scholarly journals The Effect of Increased UV-B Radiation on the Terrestrial Ecosystem

Author(s):  
Mehtap Gürsoy

Against rapidly developing industry and increasing population, natural resources on earth are getting destroyed. One of the most important adverse effects on the environment is perhaps the depletion of ozone layer which protects the earth from harmful effects of UV radiation, especially UV-B. The effect of UV-B radiation can vary according to species. At high rates of UV-B radiation, many disorders in DNA, photosynthesis, morphological and physiological structure, and biomass accumulation in plants are observed. In this review, the effects of high UV-B radiation on terrestrial ecosystem are discussed.

Humaniora ◽  
2011 ◽  
Vol 2 (1) ◽  
pp. 704 ◽  
Author(s):  
Dila Hendrassukma

Housing is one of the biggest contributors in polluting the ozone layer and consuming the natural resources in making one. Home interior takes part in the over-produced material used for covering the interior elements, such as floor, wall, ceiling, and furniture. The article conducting is to study the green aspect of building materials to find alternative material to beautify the house that is not harming the earth. The result is options of eco material to be used in the making of greener home interior. It is materials that can be renewed, recycled, and low in embodied energy. Materials used in home interior have impact to the natures. Thus, awareness in choosing the right material to decorate the house is very important. 


1990 ◽  
Vol 28 (16) ◽  
pp. 61-63

Ultraviolet (UV) radiation reaching the earth consists of UVB (wavelengths 290–320 nanometres) and UVA (320–400nm). UVC (100–290nm) is still stopped by the ozone layer. UVB causes sunburn, but both UVB and UVA cause skin cancer and skin ageing. Severe sunburn may be a risk factor for melanoma.1 Numerous sunscreens are used to prevent sunburn or to protect patients with photodermatoses; which ones should be recommended?


Author(s):  
Santhra Krishnan P ◽  
ASHRITHA SALIAN ◽  
Saikat Dutta ◽  
Saumen Mandal

Alongside the innumerable benefits of solar rays, the adverse effects of ultraviolet (UV) radiation must be considered. All organisms are subjected to the deleterious effects of UV radiation, particularly UVA...


Author(s):  
J. Hanker ◽  
B. Giammara ◽  
G. Strauss

Only a fraction of the UV radiation emitted by the sun reaches the earth; most of the UVB (290-320nm) is eliminated by stratospheric ozone. There is increasing concern, however, that man-made chemicals are damaging this ozone layer. Although the effects of UV on DNA or as a carcinogen are widely known, preleukemia and acute myeloid leukemia (AML) have only rarely been reported in psoriasis patients treated with 8-methoxypsoralen and UV (PUVA). It was therefore of interest to study the effects of UV on the myeloperoxidase (MP) activity of human neutrophils. The peroxidase activity of enriched leukocyte preparations on coverslips was shown cytochemically with a diaminobenzidine medium and cupric nitrate intensification.Control samples (Figs. 1,4,5) of human bloods that were not specifically exposed to UV radiation or light except during routine handling were compared with samples which had been exposed in one of several different ways. One preparation (Fig. 2) was from a psoriasis patient who had received whole-body UVB phototherapy repeatedly.


