Determining the rational layout parameters of the lateral high drainage roadway serving for two adjacent working faces

To determine the rational layout parameters of the lateral high drainage roadway(LHDR) serving for two adjacent working faces, a mechanical model of the LHDR under mining influence was established, and the overburden fissure, mining-induced stress distribution rules were analyzed. First, the development characteristics of mining-induced overburden fissure and the stress distribution law of the upper section of the working face were analyzed. Second, by analyzing the distribution law of vertical stress at different layers, the lateral distance of the LHDR was determined as 25 m. Third, by analyzing the surrounding rock deformation effect, stress distribution law, and overburden fissure distribution law of the LHDR at the heights of 20, 25, and 30 m away from the roof, the rational horizon of the LHDR was determined to be 25 m. Finally, an example of a LHDR located 25 m above the roof of the No. 2 coal seam and 25 m away from the No. 2-603 working face was presented. Results show that when the No. 2-603 coalface is being mined, the surrounding rocks lag 80 m or even further and the working face tends to be stable. The relative deformations of the roof and floor of the roadway and both of its walls were 583 and 450 mm,respectively. The reduction rate of the roadway section was 21.52%–25.32%. The section of the roadway was sufficient to extract the pressure relief gas in the overburden of the No. 2-605 working face. The average gas concentration and the pure volume at the branch pipeline were 24.8% and 22.3 m^3/min,respectively, showing that the position of high-level boreholes was reasonable.

The Application of Forward Control Nursing in Anesthesia, Recovery, and Rehabilitation of Thoracoscopic Lung Cancer Radical Surgery

Objective: To explore the clinical application effect of formulating the operating room nursing work procedure sheet for elderly lung cancer patients in thoracoscopic radical surgery. Methods: A total of 85 elderly patients with lung cancer treated in our hospital from May 2022 to May 2023 were included as the study population for this research. They were divided into a study group of 42 cases and a regular group of 43 cases. The regular group of elderly patients received routine nursing care, while the study group of elderly patients was provided with the operating room nursing care work procedure sheet. The surgical duration, intraoperative blood loss, time to mobilization, and postoperative complication rate were compared and analyzed between the two groups. Results: Compared to the regular group, the study group had significantly shorter surgical duration and time to mobilization, as well as less intraoperative blood loss (P < 0.05). The overall incidence of postoperative complications in the study group (4.76%) was significantly lower than that in the regular group (19.05%) (P Conclusion: Formulating the operating room nursing work procedure sheet for elderly lung cancer patients can effectively improve surgical efficiency, reduce the incidence of postoperative complications, and promote patient prognosis in thoracoscopic radical surgery. Therefore, this model is worth promoting and adopting in clinical practice.

Contribution of Risk Perception for the Analysis of Non-Compliance to Work Procedures

One of the problems encountered in work security is non-compliance to work procedures by operators. The consequences of such human behavior are harmful to both the operators and the organization. These consequences are the result of a situational behavior of operators. This article focuses on the perception of work situations in a sample of Algerian workers in oil companies knowing that this perception determines, in large part, the decisions taken by the operators in terms of non-compliance with work procedures.

Unusual disposition of lateral circumflex femoral artery: Anatomical description and clinical implications

The anatomical knowledge of arterial variations of lower limb is of utmost significance for the present day surgeons and interventional radiologists for minimizing complications during vascular reconstructive procedures, catheterization procedures and surgical intervention for embolism. Lateral Circumflex Femoral Artery(LCFA) isan important branch of Profunda Femoris artery and precise knowledge of its variations can be of great relevance during surgical and radiological procedures in femoral region. The present study reports a unique case of anomalous route taken by LCFA posterior to femoral nerve associated with a prominent muscular branch from Femoral artery mimicking the course of LCFA. Documentation of such variations is highly significant. It may serve as guideline for surgeons in reducing the incidence of postoperative complications where LCFA is used as a long vascular pedicle in anterolateral perforator thigh flap and in breast reconstruction after mastectomy. Ignorance of such variations can lead to fatal intraoperative haemorrhage and incapacitating sensory and motor deficit due to injury to femoral nerve branches which are closely related to these vessels.

