Ride-On Cars With Different Postures and Motivation in Children With Disabilities: A Randomized Controlled Trial.

IMPORTANCE: A child's independent mobility, environments, and mastery motivation are critical factors during early development. OBJECTIVE: To examine the effectiveness of ride-on car (ROC) training with a standing (ROC-Stand) or a sitting posture (ROC-Sit) in enhancing children's mastery motivation and decreasing parenting stress levels. DESIGN: Randomized controlled trial (RCT) with a multiple pretest-posttest design. SETTING: Hospital-based environment in northern Taiwan. PARTICIPANTS: Thirty-nine children with disabilities ages 1 to 3 yr were randomly assigned to ROC-Stand (n = 16), ROC-Sit (n = 12), or conventional therapy (control; n = 11). All groups received 2-hr training sessions two times a week for 12 wk and then a 12-wk follow-up period that involved only regular therapy. MEASURES: Assessments included the Revised Dimensions of Mastery Questionnaire-Chinese version and the Parenting Stress Index. RESULTS: All groups showed significant changes in social persistence with adults, mastery pleasure, and general competence after the intervention. The two ROC training groups showed a significantly greater decrease in parenting stress than the control group. In addition, increased general competence of the ROC-Stand group also strongly correlated with decreased parent-child dysfunctional interaction. CONCLUSIONS AND RELEVANCE: This RCT verifies the effectiveness of ROC training and offers a novel approach to increase children's mastery motivation and decrease parenting stress. What This Article Adds: Providing a large amount of active, exploratory experiences with goal-directed, moderately challenging tasks and cooperation with caregivers may result in the greatest benefits to young children with motor disabilities.

Theoretical Prediction of a Giant Anisotropic Magnetoresistance in Carbon Nanoscrolls.

Snake orbits are trajectories of charge carriers curving back and forth that form at an interface where either the magnetic field direction or the charge carrier type are inverted. In ballistic samples, their presence is manifested in the appearance of magnetoconductance oscillations at small magnetic fields. Here we show that signatures of snake orbits can also be found in the opposite diffusive transport regime. We illustrate this by studying the classical magnetotransport properties of carbon tubular structures subject to relatively weak transversal magnetic fields where snake trajectories appear in close proximity to the zero radial field projections. In carbon nanoscrolls, the formation of snake orbits leads to a strongly directional dependent positive magnetoresistance with an anisotropy up to 80%.

Strongly Anisotropic Ballistic Magnetoresistance in Compact Three-Dimensional Semiconducting Nanoarchitectures.

We establish theoretically that in nonmagnetic semiconducting bilayer or multilayer thin film systems rolled up into compact quasi-one-dimensional nanoarchitectures, the ballistic magnetoresistance is very anisotropic: conductances depend strongly on the direction of an externally applied magnetic field. This phenomenon originates from the curved open geometry of rolled-up nanotubes, which leads to a tunability of the number of quasi-one-dimensional magnetic subbands crossing the Fermi energy. The experimental significance of this phenomenon is illustrated by a sizable anisotropy that scales with the inverse of the winding number, and persists up to a critical temperature that can be strongly enhanced by increasing the strength of the external magnetic field or the characteristic radius of curvature, and can reach room temperature.

Correction: Magnetoconductance modulations due to interlayer tunneling in radial superlattices.

Correction for 'Magnetoconductance modulations due to interlayer tunneling in radial superlattices' by Yu-Jie Zhong et al., Nanoscale Horiz., 2022, 7, 168-173, https://doi.org/10.1039/D1NH00449B.

Ride-on car training using sitting and standing postures for mobility and socialization in young children with motor delays: a randomized controlled trial.

