نتایج جستجو برای: hyrax
تعداد نتایج: 233 فیلتر نتایج به سال:
Competition in group-living animals often results a dominance hierarchy. The sex that is larger (usually the males) generally dominates one smaller (the females). In certain species, however, despite being smaller, females dominate several males. Female over males may here arise from self-reinforcing effects of winning and losing fights, so-called winner-loser effect, as demonstrated model DomW...
The ability of the sand fly Phlebotomus (Adlerius) arabicus to transmit Leishmania tropica was studied experimentally using hyraxes (Procavia capensis), natural reservoir hosts of the parasite. Sand flies became infected with L. tropica after feeding on a lesion of needle-inoculated hyrax. Moreover, P. arabicus fed with L. tropica promastigotes transmitted the parasite to hyraxes by bite during...
Relationships between changes in arch perimeter and arch width resulting from rapid palatal expansion with the Hyrax appliance were analyzed with the use of dental study casts of 21 adolescent patients. Photographs and measurements from the dental casts obtained before treatment and approximately 3 months after stabilization were used. Regression analysis indicated that changes in premolar widt...
The correction of posterior crossbites is more complex than it appears. To develop an appropriate treatment plan, it is first necessary to determine if: (1) there is a functional jaw shift on closing; (2) the crossbite is unilateral or bilateral; (3) it is dental, skeletal, or a combination of both; and (4) it is related only to the maxilla or both jaws. Once the problem's apparent cause has be...
A 19-year-old man presented for correction of a malocclusion that included a transverse maxillary deficiency. The patient was informed that he required orthognathic surgery to expand his upper jaw and correct his malocclusion, but he refused surgical expansion. Recent evidence indicates that rapid palatal expansion can be used without surgery in young adults; the decision was therefore made to ...
Transmission of Leishmania tropica was studied in 2 adjacent foci in Israel where vector populations differ. Only Phlebotomus sergenti was found infected with L. tropica in the southern focus; P. arabicus was the main vector in the northern focus. Rock hyraxes (Procavia capensis) were incriminated as reservoir hosts in both foci. L. tropica strains from the northern focus isolated from sand fli...
Corticotomy is a minor surgical procedure used to facilitate & accelerate tooth movement in certain cases where conventional orthodontics find its limitation. A very few published case reports of corticotomy facilitated orthodontics are present till date to substantiate its scope. Here is case report of a patient who reported to the Department of Orthodontic & Dentofacial Orthopedics after bein...
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