Swinging Eyelid Procedure: An Useful Approach for Reduction of Zygomaticomalar Fracture

The swinging eyelid procedure is a versatile technique to approach orbital and periorbital surgical fields with less visible scar. Although mainly used in orbital surgeries, this procedure can also be used to expose the zygomatic arch and periorbital areas. The swinging eyelid procedure, therefore, enables appropriate reduction of zygomaticomalar fracture under direct visualization. We used this technique for a 27 years old man with a displaced zygomaticomalar fracture that pushed on the lateral rectus muscle. Good functional and cosmetic results were obtained postoperatively without ocular motility impairment.

Organizational Justice and Gender Equity:The Contingent Effect of Islamic Work Ethics

Organizations are facing challenges to cope with gender equity in the presence of a diverse workforce.The present study investigates the moderating impact of Islamic work ethics on the organizational justicegender equity relationship.Self-administered questionnaires were sent to employees working in a large private university in a State of Qatar.This study collected data from 250 employees with 66.12%response rate.The present study employed structural equation modelling to analyse data in SmartPLS 3.0 and SPSS version 24.Empirical findings revealed the significant relationship of distributive justice and interactional justice with gender equity.Procedural justice did not relate to gender equity.Furthermore,Islamic work ethics also moderated the relationship of interactional justice with gender equity.Limitations and implications have been added at the end of paper.This study is first in its nature revealing the conditional factor of Islamic work ethics on the organizational justicegender equity relationship.

Ankle Arthroscopy,Lateral Ligament Repair and Peroneal Tendon Reefing for Chronic Lateral Ankle Instability:The Triad vs Arthroscopy with Ligament Repair

Peroneal tendon and retinacular pathology contributes to chronic lateral ankle instability. The “gold standard” surgical treatment for chronic lateral ankle instability has been the Brostrom-Gould procedure with its modifications. An ankle arthroscopy is an adjuvant procedure to address any intra-articular pathology. We review our results of two study groups. The first group underwent an ankle arthroscopy and a Brostrom-Gould procedure. The second group (triad) underwent an ankle arthroscopy, the Brostrom-Gould procedure and excision of low lying peroneal muscle belly with tightening of the inferior peroneal retinaculum. The triad technique was performed on 97 patients and results compared to 71 ankle arthroscopies with the Brostrom-Gould procedure. The patients were contacted at a mean follow-up time of 30 months for postoperative ACFAS scores, VAS scores, and overall satisfaction. Patients were also asked to report incidence of ankle sprain recurrence. The average postoperative ACFAS hindfoot and ankle score was 92 for the triad group and 89 for the arthroscopic debridement and Brostrom-Gould group. The average overall satisfaction was 98% in the triad group and 91% in the scope and Brostrom group. There were 4 (4.3%) recurrences in the triad group and 12 (17.6%) in the Brostrom-Gould with scope group. Each group had a similar incidence of wound healing complications. Peroneal tendon and retinacular pathology contributes to continued ankle instability and pain. We believe that the triad procedure is superior to the Brostrom-Gould procedure.

