Miracle-dz/UniFAR-FTUs huggingface dataset:
High‐gain stabilization for an axially moving beam under boundary feedback control

This paper establishes the global existence and high‐gain stabilization of a nonlinear axially moving beam with control input at the free boundary. A high‐gain controller based on the transverse velocity feedbacks of the moving beam at the free end is designed. The existence and uniqueness of the solution depending on the initial values continuously for the resulting closed‐loop system are established by invoking the Faedo–Galerkin approximation approach. Then constructing a novel energy‐like function, the explicit exponential decay rate of the closed‐loop system is obtained via a generalized Gronwall‐type integral inequality.
Pediatric Autoimmune Neuropsychiatric Disorders Associated With Group A Streptococci: Etiopathology and Diagnostic Challenges

Pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS) have attracted a lot of interest and discussion since it was originally characterized in 1998. The role of streptococcal infection in children with abrupt-onset obsessive-compulsive disorder (OCD) and new-onset tics, the natural history of this entity, and the role of symptomatic and disease-modifying therapies, such as antibiotics, immunotherapy, and psychoactive drugs, are still unresolved issues. Alternative therapies for acute-onset OCD have been developed based on this postulated pathophysiology, including antibiotics and immunomodulatory therapy. The literature on PANDAS therapy is varied but there is no clinical consensus on the treatment of choice. While there is no convincing evidence for the autoimmune rationale for PANDAS, given the increased attention to this entity and the apparent growth in usage of this diagnostic category, it is critical to address concerns about the condition's diagnosis, treatment, and pathogenesis. We conducted a multi-language literature search on Medline, Cochrane, Embase, and Google Scholar for a period spanning until October 2021. The following search strings and Medical Subject Heading (MeSH) terms were used: “PANDAS,” “Group A Streptococcus,” “OCD,” and “tics. ” We explored the literature on PANDAS in terms of its epidemiology, pathophysiology, the role of group A streptococcal infection, associated complications, and prophylactic and treatment modalities. We examined current working definitions of PANDAS, analyzed differential diagnoses, and published pieces of evidence for therapies associated with this entity, with a view to proposing a therapeutic strategy for children with acute symptoms that meet PANDAS criteria, in this review article.
Exploring University EFL Teachers’ Technological Pedagogical Content Knowledge and Teacher Efficacy in Technology-integrated Flipped Classroom

This qualitative study explored teachers’ knowledge and teacher efficacy about implementing technology-integrated flipped classroom (FC) in higher education. Using the technological pedagogical content knowledge (TPACK) framework and teacher efficacy theories, the study probed the experiences and perceptions reported by 12 university teachers of English as a foreign language. Six themes emerged from the study. Themes 1 to 3 depicted how the EFL teachers practiced the three essential teaching tasks of technology-integrated FC. By incorporating the instructional design of FC into TPACK constructs, the study developed a new FC-situated TPACK framework. Themes 4 to 6 revealed that the teachers’ sense of efficacy increased overall but fluctuate slightly. Factors improving teacher efficacy included positive changes in student performance, supportive leadership and climate, effective group work among colleagues, and open-mindedness toward technology. While factors decreasing teacher efficacy encompassed adherence to a unified teaching model imposed by the department, technology’s non-user-friendly, and impersonal characteristics. This study provides a comprehensive view of how the sampled teachers applied FC-situated TPACK. Its findings also enhance the understanding of teacher efficacy, particularly in relation to FC instruction.
Fragility and excluded minors

