基于Room的持久存储的设计与优化

Room库作为一种强大的数据库轻量级持久化框架,广泛应用于Android应用的持久存储设计。文章介绍了Room库的核心架构和组件,提出了Room性能优化的策略,以提高数据库操作的效率和响应性,对构建高质量、高性能的Android应用程序有一定的指导意义。

Enhancing Patient Safety in the Operating Room: A Comprehensive Guide from a Nurse’s Perspective

Ensuring patient safety within the operating room is a paramount concern in contemporary healthcare, and this guide aims to provide an in-depth exploration of this crucial aspect from the perspective of nurses. Nurses play a pivotal role in supporting surgeons and maintaining a safe environment for patients undergoing various medical procedures.

Epidemiological Aspects of Stillbirth and Neonatal Deaths in the Delivery Room at the Libreville Mother-Child University Hospital from 2019 to 2022

Introduction: Stillbirths are estimated at 2 million each year, of which more than 40% occur during labour. Our objective was to study the epidemiological aspects of stillbirth and neonatal deaths in the delivery room in our health facility. Patients and methods: Prospective, descriptive and analytical study, conducted at the Jeanne Ebori Foundation Mother-Child University Hospital over 4 years (January 2019-December 2022). All neonatal deaths in the delivery room or foetal death in utero, were included. Results: Among the 18,346 deliveries performed, 512 newborns were declared dead in the delivery room (27.9‰ live births), divided into in utero foetal death (19.0‰) and immediate neonatal death (8.9‰). The mean age was 34.3 weeks of amenorrhea. The rate of preterm birth was 60.4%. The sex ratio was 1.1. The average weight was 2186.6. The main causes were vascular (46.1%), foetal (20.2%), adnexal (17.1%) and asphyxia per partum (16.6%). Foetal causes were more likely to result in IUFD than other causes (OR = 6.4 [2.4 - 15.7], p < 0.001). After birth, partum asphyxia was more likely to lead to death before 15 minutes of life than other causes (OR = 11 [6.1 - 18.9], p Conclusion: The causes of stillbirth and early neonatal mortality are dominated by maternal vascular pathologies. However, the proportion of childbirth-related causes remains worrying. Better monitoring of pregnancy and labour will minimize this prevalence in our hospital.

The Impact of Optimizing Details in the Operating Room on the Level of Knowledge, Attitude, and Practice of Hospital Infection Prevention and Control by Surgeons, as Well as the Effectiveness of Infection Control

Objective: This paper aims to explore the impact of optimizing details in the operating room on the level of knowledge, attitude, and practice of hospital infection prevention and control by surgeons, as well as the effectiveness of infection control. Methods: From January 2022 to June 2023, a total of 120 patients were screened and randomly divided into a control group (routine care and hospital infection management) and a study group (optimizing details in the operating room). Results: Significant differences were found between the two groups in the data of surgeons’ level of knowledge, attitude, and practice in hospital infection prevention and control, infection rates, and nursing satisfaction, with the study group showing better results (P Conclusion: The use of optimizing details in the operating room among surgeons can effectively improve surgeons’ level of knowledge, attitude, and practice in hospital infection prevention and control, reduce infection occurrence, and is worth promoting.

基于沉浸式体验的VR社交平台设计研究——以REC ROOM为例

为探究VR社交平台的设计方法。文章将从沉浸式体验这一理论入手,以Rec Room平台为例,从技术、内容、交互三方面分析VR社交平台发展的时代背景与设计现状。总结了沉浸式VR社交平台的设计特点与模式。在技术的驱动下,以沉浸式体验为基础的VR社交平台拓展了人们的交流空间,形成了更高的自由度与互动性,以自然化、真实化的多感官交互方式,提升了用户的参与感、临场感、娱乐感与愉悦感。