侧颈低领切口入路在甲状腺手术中的应用

目的探讨侧颈低领切口入路在甲状腺手术中应用的可行性和优点。方法选取2021年1月至2022年1月宿州市立医院甲状腺肿瘤病人80例,依据手术治疗方式不同分为观察组与对照组,各40例。观察组行侧颈区低领切口入路甲状腺切除术,对照组行传统颈前低领切口中间入路甲状腺切除术。比较两组各临床指标、术后并发症、嗓音和美容满意度的差异。结果两组病人年龄、性别、病理类型及手术方式等一般资料对比差异无统计学意义(P>0.05)。观察组在手术时间、手术出血量、术后拔管时间及术后第3天血清钙值与对照组相比差异无统计学意义(P>0.05),观察组术后疼痛VAS评分[(3.82±0.43)分比(5.55±0.50)分]及围手术期总手术并发症的发生率(7.5%比30.0%)低于对照组,差异有统计学意义(P<0.05),观察组术后嗓音满意度及美容满意度优于对照组,差异有统计学意义(P<0.05)。结论在甲状腺手术中经侧颈低领切口入路,可以减缓术后颈前不适感,手术并发症发生率低,手术切口隐蔽,病人术后嗓音满意度及美容满意度高,可行性好,值得临床推广。

2020-2023年进口化学药品注册检验工作情况分析及思考

目的:为进一步提高进口化学药品注册检验的工作效率及工作质量提供参考。方法:对2020-2023年药品注册检验工作程序的发展变化、进口化学药品注册检验的工作概况及存在问题等多个方面进行总结分析。结果:随着注册检验工作程序的修订完善,进口化学药品注册检验申报数量呈明显上升趋势,检验技术难度也逐步增加,同时存在申报单位的资料、样品等准备不充分,信息化建设不足等问题。结论:通过总结分析,探讨进口化学药品注册检验工作面临的问题及挑战,建议加强口岸药品检验机构的能力建设及信息化建设,加强申报人员的指导培训工作等,为进一步提高进口化学药品注册检验的工作效率及工作质量提供参考。

水利工程白蚁防控技术体系构建的研究

水利工程蚁害风险不容忽视,构建白蚁防控技术体系尤为必要。通过对水利工程白蚁防控对象、防控目标、总体策略进行探讨,明确水利工程白蚁防控应建立“控、防、治、测、填”的技术体系,采取日常防控、蚁情调查、方案设计、防治实施、质效评价的工作流程,在白蚁防治用品选择、白蚁预防对象确定、保证结构安全方面加强质量管理,强化科技赋能,全面推动水利工程白蚁防控工作规范开展。

病程对水平半规管良性阵发性位置性眩晕复位后残余症状的影响

目的 探讨不同病程对水平半规管良性阵发性位置性眩晕(horizontal canal benign paroxysmal positional vertigo,HC-BPPV)患者成功复位后残余症状的影响。方法 选取2021年7月—2022年3月上海交通大学医学院附属新华医院耳鼻咽喉头颈外科收治的HC-BPPV患者49例,根据发病至复位时间分为短病程组33例和长病程组14例。所有患者均采用转椅辅助下的Barbecue或Gufoni耳石复位治疗,成功复位后7~10 d进行复诊,复位前后均采用眩晕障碍量表(dizziness handicap inventory,DHI)进行评估,比较两组复位前后DHI各维度评分及总分差异。结果 复位前后,长病程组DHI总分均高于短病程组,差异有统计学意义(P<0.05)。复位前,长病程组DHI-F评分高于短病程组,差异有统计学意义(P<0.05);复位后,长病程组DHI-F评分、DHI-P评分、DHI-E评分均高于短病程组,差异均有统计学意义(P<0.05)。复位前后,两组DHI各维度评分差值及总分差值比较,差异均无统计学意义(P>0.05)。结论HC-BPPV复位后,出现残余症状的风险与复位前病程有关,病程越长,复位后出现残余症状的风险越大,残余症状可表现在躯体功能、社会功能及心理障碍等方面。

