Purpose
This study aims to integrate the theory of planned behavior (TPB), norm activation model (NAM) and stimulus–organism–behavior–consequences theory (SOBC) with the moderators to investigate the ...main determinants of energy-saving behaviors as well as how group-level factors and media publicity significantly facilitate the energy-saving intention-behavior linkage among dormitory students in higher education institutions (HEIs).
Design/methodology/approach
A valid sample of 325 dormitory students resided in universities of Vietnam and a three-step analysis approach via SPSS 28.0 and AMOS 25.0 were used to test the hypothesized model.
Findings
This study yields that external stimuluses (subjective norms and perceived behavioral control) positively and strongly stimulate energy–energy attitude, while internal stimuluses (ascription of responsibility, awareness of consequences) arouse personal norms. Both internal and external stimuluses were found to have serially mediation effects on energy-saving behaviors via attitude toward energy saving, personal norms and energy-saving intention. Remarkably, group interaction and media publicity exert prominent positive moderation effects on the energy-saving intention–behavior relationship.
Practical implications
The findings of this research can be valuable for HEIs and policymakers to inspire university students’ energy conservation behavior for sustainable development goals.
Originality/value
This study contributed to the proenvironmental literature by adopting the SOBC paradigm that strengthens the integration of TPB and NAM models to explore the main determinants of dormitory students’ energy-saving behaviors, explain the underlying mediation mechanisms of organisms and behavioral responses and illustrate the moderation role of group-level factors and media publicity.
A two-stage treatment system that included vertical flow (VF) and free-water surface (FWS) constructed wetlands was investigated for the dual purposes of sewage treatment and reuse. The VF included ...four layers (biochar, sand, gravel, and sandy soil), and the FWS was installed after the VF and used as a polishing tank. Two types of local plants, namely Colocasia esculenta and Canna indica, were planted in the VF and FWS, respectively. The system operated for approximately six months, and the experimental period was categorized into four stages that corresponded to changes in the hydraulic loading rate (HLR) (0.02–0.12 m/d). The removal efficiencies for total suspended solids (TSS), chemical oxygen demand (COD), biological oxygen demand (BOD5), ammonia (NH4-N), and total coliform (Tcol) were 71 ± 11%, 73 ± 13%, 79 ± 11%, 91 ± 3%, and 70 ± 20%, respectively. At HLRs of 0.04–0.06 m/d, the COD and BOD5 levels satisfied Vietnam's irrigation standards, with removable rates of 64% and 88%, respectively, and the TSS and Tcol levels satisfied Vietnam's standards for potable water. Furthermore, the NO3-N levels satisfied the reuse limits, whereas the NH4-N levels exceeded the reuse standards. At high HLRs (e.g., 0.12 m/d), all the effluent parameters, except Tcol and NO3-N, exceeded the standards.
Display omitted
•A sewage treatment system with biochar and a constructed wetland was studied.•The COD and BOD5 levels of the system effluents met the irrigation standards.•All indicators except NH4-N satisfied the Vietnamese water supply standards.•The system most optimally processes water for irrigation at an HLR of 0.04–0.06 m/d.•Biochar is a promising medium for soil-based wastewater treatment systems.
Emerging research shows a high prevalence of fatigue and sleep problems among university students. The present study evaluates the effects of regular aerobic exercise on sleep quality and fatigue ...level among female students (ages 18-26) who reside in dormitories.
This quasi-experimental study involving 67 participants consisted of one experimental group (i.e., assigned aerobic exercise) and one control group (i.e., not assigned aerobic exercise). Participants in the experimental group received three one-hour sessions aerobic exercise weekly ranging from mild to moderate intensity for eight-week. Sleep quality and fatigue level were evaluated using the Pittsburgh Sleep Quality Index (PSQI) and standard Multidimensional Fatigue Inventory (MFI-20), respectively. These variables were assessed at baseline, week four, and week eight of the study.
After four and 8 weeks of the intervention, participants in the aerobic group showed improvement in the score of sleep quality (
< 0.001 and
< 0.0001, respectively) and its components (except for sleep duration after 4 weeks intervention). Also, aerobic exercise resulted in a significant reduction of the total score of fatigue and its dimensions in weeks four and eight, compared to the control group (
< 0.001).
Four-week aerobic exercise with mild intensity had no significant effect on sleep duration. Conversely, intensified aerobic exercise for 8 weeks influenced all components of sleep quality.
The study was registered on 6/2/2015 in the Iranian Registry of Clinical Trials (IRCT) with number IRCT201412282324N15.