猪精液常温保存的影响因素及抗氧化剂的应用

猪的人工授精技术发展促进了养猪业规模扩大和专业化程度提升,提高猪精液的保存效果是推进人工授精技术发展的关键。目前,大部分猪精液为常温保存,但这一保存方法容易导致精液内活性氧过度积累,降低精液质量。稀释剂中加入适量的抗氧化剂,能够改善猪精液的质量并延长保存期限。本文综述了猪精液常温保存的主要影响因素和抗氧化剂在猪精液常温保存稀释剂中的应用进展,以期为抗氧化剂在猪精液常温保存中的应用提供理论支持,并为开发新型猪精液稀释剂提供参考。

采前氯化钙和水杨酸处理对蟠枣采后贮藏品质的影响

为探究采前处理对蟠枣果实采后贮藏品质的影响,以新疆主栽鲜食品种蟠枣为研究对象,分别于果实花期、幼果期、膨大期、着色期采用清水(CK)、10 g/L氯化钙(CaCl_(2))、100 mmol/L水杨酸(SA)和10 g/L CaCl_(2)+100 mmol/L SA进行采前喷施处理,采收后置于常温货架贮藏,每天统计果实的转红率、转红指数、腐烂率和失重率,测定果实的可溶性固形物含量、硬度和色泽等指标。结果表明:采前喷施CaCl_(2)、SA和CaCl_(2)+SA均可一定程度上抑制蟠枣的转红和腐烂,使其保持较低的失重率,使果实维持较高的可溶性固形物含量和硬度,保持较好的色泽,其中,10 g/L CaCl_(2)+100 mmol/L SA采前处理效果最佳,常温货架8 d时,果实的转红率和腐烂率分别较对照低23.34个百分点和36.66个百分点,失重率仅为1.68%,果实可溶性固形物含量维持在21.47%,硬度为9.45 kg/cm^(2),保持较好的商品性。综上,采前喷施10 g/L CaCl_(2)+100 mmol/L SA能有效保持蟠枣采后贮藏品质。

NICU早产儿母乳喂养链式管理效果评价

目的观察链式管理对NICU早产儿母乳喂养及喂养并发症的影响。方法将180例NICU早产儿按入院时间分为对照组和试验组各90例。对照组实施常规NICU母乳喂养策略,试验组在对照组基础上进行链式管理,构建并实施产房、产科和NICU间横向管理和各科室内部纵向管理。结果最终对照组82例、试验组81例早产儿完成研究。干预后,试验组纯母乳喂养率显著高于对照组,试验组早产儿喂养不耐受、坏死性小肠结肠炎、宫外发育迟缓和新生儿高胆红素血症发生率显著低于对照组(均P<0.05),试验组恢复至出生体质量日龄显著短于对照组,出院体质量显著大于对照组(均P<0.05)。结论链式管理有利于提高NICU早产儿的纯母乳喂养率,降低喂养并发症发生率,促进新生儿生长发育。

组建跨校虚拟教研室提升研究生专业课教学质量——车用发动机排放控制技术课程改革探索

组建跨校专家教学团队,采用跨校虚拟教研室模式,以“三全”和“思政”元素融入课堂,探索一条提升研究生专业课程教学质量的途径。以车用发动机排放控制技术课程为例,从教师团队组建、课程内容设置、学生获得感三个方面,紧抓课堂教学主渠道,以多名跨校专家高质量授课形式潜移默化地体现科学家精神和立德树人理念。推崇以科研促进专业课教学,学生掌握必备专业知识,具备工程伦理和思辨思想。课程改革实施后,极大增强学生的家国情怀、爱岗敬业和学科自信,更加积极主动地投身科研,为提升研究生教育质量打下基础。

