Locally Enhanced Flow and Electric Fields Through a Tip Effect for Efficient Flow‑Electrode Capacitive Deionization

Low-electrode capacitive deionization(FCDI)is an emerging desalination technology with great potential for removal and/or recycling ions from a range of waters.However,it still suffers from inefficient charge transfer and ion transport kinetics due to weak turbulence and low electric intensity in flow electrodes,both restricted by the current collectors.Herein,a new tip-array current collector(designated as T-CC)was developed to replace the conventional planar current collectors,which intensifies both the charge transfer and ion transport significantly.The effects of tip arrays on flow and electric fields were studied by both computational simulations and electrochemical impedance spectroscopy,which revealed the reduction of ion transport barrier,charge transport barrier and internal resistance.With the voltage increased from 1.0 to 1.5 and 2.0 V,the T-CC-based FCDI system(T-FCDI)exhibited average salt removal rates(ASRR)of 0.18,0.50,and 0.89μmol cm^(-2) min^(-1),respectively,which are 1.82,2.65,and 2.48 folds higher than that of the conventional serpentine current collectors,and 1.48,1.67,and 1.49 folds higher than that of the planar current collectors.Meanwhile,with the solid content in flow electrodes increased from 1 to 5 wt%,the ASRR for T-FCDI increased from 0.29 to 0.50μmol cm^(-2) min^(-1),which are 1.70 and 1.67 folds higher than that of the planar current collectors.Additionally,a salt removal efficiency of 99.89%was achieved with T-FCDI and the charge efficiency remained above 95%after 24 h of operation,thus showing its superior long-term stability.

Late effects of the treatment of childhood cancer

Excellent progress has been made in the last few decades in the cure rates of pediatric malignancies,with more than 80%of children with cancer who have access to contemporary treatment being cured.However,the therapies responsible for this survival can also produce adverse physical and psychological long-term outcomes,referred to as late effects,which appear months to years after the completion of cancer treatment.Research has shown that 60%to 90%of childhood cancer survivors(CCSs)develop one or more chronic health conditions,and 20%to 80%of survivors experience severe or life-threatening complications during adulthood.Therefore,understanding the late side effects of such treatments is important to improve the health and quality of life of the growing population of CCSs.

Microstructural evolution during the progressive transformation-induced plasticity effect in a Fe-0.1C-5Mnmedium manganese steel

The microstructural evolution of a cold-rolled and intercritical annealed medium-Mn steel(Fe-0.10C-5Mn)was investigated during uniaxial tensile testing.In-situ observations under scanning electron microscopy,transmission electron microscopy,and X-ray diffraction analysis were conducted to characterize the progressive transformation-induced plasticity process and associated fracture initiation mechanisms.These findings were discussed with the local strain measurements via digital image correlation.The results indicated that Lüders band formation in the steel was limited to 1.5%strain,which was mainly due to the early-stage martensitic phase transformation of a very small amount of the less stable large-sized retained austenite(RA),which led to localized stress concentrations and strain hardening and further retardation of yielding.The small-sized RA exhibited high stability and progressively transformed into martensite and contributed to a stably extended Portevin-Le Chatelier effect.The volume fraction of RA gradually decreased from 26.8%to 8.2%prior to fracture.In the late deformation stage,fracture initiation primarily occurred at the austenite/martensite and ferrite/martensite interfaces and the ferrite phase.

Wafer‑Scale Vertical 1D GaN Nanorods/2D MoS_(2)/PEDOT:PSS for Piezophototronic Effect‑Enhanced Self‑Powered Flexible Photodetectors

van der Waals(vdW)heterostructures constructed by lowdimensional(0D,1D,and 2D)materials are emerging as one of the most appealing systems in next-generation flexible photodetection.Currently,hand-stacked vdW-type photodetectors are not compatible with large-areaarray fabrication and show unimpressive performance in self-powered mode.Herein,vertical 1D GaN nanorods arrays(NRAs)/2D MoS_(2)/PEDOT:PSS in wafer scale have been proposed for self-powered flexible photodetectors arrays firstly.The as-integrated device without external bias under weak UV illumination exhibits a competitive responsivity of 1.47 A W^(−1)and a high detectivity of 1.2×10^(11)Jones,as well as a fast response speed of 54/71μs,thanks to the strong light absorption of GaN NRAs and the efficient photogenerated carrier separation in type-II heterojunction.Notably,the strain-tunable photodetection performances of device have been demonstrated.Impressively,the device at−0.78%strain and zero bias reveals a significantly enhanced photoresponse with a responsivity of 2.47 A W^(−1),a detectivity of 2.6×10^(11)Jones,and response times of 40/45μs,which are superior to the state-of-the-art self-powered flexible photodetectors.This work presents a valuable avenue to prepare tunable vdWs heterostructures for self-powered flexible photodetection,which performs well in flexible sensors.

