The Use of Radioactive Cobalt in Studies of the Dispersal of Adult Females of the European Pine Shoot Moth, Rhyacionia buoliana (Schiff.)

1957 ◽  
Vol 89 (8) ◽  
pp. 379-383 ◽  
Author(s):  
G. W. Green ◽  
C. R. Sullivan ◽  
W. F. Baldwin
Keyword(s):  
Half Life ◽  
Adult Females ◽  
Successful Attempt ◽  
Large Numbers ◽  
Effects Of Radiation ◽  
Harmful Effects ◽  
Gamma Emitter

This paper describes a successful attempt to tag adult females of the European pine shoot, Rhyacionia buoliuna (Schiff.) with Co60, chosen as a tagging agent because it is a gamma emitter with a sufficiently long half-life (5.3 years). Emphasis is placed on the preparation and application of the tracer material, the absence of immediately harmful effects of radiation on the insects, and the ability of the insects to behave normally with the tags in place. This work was undertaken in order so develop techniques for following the movements of large numbers of these insects.

Radiation Safety in Vascular Surgery

2015 ◽  
Author(s):  
Amy B. Reed ◽  
Melissa L Kirkwood
Keyword(s):  
Radiation Dose ◽  
Endovascular Procedures ◽  
Radiation Safety ◽  
National Council ◽  
Skin Injury ◽  
Air Kerma ◽  
Dose Limits ◽  
Radiation Induced ◽  
Effects Of Radiation ◽  
Harmful Effects

Modern vascular surgeons perform an ever-increasing number of complex endovascular procedures, largely based on patient preference, decreased length of stay, and improved outcome. With the upsurge of endovascular cases, concern has grown regarding the harmful effects of radiation exposure delivered to the patient and the operator. Surgeon education on the appropriate use of fluoroscopic operating factors coupled with appropriate training in radiation safety has been shown to decrease radiation dose. This review elucidates dose terminology and metrics, possible radiation-induced injuries, risk factors for deterministic injury, and radiation safety principles and techniques. Tables provide practical tips to lower patient and operator radiation dose during fluoroscopically guided intervention, and National Council on Radiation Protection & Measurements recommended dose limits for occupational exposure. Figures illustrate reference air kerma, radiation-induced skin injury, effects of image receptor and table position, and operator exposure. This review contains 4 figures, 3 tables, and 53 references.

scholarly journals Radio-protective role of antioxidant agents

2012 ◽  
pp. e16
Author(s):  
Alireza Shirazi ◽  
Ehsan Mihandoost ◽  
Seied Rabie Mahdavi ◽  
Mehran Mohseni
Keyword(s):  
Therapeutic Index ◽  
Past Research ◽  
Protective Role ◽  
Herbal Products ◽  
Antioxidant Agents ◽  
Effects Of Radiation ◽  
Cellular Components ◽  
Harmful Effects ◽  
Research Show

Ionizing radiation interacts with biological systems to produce reactive oxygen species and reactive nitrogen species which attack various cellular components. Radio-protectors act as prophylactic agents to shield healthy cells and tissues from the harmful effects of radiation. Past research on synthetic radio-protectors has brought little success, primarily due to the various toxicity-related problems. Results of experimental research show that antioxidant nutrients, such as vitamin E and herbal products and melatonin, are protective against the damaging effects of radiation, with less toxicity and side effects. Therefore, we propose that in the future, antioxidant radio-protective agents may improve the therapeutic index in radiation oncology treatments.

Radiation risk amongst orthopaedic surgeons – Do we know the risk?

2018 ◽  
Vol 29 (5) ◽  
pp. 115-121 ◽  
Author(s):  
Sushmith R Gowda ◽  
Chris J Mitchell ◽  
Sherif Abouel-Enin ◽  
Charlotte Lewis
Keyword(s):  
Radiation Exposure ◽  
Operating Room ◽  
Radiation Risk ◽  
Healthcare Personnel ◽  
Orthopaedic Surgeons ◽  
Increased Risk ◽  
Medullary Nailing ◽  
Specific Safety ◽  
Effects Of Radiation ◽  
Harmful Effects

Radiation risk amongst orthopaedic surgeons and theatre personnel is increasing with increased use of fluoroscopy imaging. Increased radiation risk has been shown to be associated with an increased risk of malignancies, ocular and thyroid disorders. Very high exposures have been reported in spinal surgery and during intra-medullary nailing. With an increase in modern and percutaneous methods, the use of intra-operative fluoroscopy has increased as well. The aim of this article was to review the available evidence of radiation risk amongst healthcare personnel. A systematic search was carried out in PubMED, CINAHL and Cochrane on intra-operative radiation in trauma and orthopaedic operating room. Inclusion criteria were clinical studies and systematic reviews reporting on radiation exposure, fluoroscopy time and references to specific safety guidelines. This article highlights the safety aspects of radiation protection and harmful effects of radiation during orthopaedic procedures. The responsibility to minimise radiation exposure in operating theatre lies with the team within the operating room.