Evaluation of Operating Room Noise by Different Medical Specialists

Noise pollution is in an increasing trend in the operating rooms, as has been the case in various other domains in life. It has been shown in studies that the main cause of this noise pollution consist of the behavior related to the operating room personel and the surgical equipment. These higher than normal noise levels may increase stress and decrease communication and performance, apart from the negative health effects on the operating team. In this study, we aimed to explore the sources of noise pollution and the place of music on these effects on anesthesiology and surgical doctors. Questions formulated through a questionnaire have been asked to the anesthesiology and surgical department physicians on a voluntary basis, and their approach to the concept of noise has been assessed. The study was planned as a descriptive study. In total, highest impact from noise pollution was found to be the aspirator (74.3%), chatting (55.4%), noises from the monitors (54.8%), alarms (48.6%), surgical material (25.9%) and music (23.8%). Noise had the most impact on the concentration of the doctors with a rate of 61.9%. Anesthesiologists, when compared to other surgical department physicians, were found to be impacted most by music with 37.2%. It is not realistic to eliminate all the noise and distraction. On the other hand, it can be minimalized through sufficient measures. Yet, general measures to keep the silence isn’t too likely to keep the noise down during long operations. Whereas music stays as a matter of personal choice. Controlled studies on whether to keep or not the music in the operating rooms aren’t yet sufficient, due to which, general recommendations do not apply. As a result of this study, we have found that while music might have performance increasing effects, it still has a potential as a distraction and interfere with the communication in the operating room.

Influence of Robot-Assisted Tumor Surgery Nursing on Patient Rehabilitation in Operating Room and Discussion on Nursing Strategies

Objective: To evaluate the effect of operating room nursing on the outcome of patients undergoing robot-assisted tumor surgery. Methods: This research starts from October 2021 to October 2022. The number of patients with robot-assisted tumor surgery included in our hospital is 769. The patients are treated in the operating room, and the prognosis of the patients is summarized. Results: The intraoperative blood loss in patients undergoing robot-assisted tumor surgery was (57.51 ± 12.01) ml;the operation time was (3.57 ± 0.66) h;and the hospital stay was (6.04 ± 0.53) d. There were 21 cases of complications after robot-assisted tumor surgery, accounting for 2.73%. After surgery, all robot-assisted tumor surgery patients recovered and were discharged smoothly after being checked by doctors. Conclusion: Robot-assisted tumor surgery nursing has a definite effect on patients’ rehabilitation in the operating room.

基于客观结构化临床考试的情景模拟式教学在手术室专科护士培训中的应用

目的探讨基于客观结构化临床考试(objective structured clinical examination,OSCE)的情景模拟式教学在手术室专科护士培训中的应用效果。方法选取参加郑州大学第一附属医院手术室专科护士培训的78名学员为研究对象。按照培训时间先后顺序,将2021年4月-6月参加培训的40名学员作为对照组,将2022年4月-6月参加培训的38名学员作为观察组。对照组采用常规情景模拟式教学,观察组采用基于OSCE的情景模拟式教学,比较2组操作考核成绩、临床思维能力。结果观察组操作考核中患者核查交接、手术体位安置、职业暴露防护的考核成绩均好于对照组(t=4.616,P<0.001;t=3.004,P=0.004;t=3.574,P=0.001),观察组临床思维能力得分高于对照组(t=7.309,P<0.001)。结论将基于OSCE的情景模拟式教学应用于手术室专科护士培训,有助于提高其操作技能和临床思维能力,值得临床推广应用。

Environmentally Friendly Room Temperature Synthesis of 1-Tetralone over Layered Double Hydroxide-Hosted Sulphonato-Salen-Nickel(II) Complex

1-Tetralone, a useful synthetic intermediate in the manufacture of pharmaceuticals, agrochemicals and dyes, can be prepared by liquid phase catalytic oxidation of tetralin. Selective oxidation of tetralin to 1-tetralone is still a big challenge with low-temperature processes using environmentally friendly routes even after decades of research. Herein, we demonstrate room-temperature oxidation of tetralin to 1-tetralone over layered double hydroxide-hosted sulphonato-salen-nickel(II) complex, LDH-[Ni-salen]. The layered double hydroxide-hosted sulphonato-salen-nickel(II) compound was characterized by powder X-ray diffraction, Fourier transform infrared spectrometer (FTIR), UV-Visible diffuse reflectance spectra, scanning electron microscopy (SEM) and elemental analysis. The theoretical calculations of free sulphonato-salen-nickel(II) complex using Density Functional Theory/CAM-B3LYP at the 6-311++ G(d,p) level of theory were also used to determine the orientation of the Ni-salen compound within the layered structure. The immobilized compound, LDH-[Ni-salen] was found to be an effective reusable catalyst for the oxidation of tetralin to 1-tetralone using a combination of trimethylacetaldehyde and molecular oxygen (14.5 psi) and at 25&deg;C. At 45.5% conversion, tetralin was converted to 1-tetralone with 77.2% selectivity at room temperature and atmospheric pressure after 24 h. The catalyst recycles test and hot filtration experiment showed that oxidation proceeded through Ni(II) sites in LDH-[Ni-salen]. The catalysts were reused several times without losing their catalytic activity and selectivity. The present results may provide a convenient strategy for the preparation of 1-tetralone using layered double hydroxide-based heterogeneous catalyst at ambient temperature for industrial application in near future.

