A soft rumen cannula for sheep was made with two kinds of silicone rubber and a polyethylene plug. The design of molds is simple and the materials can easily be obtained. The elasticity of the cylindrical part of the cannula controlled leakage of rumen contents to a minimum, and the ...

The use of scalp hair to monitor manganese was studied as part of an investigation of manganese intoxication amongst a group of Aborigines living on manganese-rich soil on Groote Eylandt, in the Northern Territory of Australia. High scalp-hair manganese values were due largely to manganese from exogenous sources. Manganese (IV) ...

The choice of suture materials should be based on sound scientific knowledge. This concluding section of a two-part article discusses the use of nonabsorbable sutures and suture needles, and examines issues related to suture materials, such as suture diameter (gauge), tissue reactivity, knot and knot security, workability, and tensile strength.

The second part of this article shows how the problems of atrophy and resorption of the residual ridge can be corrected with hydroxylapatite to obtain ideal ridge form and maximal prosthetic rehabilitation. The high degree of efficiency of the system is based on a thorough knowledge of the anatomic structures ...

The great upsurge in popularity of running activities has increased the number of athletes presenting with pathology of the Achilles tendon. A clinical and ultrasonic study was performed on 47 middle and long distance runners referred to the Authors with such problems. The results of this study can be grouped ...

A funnel-shaped shield of 1 to 2 cm diameter at the mouth of a needle cap is shown to be effective at decreasing the number of accidental misses occurring in a recapping trial. An argument is made for recapping needles and incorporating new needle cap designs in a revision of ...

This article is divided into three parts: "Faculty Preparation: Immersion in the Literature," "Conceptualizing and Organizing the Course," and "Course Design." The first part is addressed particularly to readers without access to a computer search of the literature. It suggests resource materials for each of the technologies. It also speaks ...

The paper continues a review of clinical conditions and dilemmas which featured in Asylum practice during the years 1850-1950 in Britain. The rise and fall of 'Physiognomy' as a diagnostic aid and as an indicator of quality of asylum care is outlined. The problem of incontinence and the use of ...

High-resolution real-time scanning such as described in this article remains limited to the very superficial areas of the body. This article has been designed to give the reader an up-to-date glimpse of the minute world of small parts scanning and aid the clinician in the optimal use of this noninvasive ...

Two new germacranolides 8alpha-tiglylalbicolide, 4, and juricanolide, 5, as well as the known albicolide, 1, junneolide, 2, and pectorolide, 3, and the coumarin scopoletin, were found in the leaves overground part of J. ALBICAULIS L. collected from the South Bulgarian Black-Sea costal sands.

Rubber cervical caps (Lambert-Dalston), used for periods of time ranging from 1 month to 3 years, were collected and assessed for deterioration and contamination as part of a product safety and efficacy study. Examination at magnification of 10 to 30 times as well as evaluation of surface damage and bulk ...

The birth of twins was believed by the earlier Yoruba communities to be an omen. Drastic measures were adopted in the form of infanticide, or, sometimes, banishment of the twins with their mothers. The ritual killings were gradually replaced by acceptance and reverence of the twins, and thus evolved the ...

Class II, Division 2 malocclusions often have skeletal patterns more nearly approaching Class I than Class II, Division I. Incisor relationships are unique. Treatment problems related to this malocclusion require that the clinician pay particular attention to the vertical dimension. Also, the prevalence of mandibular movement pattern irregularities, coupled with ...

Artificial insemination techniques form an important part of the spectrum of modern infertility treatment, and together account for nearly half (43.8 per cent) of the treatment-related pregnancies in our comprehensive infertility clinic. Disorders of sperm-mucus invasion and survival are not uncommon but have been very frequently overlooked in the past. ...

In this paper the third brain ventricle (ventriculus tertius) of rat was studied on the frontal histological slices. Based on the change in the ventricle form and on the peculiarities of the surrounding nerve structures the third ventricle was divided into the upper and lower part and every part was ...

