing of a Large-Scale Neural Network (165 000 Synapses) Using Phase-Change Memory as the Synaptic Weight Element

Using two phase-change memory devices per synapse, a three-layer perceptron network with 164 885 synapses is trained on a subset (5000 examples) of the MNIST database of handwritten digits using a backpropagation variant suitable for nonvolatile memory (NVM) + selector crossbar arrays, obtaining a training (generalization) accuracy of 82.2% (82.9%). Using a neural network simulator matched to the experimental demonstrator, extensive tolerancing is performed with respect to NVM variability, yield, and the stochasticity, linearity, and asymmetry of the NVM-conductance response. We show that a bidirectional NVM with a symmetric, linear conductance response of high dynamic range is capable of delivering the same high classification accuracies on this problem as a conventional, software-based implementation of this same network.
Production, Purification and Characterization of Uricase Produced by Pseudomonas aeruginosa

In this study, detection of uricase production from Pseudomonas aeruginosa isolates was done by applying colorimetric method, Uricase was purified from the most potent isolate by precipitation using ammonium sulphate (80% saturation) then purification was achieved using DEAE –Cellulose ion exchange and Sepharose 6B gel filtration chromatography column, 16.4% of total enzyme was recovered with specific activity 2337.5U/mg and 22.21folds of purification. Characterization of uricase involved detection of optimal conditions for uricase activity, the maximal activity was obtained at temperature 45oC,while uricase appeared to be stable at 40oC. Uricase showed optimal activity at pH 9 while pH stability was in the range of 7.5-9. Molecular weight of uricase obtained in this study determined by sodium dedosyl sulfate electrophoresis (SDS-PAGE) technique was approximately 35kDa.
EFFECT OF SILVER NANOPARTICLES, SPERMINE, SALICYLIC ACID AND ESSENTIAL OILS ON VASE LIFE OF Alstroemeria

In this study, effects of different concentrations of silver nanoparticles (NS), salicylic acid (SA), spermine (SP), dill (AN), and cumin (CM) essential oils are investigated on physiological and microbiological traits of alstroemeria (Alstroemeria hybrida) cut flowers during a preharvest and postharvest application. The study was performed as a factorial experiment based on a randomized completely design with three replications. During the experiment the vase life of cut flower was evaluated in terms of chlorophylls a, b and total, SOD, MDA, stem end bacterial colonies and bacterial identification. The results showed that using high concentrations of nanosilver (NS2) increased significantly the vase life of cut Alstroemeria in preharvest and postharvest. 11 colonies of bacteria were identified in stem end of cut alstroemeria flowers.
HVAC-Aware Occupancy Scheduling

Energy consumption in commercial and educational buildings is impacted by group activities such as meetings, workshops, classes and exams, and can be reduced by scheduling these activities to take place at times and locations that are favorable from an energy standpoint. This paper improves on the effectiveness of energy-aware room-booking and occupancy scheduling approaches, by allowing the scheduling decisions to rely on an explicit model of the building's occupancy-based HVAC control. The core component of our approach is a mixed-integer linear programming (MILP) model which optimally solves the joint occupancy scheduling and occupancy-based HVAC control problem. To scale up to realistic problem sizes, we embed this MILP model into a large neighbourhood search (LNS). We obtain substantial energy reduction in comparison with occupancy-based HVAC control using arbitrary schedules or using schedules obtained by existing heuristic energy-aware scheduling approaches.
Further Exploration of the Relationship Between Insulin Glargine and Incident Cancer