Novel Methodologies for Preventing Crack Propagation in Steel Gas Pipelines Considering the Temperature Effect

Using the software ANSYS-19.2/Explicit Dynamics,this study performedfinite-element modeling of the large-diameter steel pipeline cross-section for the Beineu-Bozoy-Shymkent gas pipeline with a non-through straight crack,strengthened by steel wire wrapping.The effects of the thread tensile force of the steel winding in the form of single rings at the crack edges and the wires with different winding diameters and pitches were also studied.The results showed that the strengthening was preferably executed at a minimum value of the thread tensile force,which was 6.4%more effective than that at its maximum value.The analysis of the influence of the winding dia-meters showed that the equivalent stresses increased by 32%from the beginning of the crack growth until the wire broke.The increment in winding diameter decelerated the disclosure of the edge crack and reduced its length by 8.2%.The analysis of the influence of the winding pitch showed that decreasing the distance between the winding turns also led to a 33.6%reduction in the length of the straight crack and a 7.9%reduction in the maximum stres-ses on the strengthened pipeline cross-section.The analysis of the temperature effect on the pipeline material,within a range from-40℃ to+50℃,resulted in a crack length change of up to 5.8%.As the temperature dropped,the crack length decreased.Within such a temperature range,the maximum stresses were observed along the cen-tral area of the crack,which were equal to 413 MPa at+50℃ and 440 MPa at-40℃.The results also showed that the presence of the steel winding in the pipeline significantly reduced the length of crack propagation up to 8.4 times,depending on the temperature effect and design parameters of prestressing.This work integrated the existing methods for crack localization along steel gas pipelines.

Relationship between parenting stress and behavioral and emotional problems in preschool children: A mediation effect analysis

BACKGROUND Emotional reactions,such as anxiety,irritability,and aggressive behavior,have attracted clinical attention as behavioral and emotional problems in preschool-age children.AIM To investigate the current status of family rearing,parental stress,and behavioral and emotional problems of preschool children and to analyze the mediating effect of the current status of family rearing on parental stress and behavioral/emo-tional problems.METHODS We use convenience sampling to select 258 preschool children in the physical examination center of our hospital from October 2021 to September 2023.The children and their parents were evaluated using a questionnaire survey.Pearson's correlation was used to analyze the correlation between child behavioral and emotional problems and parental stress and family rearing,and the structural equation model was constructed to test the mediating effect.RESULTS The score for behavioral/emotional problems of 258 preschool children was(27.54±3.63),the score for parental stress was(87.64±11.34),and the score for parental family rearing was(31.54±5.24).There was a positive correlation between the behavioral and emotional problems of the children and the“hostile/mandatory”parenting style;meanwhile,showed a negative correlation with the“support/participation”parenting style(all P<0.05).The intermediary effect value between the family upbringing of parents in parental stress and children's behavior problems was 29.89%.CONCLUSION Parental family upbringing has a mediating effect between parental stress and behavioral and emotional problems of children.Despite paying attention to the behavioral and emotional problems of preschool-age children,clinical medical staff should provide correct and reasonable parenting advice to their parents to promote the mental health of preschool-age children.

Variations in quantifying patient reported outcome measures to estimate treatment effect

In the practice of healthcare,patient-reported outcomes(PROs)and PRO measures(PROMs)are used as an attempt to observe the changes in complex clinical situations.They guide us in making decisions based on the evidence regarding patient care by recording the change in outcomes for a particular treatment to a given condition and finally to understand whether a patient will benefit from a particular treatment and to quantify the treatment effect.For any PROM to be usable in health care,we need it to be reliable,encapsulating the points of interest with the potential to detect any real change.Using structured outcome measures routinely in clinical practice helps the physician to understand the functional limitation of a patient that would otherwise not be clear in an office interview,and this allows the physician and patient to have a meaningful conver-sation as well as a customized plan for each patient.Having mentioned the rationale and the benefits of PROMs,understanding the quantification process is crucial before embarking on management decisions.A better interpretation of change needs to identify the treatment effect based on clinical relevance for a given condition.There are a multiple set of measurement indices to serve this effect and most of them are used interchangeably without clear demarcation on their differences.This article details the various quantification metrics used to evaluate the treatment effect using PROMs,their limitations and the scope of usage and implementation in clinical practice.