腹腔镜下侧腹壁悬吊术及其改良术式治疗盆腔器官脱垂的研究进展

盆腔器官脱垂是好发于中老年女性的一类疾病,手术往往是消除脱垂症状的最终选择,然而该病的治疗术式目前尚未达成统一的标准,现行术式均有其明显优缺点和适用范围。近年来伴随着女性对术后美观和保留子宫的需求增加,腹腔镜下侧腹壁悬吊术作为一种在保留子宫和切除子宫术式中均有良好治疗效果的技术得到了临床医师的青睐,其学习曲线短、风险小、出血少且并发症发生率低,该术式及其改良术式在治疗前、中腔室脱垂中展现出的高治愈率,体现了该术式的普适性和实用性,有望成为腹腔镜下骶骨固定术的替代术式。而在不同类型的网片材料中,聚丙烯合成网片展现出了更低的并发症发生率,是腹腔镜手术首选的网片修补材料。

内蒙古地区传统毡靴工艺的田野调查报告

传统毡靴是草原民族冬季御寒的典型用品,在内蒙古地区有着悠久的使用历史。本文将锡林郭勒盟阿巴嘎旗吕树花毡靴作坊作为田野调查对象,跟踪现场制作过程,以文字、图片的方式详细记录传统毡靴的场地、材料、工具、工艺等生产条件,并将其与现代手作毛毡、传统游牧制毡、周边国家和地区的传统制毡工艺进行对比,阐释内蒙古地区毡靴制作技艺在民族融合中产生的优势,并分析传统手工毡靴制作中的造物理念与工匠精神。

多靶区经颅直流电刺激对健康成年人工作记忆-姿势控制双任务表现的影响

目的探究多靶区经颅直流电刺激(tDCS)和单靶区tDCS对健康成年人工作记忆-姿势控制双任务表现的影响,并比较两种刺激方案的调控效果。方法2020年11月至2021年2月,招募上海体育大学19例健康成年人,随机接受多靶区tDCS、单靶区tDCS和假刺激,任意两种刺激之间至少间隔1周。其中,多靶区tDCS的目标靶区为左侧背外侧前额叶(LDLPFC)和双侧初级运动皮质(M1);单靶区tDCS仅刺激L-DLPFC。在每种刺激前后,所有受试者进行单任务和双任务条件下的步行和站立平衡测试,双任务中的第二任务为N-back任务。刺激前后观察双任务姿势控制表现、双任务消耗(DTC)和工作记忆表现。结果刺激后,3种刺激间双任务步行的步幅变异性(F=3.792,P=0.029)、步幅变异性_DTC(F=3.412,P=0.040)以及双任务站立平衡的压心摆动速度(Vcop)(F=3.815,P=0.029)有显著性差异。与假刺激相比,多靶区tDCS后,步幅变异性(P=0.047)和Vcop(P=0.015)降低,步幅变异性_DTC有降低趋势(P=0.073);单靶区tDCS后,步幅变异性(P=0.011)、步幅变异性_DTC(P=0.014)和Vcop(P=0.025)均降低。与单靶区tDCS相比,多靶区tDCS后,压心摆动面积的双任务消耗降低(P=0.035)。3种刺激后受试者工作记忆表现改变无显著性差异(P>0.05)。结论多靶区tDCS和单靶区tDCS均可调控健康成年人的工作记忆-姿势控制双任务表现;且与单靶区tDCS相比,多靶区tDCS在调控站立平衡双任务姿势控制效果上具有一定优势。

关节囊髋臼成形术治疗大龄儿童Legg-Perthes病

目的 :定期随访评价关节囊髋臼成形术治疗Legg Perthes病。方法 :2 5例 (平均 8.4岁 )Legg Perthes病中 ,CatterallⅠ型 1例 ,Ⅱ型 9例 ,Ⅲ型 7例 ,Ⅳ型 8例。采取临床和X线片测定 ,记录髋关节功能以及手术前后股骨头外移半脱位指数 ,髋臼覆盖百分比 ,股骨头宽指数和髋臼指数。结果 :术后平均随访 2 4(8～ 5 2 )个月。全部2 5例均获得优良临床结果。股骨头外移半脱位指数 ,术前为 1.3 83 8,术后为 1.3 2 0 0 (P >0 .0 5 ) ;髋臼覆盖百分比 :术前为 0 .785 0 ,术后为 1.10 0 0 (P <0 .0 1) ;股骨头宽指数 ,术前为 1.0 879,术后为 1.14 3 3 (P >0 .0 5 ) ;髋臼指数 ,术前为 2 0 .9167,术后为 7.0 83 3 (P <0 .0 1)。结论 :关节囊髋臼成形术是治疗大龄儿童Legg Perthes病手术方法之一 ,其效果确实 ,无需特殊器械 ,费用相对较低 ,并发症少。

