Miracle-dz/UniFAR-FTUs huggingface dataset:
Moving from Needs Assessment to Intervention: Fathers’ Perspectives on Their Needs and Support for Talk with Teens about Sex

Talk with fathers about sex and relationships can support teens’ health, but its impact is limited as few fathers talk with their teens about sexual issues. Needs assessment and fathers’ input on intervention content and structure can guide the development of programs that support fathers’ health-promoting talk with their teen children about sex and relationships. In the present study, we explored fathers’ goals in their talk with teens about sex and relationships and barriers they perceive to these conversations, as well as what they would look for in an intervention program. Content analysis was conducted using interviews in the U.S. with 43 fathers of high school-aged teens (age 14–18). Themes explored fathers’ roles in talk with teens, key messages to teens, and approaches and barriers to conversations, in addition to attitudes toward an intervention, and feedback on intervention structure, content, and process. The findings suggest that fathers see talk with teens about sex as part of their roles, but face challenges in accomplishing this goal. Fathers’ feedback highlights their openness to an intervention and can guide the development of a peer-based and interactive program that addresses how to talk with teens about sex in addition to the content of these conversations.
Human Gait Modeling, Prediction and Classification for Level Walking Using Harmonic Models Derived from a Single Thigh-Mounted IMU

The majority of human gait modeling is based on hip, foot or thigh acceleration. The regeneration accuracy of these modeling approaches is not very high. This paper presents a harmonic approach to modeling human gait during level walking based on gyroscopic signals for a single thigh-mounted Inertial Measurement Unit (IMU) and the flexion–extension derived from a single thigh-mounted IMU. The thigh angle can be modeled with five significant harmonics, with a regeneration accuracy of over 0.999 correlation and less than 0.5° RMSE per stride cycle. Comparable regeneration accuracies can be achieved with nine significant harmonics for the gyro signal. The fundamental frequency of the harmonic model can be estimated using the stride time, with an error level of 0.0479% (±0.0029%). Six commonly observed stride patterns, and harmonic models of thigh angle and gyro signal for those stride patterns, are presented in this paper. These harmonic models can be used to predict or classify the strides of walking trials, and the results are presented herein. Harmonic models may also be used for activity recognition. It has shown that human gait in level walking can be modeled with a harmonic model of thigh angle or gyro signal, using a single thigh-mounted IMU, to higher accuracies than existing techniques.
Land Resource Depletion, Regional Disparities, and the Claim for a Renewed ‘Sustainability Thinking’ under Early Desertification Conditions

The present contribution discusses recent findings in environmental issues dealing with desertification risk and regional disparities in the Mediterranean basin. By focusing on key socioeconomic factors underlying land and soil degradation (population growth, urban sprawl, coastalization, agricultural intensification, and land abandonment), this commentary highlights the intimate linkage between socioeconomic processes, rural poverty, and territorial disparities based on complex dynamics of demographic and economic factors. The increasing complexity in the spatial distribution of land vulnerable to degradation has also been pointed out with special reference to post-war Italy, a Mediterranean country considered as particularly affected in the UNCCD Annex IV, as the results of non-linear biophysical and socioeconomic dynamics. The lack in multi-target and multi-scale policies approaching land degradation and territorial disparities together is finally discussed as an original contribution to the study of Mediterranean desertification.
Trauma-Related Distress During the COVID-19 Pandemic In 59 Countries

The COVID-19 pandemic has upended life like few other events in modern history, with differential impacts on varying population groups. This study examined trauma-related distress among 6,882 adults ages 18 to 94 years old in 59 countries during April to May 2020. More than two-thirds of participants reported clinically significant trauma-related distress. Increased distress was associated with unemployment; identifying as transgender, nonbinary, or a cisgender woman; being from a higher income country; current symptoms and positive diagnosis of COVID-19; death of a loved one; restrictive government-imposed isolation; financial difficulties; and food insecurity. Other factors associated with distress included working with potentially infected individuals, care needs at home, a difficult transition to working from home, conflict in the home, separation from loved ones, and event restrictions. Latin American and Caribbean participants reported more trauma-related distress than participants from Europe and Central Asia. Findings inform treatment efforts and highlight the need to address trauma-related distress to avoid long-term mental health consequences.
U.S. Photovoltaic Prices and Cost Breakdowns. Q1 2015 Benchmarks for Residential, Commercial, and Utility-Scale Systems