Introduction Rhinitis is one of the most prevalent chronic respiratory diseases worldwide. There is emerging evidence suggesting that the indoor microbiome may contribute the onset and exacerbation ...of rhinitis symptoms, but comprehensive studies on this topic remain scarce. Methods In this study, we assessed the microbiome assemblage of settled air dust collected in Petri dishes in 86 dormitory rooms of Shanxi University, China using 16s rRNA sequencing. A self-administered questionnaire, including questions about rhinitis symptoms and personal information, was completed by 357 students residing in these dormitories. Logistic and linear regression model was applied to examine the associations between environmental characteristics, indoor microbiome, and rhinitis. Results The most abundant genera in the dormitories were Ralstonia (15.6%), Pelomonas (11.3%), Anoxybacillus (9.3%) and Ochrobactrum (6.2%). Taxa richness in the class of Actinobacteria and Fusobacteriia was negatively/protectively associated with rhinitis (p<0.05). Six bacterial genera, including those from Actinobacteria ( Actinomyces ), Fusobacteriia ( Fusobacterium ), and Bacteroidetes ( Prevotella and Capnocytophaga ), were negatively/protectively associated with rhinitis. Conversely, seven genera, predominantly from Alphaproteobacteria and Betaproteobacteria ( Sphingomonas, Caulobacter , uncharacterized Caulobacteraceae and Comamonadaceae ), were positively associated with rhinitis. Living in higher floor level and higher indoor PM 2.5 concentrations were associated with a higher abundance of taxa potentially protective against rhinitis and a lower abundance of taxa potentially increasing the risk of rhinitis (P<0.01). However, having curtain indoor and higher indoor CO 2 concentrations were associated with a lower abundance of taxa potentially protective against rhinitis and a higher abundance of taxa potentially increasing the risk of rhinitis (P<0.01). Discussion This study enhances our understanding of the complex interactions between environmental characteristics, indoor microbiomes, and rhinitis, shedding light on potential strategies to manipulate indoor microbiome for disease prevention and control.
Phthalates are widely used chemicals in household products, which severely affect human health. However, there were limited studies emphasized on young adults' exposure to phthalates in dormitories. ...In this study, seven phthalates were extracted from indoor dust that collected in university dormitories in Harbin, Shenyang, and Baoding, in the north of China. Dust samples were also collected in houses in Harbin for comparison. The total concentrations of phthalates in dormitory dust in Harbin and Shenyang samples were significantly higher than those in Baoding samples. The total geometric mean concentration of phthalates in dormitory dust in Harbin was lower than in house dust. Di-(2-ethylhexyl) phthalate (DEHP) was the most abundant phthalate in both dormitory and house dust. The daily intakes of the total phthalates, carcinogenic risk (CR) of DEHP, hazard index (HI) of di-isobutyl phthalate (DiBP), dibutyl phthalate (DBP), and DEHP were estimated, the median values for all students in dormitories were lower than adults who live in the houses. Monte Carlo simulation was applied to predict the human exposure risk of phthalates. HI of DiBP, DBP, and DEHP was predicted according to the reference doses (RfD) provided by the United States Environmental Protection Agency (U.S.EPA) and the reference doses for anti-androgenicity (RfD AA) developed by Kortenkamp and Faust. The results indicated that the risks of some students had exceeded the limitation, however, the measured results were not exceeded the limitation. Risk quotients (RQ) of DEHP were predicted based on China specific No Significant Risk Level (NSRL) and Maximum Allowable Dose Level (MADL). The predicted results of CR and RQ of DEHP suggested that DEHP could pose a health risk through intake of indoor dust.
Display omitted
•Phthalates in dormitory dust from three northern Chinese cities were studied.•Phthalate levels in dormitory dust were lower than those in house dust.•Predicted hazard index of DiBP, DBP, and DEHP partly exceeded tolerable limits.•Risk quotients of DEHP based on China specific NSRL and MADL were conducted.•DEHP levels in dust can pose risk to human health.
•The subjective responses of migrants and locals to district heating environments were compared.•Thermal neutral temperature and sensitivity of migrants and locals were discussed.•The adaptive ...process of migrants to district heating environments was clarified.•The advice for creating comfortable built environments of migrants was proposed.