Perceptual learning for treating amblyopia in children based on activation of visual signal pathway Relationship of curative effects and time

BACKGROUND： Conventional methods （such as occlusion therapy, fine manipulation, complementary, and alternative medicine） take effects slowly, are time and labor consuming, and have uncertain curative effects in the treatment of amblyopia. Perceptual learning, a new method for treating amblyopia, improves the ability to process signals from the cerebral optic nerve system by specific visual stimulation and visual learning, as well as activation of the visual signal pathway utilizing brain nervous system plasticity. OBJECTIVE： This study investigated and evaluated the curative effects of perceptual learning, which can directionally increase brain plasticity, on the treatment of amblyopia in children. The relationship between curative effect and time was also analyzed. DESIGN： A self-control experiment. SETTING： Visual Science and Optometry Center, People＇s Hospital of Guangxi Zhuang Autonomous Region. PARTICIPANTS： A total of 125 amblyopic children （250 amblyopic eyes）, 73 males, 52 females, averaging （6±2） years of age, received treatment at the Visual Science and Optometry Center, People＇s Hospital of Guangxi Zhuang Autonomous Region between September 2006 and February 2007 and were recruited for this study. All children presented with no structural disease of the eyeballs. Written informed consent for therapeutic regiments was obtained from each child＇s parent. The protocol received approval from the Hospital＇s Ethics Committee. METHODS： Visual function was tested with a perceptual learning system （Research Center for Human Health and Development of Sun Yat-sen University, National Engineering Technique Research Center for Medical Care Implement） for visual noise, position noise, contour discrimination, contrast sensitivity, grating stereogram, and random-dot fusion. These tests helped to evaluate the efficiency of visual information processing of these children, and to determine the degree of defects of the optic nerve cells and the connections of visual cortical neurons. According to results of visual function tests, individualized treatment was adopted for each amblyopia patient using perceptual learning system. One course of treatment lasted one month, and treatment was performed twice every day with two training procedures （each training procedure lasted for ten minutes）. There was a ten-minute time interval between the two training procedures. The training treatment was performed in a quiet and dark environment. Visual acuity and recovery of visual function were tested every month. Original training procedure was continued or adjusted according to the results of visual function. MAIN OUTCOME MEASURES： Visual function change; relationship of curative effects and curative time. RESULTS： A total of 125 amblyopia children were included in the final analysis. The total efficiency of perceptual learning for treating amblyopia in children was 75.2%. Visual acuity began to greatly increase 3 months after treatment （P 〈 0.05）. Visual acuity was best corrected from 0.60 ± 0.23 before treatment to 0.86 ± 0.26 after treatment （P 〈 0.05）. The mean time to reach improved levels with curative effects was （2.82 ± 1.30） months, and to reach a basically cured level was （2.87 ±1.40） months. Percentage of improved visual acuity was the highest [98% （39/40）] in children that received 3 months of treatment and the lowest [55% （31/56）] in children that received 1 month of treatment （P 〈 0.05）. The percentage of basically cured levels with curative effects increased with length of learning time and was the greatest in children that received 4 months of treatment [67% （31/46）, P 〈 0.05]. CONCLUSION： Perceptual learning rapidly and remarkably improves visual function of amblyopia children; however, the curative effects are first apparent two and three months after intervention.

OBSERVATION ON THE CURATIVE EFFECT OF ACUPUNCTURE ON TYPE I ALLERGIC DISEASES

In a comparative study on treatment of type Ⅰ allergic diseases,acupuncture and desensitizationtherapies were performed in 143 cases.The results showed that acupuncture therapy had an ex-tensive and remarkable action against type Ⅰ allergic reaction.The curative effect was higher inthe acupuncture group than in the desensitization group in allergic asthma,allergic rhinitis andchronic urticaria.