2015 ◽  
Vol 3 (2) ◽  
pp. 262-265
Author(s):  
Dr.Navdeep Kaur

Since its evolution environment has remained both a matter of awe and concern to man. The frontier attitude of the industrialized society towards nature has not only endangered the survival of all other life forms but also threatened the very existence of human life. The realization of such potential danger has necessitated the dissemination of knowledge and skill vis-a-vis environment protection at all stages of learning. Therefore, learners of all stages of learning need to be sensitized with a missionary zeal. This may ensure transformation of students into committed citizens for averting global environment crisis. The advancement of science and technology made the life more and more relaxed and man also became more and more ambitious. With such development, human dependence on environment increased. He consumed more resources and the effect of his activities on the environment became more and more detectable. Environment covers all the things present around the living beings and above the land, on the surface of the earth and under the earth. Environment indicates, in total, all of peripheral forces, pressures and circumstances, which affect the life, nature, behaviour, growth, development and maturation of living beings. Irrational exploitation (not utilization) of natural resources for our greed (not need) has endangered our survival, and incurred incalculable harm. Environmental Education is a science, a well-thought, permanent, lasting and integrated process of equipping learning experiences for getting awareness, knowledge, understanding, skills, values, technical expertise and involvement of learners with desirable attitudinal changes about their relationship with their natural and biophysical environment. Environmental Education is an organized effort to educate the masses about environment, its functions, need, importance, and especially how human beings can manage their behaviour in order to live in a sustainable manner.  The term 'environmental awareness' refers to creating general awareness of environmental issues, their causes by bringing about changes in perception, attitude, values and necessary skills to solve environment related problems. Moreover, it is the first step leading to the formation of responsible environmental behaviour (Stern, 2000). With the ever increasing development by modern man, large scale degradation of natural resources have been occurred, the public has to be educated about the fact that if we are degrading our environment we are actually harming ourselves. To encourage meaningful public participation and environment, it is necessary to create awareness about environment pollution and related adverse effects. This is the crucial time that environmental awareness and environmental sensitivity should be cultivated among the masses particularly among youths. For the awareness of society it is essential to work at a gross root level. So the whole society can work to save the environment.


2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Elsa Karino

Production is an activity to convert inputs into outputs through the transformation process. Input in the form of man, money, method, material, machine. While the output is in the form of goods or services. The purpose of production in general is to meet individual needs. There are several factors that influence production namely land and all economic potential that is processed and cannot be separated from the production process, labor is directly related to the demands of property rights through production, and capital, management and technology. In production there are various types of production, namely production which is intermittent and continuous. The production, if viewed from an Islamic perspective, it must fulfill the following principles. First, produce in a halal circle. Second, managing natural resources in production is interpreted as the process of creating wealth by utilizing natural resources must rely on the vision of the creation of this nature and along with the vision of human creation, namely as a blessing for all nature. Third, the Caliph on the earth is not only based on the activity of producing the usefulness of an item but work is done with the motive of benefiting to seek the pleasure of Allah SWT. Key Words: Production, Red Sugar, benefiting


Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 670
Author(s):  
Katalin Magyar-Tábori ◽  
Nóra Mendler-Drienyovszki ◽  
Alexandra Hanász ◽  
László Zsombik ◽  
Judit Dobránszki

In general, in vitro virus elimination is based on the culture of isolated meristem, and in addition thermotherapy, chemotherapy, electrotherapy, and cryotherapy can also be applied. During these processes, plantlets suffer several stresses, which can result in low rate of survival, inhibited growth, incomplete development, or abnormal morphology. Even though the in vitro cultures survive the treatment, further development can be inhibited; thus, regeneration capacity of treated in vitro shoots or explants play also an important role in successful virus elimination. Sensitivity of genotypes to treatments is very different, and the rate of destruction largely depends on the physiological condition of plants as well. Exposure time of treatments affects the rate of damage in almost every therapy. Other factors such as temperature, illumination (thermotherapy), type and concentration of applied chemicals (chemo- and cryotherapy), and electric current intensity (electrotherapy) also may have a great impact on the rate of damage. However, there are several ways to decrease the harmful effect of treatments. This review summarizes the harmful effects of virus elimination treatments applied on tissue cultures reported in the literature. The aim of this review is to expound the solutions that can be used to mitigate phytotoxic and other adverse effects in practice.


2015 ◽  
Vol 1 ◽  
pp. 21-26 ◽  
Author(s):  
Pramila Bakhati

Human beings are considered as the most intellectual living beings in this Universe because they are able to cope with all the natural resources for their personal needs and preserving the things as well. Due to the growing population and immense using of resources, the things which we get from the nature are being destroyed by using in improper way. Our common home: the Earth is now in crisis as a result of limited awareness, egotism and understanding about the real values of nature and natural resources. In this problematic situation, Sustainable Development (SD) is emerged as a window of hope and later Education for Sustainable Developed (ESD) is appeared to promote the SD. However, if the knowledge is not transformed into behavior and practical life, the knowledge will be nothing or the meaningless.DOI: http://dx.doi.org/10.3126/jtd.v1i0.13086 Journal of Training and Development Vol.1 2015: 21-26


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