Diagnostic radiography: what are the risks?

1980 ◽  
Vol 18 (13) ◽  
pp. 49-51
Keyword(s):  
Hereditary Disease ◽  
X Rays ◽  
Direct Benefit ◽  
Adequate Knowledge ◽  
Increased Risk ◽  
Realistic Assessment ◽  
Effects Of Radiation ◽  
The Individual ◽  
Harmful Effects ◽  
Diagnostic Radiography

X-rays at the doses used in diagnostic radiography are associated with two main hazards: an increased risk of neoplasia in the individual exposed, and an increased risk of hereditary disease in his or her progeny. The risk of carcinogenesis can be balanced against the benefit to the patient exposed, but the risk to progeny cannot be balanced in this way as they receive no direct benefit other than the possible continued health of the parent. The decision to x-ray must be based on adequate knowledge of such harmful effects of radiation and on the realistic assessment of the benefits.

scholarly journals Can Melatonin Help Us in Radiation Oncology Treatments?

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Ehsan Mihandoost ◽  
Alireza Shirazi ◽  
Seied Rabie Mahdavi ◽  
Akbar Aliasgharzadeh
Keyword(s):  
Radiation Oncology ◽  
Antioxidant Property ◽  
Free Radical Scavenger ◽  
Tumor Control ◽  
Radical Scavenger ◽  
Normal Cells ◽  
Effects Of Radiation ◽  
Cellular Components ◽  
Higher Doses ◽  
Harmful Effects

Nowadays, radiotherapy has become an integral part of the treatment regimen in various malignancies for curative or palliative purposes. Ionizing radiation interacts with biological systems to produce free radicals, which attack various cellular components. Radioprotectors act as prophylactic agents that are administered to shield normal cells and tissues from the harmful effects of radiation. Melatonin has been shown to be both a direct free radical scavenger and an indirect antioxidant by stimulating antioxidant enzymes and suppressing prooxidative enzymes activity. In addition to its antioxidant property, there have also been reports implicating antiapoptotic function for melatonin in normal cells. Furthermore, through its antitumor and radiosensitizing properties, treatment with melatonin may prevent tumor progression. Therefore, addition of melatonin to radiation therapy could lower the damage inflicted to the normal tissue, leading to a more efficient tumor control by use of higher doses of irradiation during radiotherapy. Thus, it seems that, in the future, melatonin may improve the therapeutic gain in radiation oncology treatments.

scholarly journals A Compact Model to Evaluate the Effects of High Level C++ Code Hardening in Radiation Environments

Electronics ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 653 ◽  
Author(s):  
Leonardo Maria Reyneri ◽  
Alejandro Serrano-Cases ◽  
Yolanda Morilla ◽  
Sergio Cuenca-Asensi ◽  
Antonio Martínez-Álvarez
Keyword(s):  
Empirical Model ◽  
Radiation Hardening ◽  
Compact Model ◽  
System Behavior ◽  
Trade Offs ◽  
Protons And Neutrons ◽  
Radiation Induced ◽  
Effects Of Radiation ◽  
High Level ◽  
Harmful Effects

A high-level C++ hardening library is designed for the protection of critical software against the harmful effects of radiation environments that can damage systems. A mathematical and empirical model to predict system behavior in the presence of radiation induced faults is also presented. This model generates a quick evaluation and adjustment of several reliability vs. performance trade-offs, to optimize radiation hardening based on the proposed C++ hardening library. Several simulations and irradiation campaigns with protons and neutrons are used to build the model and to tune it. Finally, the effects of our hardening approach are compared with other hardened and non-hardened approaches.

scholarly journals Attendance of Patients with ophthalmological problems about Eye Protection from UV/blue Light Radiation from Sun light and Electronic Devices in Sulaimani City