The quality of life concerns the well-being of man and his environment. The disciplines that are an essential part of the professional activities of the forensic scientist ideally suit him to address and to find solutions for the many serious and contradictory problems facing man and his ever more complicated ...

A cosmetic rhinoplasty must correct the intrinsic deformities of the nose and leave the facial features balanced and in harmony. Some caucasian noses which create difficult problems for conventional rhinoplasties can be readily dealt with by introducing additional support into part or all of the nose (or at the most, ...

Although a sizable body of knowledge is prerequisite to expert skill, that knowledge must be indexed by large numbers of patterns that, on recognition, guide the expert in a fraction of a second to relevant parts of the knowledge store. The knowledge forms complex schemata that can guide a problem's ...

This paper gives a brief description of the telecommunications problems encountered when accessing medical data-bases. In the first part of the article, the authors described how the creation of a special telecommunications working group at IMA (the French MEDLINE Centre) helped to handle and solve these problems. The second part ...

Successful odor identification depends on (i) commonly encountered substances, (ii) a long-standing connection between an odor and its name, and (iii) aid in recalling the name. The absence of any one ingredient impairs performance dramatically, but the presence of all three permits ready identification of scores of substances, with performance ...

The posterior scalping flap is described. Hopefully, it brings another alternate method of facial reconstruction and obviates some of the problems previously existing. It is capable of resurfacing any part or the whole of the hemiface or forehead. It offers an excellent method for facila resurfacing. Further refinements and sophistications ...

Freshly harvested high-moisture corn with 29.4% moisture and corn remoistened to 19.6% moisture were inoculated with Aspergillus flavus Link ex Fr. and stored for 4 weeks at about 27 C in air (0.03% CO2, 21% O2, and 78% N2) and three modified atmospheres: (i) 99.7% N2 and 0.3% O2; (ii) ...

The distribution of G1m(f, z, a, and x), G3m(b0, b1, b3, c3, c5, g, s, and t) and Km(1) (formerly Inv[1]) allotypic markers have been examined in 184 Hungarians. The results indicate that the frequency of the immunoglobulin haplotypes Gmza;g, Gmzax;g, Gmf;b and Km1 is similar to the frequencies observed ...

Scotland and Ireland have the highest death rates from multiple sclerosis and high rates are recorded in an area extending south-eastward from Britain through central Europe. The rates tend to diminish with rising latitude and longitude. In England and Wales the county boroughs with notably high rates during 1958-67 were ...

Eggshell thickness after exposure to DDT was reduced by 21.7 percent in Alaskan tundra peregrines, by 16.8 percent in taiga peregrines, by 7.5 percent in Aleutian peregrines, by 3.3 percent in rough-legged hawks, and not at all in gyrfalcons. Tundra peregrine eggs contain an average of 889 parts of DDE ...

In the second of two articles, Margaret Prior and Susan Miles discuss techniques for the adaptation and removal of casts. They also consider common complications, the provision of appliances and information to patients, as well as some of the problems that may occur when safety is not seen as an ...

The new Colorant Mixture Computer (COMIC II) has been designed as a tool for use in matching and controlling color production. It does not replace a trained colorist, but frees him of routine color matching problems. Some of the theory and practice of COMIC II applications in the automotive industry ...

Intercellular communication was examined in regenerating rat liver and urodele skin, two tissues of fast but normal growth. In both, cellular communication is in general as good as in their respective normal intact state. This stands in striking contrast to the lack of cellular communication in tissues with cancerous growth. ...

The resolution obtainable in electron microscopic autoradiographs, using a photographic emulsion consisting of a monolayer of silver bromide crystals, was investigated theoretically and experimentally. The expected distribution of exposed crystals around a point source was calculated from the geometry of the preparation and from the range distribution of the beta ...

Labor camps in California have proved a new and substantial basis for citizenship on the part of a class heretofore scarcely considered in the problem of government. With camps having proper sanitation the lower type of labor and the agitator are eliminated. Campers of today aid the inspectors by giving ...