OBSERVATION ON CURATIVE EFFECTS OF BEATING-ACUPUNCTURE ON 100 CASES OF CERVICAL SPONDYLOPATHY

Beating-acupuncture therapy is developed by Li Xutang, Director of the Section of TCM in the Jingdezhen Municipal First Hospital. Amng the 100 cases in the beating-acupuncture group, 85 cases were cured and 11 cases improved, the cure rate was 85 %; Of the 50 cases in the filiform needle acupuncture group, 25 cases were cured and 23 improved, the cure rate was 50 %. There was a statis-tically significant difference(P<0.01 ) between the two grdrips. It is indicated that the curative effect of beating-acupuncture on cervical spondylopathy is obviously superior to that of fili form-needle acupuncture, which provides a new therapy without traumatic pain for clinical treatment of cervical spondylopathy,

THE RELATIONSHIP BETWEEN THE CONCENTRATION OF METHIMAZOLE IN PLASMA AND INTRATHYROID AND ITS CURATIVE EFFECT

In order to investigate the relationship between concentration of methimazole(MMTand clinical curative efficacy,the concentration of MMI in Plasma and thyroid tissue was measuredin 26 patients with Graves' disease by HPLC,meanwhile their T-lymphocyte subsets,thyroid autoimmune antibodies and serum immunoglobulin were also measured.The results showed: ① The plasmaand intrathyroid concentrations of MMI of recovery group were much higher than those of unrecovery group(P<0.001).② The hardness of thyroid had a significant effect on the concentration ofMMI in thyroid.③Plasma concentration of MMI in the patients with no or 1￣2-degree enlargement of thyroid was much higher than that in the patients with 3-degree enlargement of thyroid(P<0.001). In addition, the plasma concentration of MMI in the subjects with soft thyroid was mudhigher than that in those with hard thyroid(P<0.001).Our study demonstrated that MMI playeda role in the immune supression of thyroid autoimmune antibodies and the immune regulation of Tand B-lymphocytes.Effective MMI concentration in the plasma and intrathyroid is the key of thesuccessful clinical treatment and correlates with the size and hardness of thyroid.

Observation of Curative Effect of Massage and Acupoint Block on 250 Patients with Scapulohumeral periarthritis

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100 Cases of Obstinate Insominia of Curative Effect by Acupuncture Da Ling Point

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Analysis of the Curative Effect of Cold-Dampness Epidemic Prescription(寒湿疫方)on the Main Symptoms of Quarantined People in Community

Objective:To evaluate the curative effect of"Cold-Dampness Epidemic Prescription(寒湿疫方)"on the main symptoms of quarantined people in community based on real-world research data,and to provide scientific basis for Chinese medicine to fight Coronavirus disease 2019 under the"Wuchang Model".Methods:From February 4,2020 to March 5,2020,the data of community quarantined people who only took"Cold-Dampness Epidemic Prescription(寒湿疫方)"under the management of"Wuchang Model"were collected,and the demographic characteristics,basic diseases,distribution of sick people,treatment process,disappearance time of eight clinical symptoms,adverse reactions and clinical outcomes of patients were statistically analyzed.Results:A total of 951 quarantined people in COVID-19 community were included,including 440 males(46.27%)and 511 females(53.73%),the oldest was 89 years old,the youngest was 2 years old,and the average age was 43.34 years old;Among the quarantined population in the community,there were 141 cases diagnosed by CDC(14.83%),CDC excluded 810 cases(85.17%);106 cases of CDC were diagnosed as COVID-19,accounting for 47.96%of the self-reported cases,and 311 cases(32.70%)had previous medical history;696(73.19%)had no obvious symptoms,and 255(26.81%)developed fever,fatigue,cough,sputum,shortness of breath,loss of appetite,diarrhea and mood,of which 187(19.66%)had cough symptoms,followed by sputum coughing(14.30%)and fever(13.56%).Conclusion:"Cold-Dampness Epidemic Prescription(寒湿疫方)"is effective in treating the clinical symptoms of COVID-19 without obvious adverse reactions.

Study on inflammatory factors and curative effect of Rhizoma Imperata on community acquired pneumonia based on TLR4/NF-κB signaling pathway