手术室精细化护理对心脏手术患者切口感染及护理满意度的效果分析

探讨手术室精细化护理对降低心脏手术患者术后切口感染程度以及护理满意度的效果,以减少心脏手术患者的切口感染率、提高患者对护理工作的满意度。根据非概率抽样方法选取在XXX医院心血管外科进行心脏手术治疗的64例患者为研究对象,将其分为治疗组和对照组,每组各32例。治疗组采取手术室精细化护理,对照组采用手术室常规护理。比较两组患者的病原菌检测、切口感染率及感染控制率、护理工作满意度等。结果表明,治疗组病原菌检出率、切口感染率显著低于对照组,感染控制率显著高于对照组(P<0.05),治疗组对手术室精细化护理的满意度显著好于对照组(P<0.05)。说明手术室精细化护理可有效预防心脏手术患者的术后切口感染,促进其愈合,并提高患者对护理工作的满意度。

手术室护理管理对降低院感发生率与提升护理安全质量的影响

目的探讨分析手术室护理管理对降低院感发生率与提升护理安全质量的影响。方法本次研究病例治疗时间段为2021年1月至2023年1月,研究对象选择方式为计算机随机抽选,均为我院接受手术治疗的患者,组别划分标准为护理干预方式差异,其一为常规护理,其二为手术室护理干预,分别对应对照组与观察组,各组分别有68例患者,共计136例符合条件患者,对研究完成后结果进行比较与分析。结果观察组院感发生率达到了2.94%,对照组达到了14.71%,观察组的院感发生率要明显更低(P<0.05)。患者的服务态度、文书质量、操作技能、管理能力以及风险识别水平评估分值均相对更高的为观察组(P<0.05)。观察组的满意度高于对照组(P<0.05)。结论临床实施手术室护理管理干预,能够有效降低患者发生院感的概率,使临床护理质量水平得到显著提升,为患者提供更加安全可靠的治疗环境,提高患者对医院及医护人员的满意度。

基于信息化平台的急诊危重症患者护理核查单的设计及应用

目的探讨基于信息化平台的急诊危重症患者护理核查单的设计及应用效果。方法基于院内信息化平台,设计急诊危重症患者护理核查单。采用前瞻性类实验性研究方法,观察危重症患者护理核查单应用前后护理交接班的遗漏率、临床护理效果和护理质量。结果应用急诊危重症患者护理核查单后,护士在管路、通气方式、留置针、用药、皮肤和约束方面的交接班遗漏率显著低于应用前(均P<0.05);临床护理效果和护理质量较核查单应用前显著提升(均P<0.05)。结论基于信息化平台的急诊危重症患者护理核查单的应用可减少护士交接班的遗漏内容,提高护理记录准确性,并缩短书写时长,提高护理质量。

手术室外麻醉工作单元麻精药品同质化管理的探讨

目的探索运用同质化管理模式在手术室外麻醉工作单元麻精药品管理中的作用。方法从2021年7月开始运用同质化管理模式对手术室外麻醉工作单元麻精药品进行管理,通过制定同质化管理流程,比较和分析同质化管理模式实施后每季度麻精药品质量管理指标的比值率。结果每季度管理指标评分均有明显提升。结论运用同质化管理模式在手术室外麻醉工作单元麻精药品管理中,能有效提高麻精药品的管理质量,达到药品规范化、精细化、安全化管理的目的,值得推广。