The price of photovoltaic (PV) systems in the United States (i.e., the cost to the system owner) has continued to decline across all major market sectors. This report provides a Q1 2015 update regarding the prices of residential, commercial, and utility scale PV systems, based on an objective methodology that closely approximates the book value of a PV system. Several cases are benchmarked to represent common variations in business models, labor rates, and system architecture choice. We estimate a weighted-average cash purchase price of $3.09/W for residential scale rooftop systems, $2.15/W for commercial scale rooftop systems, $1.77/W for utility scale systems with fixed mounting structures, and $1.91/W for utility scale systems using single-axis trackers. All systems are modeled assuming standard-efficiency, polycrystalline-silicon PV modules, and further assume installation within the United States.
OVERCOMING FOREIGN LANGUAGE SPEAKING ANXIETY BY USING A LANGUAGE EXCHANGE WEBSITE IN ONLINE LEARNING

The use of website in learning Foreign Language helps the students feel comfortable to speak. The objectives of the research is to investigate the Indonesian students’ self-rated degrees of their foreign language speaking anxiety (FLSA) and the effect of using language exchange website in online learning in overcoming the students’ FLSA. This study examined 100 undergraduate students of 4th and 6th semester majoring English education. Foreign Language Classroom Anxiety Scale (FLCAS) by Horwitz, Horwitz & Cope (1986) was adapted and distributed twice in the beginning of the class to find the state of speaking anxiety and in the end to see whether there is any significance effect after learning speaking by using a language exchange website. Finally, the six participants were chosen for interview. The interview was conducted to get more data about the foreign language speaking anxiety that they feel. It is found that the number of students who felt anxiety decreases after using language exchange website. Keywords: Foreign Language, Speaking Anxiety, Language Exchange Website
Post-Surface Processing and Virtual Simulation Analysis of Ball-Punch Test on CP-Ti Material

The titanium alloy is one of the prime materials for many engineering applications. It has been recommended for the components in automotive engines, power sector, biomedical industries, and more applications. It is due to the unique properties of the material with good strength and corrosion resistance. However, it is very challenging to handle Ti-based materials in manufacturing sectors without damaging the metallurgical quality. Thus, an attempt made to study the deformability of the CP-Ti material through ball–punch test to represent the stress, strain, and formability limit during mechanical loading and plastic deformation. The experiments are conducted following the ASTM E643 standards to study the material behavior. The maximum cupping reached to a height of 8.69 mm and got teared at the peak of doom. The separation has induced grain detachment due to tensile loading. The same condition is used to simulate with PAM STAMP™ software and 8.48 mm is the maximum cupping height achieved. The different is 0.21 mm. The results are interesting with similar observations and found acceptable to study the deformation.
A Comprehensive Overview of Education during Three COVID-19 Pandemic Periods: Impact on Engineering Students in Sri Lanka

The COVID-19 pandemic has impacted the education system in Sri Lanka, similar to many countries in the world. As a result, the mode of education shifted from conventional face-to-face classes to online mode. The main objective of this study is to provide a comprehensive overview of the changes to the educational system due to the COVID-19 pandemic among engineering undergraduates of Sri Lanka over three identified pandemic periods. Quantitative descriptive analysis was used together with chi-square statistics to answer the research questions using the data collected through a google survey from engineering undergraduates in Sri Lanka. According to the results, students’ attendance in online classes has improved over time compared to the initial pandemic period. Nearly 50% of students’ family income has been impacted, either stopped or reduced due to the pandemic. Most students have issues regarding computing devices, internet connectivity, and the home environment. According to the chi-square statistics results, few of these issues had a statistically significant relationship between the family income; lower the income, higher the negative impact on students. More than half of the students felt isolated when studying at home during the pandemic. Still, more than 50% of students agreed that lecturers were well prepared to guide and deliver lessons remotely. The overall recommendations of the study are implementing workshops, training on new technologies, awareness programs for educational stakeholders, providing incentives to purchase digital devices, and improving internet connectivity to improve the new standard education system of Sri Lanka.
Effect of Silicon Carbide and Tungsten Carbide on Concrete Composite

Flexural strength of concrete is an important property, especially for pavements. Concrete with higher flexural strength has fewer cracking and durability issues. Researchers use different materials, including fibers, polymers, and admixtures, to increase the flexural strength of concrete. Silicon carbide and tungsten carbide are some of the hardest materials on earth. In this research, the mechanical properties of carbide concrete composites were investigated. The silicon carbide and tungsten carbide at different percentages (1%, 2%, 3%, and 4%) by weight of cement along with hybrid silicon carbide and tungsten carbide (2% and 4%) were used to produce eleven mixes of concrete composites. The mechanical tests, including a compressive strength test and flexural strength test, along with the rapid chloride permeability test (RCPT), were conducted. It was concluded that mechanical properties were enhanced by increasing the percentages of both individual and hybrid carbides. The compressive strength was increased by 17% using 4% tungsten carbide, while flexural strength was increased by 39% at 4% tungsten carbide. The significant effect of carbides on flexural strength was also corroborated by ANOVA analysis. The improvement in flexural strength makes both carbides desirable for use in concrete pavement. Additionally, the permeability, the leading cause of durability issues, was reduced considerably by using tungsten carbide. It was concluded that both carbides provide promising results by enhancing the mechanical properties of concrete and are compatible with concrete to produce composites.
Aerodynamics, sensing and control of insect-scale flapping-wing flight

