scholarly journals Assessment age of air and thermal comfort in a classroom by adopting displacement ventilation with chilled ceiling system

2021 ◽  
Vol 9 (ICRIE) ◽  
Author(s):  
Ali Aedan Shbeeb ◽  
◽  
Ala'a Abbas Mahdi ◽  
Ahmed Kadhim Hussein ◽  
◽  
...  
Keyword(s):  
Load Ratio ◽  
Comfort Level ◽  
Airflow Rate ◽  
Cooling Load ◽  
Displacement Ventilation ◽  
Comfort Levels ◽  
The Mean ◽  
Chilled Ceiling ◽  
Increasing Load ◽  
Air Exchange

This study aims to investigate the effect of the cooling load ratio covered by the chilled ceiling on the age of air and comfort level in a classroom in a hot and dry climate in Iraq-Hilla city. Air age, air exchange efficiency, and concentrations of pollutants in a classroom are investigated numerically by used AIRPAK software under displacement ventilation combined with a chilled ceiling system. Four cases are studied at different values of the cooling load covered by the chilled ceiling (0%, 25%, 50%, 80%) with respect to total classroom cooling load. Cooling load removes by chilled ceiling varied from (0 to 84.5 W/m2) based on the classroom area, and its temperature varied between (17.5-22.5oC). The displacement ventilation airflow rate was kept at 0.3m3/s, and the air temperature supply varied between (19.5-24.5oC) depend on the amount of cooling load covered by displacement ventilation. The results showed that the mean local air age increasing with height. The room mean air age increase and air exchange efficiency reduce with increasing load portion, which treated by the chilled ceiling. Increasing the portion of the load treated by chilled ceiling tends to improve comfort levels.

Determination of comfort levels of women with urinary incontinence

2021 ◽  
Vol 11 (1) ◽  
pp. 88-96
Author(s):  
Sebnem Yücel Çinar ◽  
Handan Özdemir ◽  
Gamze Goke Arlsan ◽  
Eda Ergin ◽  
Seda Gurcan
Keyword(s):  
Quality Of Life ◽  
Urinary Incontinence ◽  
Educational Attainment ◽  
Short Form ◽  
Comfort Level ◽  
Comfort Levels ◽  
Study Results ◽  
The Mean ◽  
Number Of Births

Purpose: This descriptive study was planned to investigate the comfort levels of women with urinary incontinence. Materials and methods: The study comprised 219 women with a complaint of urinary incontinence admitted to the outpatient clinic of Obstetrics and Gynecology Department of a university hospital between June – December 2015. The Sociodemographic Characteristics Questionnaire, Urinary Incontinence & Frequency Comfort Questionnaire (UIFCQ), and International Consultation on Incontinence Questionnaire Short Form (ICIQ-SF) were used. Results: The study results demonstrated that the mean score the participants obtained from the UIFCQ was 4.20 ± 0.74 and that their comfort levels were moderate. Their mean score for the ICIQ-SF was 10.41± 4.98, and urinary incontinence adversely affected their quality of life in 74% of them. While the mean UIFCQ scores were KW = 48.673, p=0.00 for the frequency of urinary incontinence, t=2.33, p=0.02 for receiving treatment, KW = 58.267, p = 0.00 for the amount of urinary leakage, KW=26.37, p=0.00 for the educational attainment, t=7.04, p=0.03 for the number of births, the mean ICIQ-SF scores were KW = 13.74, p =0.00 for the educational attainment and t = 24.02, p=0.00 for the number of births (p <0.05). Conclusions: It was determined that the comfort level of the participants with urinary incontinence was moderate, that urinary incontinence affected the quality of life and that as their comfort level increased, so did their quality of life.

Increasing Energy Efficiency of HVAC Systems of Buildings Using Phase Change Material

2011 ◽  
Author(s):  
Lee Chusak ◽  
Jared Daiber ◽  
Ramesh Agarwal
Keyword(s):  
Thermal Comfort ◽  
Phase Change ◽  
Phase Change Material ◽  
Energy Requirements ◽  
Exterior Wall ◽  
Displacement Ventilation ◽  
Cooling Systems ◽  
Comfort Levels ◽  
Chilled Ceiling ◽  
Change Material

Using Computational Fluid Dynamics (CFD), four different cooling systems used in contemporary office environments are modeled to compare energy consumption and thermal comfort levels. Incorporating convection and radiation technologies, full-scale models of an office room compare arrangements for (a) an all-air overhead system (mixing ventilation), (b) a combined air and hydronic radiant system (overhead system with a chilled ceiling), (c) an all-air raised floor system (displacement ventilation), and (d) a combined air and hydronic radiant system (displacement ventilation with a chilled ceiling). The computational domain for each model consists of one temperature varying wall (simulating the temperature of the exterior wall of the building during a 24-hour period) and adiabatic conditions for the remaining walls, floor, and ceiling (simulating interior walls of the room). Two sets of computations are conducted. The first set considers a glass window and plastic shade configuration for the exterior wall to compare the four cooling systems. The second set of computations consider a glass window, a phase change material layer and the plastic shade configuration for the exterior wall to examine the effect of the phase change material (PCM) layer on the cooling energy requirements. Both sets of simulations assumed an external wall that changed temperature as a function of time simulating the temperature changes on the exterior wall of the room during a 24 hour period. Results show superior thermal comfort levels as well as substantial energy savings can be accrued using the displacement ventilation and especially the displacement ventilation with a chilled ceiling over the conventional overhead mixing ventilation system. The results also show that the addition of a PCM layer to the exterior wall can significantly decrease the cooling energy requirements.