温度回升对坝体运行后期工作性态的影响研究

温度回升一直是大坝施工运行期间研究的重点之一。为此,结合周宁碾压混凝土重力坝,通过仿真建模,线性计算,采用张国新等人提出的高掺粉煤灰混凝土水化热温升组合函数模型,分析预测坝体后期温度回升,探究其对坝体变形、应力的影响。仿真预测结果表明,温度回升会在建坝4~5 a后达到峰值,温度回升对坝体变形的影响较小,温度回升至稳定后变形逐渐消除;对应力的影响总体来说是有利的,局部区域会产生拉应力过大。温度回升是一个长期过程,需要在大坝运行期工作性态安全评估充分考虑温度回升的影响。该研究预测性地分析了温度回升可能发生后对坝体运行后期工作性态的影响,可为其他工程温度回升的研究提供参考。

山西省集体土地所有权确权登记成果更新汇交实务探析

通过全面清理整合农村集体土地所有权确权登记存量数据,消除各类数据之间的矛盾和冲突,建立各类数据之间的联系,形成统一的不动产地籍“一张图”,实现空间、属性及登记业务等数据一体化存储,达到图、属一体化管理。根据相关法律法规和政策文件,结合实际工作经验,对集体土地所有权登记成果更新汇交工作进行一些思考。

基于机器人应用技术及视觉识别技术的自动折铁系统改进

针对炼钢生产倒罐工序引进基于机器人应用技术及视觉识别技术的自动折铁系统在试运行中,存在机器人插接成功率低,机器人本体抓手检测元件不适用于现场生产环境,自动折铁模型在网络硬件发生故障时可能引发重大设备事故等问题,采取了优化鱼雷罐插座定位销尺寸和结构,增加机器人对鱼雷罐的跟踪检测功能,优化自动折铁模型作业程序等措施后,大大提高了自动折铁系统的智能化程度,提高了作业安全系数,保证了生产的顺行。

某矿巷道支护工序优化

为解决某矿围岩破碎、巷道锚网支护设施损坏严重、返修频率高等问题,应用爆破振动和围岩与支护相互作用机理分析了支护失效的原因,提出了“掘到哪儿,支到哪儿,喷到哪儿”的喷锚网优化支护工序。即新掘进的巷道及时清理浮石以后,首先采用素喷一层厚度50~100 mm的混凝土,然后进行钢网和锚杆支护,最后再喷一层厚度50~100 mm的混凝土。经过可行性分析和现场工业试验,证明可在不改变原支护工艺和支护材料的基础上,通过调整和优化施工顺序,可以提高支护效果,维护巷道围岩稳定,比现行支护工序节约86142.71元,研究成果可供同类矿山参考借鉴。

车行天桥先桥后堑施工技术

为实现高速公路与地方路网的有效融合,高速公路会与地方路网、水网、管网等设施设备交叉,常采用上跨、下穿高速公路方案,保证地方路、水、管网等畅通,施工中采取先修临时保通工程再修建永久保通工程。在某些地方受基本农田土地政策严控影响,在高速公路红线外无法征地修建临时保通道路,这样就需要在施工技术上研究,以实现高速公路建设和基本农田占用、地方道路通行的有机结合。该文以广绵高速某深挖路堑车行天桥逆作施工为例,从设计方案调整、施工方案重点控制等方面介绍车行天桥逆作施工技术,希望对同类工程起到一定的借鉴作用。