There are nearly a million known species of flying insects and 13 000 species of flying warm-blooded vertebrates, including mammals, birds and bats. While in flight, their wings not only move forward relative to the air, they also flap up and down, plunge and sweep, so that both lift and thrust can be generated and balanced, accommodate uncertain surrounding environment, with superior flight stability and dynamics with highly varied speeds and missions. As the size of a flyer is reduced, the wing-to-body mass ratio tends to decrease as well. Furthermore, these flyers use integrated system consisting of wings to generate aerodynamic forces, muscles to move the wings, and sensing and control systems to guide and manoeuvre. In this article, recent advances in insect-scale flapping-wing aerodynamics, flexible wing structures, unsteady flight environment, sensing, stability and control are reviewed with perspective offered. In particular, the special features of the low Reynolds number flyers associated with small sizes, thin and light structures, slow flight with comparable wind gust speeds, bioinspired fabrication of wing structures, neuron-based sensing and adaptive control are highlighted.
Climate variations affect the growth period of young Tectona grandis Linn F. in the Amazon

Climate change is expected to increase the occurrence of severe droughts in the tropics, and little is known about its influence on tree dynamics. Tree-ring width and remote sensing tools can help understand the impacts of climate change on tree growth. We evaluated the applicability of NDVI to obtain phenological metrics ( e.g. , start, peak, end, and length of growth season) and explored its relationship with tree-ring width of Tectona grandis (teak). The phenological metrics and tree-ring width were correlated with each other, and with both local (temperature, precipitation, solar insolation, Standardized Precipitation Evapotranspiration Index – SPEI) and large-scale (El Niño) climatic variables. The length of season and tree-ring width of teak were positively correlated with precipitation and negatively correlated with temperature in the initial months of the growth period. Tree-ring width was negatively correlated with El Niño events. Climate variables and length of season from the prior period were correlated with the tree-ring width of the current growing period. This study demonstrated that rather than directly affecting productivity, climate might also affect the length of the growing season, which would affect tree growth in the next season.
Growth and pigment production of Monascus purpureus EG and its beneficial effects

Pigments play an important role in the pharmaceutical industry as well as in the food industry. Biological synthesis of pigments has attained more revenue for easy extraction, high growth rate and high yield. The production of pigments by Monascus purpureus EG was investigated in several static batch cultures, the most suitable medium for its yellow, orange, and red extracellular pigment production was yeast glucose medium (YG), while malt extract medium (ME) had maximum production for its intracellular pigment. The effect of some physical factors on growth and pigment production was studied. Direct illumination inhibited growth and pigment production. Antimicrobial activities of pigments were observed against selected Gram-negative (G-ve) and Gram-positive (G+ve) bacteria. The antibacterial effects of red pigment on G- and G+ were highly effective compared to yellow and orange pigments. The extracted pigment was used for the reduction of the aqueous silver nitrate into silver nanoparticles (AgNPs). The biosynthesized AgNPs were structurally characterized using UV-VIS Spectra which showed absorption peaks at 437, 453 and 447 nm for pH values 3.5, 6.5 and 9.5, respectively. The optimum pH for the maximum synthesis of nanoparticles was 6.5. It showed no nitrate reductase activity, but the synthesized AgNPs exhibited strong antimicrobial activity against G+ and G- bacteria.
A Configurational Approach to Understanding the Drivers of Mobile Phone Usage in Developing Countries

While mobile technologies adoption has been largely examined by IS research, the symbolic meanings related to these technologies and the role they play in the adoption of mobile technologies in developing countries has been neglected. Thus, we examine the effects of symbolic drivers (extended self, uniqueness and status gain), experiential (flow) and functional drivers (ease of use, usefulness) on mobile technologies usage by applying the fuzzy-set configurational approach (fsQCA). Survey responses were collected from 430 inhabitants from Ghana. The results show six configurations in which different combinations of symbolic meanings with traditional adoption factors lead to mobile phone usage. These multiple configurations reveal that there is not a single optimal feature that leads to mobile phone adoption in developing countries but rather a blend of features, depending on different combinations of symbolic, experiential and functional variables.
Increasing TB/HIV Case Notification through an Active Case-Finding Approach among Rural and Mining Communities in Northwest Tanzania