Reducing Energy Demand in Commercial Buildings: Balancing Convection and Radiant Cooling

2010 ◽  
Author(s):  
Lee Chusak ◽  
Andrew Harris ◽  
Ramesh Agarwal
Keyword(s):  
Thermal Comfort ◽  
Energy Demand ◽  
Energy Savings ◽  
Ventilation System ◽  
Computational Domain ◽  
Exterior Wall ◽  
Displacement Ventilation ◽  
Comfort Levels ◽  
Isothermal Wall ◽  
Chilled Ceiling

Using Computational Fluid Dynamics (CFD) software, three different cooling systems used in contemporary office environments are modeled to compare energy consumption and thermal comfort levels. Incorporating convection and radiation technologies, full-scale models of an office room compare arrangements for (a) an all-air overhead system (mixing ventilation), (b) an all-air raised floor system (displacement ventilation), and (c) a combined air and hydronic radiant system (displacement ventilation with a chilled ceiling). The computational domain for each model consists of one isothermal wall (simulating an exterior wall of the room) and adiabatic conditions for the remaining walls, floor, and ceiling (simulating interior walls of the room). Two sets of computations were conducted. The first set of computations utilized a constant temperature isothermal exterior wall, while the second set utilized an isothermal wall that changed temperatures as a function of time simulating the temperature changes on the exterior wall of a building throughout a 24 hour period. Results show superior thermal comfort levels as well as substantial energy savings can be accrued using the displacement ventilation, especially the displacement ventilation with a chilled ceiling over the conventional mixing ventilation system.

scholarly journals Improving Psychological Comfort of Paramedics for Field Termination of Resuscitation through Structured Training

2021 ◽  
Vol 18 (3) ◽  
pp. 1050
Author(s):  
Chungli Bang ◽  
Desmond Ren Hao Mao ◽  
Rebacca Chew Ying Cheng ◽  
Jen Heng Pek ◽  
Mihir Gandhi ◽  
...  
Keyword(s):  
Training Session ◽  
Comfort Level ◽  
Domain Specific ◽  
Sociocultural Attitudes ◽  
Comfort Levels ◽  
Before And After ◽  
Change In The Mean ◽  
The Mean ◽  
The Impact ◽  
Self Administered Questionnaire

This study examines the impact of a newly developed structured training on Singapore paramedics’ psychological comfort before the implementation of a prehospital termination of resuscitation (TOR) protocol. Following a before and after study design, the paramedics underwent a self-administered questionnaire to assess their psychological comfort level applying the TOR protocol, 22 months before and one month after a 3-h structured training session. The questionnaire addressed five domains: sociocultural attitudes on resuscitation and TOR, multi-tasking, feelings towards resuscitation and TOR, interactions with colleagues and bystanders and informing survivors. Overall psychological comfort total (PCT) scores and domain-specific scores were compared using the paired t-test with higher scores representing greater comfort. Ninety-six of the 345 eligible paramedics responded. There was no statistically significant change in the mean PCT scores at baseline and post-training; however, the “feelings towards resuscitation and TOR” domain improved by 4.77% (95% CI 1.42 to 8.13 and p = 0.006) and the multi-tasking domain worsened by 4.11% (95% CI −7.82 to −0.41 and p = 0.030). While the structured training did not impact on the overall psychological comfort levels, it led to improvements in the feelings of paramedics towards resuscitation and TOR. Challenges remain in improving paramedics’ psychological comfort levels towards TOR.

Speech-Language Pathologists' Comfort Level With Use of Term “Stuttering” During Evaluations

2020 ◽  
Vol 29 (2) ◽  
pp. 841-850 ◽  
Author(s):  
Courtney T. Byrd ◽  
Danielle Werle ◽  
Kenneth O. St. Louis
Keyword(s):  
Communication Disorders ◽  
Academic Experiences ◽  
Comfort Level ◽  
Future Research ◽  
Clinical Experiences ◽  
Speech Language Pathologists ◽  
Comfort Levels ◽  
Parents And Children ◽  
Evaluation Feedback ◽  
Study Participants

