This study employs molecular dynamics simulations to examine the physisorption behavior of hydrocarbon molecules on a covalent graphene-nanotube hybrid nanostructure. The results indicate that the adsorbed molecules undergo self-diffusion into the nanotubes without the need for external driving forces, primarily driven by significant variations in binding energy throughout different regions. Notably, these molecules remain securely trapped within the tubes even at room temperature, thanks to a "gate" effect observed at the neck region, despite the presence of a concentration gradient that would typically hinder such trapping. This mechanism of passive mass transport and retention holds implications for the storage and separation of gas molecules.

This cross-sectional descriptive survey study aimed to describe the health profile of hospitalized older persons in a tertiary hospital, Nanning, Guanxi, China. Purposive sampling technique was used to recruit 189 older people in the study. Data were collected by using questionnaire and standard assessment tools. Descriptive statistics were used for data analysis. Results: (1) Demographic characteristics: Of the 189 older persons, 56.6% were males, 41.3% aged 70-79 years; 71.4%were married; 82.5% had the average length of stay of 14.9 days; and 66.1% had health insurance. (2) Physical health and illness: Of 50.3% of older persons perceived their health as fair; 60.3% perceived their health as better than others of the same age. Older persons had an average of 4.6 diagnoses and took 6.2 prescribed medicines per day. Of 65.4% older persons had hypertension. One or two acute symptoms within the past two weeks were reported in 79.9% of older persons. The most common acute symptom was vertigo/syncope (41.3%). Within the past six months, 54.6% had 3 to 5 chronic conditions; and 48.6% had 1 or 2 common geriatric problems. The most common geriatric problem reported was sleep disturbance (61.9%). (3) Physical function: Based on Barthel ADL Index, 59.3% were more or less dependent on activities of daily living; (4) Psychological function: The scores of GDS-SF indicated that 37.0% were depressed. Among them, 32.8% had mild depression; 4.2% had moderate to severe depression. The MMSE scores indicated that 27.6% of older persons had dementia. (5) Social function: Most of older persons lived with their spouses (41.8%) who had a mean age of 71.7 years; 13.8% lived alone; and 49.7% had no caregiver during hospitalization. The main source of financial support of older persons was retirement pension (75.7%). This study provides base line information which is beneficial for planning holistic health care and aged care services to meet the demands of hospitalized older persons.

This cross-sectional descriptive study aimed to describe health profile of older people living in an elderly residential apartment in capital city NanNing, GuangXi Autonomous Region, P. R. China. A census population of 351 older people was used to achieve minimum data set of the health profile of older people living in an elderly residential apartment. Data were collected using questionnaires and standard assessment tools. Data was analyzed by descriptive statistics using the software of Statistical Package for Social Sciences (SPSS). Results: 1) Demographic characteristics: Of 351 older people, majority of them were female (63.8%), aged 70-79 yrs. (44.4%), and were widow (72.1%). Approximately 51.9% of older people had education at high school level; 2) Physical health: Of 351 older people, only 281 elders could answer the interviews verbally. Results showed that 39.6% of elders perceived their general health status as fair. Of 351 older people, 74.4% had history of hospitalization and 24.2% had operation. The symptoms reported were: pain (20.8%), mood change (12.3%), fatigue and weakness (10.3%), and vertigo (10.0%). The diseases found were: hypertension (54.1%), stroke (29.6%), and dementia (24.5%). Geriatric problems found were: mobility problem (34.8%), urinary incontinence (24.8%), memory loss (23.9%), fecal incontinence (23.4%), and visual problem (20.8%). Among eight health behaviors, only 5.4% of older people attended social activities, 6.6% had physical check up, and 21.7% had exercise, regularly; 3) Physical function: Of 351 older people, 36.5% were mild-ADL dependent, and 34.2% were severe-ADL dependent. The most affected IADL among 166 (47.3%) older people were: money management (16.8%), meal preparation (14.2%), laundry (13.7%), and so on; 4) Psychological function: Of 178 (50.7%) older people, 61 (17.4%) were identified as dementia. Of 171 (48.7%) older people, 15.1% had mild depression, and 4.8% had severe depression. This survey provided base line data on the health profile of institutionalized older people. There is the need to conduct cohort study of health profile of older people in order to monitor health and well-being of older people in long term care settings.