Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 4

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

Search:
in the keywords:  Temperature
help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Publication available in full text mode
Content available

Urban-Rural Temperature and Diurnal Temperature Range (DTR) in Delta State, Nigeria

100%
Eyefia O. A., Efe S. I., Atuma I. M.
World News of Natural Sciences
|
2023
|
vol. 50
130-146
EN
The study examined urban-rural temperature and Diurnal Temperature Range (DTR) in Delta State, Nigeria with the aid of the ex-post facto research design. Monthly temperature and DTR data were collected from the 5° × 5° grid point via google earth employing the Cruts 4.06 and Crutem 4-2019-12 grid boxes. One-way analysis of variance (ANOVA), Paired t-test, and Mann-Kendall test were employed to establish the variation and trend in temperature and DTR in urban–rural areas of Delta State. In the same vein, the Tukey HSD Multiple Comparisons were used to determine where the significant variation lies. The study indicates that Delta state has an annual temperature of 26.9 °C and a DTR of 8.4 °C. The results also showed an urban bias of 0.2 °C in temperature and 0.4 °C in DTR in the urban-rural canopies, which confirmed the concept of urban heat islands and their negative impacts on DTR. The study confirmed that that a significant difference exists in annual temperature between urban and rural areas of Delta State. The outcomes of the study indicate that a significant difference exists in annual DTR between the urban and rural areas in Delta State. That the annual mean temperature and DTR between the urban and rural areas differ significantly. Therefore, the study recommends that urban planners adhered to planning regulations and the green roof city approach.
2
Publication available in full text mode
Content available

Effect of Pre-chilling and Storage Temperature on Seed Germination of Solanum macrocarpon L. (African Eggplant)

100%
Ogunrotimi D. G., Kayode J.
|
EN
This study examined the effects of storage temperature and pre-chilling on the germination of the seeds of Solanum macrocarpon – which according to literature has a seed viability of 63.33%. In our study, the seeds were sown in dry Petri dishes and placed in the refrigerator set at 4 °C for 1, 3, 5, 7 and 10 days. Another set of seeds was placed in incubators set at 25, 35 and 45 °C for 40 days before the germination experiment was carried out on a laboratory workbench. Results from the study revealed that while storage temperature had a significant effect on that the germination of seeds of this plant, pre-chilling of seeds and incubator treatments generally reduced seed germination. Thus seed germination in this plant is temperature dependent.
3
Publication available in full text mode
Content available

Verification of heat flux and temperature calculation on the control rod outer surface

86%
Taler J., Cebula A.
Archives of Thermodynamics
|
2011
|
issue 3
4
Publication available in full text mode
Content available

Has the description of the Uhthoff phenomenon complicated rehabilitation in multiple sclerosis?

72%
Opara J., Szwejkowski W., Pidsudko Z.
Medical Rehabilitation
|
2009
|
vol. 13(1)
25-28
EN
Professor Wilhelm Uhthoff described for the first time in 1890 that increased body temperature from physical exertion may lead to transient impairment of vision in patients with multiple sclerosis (MS). In his report entitled: “Untersuchungen über die bei der multiplen Herdsklerose vorkommenden Augenstörungen“ he described within four out of a 100 patients with MS a marked deterioration of visual acuity during physical exercise and exhaustion. This vision, referred to as retrobulbar optic neuritis, was later named after him as “Uhthoff phenomenon”. Until 1983 “the hot bath test” was accepted as a clinical test and used for diagnosing MS, subsequently being replaced by more specific investigations. Now it is known that the Uhthoff phenomenon and the characteristic deterioration of MS symptoms by increased body temperature due to physical exercise may also be observed with triggering factors such as fever, hot meals, weather, menstruation, but also smoking and psychological stress. For a long time it was not clear as to whether the nervous conduction velocity in demyelinated fibres was influenced directly by heat or whether it was due to indirect phenomena. In 2004 Humm et al. stated that Uhthoff phenomena in the motor system are due to varying degrees of conduction block and are associated with prolonged central motor conduction time. Multiple sclerosis (MS) is associated with a variety of symptoms and functional deficits that result in a range of progressive impairments and handicaps. Uhthoff phenomenon has defined the strategy of rehabilitation procedures in MS for more than a 100 years. Heat therapy and physical exercises were restricted because of fear of a flare up of the disease, and aquatic exercises were limited to a water temperature of 30°C. In recent years something has changed though. A few reports on randomised controlled trials of progressive exercise programmes, mainly consisting of resistance training for a few months have been published. The findings from these studies suggest overall disability and mobility improvement with aerobic training. All types of rehabilitation should be tailored to fit a patient’s specific needs. The first report to describe the successful outcome of a comprehensive rehabilitation programme that included aquatic therapy with a pool temperature above 30°C in a MS patient has been published. Based on the Uhthoff phenomenon, therapeutic trials with cooling jackets are being investigated and developed. In this review there is reported the current state concerning the Uhthoff phenomenon and its influence on comprehensive rehabilitation in MS.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.