Let Ɲ be a set of matroids. A matroid, M, is Ɲ -fragile, if for every element e, either M\e or M/e has no minor isomorphic to a member of Ɲ . This thesis gives new results in matroid representation theory that elucidate the relationship between Ɲ -fragile matroids and excluded minors. Let ℙ be a partial field, and let Ɲ be a set of strong stabilizers for ℙ. The first main result of this thesis establishes a relationship between Ɲ -fragile matroids and excluded minors for the class of ℙ-representable matroids. We prove that if an excluded minor M for the class of ℙ-representable matroids has a pair of elements a,b such that M\a,b is 3-connected with an Ɲ -minor, then either M is close to an Ɲ -minor or M\a,b is Ɲ -fragile. The result motivates a study of the structure of ℙ-representable Ɲ -fragile matroids. The matroids U₂,₅ and U₃,₅ are strong stabilizers for the U₂ and H₅ partial fields. The second main result of this thesis is a structural characterisation of the U₂- and H₅-representable {U₂,₅,U₃,₅}-fragile matroids. We prove that these matroids can be constructed from U₂,₅ and U₃,₅ by a sequence of moves, where, up to duality, each move consists of a parallel extension followed by a delta-wye or a generalised delta-wye exchange. Finally, we obtain a bound on the size of an excluded minor M for the class of U₂- or H₅-representable matroids with the property that M has a pair of elements a,b such that M\a,b is 3-connected with a {U₂,₅,U₃,₅}-minor. Our proof uses the first and second main results of this thesis.
The Comparison of the Simulated Response to the Regional Snow Mass Anomalies over Tibet, Eastern Eur

The atmospheric response to the regional snow mass anomalies in early spring over Tibet, Eastern Europe, and Siberia is compared by general circulation model ensemble experiments. The positive snow mass anomalies over Tibet produce the largest cooling anomalies in the atmosphere from spring to early summer. Almost no significant forcing anomalies are systematically formed by the snow mass anomalies over Eastern Europe and Siberia. The model experiments show that the cooling source over Tibet works significantly to delay the seasonal transition from spring to summer in the Northern Hemisphere. It is confirmed by the simulated weak Asian monsoon; a weak lower tropospheric monsoon jet in South Asia, a weak large-scale divergence center at the upper troposphere in Southeast Asia, negative lower-layer geopotential height anomalies in the North Pacific and the North Atlantic, and the weak Walker circulation in the equatorial Pacific are simulated. The above noticeable response of the atmosphere to the snow mass anomalies over Tibet is associated with the following characteristics of Tibet as compared with Eastern Europe and Siberia; (1) The small snow melt speed over Tibet, probably due to its high elevation, maintains the early spring additional snow mass until almost the end of the climatic snow-melt season. (2) The snow albedo is effective because of large solar incidence and relatively small cloudiness over Tibet. (3) The existence of the anomalous snow cover works to cut the upward sensible heat flux rather than the evaporation over Tibet because of its dry ground condition. (4) The dry ground over Tibet makes it possible that all the anomalous snow-melt water is not drained as runoff, but a part of it is stored in the ground. (5) As pointed out by many researchers, the Tibetan Plateau plays an important role in the establishment of the Asian monsoon. The above conditions (1)-(5) for the effective snow mass anomalies are found in the model Tibet, but these conditions would be satisfied by the real regions where the snow mass anomalies affect the atmosphere efficiently. The extended atmospheric responses are found in May for the East European case and in August for the Siberian case. These are accompanied by significant ground condition anomalies in northern Eurasia. Those ground condition anomalies are not directly related to the successive ground condition anomalies followed by the anomalous snow mass melt, and seem to be created after the water and heat of the initial snow mass anomalies are supplied into the atmosphere.
Make It Easy: Lowering Transaction Costs Substantially Increases COVID-19 Vaccinations

We examine the effect of reducing individuals’ transaction costs for getting vaccinated against COVID-19 on vaccination decisions. In a field experiment, we sent mobile vaccination units (MVUs) to Swiss communities. Governments around the world use these types of mobile units to increase COVID-19 vaccination uptake. We found an increase by a factor of 3.4 (plus 9.0 percentage points) in the vaccination rate of the previously unvaccinated treatment group compared to the control group over a three-week period. The increase was present and highly statistically significant for women, men, and for all age groups. We found no evidence of cannibalization of vaccinations at other service locations. This suggests that MVUs did not just serve as a tool to reach people faster, but rather to vaccinate more people overall. Thus, the offer of mobile vaccination units is highly effective in raising vaccination rates.
RRBP1 Expression in wild and mutated p53 immunophenotype endometrioid endometrial carcinoma: Relation to ER-α and clinicopathologic factors

