Prosthetic Management of Segmentally Resected Mandible and Partial Glossectomy: A Case Report

The balance and symmetry of mandibular function gets destroyed by the loss of continuity of the mandible, which deviates the residual fragment towards the resected side thereby altering the mandibular movements. Physical therapy in combination with prosthodontic treatment can be used to reduce the mandibular deviation and hence it improves the masticatory efficiency. Many prosthetic methods are discovered to minimize deviation and provide masticatory efficiency. Some of these methods are mandibular guide flange prosthesis, implant supported prosthesis and palatal guidance restoration. Contact of Tongue with palate is important for the production of normal speech, also the proper place of the tongue during certain sounds is important. In partial glossectomy conditions, tongue to palate articulation gets affected during speech and patient faces difficulty to pronounce certain sounds. For the rehabilitation of such patient thorough knowledge of the production of different sounds can be useful for diagnosis and treatment planning.

Initial Results of Laser Ureteroscopy Treatment for Lithiasis of the Upper Urinary Tract at Aristide Le Dantec Hospital in Dakar (Senegal)

Background: In Africa, lithogenesis was initially considered rare and it was mostly caused by infections. Recent studies suggest that obesity, change in dietary habits (milk, dairy products) and hot climate can contribute to an increase of the condition in the region. Over the past decades, the management of upper urinary tract urolithiasis has evolved significantly with minimally invasive techniques. The challenge for sub-Saharan countries is related with the acquisition and the training for minimally invasive treatment. In fact, open surgery has less indications in the management of urolithiasis. The aim of this study is to evaluate the preliminary results of ureteroscopic laser treatment for upper urinary tract lithiasis in our hospital. Methods: This was a prospective, descriptive study realized between June 2016 and December 2018. The patients included were those who had ureteroscopic laser treatment for upper urinary tract lithiasis. The treatment was performed under general anesthesia by two surgeons. The studied parameters were: age, sex, patient medical history, comorbidities, renal function, cytobacteriological examination of urine, characteristics of lithiasis, intra and postoperative complications (using the Clavien–Dindo classification), ureteroscopic laser failures (frequency and causes). Success of treatment was defined by: the absence of a residual fragment at the renal and ureteral level or of a residual fragment <4 mm at the renal level on the control imaging. Data analysis was done with IBM SPSS Statistic 23 software. Statistical significance was considered when P < 0.05. Results: This study involved 43 patients. The mean age was 40.84 years ± 15.33 years. The age group between 30 and 39 years was predominant. The sex ratio was 1.26. Nephritic colic was the circumstance of discovery in 93.02%. The Uro-CT scan performed in all our patients, revealed kidney stones in 16.3% and ureteral stones in 83.7%. The right side was the most involved in 55.8%. The mean size of the stones was 12.2 mm ± 4.89 at the renal level and 12.05 mm ± 5.54 at the ureteral level. The semi-rigid ureteroscope was used in 88.37% and the flexible ureteroscope in 11.63%. The lithiasis was visualized in 74.4% of cases. Laser fragmentation was performed in 69.77% of cases. A J stent was placed after 72.1% of cases. Pelvic ureteral stripping and pelvic ureteral aspiration were realized in one case each. Acute pyelonephritis (ANP) was observed in 25.6% of patients. There were 75% fragment free at postoperative control. Any factors associated with treatment failure were not found.

A rheological study on non-rubber component networks in natural rubber

Proteins can interact with phospholipids in NR, the residual fragment also interact with ω-terminals in DPNR.

The dispersal versus vicariance debate in biogeography

Wild’s 1964 study of the Chimanimani Mountain endemics is taken as an example of a vicariance model: endemics (1) are seen to have originated in situ from a residual fragment of an ancestral, once-continuous flora; (2) are held to present in themselves no history of major dispersal; and consequently a biogeographical intrepretation involving or presupposing their ‘migrations' is not thought to be applicable. The preference Wild expressed for this model over a dispersalist model attributed to Levyns is investigated, making use of theoretical refinements developed in the dispersal vs vicariance debate within the past decade. The differences in intrepretations between Wild and Levyns appear to be unresolvable on account of their positions not being demarcated clearly enough, and the situation has not improved since then, underlining the need for attention to be given to the formulation of applicable, coherent and testable hypotheses in biogeography.

Chemical and biological properties of some oxindolidyl-3-methines

Several 1-methyloxindohdyl-3-methines have been synthesized, either by condensation of 1-methyloxindole with an aldehyde, or by a Wittig reaction of a chloromethylene compound with a 1-methylisatin When examined m the mass spectrometer the expected ion reactions were observed and, in addition, a reaction involving expulsion of the carbonyl group of the oxindole moiety and rearrangement of the residual fragment, to give a 1-methylbenzo[b]azepinium ion was observed. The anions of the oxindolidyluracilmethines 4 and 5, (R = Me, R′ = OH) had an absorption band near 380 mμ but the corresponding neutral molecules absorbed at 325–350 mμ. The 5-nitrofuran derivatives 3 were the only compounds that inhibited the growth of Bacillus subtilis.