Many animals respond to the threat of predation by producing alarm signals that warn other individuals of the presence of danger or otherwise reduce the success of predators. While alarm signals may be visual or auditory as well as chemical, alarm pheromones are common, especially among insects and aquatic organisms. Plants too emit chemical signals in response to attack by insect herbivores th...

Abstract This paper deals with the research of a new silicate-based repair mortar modified selected secondary raw materials. The aim this work is to develop chemically resistant material suitable for use in an extremely aggressive environment sewers. monitored parameters include key physical-mechanical characteristics, resistance sulphate ions and attack biogenic sulfuric acid. Chemical was tes...

Environmental chemical exposure has been linked to numerous diseases in humans. These diseases include cancers; neurological and neurodegenerative diseases; metabolic disorders including type 2 diabetes, metabolic syndrome and obesity; reproductive and developmental disorders; and endocrine disorders. Many studies have associated the link between exposures to environmental chemicals and cardiov...

“The hormones [ACTH and cortisone] represent an entirely new approach in the art of healing. Penicillin, streptomycin, the sulfa drugs, and most other medicines you’ve been reading about are poisons intended specifically to attack invading germs. (...) But ACTH and cortisone are not germ-killers. They are natural products, gland hormones. They influence the body’s built-in chemical factories th...

Olive scale (Parlatoria oleae (Colvée)) is a common pest in Mediterranean olive orchards which primarily causes damage on olive fruits. The quality of virgin olive oil is strongly related to the health status of the olive fruits from which is extracted. In this paper the effects of olive scale (Parlatoria oleae (Colvée)) attack on the oil yield, chemical and sensorial quality, as well as on the...

The reaction of 2-amino-3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophene with ethyl cyanoacetate gave 2-cyano-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-acetamide. The latter was used to synthesize different heterocyclic derivatives comprising thiophene, thiazole, pyrazole, pyridine, pyrimidine, and coumarin rings. The mechanistic and synthetic pathways depended on regioselective attack and...

Plants counteract attack by herbivorous insects using a variety of inducible defence mechanisms. The production of toxic proteins and metabolites that instantly affect the herbivore's development are examples of direct induced defence. In addition, plants may release mixtures of volatile organic compounds (VOCs) that indirectly protect the plant by attracting natural enemies of the herbivore. R...

IntroductionChildren with severe asthma attack are a challenging group of patients who could be difficult to treat and leading to significant morbidity and mortality. Asthma attack severity is qualitatively estimated as mild, moderate and severe attacks and respiratory failure based on conditions such as respiration status, feeling of dyspnea, and the degree of unconsciousness. part of which ar...

The bio-defense technology described in this paper is based on a novel, very high intensity, pulsed Advanced UV Source (AUVS) that very rapidly and effectively destroys biological agents. The technology can be used to protect buildings against biological weapon (BW) attack and / or create safe zones within buildings. The technology can also be used to destroy some chemicals, and with additional...