Background : Endometrial carcinoma (EC) is the most common gynecologic tumor in the developed world and in Egypt. Ribosome-binding protein 1 (RRBP1) is a membrane protein of rough endoplasmic reticulum essential for stabilization of endoplasmic reticulum. Overexpression of RRBP1 was detected in several malignant tumors. p53 is a tumor suppressor transcription factor encoded by TP53. The mutation of TP53 is considered the most common significant molecular alteration in half of human cancers. Aim : This study aimed to explore the immunohistochemical expression of RRBP1 in wild and mutated p53 immunophenotype endometrioid EC in relation to estrogen receptor alpha (ER-α) status and clinicopathological factors. Materials and Methods: Fifty-six endometrioid EC paraffin blocks were collected. Sections were stained with anti-RRBP1, anti-p53, and anti-ER-α antibodies. Results: RRBP1 overexpression was significantly related to high tumor grade, presence of lymphovascular invasion (LVI), advanced TNM staging, and negative ER-α. Mutated-type p53 expression was associated with high grade, LVI, advanced TNM staging, and negative ER-α. A Significant difference in p53 expression patterns was detected in relation to clinicopathological prognostic factors. Studied tumors with positive ER-α nuclear expression significantly showed wild-type p53 expression patterns more frequently compared to EEC with negative ER-α expression. Furthermore, a positive correlation was detected between RRBP1 overexpression and mutated-type p53. Conclusion : RRBP1 is considered a bad prognostic indicator in EEC and together with mutated p53 expression could be beneficial as a potential therapeutic target for EC.
Innovative Mobile Technology in Hotels and the Use of Gamification

ABSTRACT Innovations are often introduced to inspire people’s motivation and help them develop beneficial behaviour, both individually and collectively, and gamification is currently considered to be one of the most promising in that respect. Whilst technology adoption studies have explored users’ attitudes towards various technologies, scarce knowledge exists on users’ behavioural intention to try new mobile gamified applications, particularly in the context of the hospitality industry. This paper examines users’ motives for using a mobile hotel gamified application, by conducting two qualitative studies using gamers and hotel visitors as target groups. Findings reveal ten important key user motivations that fuel both utilitarian and hedonic behaviours. Conclusion highlights that these motivations are critical to consider for the effectiveness of gamification in bridging the gap and fulfilling its dual role of being both a game and a marketing/customer service tool at the same time.
Analyzing Participation in the 1994 Genocide in Rwanda

Recent studies of genocide have yielded varying estimates of the number and characteristics of people who engaged in violence. We address these disparities in estimates for one well-studied case: the 1994 genocide in Rwanda. Using novel data from Rwanda’s post-genocide gacaca courts, we provide updated estimates regarding participants. Specifically, we find that between 847,233 and 888,307 people participated in the genocide, with 181,280 to 190,113 people found guilty of only violent offenses, 618,164 to 654,152 individuals found guilty of only property crimes, and 44,042 to 47,789 individuals found guilty of both property and violent crimes. In total, we estimate that between 229,069 and 234,155 individuals were found guilty of a violent offense, including those who committed violent offenses as well as both violent and property offenses. These results align with past research, representing an important convergence of evidence regarding participation in this genocide. We also calculate specific characteristics of participants, finding that nearly 90% of all participants were men and that the median age for all participants was 34. Although most participants committed a single crime, between 215,124 and 222,522 people were found guilty of multiple crimes. Approximately 6% of people accounted for 25% of the property crimes, while 11% of people accounted for 25% of the violent crimes. These findings provide foundational information about one of the deadliest episodes of mass violence in the 20th century.
Effect of economic policy uncertainty on agricultural growth in Nigeria