上海地铁某车站空调系统高效制冷机房改造实测分析

地铁车站空调系统高效技术是当前轨道交通节能降碳的主要手段,针对上海某地铁车站制冷机房高效化改造的具体情况、改造效果、能效提升进行了详细的分析和研究。改造选择了磁悬浮冷水机组,应用了变频技术来优化水泵的运行,改造后空调季制冷机房平均能效比达到5.16,年节电量约为30万kWh,节能效果显著。通过对制冷机房运行数据进行对比分析得知,负载率的优化对冷水机组能效具有直接而显著的影响,通过调整冷机出水温度和优化水泵变频策略,能进一步提高制冷机房的能效,为地铁车站制冷机房高效化改造和能效提升提供参考和帮助。

医疗机构日间手术开展及规范化管理现况调查

目的:通过对医疗机构日间手术开展情况进行调查,了解日间手术开展及管理现状,为我国医疗机构日间手术建设、规范化管理等提供参考。方法:基于文献研究自行研究设计问卷条目,通过专家咨询形成调查问卷,对我国医疗机构的日间手术开展的机构、科室及病种,管理模式、限制因素、指标监测等进行问卷调查和数据分析。结果:在380所开展日间手术的医疗机构中,有96所(25.3%)是中国日间手术合作联盟机构,196所(51.6%)医院将≤24 h住院时间手术定义为日间手术,184所(48.4%)医院则将≤48 h住院时间手术定义为日间手术。日间手术开展涉及15个临床专科,普外科(275个,占72.4%)是开展最多的专科;开展日间手术最多的专科数量是3个(13.9%);排前5位疾病是白内障(36.3%)、乳房肿物(35.0%)、腹股沟疝(21.6%)、体表肿物(18.9%)和宫腔肿物(13.7%);在管理模式中,45.5%(173所)的医疗机构采用混合模式管理,41.8%(159所)采用分散管理。在7项日间手术安全质量控制评价指标中,日间手术7天内非计划性再入院率(97.1%)、手术30天内非计划再入院率(96.8%)和日间手术后30天内死亡例数(96.8%)的指标检出率在96.0%以上,剩余指标检出率相对较低。限制日间手术开展的前3位因素是日间手术风险高(60.3%)、医院决策层支持力度低(44.2%)和绩效考核分配不合理(43.2%)。结论:日间手术开展专科数量少、病种简单、质量控制薄弱、管理模式模糊、安全保障有待改进,极大阻碍了日间手术发展。未来在大力推进日间手术过程中,应加强医疗机构的临床集中管理、日间手术制度建设和质量安全评价指标督查,构建安全、同质、科学的日间手术诊疗环境,不断提高日间手术技术水平与服务能力。

工作沉浸感在手术室护士工效学负荷与职业召唤间的中介作用

目的探讨工作沉浸感在手术室护士工效学负荷与职业召唤间的中介作用,为提高手术室护士职业召唤水平提供参考。方法采用便利抽样法选取218名手术室护士,采用一般资料调查表、护士工作沉浸感量表、手术室护士人体工效学评价问卷和职业召唤量表进行调查。结果218名手术室护士工效学负荷总分(50.47±9.84)分,职业召唤(38.78±5.59)分,工作沉浸感(129.37±11.19)分。手术室护士人体工效学负荷与职业召唤及工作沉浸感呈负相关(r_(1)=-0.645,r_(2)=-0.477,P<0.01),工作沉浸感与职业召唤呈正相关(r_(3)=0.517,P<0.01)。工作沉浸感在手术室护士工效学负荷与职业召唤间起部分中介作用,中介效应占总效应的20.2%。结论手术室护士职业召唤处于中等水平,护士工效学负荷既可以直接负向预测职业召唤,也可以通过降低护士的工作沉浸感间接影响职业召唤。提示医院管理者应关注手术室护士工效学负荷,采取相关措施降低其工效学负荷,提高护士工作沉浸感来提高职业召唤水平。