OBJECTIVE In vitro evidence suggests insulin glargine promotes tumors; observational human studies are conflicting. We aimed to expand understanding of this potential treatment risk. RESEARCH DESIGN AND METHODS This retrospective cohort study of type 2 diabetic patients >68 years old used Medicare inpatient, outpatient (2003–2008), and prescription data (2006–2008). Adjusting for patient characteristics, dose, and metformin use, Cox models yielded hazard ratios (HRs) for incident cancer (breast, prostate, pancreas, colon, any site) associated with three forms of insulin: nonglargine, glargine, or glargine plus nonglargine (combination). RESULTS Overall, 81,681 patients were followed for a mean of 23.1 months. Mean age was 77.4 years. Treatment group distribution was 20.7% glargine, 60.5% nonglargine, 18.7% combination insulin. We observed 5,466 incident cancers; crude rates did not vary by treatment group. In fully adjusted models, nonglargine use was the referent; glargine was not associated with significant increased risk of any cancer measure. In secondary analyses including only the top quartile of daily insulin dose patients, glargine was not associated with any cancer risk difference; combination insulin was associated with higher breast cancer risk (HR 1.75 [95% CI 1.10–2.78]) and lower colon cancer risk (0.33 [0.13–0.80]). In age-stratified analyses of highest-dose users, combination insulin conferred a higher risk of breast cancer in those ≤75 years old (2.87 [1.45–1.59]). CONCLUSIONS The general lack of association between glargine-only use and cancer is reassuring. Breast cancer risk associated with high-dose combination insulin in secondary analyses could result from multiple comparisons, residual confounding, or true association; further research is warranted.
Haptic Cues for Vision Impaired Art Makers: "Seeing" through Touch

For able-bodied people within the art and design discipline, access to Computer Aided Design (CAD) and visual graphic interface is a well-defined iterative process. However for non-sighted people or people with impaired vision, this is a difficult process to facilitate. Often this issue excludes and/or limits access for people with vision impairments to fully utilise CAD systems, web interface, and any other visually led interface which mainly communicates through graphical or pictorial cues and image-based metaphors. This paper presents an ongoing inclusively designed multimodal system. Whereby the use of digitally adapted haptic technology is explored via a clinically established and valid fine motor skills test: 'Wade's Nine-Hole-Peg-Test' (NHPT). Particular attention is paid to assess whether non-sighted participants can gain a level of speed and efficacy of NHPT task by using the haptic technology together with their own tacit haptic perceptions compared to a subject group of healthy sighted participants. The results indicate better performance of non-sighted participants when compared to the sighted, while also showing that implemented multimodal cues assist the performance of both participant groups based on insertion time. Given these results, future work will focus on analysing collision data from haptic insertion of the pegs in holes to compare performance based on recorded error. Additionally, these findings will be used towards providing tools for more inclusive interfaces to be used in pedagogic practices.
Failure-Envelope Approach to Modeling Shock and Vibration Survivability of Electronic and MEMS Packaging

Product level assessment of drop and shock reliability relies heavily on experimental test methods. Prediction of drop and shock survivability is largely beyond the state-of-art. However, the use of experimental approach to test out every possible design variation, and identify the one that gives the maximum design margin is often not feasible because of product development cycle time and cost constraints. Presently, one of the primary methodologies for evaluating shock and vibration survivability of electronic packaging is the JEDEC drop test method, JESD22-B111 which tests board-level reliability of packaging. However, packages in electronic products may be subjected to a wide-array of boundary conditions beyond those targeted in the test method. In this paper, a failure-envelope approach based on wavelet transforms and damage proxies has been developed to model drop and shock survivability of electronic packaging. Data on damage progression under transient-shock and vibration in both 95.5Sn4. 0Ag0.5Cu and 63Sn37Pb ball-grid arrays has been presented. Component types examined include flex-substrate and rigid substrate ball-grid arrays. Dynamic measurements like acceleration, strain and resistance are measured and analyzed using highspeed data acquisition system capable of capturing in-situ strain, continuity and acceleration data in excess of 5 million samples per second. Ultra high-speed video at 150,000 fps per second has been used to capture the deformation kinematics. The concept of relative damage index has been used to both evaluate and predict damage progression during transient shock. The failure-envelope provides a fundamental basis for development of component integration guidelines to ensure survivability in shock and vibration environments at a user-specified confidence level. The approach is scalable to application at system-level. Explicit finite-element models have been developed for prediction of shock survivability based on the failure envelope. Model predictions have been correlated with experimental data for both leaded and leadfree ball-grid arrays
Electro-thermal aspects in carbon based interconnects