While Tanzania is among the high TB burden countries to reach the WHO's End TB 2030 milestones, 41% of the people estimated to have had TB in 2020 were not diagnosed and notified. As part of the response to close the TB treatment coverage gap, SHDEPHA+ Kahama conducted a TB REACH active case-finding (ACF) intervention among rural and mining communities in Northwest Tanzania to increase TB/HIV case notification from July 2017 to June 2020. The intervention successfully linked marginalized mining communities with integrated TB/HIV screening, diagnostic, and referral services, screening 144,707 people for TB of whom 24,200 were tested for TB and 4,478 were tested for HIV, diagnosing 1,499 people with TB and 1,273 people with HIV (including at least 154 people with TB/HIV coinfection). The intervention revealed that community-based ACF can ensure high rates of linkage to care among hard-to-reach populations for TB. Providing integrated TB and HIV screening and diagnostic services during evening hours (Moonlight Events) in and around mining settlements can yield a large number of people with undiagnosed TB and HIV. For TB, this is true not only amongst miners but also FSW living in the same communities, who appear to be at similar or equally high risk of infection. Local NGOs can help to bridge the TB treatment coverage gap and to improve TB and HIV health outcomes by linking these marginalized groups with public sector services. Capturing the number of referrals arriving at CTCs is an important next step to identify how well the integrated TB/HIV outreach services operate and how they can be strengthened.
An effective numerical simulation for solving a class of Fokker–Planck equations using Laguerre wavelet method

This work presents a fast and efficient approach for solving the Fokker–Planck equation via the Laguerre wavelet collocation method. Properties of the Laguerre wavelet are presented, along with the Laguerre basis to reduce the problems into systems of either linear or nonlinear algebraic equations. This system is then solved to find the unknown coefficients. A convergent analysis for the proposed scheme is explained through theorems. Several numerical examples are presented to demonstrate the applicability and accuracy of the method to a wide variety of similar problems. The results are compared to other methods through graphs and tables.
Rider control identification in cycling taking into account steering torque feedback and sensory delays

Experiments and human rider models were used to investigate bicycle balance and steering using visuo/vestibular motion and proprioceptive feedback taking into account sensory delays. An instrumented steer-by-wire bicycle designed and built at the TU Delft bicycle laboratory was used to investigate rider responses with and with reduced steering torque feedback. Steering responses and bicycle motions were measured perturbing balance with impulsive forces at the seat post. The rider was commanded to follow a straight lane at unstable (2.6 and 3.7 ) and stable speeds (4.5 and 5.6 ). Bicycle speed was controlled with an electric drive and cruise control. Balance and steering responses could well be captured by linear impulse response functions which were consistent across participants. The impulse response functions were used to develop neuromuscular control models capturing rider–bicycle interaction. The Carvallo–Whipple bicycle model was extended with rider inertia and an additional degree of freedom for the steer-by-wire system. Rider behaviour was modelled as a balance and heading controller. This controller used visuo/vestibular motion feedback of roll angle and roll rate, heading angle and heading rate, and proprioceptive feedback of steering angle, velocity and torque. Results showed that the rider model followed the necessary stability condition of steer into the fall and was capable of stabilising the bicycle. Sensory delays had a negative effect on the model fit, which was resolved with an internal model and prediction algorithm. A model without steer angle and steer velocity feedback could not well capture the human response at the highest speeds and the absence of torque feedback had similar effects for all speeds, supporting the relevance of steer angle and torque feedback in bicycle control.
Genetic Workup for Charcot–Marie–Tooth Neuropathy: A Retrospective Single-Site Experience Covering 15 Years

Charcot–Marie–Tooth (CMT) disease is the most commonly inherited neurological disorder. This study includes patients affected by CMT during regular follow-ups at the CMT clinic in Genova, a neuromuscular university center in the northwest of Italy, with the aim of describing the genetic distribution of CMT subtypes in our cohort and reporting a peculiar phenotype. Since 2004, 585 patients (447 index cases) have been evaluated at our center, 64.9% of whom have a demyelinating neuropathy and 35.1% of whom have an axonal neuropathy. A genetic diagnosis was achieved in 66% of all patients, with the following distribution: CMT1A (48%), HNPP (14%), CMT1X (13%), CMT2A (5%), and P0-related neuropathies (7%), accounting all together for 87% of all the molecularly defined neuropathies. Interestingly, we observe a peculiar phenotype with initial exclusive lower limb involvement as well as lower limb involvement that is maintained over time, which we have defined as a “strictly length-dependent” phenotype. Most patients with this clinical presentation shared variants in either HSPB1 or MPZ genes. The identification of distinctive phenotypes such as this one may help to address genetic diagnosis. In conclusion, we describe our diagnostic experiences as a multidisciplinary outpatient clinic, combining a gene-by-gene approach or targeted gene panels based on clinical presentation.