A Mixed-Methods Approach to Investigating Family Influence on Motor Skill Development in Head Start Preschoolers.

Using an explanatory sequential mixed-methods approach, this study investigated the development of fundamental motor skills (FMS) in 219 Head Start preschoolers (age = 4.33, = 0.63; 56% girls; 53% Hispanic) and examined how family environments, including parental and sibling influences, shapes FMS.

MORC2 is a phosphorylation-dependent DNA compaction machine.

The Microrchidia (MORC) family of chromatin-remodelling ATPases is pivotal in forming higher-order chromatin structures that suppress transcription. The exact mechanisms of MORC-induced chromatin remodelling have been elusive. Here, we report an in vitro reconstitution of full-length MORC2, the most commonly mutated MORC member, linked to various cancers and neurological disorders.

Development and effects of a media-based reproductive health promotion program for male high school students at male high school: a quasi-experimental study.

Purpose: This quasi-experimental study was conducted to develop a media-based reproductive health promotion program (MRHPP) among male high school students and to evaluate its effectiveness.

Methods: The ADDIE model (analysis, design, development, implementation, and evaluation model) was used to develop the MRHPP based on Ajzen's theory of planned behavior. The research was conducted using a non-equivalent control group with a pretest-posttest design (experimental group=23; control group=22).

Aim high, hit ×10: psychological strategies driving the success of South Korean archers.

Introduction: South Korean archers have excelled in global competitions. However, limited research exists on the factors contributing to their long-term success, particularly in the context of achieving ×10 scores. This qualitative study investigated the exceptional success of South Korean archers, focusing on their achievement of ×10 scores.

Engineering of Pseudomonas putida to produce medium-chain-length polyhydroxyalkanoate from crude glycerol.

The development of biodegradable polymers is crucial for addressing environmental issues and waste management challenges, and a medium-chain-length polyhydroxyalkanoate(MCL-PHA) exhibits significant application potential in diverse industrial and environmental contexts owing to its versatility and biodegradability. Here, Pseudomonas putida was metabolically engineered to produce MCL-PHA from crude glycerol. To increase the precursor pool, we first deleted the phaC1ZC2 operon and introduced a plasmid-based overexpression of phaC2 and phaG, and the MCL-PHA content derived from glycerol increased to 18.

Body Mass Index as a Determinant of Lower Limb Function and Community Well-Being in Older Adults: Analysis of 2020 National Older Korean Survey Data.

This epidemiological research investigated the relationship between body mass index (BMI) and lower limb function and community well-being among the older population (≥65 years old) in South Korea. Using the 2020 National Survey of Older Koreans (N = 10 097; M = 73.6 ± 6.

Effect of Infection Control Simulation Based on a Negative Pressure Isolation Room Using Mixed Reality.

This study aimed to examine the effectiveness of an infection control simulation using mixed reality, comparing simulation fidelity with a high-fidelity mannequin (MN) group and problem-based learning with written cases group. This study used a three-group pretest-posttest quasi-experimental design. Two universities with similar curricula were conveniently selected, and a total of 72 nursing students were recruited.

Decadal Trends in Physical Activity Adherence Among Korean Older Adults: An Analysis of National Survey of Older Korean Data, 2011-2020.

Background/objectives: This study investigated adherence to physical activity (PA) guidelines and associated sociodemographic factors among older Koreans from 2011 to 2020.

Methods: Utilizing four public data sets from the National Survey of Older Koreans, the study included the data on 40,993 older adults 65 years and older in South Korea, collected between 2011 and 2020. Adherence to PA guidelines and sociodemographic factors were assessed through self-reported questionnaires.

The role of grit in inclusive education: a study of motivation and achievement among preservice physical education teachers.

Introduction: Grit, a combination of enduring effort and persistent interest, is key to long-term goals. The training of preservice physical education (PE) teachers is vital for child development, emphasizing the need to assess their resilience and commitment. However, research is limited regarding how grit influences motivation and achievement goals in PE.

Blockchain-Based Data Access Control and Key Agreement System in IoT Environment.

Recently, with the increasing application of the Internet of Things (IoT), various IoT environments such as smart factories, smart homes, and smart grids are being generated. In the IoT environment, a lot of data are generated in real time, and the generated IoT data can be used as source data for various services such as artificial intelligence, remote medical care, and finance, and can also be used for purposes such as electricity bill generation. Therefore, data access control is required to grant access rights to various data users in the IoT environment who need such IoT data.

Relation between Demographics and Physical Activity among Preschoolers Attending Head Start.

Limited empirical evidence is available about preschoolers' sedentary behavior (SB) and physical activity (PA) patterns in Head Start programs, we explored (a) preschoolers' SB and PA patterns (ranging from SB to light-moderate-vigorous physical activity [LMVPA]) and (b) their relationships with sociodemographic factors, weight status, and motor development. Participants included 216 preschoolers (  = 4.32 ± 0.

PUFTAP-IoT: PUF-Based Three-Factor Authentication Protocol in IoT Environment Focused on Sensing Devices.