PURPOSE: To examine the effects of ride-on car (ROC) training using different postures on mobility and social function in children with motor delays in comparison with conventional therapy. MATERIALS AND METHODS: Thirty-eight children (22 males, 16 females) with motor delays were recruited and randomly assigned to three groups: ROC training while sitting (ROC-Sit, n = 15; mean age, 20.25 months; standard deviation [SD], 5.29), ROC training while standing (ROC-Stand, n = 12; mean age, 24.80 months; SD, 8.42), and conventional therapy (control, n = 11; mean age: 20.25 months, SD: 5.37). All groups underwent 2-h training sessions twice weekly over a 12-week intervention phase. The Pediatric Evaluation of Disability Inventory and Goal Attainment Scaling were performed before and after the intervention and at follow-up sessions after 12 weeks. RESULTS: Mobility and goal achievement improved significantly in all groups after the intervention (p < 0.001; p < 0.0001). However, social function improved significantly only in the ROC-Stand group (p = 0.001), which had the highest number of participants showing clinically meaningful changes in mobility and social function. CONCLUSION: Increased practice and caregivers' involvement can improve children's mobility and goal achievement. Adopting a standing posture in an ROC can enhance social function.IMPLICATIONS FOR REHABILITATIONProviding active exploratory experience through ride-on cars or practicing specific skills can improve children's mobility function.Ride-on car training in a standing posture allows children to access their distal environment visually, resulting in improved social function.Setting goals with caregivers maximizes the effects of treatment on goal achievement.

Clinical effectiveness of decoction form of herbal medicine in primary care treatment of allergic rhinitis: A retrospective cohort study.

Background: The decoction form of herbal medicine (D-HM) is mainly prescribed to patients with allergic rhinitis (AR) in Korean Medicine (KM) clinics in the Republic of Korea; however, it is difficult to conduct clinical trials of D-HM due to regulatory issues. This study investigated the clinical safety and effectiveness of D-HM combination therapy for the treatment of AR by analyzing the AR outpatient data from 17 KM clinics. Methods: This retrospective cohort study included patients who visited KM clinics for AR treatment from January 1, 2021, to March 31, 2022. Cases were collated using structured case report forms and divided into the D-HM with KM usual care group (D-HM group) and the KM usual care group (UC group). Since D-HM therapy could not be randomly assigned to the study population, we used optimal propensity score (PS) matching to investigate the effectiveness and safety of D-HM combination therapy in the treatment of AR. Results: Data from 228 patients were collected. After PS matching, 144 patients were finally analyzed. The total nasal symptom score (TNSS) and mini-rhinoconjunctivitis quality of life questionnaire (mini-RQLQ) were significantly improved in the D-HM group compared with those in the UC group (TNSS: p=0.02; mini-RQLQ: p=0.04). Four patients in the D-HM group experienced minor adverse events that were mild and resolved within 15 days. Conclusions: D-HM combination therapy may be beneficial in the management of symptoms and rhinitis-associated quality of life and potentially useful in clinical practice. However, randomized placebo-controlled clinical trials are required to confirm their effectiveness. Study registration: This study has been registered at Clinical Research Information Service (KCT0007242).

Assessment of quality of life and activities of daily living among elderly patients with hypertension and impaired physical mobility in home health care by antihypertensive drugs plus acupuncture: A CONSORT-compliant, randomized controlled trial.

BACKGROUND: To evaluate the efficacy of acupuncture in improving quality of life (QOL) and activities of daily living among elderly patients with hypertension and impaired physical mobility in home health care. METHODS: Seventy participants were allocated randomly to receive either acupuncture together with antihypertensive drugs (n = 35) or antihypertensive drugs only (n = 35). Acupuncture was conducted twice a week for 12 consecutive weeks, each lasting 30 minutes. Acupuncture points San Yin Jiao, Xue Hai, Taichong, Zusanli, and Hegu acupuncture points were used bilaterally. The primary outcome was change in QOL score, evaluating by Short-Form 36 Item Health Survey (SF-36). Secondary outcomes were changes in Barthel index score and blood pressure. Besides, pain evaluation by Visual analog scale, among acupuncture and control subgroups in participants with diagnosis with disease of the musculoskeletal system and connective tissue (ICD-9: 710-739). RESULTS: Thirty-one participants in each of the acupuncture group and the control group completed the study. After 12 weeks of treatment, compared with the control group, the combination of antihypertensive treatments and acupuncture helped to improve bodily pain (P = .03), physical component summary (P = .04), mental health (P < .001), mental component summary (P = .008), Barthel index (P = .02), and systolic blood pressure (P = .01). In contrast, the control group showed no significant changes. Change in pain score revealed that there were a significant between-group differences after 6weeks (P = .01) and 12weeks of treatment (P = .001). CONCLUSION: The results of the study suggested that in home health care elderly patients with hypertension and impaired physical mobility, antihypertensive drugs combined with acupuncture therapy will be more beneficial to improve QOL, activities of daily living, and blood pressure.

Magnetoconductance modulations due to interlayer tunneling in radial superlattices.