This study analysed the long- and short-run effect of economic policy uncertainty on agricultural growth in Nigeria. Annual data was collected from secondary sources and analysed using the autoregressive distributed lag (ARDL) model and the associated bounds test. The highest volatility was exhibited by monetary policy uncertainty (MPU) (2.522), followed by consumer price index (CPI) (1.968). The fiscal policy uncertainty had the lowest volatility (0.179). The result of the bounds test showed that economic policy uncertainty shares a long-run relationship with agricultural growth. The effect of economic policy uncertainty on agricultural growth in the long run is negative, with the coefficient of MPU, FPU and TPU being -0.004, -0.218 and -0.507 respectively. In the short run, the effects of all the economic policy uncertainty variables on agricultural growth and welfare are negative and significant, both in contemporary (current) and in lags. A stable economic policy encourages agricultural growth.
EVALUATION OF COCHLEAR IMPLANTED CHILDREN USING THE NEWLY DEVELOPED ARABIC LOW-VERBAL SENTENCE-IN-NOISE (LV-SIN) TEST

: Background: Hearing loss during the first 3 years of life can hinder speech and language acquisition. Speech performance deteriorates rapidly with increased levels of background noise in cochlear implant users compared with normal-hearing (NH) listeners, especially when the noise is dynamic e.g., competing speaker or modulated noise. Studying CI users’ susceptibility to noise remains a major challenge for researchers and is an important step toward improving CI users’ performance in the adverse noisy conditions. Aim of the work : To evaluate speech perception in noise of a group of cochlear implanted (CI) children using different types of noise, at different signal to noise ratios (SNR) and explore the effect of age at surgery on speech understanding in noisy situations. Patient and Methods: Forty subjects divided into 2 groups were included in the present study. Group I: Ten normal hearing children (NH) with mean age of 95.5 months. Group II: Thirty CI users with mean age of 100.2 months. They were tested using the newly developed low-verbal sentences in noise test (LV-SIN) using white, multi-talker babble and story noise. Language and speech evaluation were done. Scoring was done by measuring the SNR 50 which is the level at which the child repeated 50% of the number of words per list. Results: Significant difference in LV-SIN test scores was obtained between NH children and CI users using the 3 types of noise. White noise showed the least challenging situation. Age at CI implantation was significantly correlated to the LV-SIN test scores. Conclusions: Children with CI need much higher signal to noise ratios (SNRs) than their NH peers and age at CI surgery highly affects their speech perception in noise.
On the M31 Nova Progenitor Population

We present a survey of M31 novae in quiescence. This is the first catalogue of extragalactic systems in quiescence and contains 37 spectroscopically confirmed novae from 2006 to 2013. We used Liverpool Telescope and Faulkes Telescope North images taken during outburst to identify accurate positions for each system. These positions were then transformed to archival Hubble Space Telescope (HST) images and we performed photometry on any resolvable source that was consistent with the transformed positions. As red giants in M31 will be resolvable in the HST images, we can detect systems with red giant secondaries. There are only a few confirmed examples of such systems in our Galaxy (e.g. RS Oph and T CrB). However, we find a much higher portion of the nova population in M31 may contain red giant secondaries. For some novae, coincident HST images had been taken when the nova was still fading, allowing us to produce light curves that go fainter than is possible to achieve for most extragalactic systems. Finally, we compare the M31 and Galactic quiescent nova populations.
Multiscale dynamical cross-talk in zeolite-catalyzed methanol and dimethyl ether conversions

Abstract Establishing a comprehensive understanding of the dynamical multiscale diffusion and reaction process is crucial for zeolite shape-selective catalysis and is urgently demanded in academia and industry. So far, diffusion and reaction for methanol and dimethyl ether (DME) conversions have usually been studied separately and focused on a single scale. Herein, we decipher the dynamical molecular diffusion and reaction process for methanol and DME conversions within the zeolite material evolving with time, at multiple scales, from the scale of molecules to single catalyst crystal and catalyst ensemble. Microscopic intracrystalline diffusivity is successfully decoupled from the macroscopic experiments and verified by molecular dynamics simulation. Spatiotemporal analyses of the confined carbonaceous species allow us to track the migratory reaction fronts in a single catalyst crystal and the catalyst ensemble. The constrained diffusion of DME relative to methanol alleviates the high local chemical potential of the reactant by attenuating its local enrichment, enhancing the utilization efficiency of the inner active sites of the catalyst crystal. In this context, the dynamical cross-talk behaviors of material, diffusion and reaction occurring at multiple scales is uncovered. Zeolite catalysis not only reflects the reaction characteristics of heterogeneous catalysis, but also provides enhanced, moderate or suppressed local reaction kinetics through the special catalytic micro-environment, which leads to the heterogeneity of diffusion and reaction at multiple scales, thereby realizing efficient and shape-selective catalysis.
Microtopography Matters: Belowground CH4 Cycling Regulated by Differing Microbial Processes in Peatland Hummocks and Lawns