2018 ◽  
pp. 117-122
Author(s):  
Salah Qadir Mahmood ◽  
Muhammad Babakir-Mina ◽  
Salar Ibrahim Ali ◽  
Abdulrahman M. Ibrahem ◽  
Bakhtyar Kamal Talabany
Keyword(s):  
Blue Light ◽  
Electronic Devices ◽  
Light Sensitivity ◽  
Cross Sectional ◽  
Protection Measures ◽  
Significant Difference ◽  
Effects Of Radiation ◽  
Human Eyes ◽  
Harmful Effects ◽  
Sun Light

Ultraviolet (UV) and blue light are affecting eyes during the daily time and may cause many eye’s problems and diseases. Therefore, this study aimed to explore the awareness of patients with ophthalmological problems on UV/blue light protection measures and to evaluate their knowledge and protection measures about radiation that emits from sun light and other electronic devices. It comprised a cross-sectional survey on a representative target population with eye diseases who visited the Shahid Aso Eye Hospital at Sulaimani city (sample size = 500). A special designed cross-sectional questionnaire was performed on a random sampling for data collection from 9th September 2017 to 1st January 2018. The statistical analysis was performed using SPSS version 22.0. There was an even distribution between male and female participants across the groups. The highest percentage of patients with light sensitivity was (79.6%) and the lowest percentage with eye injury was (7.8%). Most of participants had knowledge about the effects of UV/blue light on eye diseases by (52%), cataract (57.8%), glaucoma and red eye with percentage of (45.8%) and (43.4%) respectively. There was a significant difference for the males who were more game-player and using electronic devices like smartphone/tablet /iPad than females. There was a significant difference between male and female participants about the knowledge on harmful effects of radiation from electronic devices. Furthermore, only the patients with sun light sensitivity and cataract had a significant knowledge about harmful effects of radiation from electronic devices on human eyes. Finally, most of the patients with dry eyes, eye/lid infection and glaucoma and cataract had significantly more practices for taking visual breaks when using electronic devices. This study concluded that the patients with ophthalmological problems show a low level of knowledge and protection measurements on the harmful effects of UV/blue light on human eyes and radiation protection. Additionally, this study has discovered that sun protection measures are commonly inadequate among the participants and on a regular basis only a small portion of participants were used the sun protection requirements.

scholarly journals Coccomorpha: Coccidae), a potentially damaging scale insect in Poland

2020 ◽  
Vol 89 (4 - Ahead of print) ◽  
pp. 200-206
Author(s):  
Łagowska Bożena
Keyword(s):  
Life Cycle ◽  
Urban Areas ◽  
Scale Insect ◽  
Diagnostic Information ◽  
Natural Habitats ◽  
Soft Scale ◽  
Adult Females ◽  
Large Numbers ◽  
Potential Pest ◽  
Forest Plants

Abstract: A soft scale, Pulvinaria hydrangeae Steinweden, 1946 has been observed in large numbers on various host species in urban areas and natural habitats in Central Poland, and may be noteworthy as a potential pest of commercial and forest plants. Basic diagnostic information on this scale, as well as information on its life cycle, host range and distribution are provided. Pulvinaria hydrangeae resembles the cosmopolitan P. floccifera (Westwood, 1870), and the main characteristics that distinguish these two species from each other are discussed. A key to adult females of the Pulvinaria species found outdoors in Poland is also included.

scholarly journals Radioprotection by curcumin: A mini review

2021 ◽  
pp. 24-33
Author(s):  
P Sruthi ◽  
M M Naidu
Keyword(s):  
Clinical Trials ◽  
Normal Cell ◽  
The Body ◽  
Radiation Doses ◽  
Surrounding Area ◽  
Normal Cells ◽  
Effects Of Radiation ◽  
Almost All ◽  
Ionizing Radiations ◽  
Harmful Effects

Ionizing radiations are detrimental to the biological system. Exposure to ionizing radiations results in many chronic diseases including cancer. It may cause dysfunctions to almost all organs of the body depending on the total dose, duration and site of irradiation. Apart from its bad effect, radiotherapy is now extensively used for the treatment of several kinds of cancers. Still, the key disadvantage in the procedure is that normal cell, in the surrounding area of the tumor, also receiving radiation doses similar to the tumor, leads to undesirable side effects and risk to patients. Curcumin has been found to protect harmful effects of ionizing radiation. So, it can be beneficial during radiotherapy of cancer. Curcumin helps to kill tumor cells effectively by enhancing the effect of radiation. It also protects normal cells against the harmful effects of radiation. Pre clinical studies are expected to lead to clinical trials to prove the potential of this age-old golden spice for treating cancer patients. This review summarizes the protective effect of curcumin against harmful radiations.

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