Radial superlattices are nanostructured materials obtained by rolling up thin solid films into spiral-like tubular structures. The formation of these "high-order" superlattices from two-dimensional crystals or ultrathin films is expected to result in a transition of transport characteristics from two-dimensional to one-dimensional. Here, we show that a transport hallmark of radial superlattices is the appearance of magnetoconductance modulations in the presence of externally applied axial magnetic fields. This phenomenon critically relies on electronic interlayer tunneling processes that activate an unconventional Aharonov-Bohm-like effect. Using a combination of density functional theory calculations and low-energy continuum models, we determine the electronic states of a paradigmatic single-material radial superlattice - a two-winding carbon nanoscroll - and indeed show momentum-dependent oscillations of the magnetic states in the axial configuration, which we demonstrate to be entirely due to hopping between the two windings of the spiral-shaped scroll.

Topological Phase and Quantum Anomalous Hall Effect in Ferromagnetic Transition-Metal Dichalcogenides Monolayer 1T-VSe2.

Magnetic two-dimensional (2D) van der Waals materials have attracted tremendous attention because of their high potential in spintronics. In particular, the quantum anomalous Hall (QAH) effect in magnetic 2D layers shows a very promising prospect for hosting Majorana zero modes at the topologically protected edge states in proximity to superconductors. However, the QAH effect has not yet been experimentally realized in monolayer systems to date. In this work, we study the electronic structures and topological properties of the 2D ferromagnetic transition-metal dichalcogenides (TMD) monolayer 1T-VSe2 by first-principles calculations with the Heyd-Scuseria-Ernzerhof (HSE) functional. We find that the spin-orbit coupling (SOC) opens a continuous band gap at the magnetic Weyl-like crossing point hosting the quantum anomalous Hall effect with Chern number C=2. Moreover, we demonstrate the topologically protected edge states and intrinsic (spin) Hall conductivity in this magnetic 2D TMD system. Our results indicate that 1T-VSe2 monolayer serves as a stoichiometric quantum anomalous Hall material.

The efficacy of acupuncture for improving the side effects of COVID-19 western medicine treatments: A protocol for a systematic review and meta-analysis.

BACKGROUND: Coronavirus disease 2019 (COVID-19) is an acute respiratory infectious disease, which is pandemic, infectious, and high mortality. Many commonly discussed medications being used to treat COVID-19 are not without potentially harmful side effects such as heart, liver, kidney problems, or other clinical symptoms. Acupuncture is a nonpharmacological method. When a needle is inserted into an acupuncture point, traumatic physical stimulation occurs, and then the neuroendocrine immune regulation network is activated. This study aimed to evaluate the efficacy of acupuncture for improving the side effects of COVID-19 western medicine treatments. METHODS: From their inception to December 10, 2020, the following electronic databases will be searched to identify relevant studies: MEDLINE, PubMed, EMBASE, the Cochrane Library, Chinese National Knowledge Infrastructure (CNKI), and the Chinese Biomedical Literature Database (CBM), without any language restrictions. Randomized controlled trials and credible clinical observations without randomization include patients diagnosed with COVID-19, and receiving western medicine treatments or acupuncture, with no restrictions on disease stage, age, sex, or ethnicity. Primary outcomes would be used to evaluate the mortality rate, C-reactive protein (CRP), creatine, troponin, liver enzymes (aspartate aminotransferase and alanine aminotransferase), blood pressure, clinical symptoms (including fever, fatigue, myalgia, cough, skin rash, nausea, vomiting, and diarrhea), and serum cytokine levels. Secondary outcome would be used to evaluate the adverse events of acupuncture. Risk of bias will be assessed by 2 review authors independently according to the guidelines set out in the Cochrane Handbook for Systematic Reviews of Interventions. DISCUSSION: This is the first to evaluate the efficacy of acupuncture for improving the side effects of COVID-19 western medicine treatments. A longer follow-up should be considered in future studies. CONCLUSION: This systematic review and meta-analysis would provide evidence of acupuncture specifically focused on its effectiveness and safety for patients with COVID-19 western medications adverse effects. REGISTRATION: Registered in the PROSPERO database (CRD42020189494).

Defect-Induced Exchange Bias in a Single SrRuO3 Layer.

