Bücher von Mohamed Abdel-Raheem

School libraries play an active and leading role in the educational process, where it helps pupils¿ continue education effectively so they can learn by themselves. School libraries bear the slogan "Learn how to teach you and search for information.Since school libraries identify within educational institutions, it means that there should be a form of coordination between libraries and all the other elements within the educational institutions such as teachers, pupils, the curricula, and the programs. This format was planned in an interactive manner so that it functions efficiently and effectively.

Phlebotomine sand flies are major biting pests of man and are the vectors of several viruses, the bacterium Bartonella bacilliformis and most importantly the protozoan parasites that cause leishmaniasis. Worldwide, there are an estimated 2 million new cases of leishmaniasis annually, and 12 million people are currently believed to be infected (WHO 2006). Throughout North Africa, the Middle East and Southwest Asia, Phlebotomus papatasi is the primary vector of Leishmania major, the causative agent of zoonotic cutaneous leishmaniasis (ZCL). While larvicides are commonly used to control mosquitoes and many other flies of medical and veterinary importance, there is no current use of larvicides for phlebotomine sand fly control. In arid and semi-arid foci, P. papatasi exhibits a close association with several burrowing rodent reservoirs of L. major (Neronov and Gunin 1971). In ZCL foci in the Old World, rodent burrows are considered to be the primary immature habitats for P. papatasi, but introducing an insecticide into the burrows is generally precluded by the length and complexity of the tunnels which comprise the burrows (Seyedi-Rashti and Nadim 1973, Karapet¿ian et al.1983.

Bt makes toxins that target insect larvae when eaten. In their gut, the toxins are activated. The activated toxin breaks down their gut, and the insects die of infection and starvation. Death can occur within a few hours or weeks. The different types of Bt create toxins that can only be activated by the target insect larvae. In contrast, when people eat the same toxins, the toxins are not activated and no harm occurs.Each type of Bt toxin is highly specific to the target insect. For example, the ¿kurstaki¿ type targets caterpillars. The ¿isrealensis¿ type targets immature flies and mosquitoes. Little to no direct toxicity to non-target insects has been observed.People are most commonly exposed to Bt through their diet, at very low levels.Exposure can also occur if you breathe it in or get it on your skin or eyes. For example, this can occur while applying sprays or dusts during windy conditions. You may also be exposed after using a product if you don¿t wash your hands before eating or smoking. Since Bt is commonly found in soils, exposures not related to pesticides are also possible.

The COVID-19 pandemic is an unprecedented and growing global crisis with devastating health, economic and social impact in every country. It is plunging the world economy into a recession of historic dimensions. Many, if not most businesses, face the challenges of massive shifts in demand, supply chains, transportation and mobility and worker protection ¿ to name just some of the major topics before you. Workers too are facing shocks ¿ and so are consumers. The fear of becoming infected. The prospect of losing livelihoods. These and other severe vulnerabilities are being exacerbated by inadequate social protection coverage, which means that millions of people around the world are unable to access adequate medical care, or any social benefits. I understand that business leaders have a wealth of pressing concerns, yet I would like to put workers, and other ordinary people, at the core of your discussions today. The health of every business depends on both workers', and consumers', well-being.

Kiedy by¿e¿ m¿odszy i po raz pierwszy zacz¿¿e¿ mówi¿, by¿ mo¿e sepleni¿e¿, j¿käe¿ si¿ lub miäe¿ trudno¿ci z wymawianiem s¿ów. Mo¿e powiedziano ci, ¿e to by¿o "s¿odkie", lub nie martwi¿ si¿, bo wkrótce wyrosn¿ z niego. Ale je¿li jeste¿ w swoich nastolatków i nadal j¿kanie, mo¿e nie czujesz si¿ jak to jest tak ujmuj¿cy.Nie jeste¿ sam. Wi¿cej ni¿ 3 miliony Amerykanów ma zaburzenia mowy znane jako j¿kanie (lub j¿kanie, jak to jest znane w Wielkiej Brytanii). Jest to jeden z kilku warunków, które mog¿ mie¿ wp¿yw na zdolno¿¿ osoby do wyränego mówienia. J¿kanie jest problemem, który zak¿óca p¿ynn¿ (p¿ynn¿ i ¿atw¿) mow¿. Osoba, która si¿ j¿ka mo¿e powtórzy¿ pierwsz¿ cz¿¿¿ s¿owa (jak w wa-wa-wa-woda) lub utrzymä pojedynczy d¿wi¿k przez d¿ugi czas (jak w caaaaaaake). Niektórzy ludzie, którzy si¿ j¿kaj¿ maj¿ problemy z wydobywaniem d¿wi¿ków w ogóle. J¿kanie jest z¿o¿one, i mo¿e wp¿ywä na mow¿ na wiele ró¿nych sposobów.

Oleaginous insects can degrade various organic wastes to accumulate fat-based biomass, thus serving as a potential feedstock for biodiesel production. Therefore, the use of insects fed on organic waste for biodiesel production has increasingly attracted considerable investigations. In recent years, different insect species have been studied for their efficiency in converting various organic wastes and for producing biodiesel from their fat. Several methods have been developed for biodiesel production from insects to improve yields and reduce production costs and environmental impacts. This review summarizes the latest findings of the use of insects for converting organic wastes into biodiesel. The production processes and fuel properties of biodiesel produced from insects.

The red palm weevil (RPW), Rhynchophorus ferrugineus Olivier is the most pests of various palm species. The RPW causes severe damage to coconuts in Southeast Asia. Recently, research efforts point out the potential of the green synthesis of metal NPs, chiefly Ag NPs, for use against a wide spectrum of noxious pest species either in the laboratory or in the field. For example, Jayaseelan et al. (2011) and Abdel-Raheem, et al., (2019, 2020) on R. ferrugineus reported that Ag NPs synthesized by leaf aqueous extract of Tinospora cordifolia (Thunb.) caused complete mortality of the head louse, P. humanus capitis De Geer adults after 1 h of exposure at 25 mg/l. Ag NPs was negatively influenced the growth (i.e., larval weight and period of development, pupal weight, and adult weight) of both species as a result of the physiological changes in the body of the insects due to the presence of NPs (Yasur and Usha Rani 2015). Ag NPs synthesized by extracellular filtrate of the entomopathogenic fungus Trichoderma harzianum Rifai (Hypocreales: Hypocreaceae) resulted in 92, 96, and 100% mortality of 1st, 2nd, and 3rd¿4th instar larvae or pupae of A. aegypti, respectively.