In IoT-based environments, smart services can be provided to users under various environments, such as smart homes, smart factories, smart cities, smart transportation, and healthcare, by utilizing sensing devices. Nevertheless, a series of security problems may arise because of the nature of the wireless channel in the Wireless Sensor Network (WSN) for utilizing IoT services. Authentication and key agreements are essential elements for providing secure services in WSNs.

Dense Pixel-Level Interpretation of Dynamic Scenes With Video Panoptic Segmentation.

A holistic understanding of dynamic scenes is of fundamental importance in real-world computer vision problems such as autonomous driving, augmented reality and spatio-temporal reasoning. In this paper, we propose a new computer vision benchmark: Video Panoptic Segmentation (VPS). To study this important problem, we present two datasets, Cityscapes-VPS and VIPER together with a new evaluation metric, video panoptic quality (VPQ).

The effects of life skills of Korean college student athletes on adaptation and satisfaction in college life.

Objective: To investigate the effects of college student athletes' life skills on adaptation and life satisfaction.

Participants: 246 college student athletes ( = 20.24 ± 1.

Adolescents' Physical Activity and Depressive Symptoms: A Psychosocial Mechanism.

Guided by the Theory of Planned Behavior (TPB; Ajzen, 1991), this study aimed to test a hypothesized path model of TPB variables (i.e., attitude toward behavior, subjective norm, perceived behavioral control, and intention) with physical activity (PA) and depressive symptoms.

Experiences of hospitalization among pregnant women with preterm labor in Korea: a phenomenological study.

Purpose: The purpose of this study was to describe pregnant women's lived experiences of hospitalization due to preterm labor in Korea.

Methods: This qualitative study adopted a phenomenological approach. Individual in-depth interviews were conducted with nine participants, over the age of 20 years, who had been hospitalized for more than 1 week after being diagnosed with preterm labor.

Does Perceived Competence Mediate between Ball Skills and Children's Physical Activity and Enjoyment?

The major purpose of this study was to examine the potential mediating role of perceived motor skill competence on relationships between actual ball skills and children's physical activity (PA) and PA enjoyment. A total of 294 students ( = 10.96 ± 0.

A Secure and Lightweight Authentication Protocol for IoT-Based Smart Homes.

With the information and communication technologies (ICT) and Internet of Things (IoT) gradually advancing, smart homes have been able to provide home services to users. The user can enjoy a high level of comfort and improve his quality of life by using home services provided by smart devices. However, the smart home has security and privacy problems, since the user and smart devices communicate through an insecure channel.

Physical Fitness Promotion among Adolescents: Effects of a Jump Rope-Based Physical Activity Afterschool Program.

The major purpose of this study was to examine the effects of a jump rope-based physical activity afterschool program on middle school students' physical fitness. Sixty students ( = 13.37, = 0.

Space-Time Memory Networks for Video Object Segmentation With User Guidance.

We propose a novel and unified solution for user-guided video object segmentation tasks. In this work, we consider two scenarios of user-guided segmentation: semi-supervised and interactive segmentation. Due to the nature of the problem, available cues - video frame(s) with object masks (or scribbles) - become richer with the intermediate predictions (or additional user inputs).

Mechanism of Heat-Induced Fusion of Silver Nanowires.

Physical changes in arranged silver nanowires were monitored during progressive heating inside a transmission electron microscope. Using the in-situ experimental method, overall variation of silver nanowires and movement of the silver atoms could be assessed. The physical morphology of silver nanowires was rapidly transformed above 350 °C as they fused with each other, which led to extrusion of the silver atoms.

Design of Secure Protocol for Cloud-Assisted Electronic Health Record System Using Blockchain.

In the traditional electronic health record (EHR) management system, each medical service center manages their own health records, respectively, which are difficult to share on the different medical platforms. Recently, blockchain technology is one of the popular alternatives to enable medical service centers based on different platforms to share EHRs. However, it is hard to store whole EHR data in blockchain because of the size and the price of blockchain.

Accessing Physical Activity and Health Disparities among Underserved Hispanic Children: The Role of Actual and Perceived Motor Competence.

Promoting physical activity (PA) and eliminating health disparities among underserved minority children is a public health priority. The main purpose of this study was to examine the relationship of actual motor competence (a set of object control skills) and perceived motor competence with PA participation and health-related quality of life (HRQoL) among underserved Hispanic children who were born in the U.S.

Effects of a Need-Supportive Motor Skill Intervention on Children's Motor Skill Competence and Physical Activity.

A need-supportive environment can provide various motivational benefits to impact children's psychomotor developmental levels. However, very little is known about the effects of need-supportive motor skill intervention on children's motor skill competence and physical activity by gender. Guided by self-determination theory (SDT), this study aimed to (a) investigate the effect of a need-supportive fundamental movement skill (FMS) program on children's FMS competence and moderate-to-vigorous physical activity (MVPA), and (b) explore potential gender differences in these effects.