In this work, we analyze self-heating in suspended single layer grahpene (SLG) by using temperature dependent flexural phonon (ZA) dominated thermal conductivity (κ) for both isotopically pure and impure cases on the basis of second order three phonon Umklapp, mass difference and edge roughness scatterings. This is followed by the extraction of temperature dependent electrical resistance (R(T )) of SLG sheet as a result of Joule-heating along the sheet when a constant current is passed through it. It is found that pure SLG sheet leads to a low rising in temperature. However, with the addition of isotopic impurities, κ falls down as a result of mass difference scattering which significantly rises the temperature along the sheet. The methodologies as presented here can be used for obtaining an accurate analysis of the temperature profile along the SLG based interconnects and hence to predict the hot-spot location within the chip.
A multi-level society comprised of one-male and multi-male core units in an African colobine (Colobus angolensis ruwenzorii)

A few mammalian species exhibit complex, nested social organizations, termed multi-level societies. Among nonhuman primates, multi-level societies have been confirmed in several African papionin and Asian colobine species. Using data on individually-recognized Rwenzori Angolan colobus at Lake Nabugabo, Uganda, we document the first multi-level society in an African colobine. The study band comprised up to 135 individuals living in 12 socially and spatially distinct core units that ranged in size from 4 to 23 individuals. These core units shared a home range, and fissioned and fused throughout the day. Using the association indices between core units, we employed hierarchical cluster analyses and permutation tests to show that some core units clustered into clans. Thus, we confirm three tiers of social organization for Rwenzori Angolan colobus: core unit, clan, and band. The social organization of this subspecies is unlike any reported previously in a nonhuman primate, with about half the core units containing a single adult male and the others containing multiple reproductive adult males. Preliminary data show males to transfer within the band and female to transfer outside of the band, which suggests that, like Hamadryas baboons, this subspecies could provide insight into the selective pressures underlying hominin social organization.
A data analysis on activist media from Rio de Janeiro favelas

We present a data-driven analyses of activist media produced by inhabitants of the favelas of Rio de Janeiro. The content was collected using their Facebook pages from 2015 to 2017 and was analyzed through computational and manual methods. The analyses reiterate and extend previous research, showing that the collectives are focused on the particular favela’s identity and the demand for rights mainly –but not only– linked to violence, police abuses and state racism. It also presents nontrivial process to look at data produced by media collectives on social networks, by analyzing their posts in an aggregated way through clustering techniques, rather than relying on a few popular posts that may or may not represent their main agenda.
The Probabilistic Method

“Shortly after the celebration of the four thousandth anniversary of the opening of space, Angary J. Gustible discovered Gustible’s planet. The discovery turned out to be a tragic mistake. Gustible’s planet was inhabited by highly intelligent life forms. They had moderate telepathic powers. They immediately mind-read Angary J. Gustible’s entire mind and life history, and embarrassed him very deeply by making up an opera concerning his recent divorce. ”
Geographies of meatification: an emerging Asian meat complex

ABSTRACT The ‘meatification’ of human diets has been subject to increasing scholarly attention in recent years, along with its many impacts. While the rapidly expanding meatification in many Asian countries has been noted, the geographies of these processes have been left largely unexplored. This paper maps the changing geographies of meat with special focus on Southeast Asia. We use Tony Weis’ concept of ‘the industrial grain-oilseed-livestock complex’ to analyse how forms of systemic meatification are taking place in Asia. We map and analyse regional trends in meat production and consumption, as well as trade patterns in meat products and dominant feed crops. We argue that the regional meat complex emerges through increasingly regional development processes and capital, as well as through new South-South connections. The geographies of meatification in Southeast Asia thus constitute an empirical manifestation of the emerging multipolarity of the global food regime.
Effect of Salicylic Acid on Growth and Physiological Status of Salt Stressed Sour Orange Seedlings (Citrus aurantium L.)