Preference for thermal environments is affected by the thermal histories on their own. A deeper understanding of human thermal adaptation to create comfortable and energy-saving environments is desired. To study the differences in thermal responses of southern migrants and northern locals to district heating environments, a longitudinally traced investigation was performed in the severe cold area, China. 74 freshmen with different thermal histories were invited for six weeks in winter. Physiological parameters and thermal response votes were collected. Results showed that the most significant difference in the thermal neutral temperature between locals and migrants reaches up to 1.1 °C, after acclimation, which decreases to 0.7 °C. Also, southern immigrants are not as sensitive to temperature changes as locals, but the gap is narrowing. Moreover, immigrants tended to wear lighter clothing at the same room temperature compared to natives, who were more flexible in adjusting their clothing. It was also observed that physiological and psychological adaptation processes were not synchronous. The humidity is the leading purpose of physiological discomfort for migrants. Physiological adaptation is a relatively slow process. It concluded that southern immigrants may take approximately 1 week to adapt to the thermal environment with district heating. However, they did not fully adapt to the humid environment until the 6th week. The findings have implications for understanding the mechanisms of thermal adaptation and creating comfortable built environments.
This study investigated the prevalence of medical symptoms, including headache, fatigue, ocular, nasal, throat, and dermal symptoms, among university students and their associations with the indoor ...environment of Sri Lankan dormitories. The study included 2234 students from seven different dormitory buildings. The association between dormitory environmental factors and students' medical symptoms was determined using multi-level logistic regression. General symptoms (22.8%) were reported more frequently than other symptoms. Headaches (11.6%) and fatigue (11.3%) were the most common specific individual symptoms. The most frequent dampness-related problems were visible mold (29.6%) and visible damp stains (28.8%). Significant gender differences were observed. Suspected moisture problems were a major risk factor for ocular (AOR: 2.65), fatigue (AOR: 1.83), and throat symptoms (AOR: 2.49). Damp stains were also associated with an increased risk of fatigue (AOR: 1.52), ocular (AOR: 1.72), throat (AOR: 2.26), and dermal symptoms (AOR: 1.61). The mutual adjustment model revealed that any type of dampness, as well as being on a lower floor level of the building, was a significant risk factor for the occurrence of throat, dermal, general, and mucosal symptoms. Residing in older buildings was a protective factor for ocular and nasal symptoms. Infrequent window opening was associated with increased medical symptoms. The findings suggested that the dormitory environment has an effect on students’ health. Opening windows on a regular basis may improve airflow in dormitories. Future dormitory designs should consider large windows in areas with lower levels of outdoor air pollution, and mechanical ventilation systems should be considered.
•A study on sick building syndrome was conducted in Sri Lankan dormitories.•There was a gender difference in medical symptoms.•30% dorm dampness was significantly associated with medical symptoms.•Lower floor residency increased medical symptoms.•Less frequent window opening was a risk for medical symptoms.
Manajemen Asrama di Pesantren Perawironegoro, Djamaluddin
Tadbir : jjurnal studi manajemen pendidikan (Online),
11/2019, Letnik:
3, Številka:
2
Journal Article
Recenzirano
Odprti dostop
Pesantren as Islamic education institution have two main focuses in organizing their activities programs; first is the aspect of learning, and second is the aspect of Education. In the Learning ...aspect, the Santri gained cognitive knowledge from Kitab Kuning book, whereas the Santri obtained the affective and psychomotor aspects through the boarding education system. Where the Santri lives with his friends, teachers, and Kyai together in the scope of Pondok or dormitory. The purpose of writing this paper is to describe dormitory management with a managerial perspective. The conclusion is that the dormitory management concept, which includes planning, organizing, actuating, and controlling, has been carried out by boarding schools. Optimizing the management functions of the management of the dormitory will assist the board in achieving the main objectives of boarding school.
Display omitted
•A two-step constructed wetland system for sewage treatment and reuse was studied.•Excellent removal efficiencies of TSS (76%), BOD5 (74%), and NH4-N (90%) were achieved.•Hydraulic ...loading significantly affected the removal of NH4-N, TSS, and BOD5.•Optimal HLR of 0.04–0.06 m/d were suitable and practical for water recycling.
This study developed a unique system by combining the novel vertical flow (NVF) using expanded clay (ExC) and free flow surface constructed wetland (FWS) for dormitory sewage purification and reuse. The NVF tank consisted of filter layers of ExC, sandy soil, sand, and gravel. The FWS consisted of sandy soil substrate and was installed after the NVF. Colocasia esculenta and Dracaena sanderiana was planted in NVF and FWS, respectively. The treatment system was operated and tested for more than 21 weeks by increasing the hydraulic loading rate (HLR) from 0.02 m/d to 0.12 m/d. The results demonstrated that effluents in the system changed proportionally to the HLRs, except for nitrate nitrogen. Furthermore, the maximum removal efficiencies for TSS, BOD5, NH4-N, and Tcol were 76 ± 13%, 74 ± 11%, 90 ± 3%, and 59 ± 18% (0.37 ± 0.19 log10MPN/100 mL), respectively. At HLRs of 0.04–0.06 m/d, the treatment system satisfied the limits of agriculture irrigation.
PDF