Purpose Speech-language pathologists (SLPs) anecdotally report concern that their interactions with a child who stutters, including even the use of the term “stuttering,” might contribute to negative affective, behavioral, and cognitive consequences. This study investigated SLPs' comfort in providing a diagnosis of “stuttering” to children's parents/caregivers, as compared to other commonly diagnosed developmental communication disorders. Method One hundred forty-one school-based SLPs participated in this study. Participants were randomly assigned to one of two vignettes detailing an evaluation feedback session. Then, participants rated their level of comfort disclosing diagnostic terms to parents/caregivers. Participants provided rationale for their ratings and answered various questions regarding academic and clinical experiences to identify factors that may have influenced ratings. Results SLPs were significantly less likely to feel comfortable using the term “stuttering” compared to other communication disorders. Thematic responses revealed increased experience with a specific speech-language population was related to higher comfort levels with using its diagnostic term. Additionally, knowing a person who stutters predicted greater comfort levels as compared to other clinical and academic experiences. Conclusions SLPs were significantly less comfortable relaying the diagnosis “stuttering” to families compared to other speech-language diagnoses. Given the potential deleterious effects of avoidance of this term for both parents and children who stutter, future research should explore whether increased exposure to persons who stutter of all ages systematically improves comfort level with the use of this term.

60. Using a pocket card to improve end-of-life care on clinical teaching units: A controlled trials

2007 ◽  
Vol 30 (4) ◽  
pp. 61
Author(s):  
J. Downar ◽  
J. Mikhael
Keyword(s):  
End Of Life ◽  
Symptom Management ◽  
End Of Life Care ◽  
Palliative Medicine ◽  
Clinical Teaching ◽  
Intervention Group ◽  
Comfort Level ◽  
Control Group ◽  
Life Care ◽  
Comfort Levels

Although palliative and end-of-life is a critical part of in-hospital medical care, residents often have very little formal education in this field. To determine the efficacy of a symptom management pocket card in improving the comfort level and knowledge of residents in delivering end-of-life care on medical clinical teaching units, we performed a controlled trial involving residents on three clinical teaching units. Residents at each site were given a 5-minute questionnaire at the start and at the end of their medicine ward rotation. Measures of self-reported comfort levels were assessed, as were 5 multiple-choice questions reflecting key knowledge areas in end-of-life care. Residents at all three sites were given didactic teaching sessions covering key concepts in palliative and end-of-life care over the course of their medicine ward rotation. Residents at the intervention site were also given a pocket card with information regarding symptom management in end-of-life care. Over 10 months, 137 residents participated on the three clinical teaching units. Comfort levels improved in both control (p < 0.01) and intervention groups (p < 0.01), but the intervention group was significantly more comfortable than the control group at the end of their rotations (z=2.77, p < 0.01). Knowledge was not significantly improved in the control group (p=0.07), but was significantly improved in the intervention group (p < 0.01). The knowledge difference between the two groups approached but did not reach statistical significance at the end of their rotation. In conclusion, our pocket card is a feasible, economical educational intervention that improves resident comfort level and knowledge in delivering end-of-life care on clinical teaching units. Oneschuk D, Moloughney B, Jones-McLean E, Challis A. The Status of Undergraduate Palliative Medicine Education in Canada: a 2001 Survey. Journal Palliative Care 2004; 20:32. Tiernan E, Kearney M, Lynch AM, Holland N, Pyne P. Effectiveness of a teaching programme in pain and symptom management for junior house officers. Support Care Cancer 2001; 9:606-610. Okon TR, Evans JM, Gomez CF, Blackhall LJ. Palliative Educational Outcome with Implementation of PEACE Tool Integrated Clinical Pathway. Journal of Palliative Medicine 2004; 7:279-295.

scholarly journals Prevalence of abnormal PAP smears in antenatal women in a tertiary hospital in India

2016 ◽  
Author(s):  
Saritha Shamsunder ◽  
Akriti Gautam ◽  
Geetika Khanna ◽  
Sunita Malik
Keyword(s):  
Pregnant Women ◽  
Pap Smear ◽  
Cervical Screening ◽  
Developed Countries ◽  
Antenatal Clinic ◽  
Comfort Level ◽  
Good Time ◽  
Pap Smears ◽  
Minor Bleeding ◽  
The Mean

Background: Pregnancy provides a good time for opportunistic screening of our women who rarely attend for cervical screening. The prevalence of abnormal PAP smear in pregnant women in developed countries was 5-6%, however, no literature was available from India. Aim: To determine the prevalence of abnormal PAP smears in antenatal women presenting to our antenatal clinic. Methods: Women attending the antenatal clinic with gestation of <28 weeks were recruited after an informed consent and had a PAP smear by Ayre spatula and cytobrush or a broom type of cytobrush. The comfort level during smear taking & any problems noted were recorded using a pain score. The smears were stained using the PAP stain, were categorized as adequate or inadequate & classified as per Bethesda classification. Results: We had 150 women participating, the mean age was 24.2 yrs, the mean period of gestation was 17 weeks; 43.9% were nulliparous. Smear adequacy rate was 71.5% overall. Pain during procedure was reported in 2.9% of women, 18.3% had minor discomfort; 78.6% were comfortable. Minor bleeding during smear taking was noted in 15%; this was more with the cytobrush & broom than the Ayre spatula alone. Abnormal smears were seen in three women; two had AGC & one had LSIL. Conclusions: Opportunistic cervical screening during pregnancy is safe and well tolerated. Abnormal Cervical smears were seen in 2% of our pregnant women.

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