Objective:To investigate the curative effect of Rhizoma Imperata in the treatment of patients with community-acquired pneumonia and its influence on inflammatory factors related to TLR4/NF-κB signaling pathway,so as to seek new drugs for the treatment of community-acquired pneumonia.Methods:120 patients with community-acquired pneumonia who were treated in Department of respiratory medicine,the First Affiliated Hospital of Hainan Medical College from November 2019 to September 2020 were collected and randomly divided into control group and experimental group,with 60 patients in each group.The control group was given cefuroxime sodium injection,and the experimental group was given cefuroxime sodium injection+Baimao root decoction.The levels of high-sensitivity C-reactive protein(CRP)and the level of serum CRP in the two groups before and after treatment were compared Objective To observe the expression of procalcitonin(PCT),IL-6,IL-8,TNF-αand TLR4/NF-κB mRNA levels,and to observe the effect of Radix Imperata Rubra on community-acquired pneumonia.Results:The fever,cough,expectoration subsided time and chest CT inflammation absorption time of the experimental group were shorter than those of the control group,the difference was statistically significant(P<0.05);the total effective rate of the experimental group(96.67%)was higher than that of the control group(85%),the difference was statistically significant(P<0.05);after treatment,the serum CRP,PCT,IL-6,IL-8,TNF-αin the two groups were lower than before,and the experimental group was significantly lower than the control group,the difference was statistically significant(P<0.05),There was statistical significance(P<0.05);after treatment,TLR4/NF-κB mRNA of the two groups were decreased,and the experimental group was significantly lower than the control group,the difference was statistically significant(P<0.05).Conclusion:In the treatment of cap,Rhizoma Imperata can reduce the levels of CRP,PCT,IL-6,IL-8 and TNF-α.The mechanism is related to inhibiting the activation of TLR4/NF-κB signaling pathway,so as to reduce the release of inflammatory factors and improve clinical symptoms.

240 nm AlGaN-based deep ultraviolet micro-LEDs:size effect versus edge effect

240 nm AlGaN-based micro-LEDs with different sizes are designed and fabricated.Then,the external quantum efficiency(EQE)and light extraction efficiency(LEE)are systematically investigated by comparing size and edge effects.Here,it is revealed that the peak optical output power increases by 81.83%with the size shrinking from 50.0 to 25.0μm.Thereinto,the LEE increases by 26.21%and the LEE enhancement mainly comes from the sidewall light extraction.Most notably,transversemagnetic(TM)mode light intensifies faster as the size shrinks due to the tilted mesa side-wall and Al reflector design.However,when it turns to 12.5μm sized micro-LEDs,the output power is lower than 25.0μm sized ones.The underlying mechanism is that even though protected by SiO2 passivation,the edge effect which leads to current leakage and Shockley-Read-Hall(SRH)recombination deteriorates rapidly with the size further shrinking.Moreover,the ratio of the p-contact area to mesa area is much lower,which deteriorates the p-type current spreading at the mesa edge.These findings show a role of thumb for the design of high efficiency micro-LEDs with wavelength below 250 nm,which will pave the way for wide applications of deep ultraviolet(DUV)micro-LEDs.

临床治疗老年骨质疏松性股骨粗隆间骨折的疗效观察Curative effect observation on treating senile osteoporotic femoral intertrochanteric fracture

目的：探讨不同方法治疗老年骨质疏松性股骨粗隆间骨折的临床疗效。方法：采用回顾性方法分析，选取我院自2009年3月~2012年3月3年以来收治的92例老年骨质疏松性股骨粗隆间骨折患者的临床资料。随机将其分为两组，各46例，应用股骨近端防旋髓内钉固定治疗为PENA组，采用动力髋螺钉固定治疗为DHS组，两组患者均给予中医药辨证治疗。比较两组患者的手术时间、术中出血量、骨折愈合时间以及术后并发症。结果：两组患者在术中以及术后情况比较，PENA组患者术中以及术后情况均优于DHS组，手术时间、术中出血量、术中以及术后并发症、骨折愈合时间以及髋关节功能评分上均有明显的差异，具有差异统计学意义（P〈0．05）。结论：股骨近端防旋髓内钉对老年骨质疏松性股骨粗隆间骨折患者有显著的疗效，同时操作方法比较简单，创伤小，固定牢固以及并发症少，并且结合中医药辨证治疗，有利于骨折的稳定以及早期进行功能锻炼，值得临床推广。

OBSERVATION OF CURATIVE EFFECT OF ACUPUNCTURE THERAPY PLUS SCALP ACUPUNCTURE FOR RESTORING CONSCIOUSNESS AND INDUCING RESUSCITATION IN 80 CASES OF ACUTE APOPLEXY

During our 4-year work in The Republic of Yemen, the authors used acupuncture therapy to restore consciousness and induce resuscitation plus scalp acupuncture in 80 cases of acute apoplexy, with 63 cases cured, accounting for 78.75%. This therapy is obviously superior to the traditional principle of point selection in acupuncture used in 25 cases as to curative effect, treatment course and other aspects. There is an obvious statistical difference (P【 0.005).