A Pot experiment was conducted to determine the effect of exogenous salicylic acid (SA) application on growth, chlorophyll content, catalase (CAT) activity, peroxidase (POX) activity, cell membrane ionic permeability (electrolyte leakage), leaf and root K+ /Na+ ratio of sour orange seedlings grown under salt stress and greenhouse conditions. Sour orange seedlings were treated with SA at two concentrations (0.15mM as a foliar spray and 0.25mM as a soil application). Two treatments in both seasons were pre-treated with 0.15mM or 0.25mM of SA for one month before application of salinity treatment (acclimation treatment). Salinity treatments were established by irrigating seedlings twice a week with saline solution contained 0, 75, and 100mM of NaCl. Salt stress negatively affected plant growth and chlorophyll content of sour orange seedlings. However, seedlings treated with SA often had greater plant length, leaf area and total dry weight as well as higher chlorophyll content under salt stress. Leaf peroxidase enzyme activity (POX) was reduced in response to salt stress while electrolyte leakage was raised. SA treatments induced increases in CAT and POX activity and decreases in electrolyte leakage compared to the control under salt stress. With respect to the nutrient content, SA treatment as a foliar spray (0.15mM) increased the leaf and root K+ /Na+ ratio as compared with control. The greatest values for most measurements were often obtained by the 0.15mM SA as a foliar spray. The treatment with SA one month before salt treatment (acclimation) did not exhibit a pronounced effect in comparison with SA without acclimation. These findings suggest that the SA treatments can ameliorate the negative effect of salinity on the growth of sour orange seedlings
Reduction of the size of L-fuzzy contexts. A tool for differential diagnoses of diseases

ABSTRACT Information extraction from an L-fuzzy context becomes a hard problem when we work with a large set of objects and/or attributes. The goal of this paper is to present two different and complementary techniques to reduce the size of the context. First, using overlap indexes, we will establish rankings among the elements of the context that will allow us to determine those that do not provide relevant information and eliminate them. Second, by means of Choquet integrals, we will aggregate some objects or attributes of the context in order to jointly use the provided information. One interesting application of the developed theory consists on helping in the differential diagnoses of diseases that share a large number of symptoms and, therefore, that are difficult of distinguish.
PREVALENCE OF HELICOBACTER PYLORI INFECTION AMONG FARMERS AND NON-FARMERS WITH DYSPEPSIA

AbstractIntroduction: Helicobacter pylori (H pylori) is a gram negative spirally shaped bacterium. It is known to be the most common cause of dyspepsia especially in developing countries as Egypt. Aim of work: To identify the prevalence of H pylori among patients with dyspepsia especially farmers and the infection risk factors. Materials and methods: This is a hospital based cross-sectional study conducted on 152 patients (78 farmers and 74 non-farmers) with dyspepsia among those admitted to Gastrointestinal (GI) Endoscopy Unit at Menoufia University hospital, Menoufia, Egypt. They were recruited to this study from 1st September 2017 to the end of May 2018. Designed questionnaire, clinical examination, esophago-gastro-duodenoscopy (EGD) and histopathological evaluation were conducted to the studied patients. Results: The overall prevalence rate of H pylori among dyspeptic patients in the current study was (73.7%) and significantly higher among low levels of education (28.6%), female gender (69.6%), farmers occupation (57.1%), low socioeconomic status (28.6%), who consume tap water for drinking (76.8%) and unwashed vegetables (73.2%). Epigastric pain was more common in patients with H pylori (P <0.001). Also, acid reflux, morning vomiting and upper abdominal distention were significantly more prevalent among Hpylori positive cases. About (82.1%) of farmers were significantly positively infected than non-farmers (64.9%). Illiterate female farmers who didn’t wash vegetables and with history of peptic ulcers were more susceptible of infection. Conclusion:Farmers occupation was at risk of H pylori infection than non-farmers. Illiteracy, bad sanitation and low hygienic standard were the risk factors of infection. Health education and environmental sanitation are recommended to lower the prevalence of H pylori especially among farmers.
Efficiency of Acalypha wilkesiana (Muell Arg.) leaf oil extract applied as a biocide against Callosobruchus maculatus (F.) (Coleoptera: Bruchidae)

The ethanolic oil extracts of Acalypha wilkesiana was assayed for its biotoxicity against the survival of Callosobruchus maculatus, immature stages, damage and seed weight-loss. The result was dosage and time of exposure dependent. The contact treatment revealed A. wilkesiana oil as an applicable biocide as it significantly (p < 0.05) affect the survival rate, suppressed oviposition and adult emergence of C. maculatus, hence reduced seed damage and weight-loss in grains below economic injury level. Contact treatment were the most toxic with LD50 values of 3.97 and 5.85 at 72 h, significantly lower (p < 0.05) than fumigant values 4.16 and 6.04, suggesting its isolation for future biocide study to establish the dose and mode of action for commercialization in crop protection.