Water table depth and vegetation are key controls of methane (CH4) emissions from peatlands. Microtopography integrates these factors into features called microforms. Microforms often differ in CH4 emissions, but microform‐dependent patterns of belowground CH4 cycling remain less clearly resolved. To investigate the impact of microtopography on belowground CH4 cycling, we characterized depth profiles of the community composition and activity of CH4‐cycling microbes using 16S rRNA amplicon sequencing, incubations, and measurements of porewater CH4 concentration and isotopic composition from hummocks and lawns at Sallie's Fen in NH, USA. Geochemical proxies of methanogenesis and methanotrophy indicated that microforms differ in dominant microbial CH4 cycling processes. Hummocks, where water table depth is lower, had higher porewater redox potential (Eh) and higher porewater δ13C‐CH4 values in the upper 30 cm than lawns, where water table depth is closer to the peat surface. Porewater δ13C‐CH4 and δD‐CH3D values were highest at the surface of hummocks where the ratio of methanotrophs to methanogens was also greatest. These results suggest that belowground CH4 cycling in hummocks is more strongly regulated by methanotrophy, while in lawns methanogenesis is more dominant. We also investigated controls of porewater CH4 chemistry. The ratio of the relative abundance of methanotrophs to methanogens was the strongest predictor of porewater CH4 concentration and δ13C‐CH4, while vegetation composition had minimal influence. As microbial community composition was strongly influenced by redox conditions but not vegetation, we conclude that water table depth is a stronger control of belowground CH4 cycling across microforms than vegetation.
Compounding effects of adult ADHD and comorbidities on intimate relationships

Although research about adult Attention Deficit Hyperactivity Disorder (adult ADHD) has become more prevalent since the condition’s recognition in the 1990s, information remains scarce about if and how its psychiatric comorbidities may compound impact on functionality in relationships. Studies abound on the independent effects on relationships of two of adult ADHD’s most common comorbidities - mood and substance use disorders. However, adults with ADHD sans comorbidities often experience interpersonal relationship difficulties due to the disorder’s signature symptoms alone - hyperactivity, impulsivity, and inattentiveness - as well as due to adult ADHD’s oft-observed dimension of emotional lability. The primary purpose of this study is to review the literature regarding the impact on intimate relationships of adult ADHD, as well as look at the potential compounding effects of comorbid mood or substance use disorder. The secondary purpose of this paper is to examine the literature on integrative therapy to treat couples wherein at least one partner struggles with adult ADHD, with or without comorbidities. Future research and practice implications are also discussed, including the hope for focus on the positive aspects of ADHD for individuals and relationships.
Psychological repercussions of COVID-19 in optometry occupation

Background: Optometry being a profession which requires a close examination of the patient, there is a very significant danger of viral transmission while using diagnostic equipment in the field. The impact on psychological health is not limited to the covid risk factors. Despite these dangers, relatively few researches have been done to truly assess how the COVID-19 second wave has affected Indian optometrists. The purpose of this study was to evaluate the COVID-19 second wave's psychological effects on Indian optometrists. Materials and Techniques in this cross-sectional study, the PHQ-9 questionnaire was used to gauge the psychological health of 203 Indian optometrists. Results: According to this study, 203 optometrists who took part in it showed signs of depression in varying degrees: 34.5 percent mild, 20.7 percent moderate, 8.4 percent moderately severe and 0.9 percent severe. Conclusions: In the conclusion, it is fairly shown that a sizable proportion of optometrists in India were mentally impacted by COVID-19 second wave.