Exchange bias stems from the interaction between different magnetic phases, and therefore, it generally occurs in magnetic multilayers. Here, we present a large exchange bias in a single SrRuO3 layer induced by helium ion irradiation. When the fluence increases, the induced defects not only suppress the magnetization and the Curie temperature but also drive a metal-insulator transition at a low temperature. In particular, a large exchange bias field up to ∼0.36 T can be created by the irradiation. This large exchange bias is related to the coexistence of different magnetic and structural phases that are introduced by embedded defects. Our work demonstrates that spintronic properties in complex oxides can be created and enhanced by applying ion irradiation.

Engineering the interlayer exchange coupling in magnetic trilayers.

When the thickness of metal film approaches the nanoscale, itinerant carriers resonate between its boundaries and form quantum well states (QWSs), which are crucial to account for the film's electrical, transport and magnetic properties. Besides the classic origin of particle-in-a-box, the QWSs are also susceptible to the crystal structures that affect the quantum resonance. Here we investigate the QWSs and the magnetic interlayer exchange coupling (IEC) in the Fe/Ag/Fe (001) trilayer from first-principles calculations. We find that the carriers at the Brillouin-zone center (belly) and edge (neck) separately form electron- and hole-like QWSs that give rise to an oscillatory feature for the IEC as a function of the Ag-layer thickness with long and short periods. Since the QWS formation sensitively depends on boundary conditions, one can switch between these two IEC periods by changing the Fe-layer thickness. These features, which also occur in the magnetic trilayers with other noble-metal spacers, open a new degree of freedom to engineer the IEC in magnetoresistance devices.

Power-law ansatz in complex systems: Excessive loss of information.

The ubiquity of power-law relations in empirical data displays physicists' love of simple laws and uncovering common causes among seemingly unrelated phenomena. However, many reported power laws lack statistical support and mechanistic backings, not to mention discrepancies with real data are often explained away as corrections due to finite size or other variables. We propose a simple experiment and rigorous statistical procedures to look into these issues. Making use of the fact that the occurrence rate and pulse intensity of crumple sound obey a power law with an exponent that varies with material, we simulate a complex system with two driving mechanisms by crumpling two different sheets together. The probability function of the crumple sound is found to transit from two power-law terms to a bona fide power law as compaction increases. In addition to showing the vicinity of these two distributions in the phase space, this observation nicely demonstrates the effect of interactions to bring about a subtle change in macroscopic behavior and more information may be retrieved if the data are subject to sorting. Our analyses are based on the Akaike information criterion that is a direct measurement of information loss and emphasizes the need to strike a balance between model simplicity and goodness of fit. As a show of force, the Akaike information criterion also found the Gutenberg-Richter law for earthquakes and the scale-free model for a brain functional network, a two-dimensional sandpile, and solar flare intensity to suffer an excessive loss of information. They resemble more the crumpled-together ball at low compactions in that there appear to be two driving mechanisms that take turns occurring.

Cutaneous metastasis from adenoid cystic carcinoma of the parotid gland.

BACKGROUND: Cutaneous metastasis from adenoid cystic carcinoma of the salivary gland is very rare. OBJECTIVE: To present an unusual case of cutaneous metastasis from adenoid cystic carcinoma of the right parotid gland. METHODS: A 63-year-old woman with multiple subcutaneous nodules on the abdomen and a gradually enlarged mass over the right parotid area was examined. A skin biopsy was taken from one of the abdominal nodules. RESULT: Skin biopsy demonstrated the characteristic histopathologic features of metastatic adenoid cystic carcinoma. A subsequent computerized tomography of the head and neck revealed a huge soft tissue mass involving the right parotid gland. Computerized tomography of the chest revealed extensive nodular pleural thickening, and pleural biopsy also showed typical histopathologic features of metastatic adenoid cystic carcinoma. All of these results are consistent with the diagnosis of an adenoid cystic carcinoma of the right parotid gland with disseminated metastases. CONCLUSION: We report a rare case of cutaneous metastasis from adenoid cystic carcinoma of the right parotid gland. The presentation of cutaneous metastasis is often nonspecific and may mimic benign lesions. Subcutaneous nodules that are rapidly developing or eruptive, are rapidly growing and have stony hardness in nature, have pain or tenderness, and have nonhealing ulceration remind us of the possibility of cutaneous metastases. Dermatologists and dermatologic surgeons should keep the diagnosis of cutaneous metastasis in mind and always perform skin biopsy when encountering these lesions.