scholarly journals The Influence of Exams Stress on Brux Activity in Russian Dental Students

2018 ◽  
Vol 11 (4) ◽  
pp. 2051-2059
Author(s):  
D. V. Medovnikova ◽  
A. S. Ytuzh ◽  
M. G. Soykher ◽  
I. K. Pisarenko ◽  
A. S. Onyanova
Keyword(s):  
Functional Analysis ◽  
Dental Students ◽  
The Other ◽  
Research Protocol ◽  
Single Group ◽  
Group Design ◽  
Lower Jaw ◽  
Negative Effect ◽  
Exam Stress ◽  
Upper Jaw

The study assessed stress and brux activity among dental students during exam (stress) and non-examination (non-stress) periods. The study was initiated as a single group design with the total number of participants 36 (25 females and 11 males). All the participants were examined twice (once in a stress period and once in a non-stress period) according to “Clinical Functional Analysis”, which includes questions about students’ medical and dental history, as well as muscle palpation results. Two «BruxCheckers» (BCs) were applied, one for the upper jaw, the other for the lower jaw, two times for examination and non-examination periods. After the use, the «BCs» were photographed according to the research protocol and the abraded facets area on «BCs» was calculated in square millimeters. The research showed that during a stress period students may have headaches, cramps and pain in shoulder and neck muscles. The research also revealed that during the stress situation the abraded area shifts from frontal teeth to chewing teeth and brux episodes can occur more frequently and with a higher load. Chewing teeth (premolars in our study) are more adapted and more useful for such a condition. Accordingly, our students shifted their brux behavior from teeth 33 and 31 to teeth 15 and 24. Therefore, exams are a strong stress factor for dental students. In turn, prolongated stress can be an indicator of risk factor and have a negative effect for health of the craniomandibular system.

An Anglo-Saxon Disc Brooch from Northamptonshire

1962 ◽  
Vol 42 (1) ◽  
pp. 53-56
Author(s):  
Vera I. Evison
Keyword(s):  
The Body ◽  
The Other ◽  
Anglo Saxon ◽  
Disc Diameter ◽  
Thin Disc ◽  
Lower Jaw ◽  
Upper Jaw

A small gilt-bronze disc brooch was found at Little Houghton, Northants., in 1957, a surface find on a Roman site, and was acquired by Northampton Museum (pl. xv b, fig. 1). It is a thin disc, diameter 2·5 cm., tapering at the border, with remains of pin holder and catch at the back and shallow pattern in relief on the front. The gilding has rubbed off the higher parts of the pattern, and has disappeared entirely in places where the brooch has been damaged and bent, possibly by fire. The ornament consists of two Style II animals, identical except for the shape of the jaw. They are S-shaped, turning round to bite their own backs; the body continues directly into the angle of a back leg which crosses the body and ends at the border in the rudiments of a foot; a front limb shoots forward to interlock with the hind curve of the other animal; the head is an eye framed by a right-angle; in one case the upper jaw passes below the body and the lower jaw is short and curves only slightly outwards; in the other the upper jaw again runs below the body, and the lower jaw swings round and seems to meet the upper jaw behind in a complete loop. There is damage at this point, however, and on analogous evidence it is quite likely that the lower jaw did not join the upper, but swept on independently.

Physiological and Psychological Effects of Short-term Exercise Addiction on Habitual Runners

1982 ◽  
Vol 4 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Lyn Thaxton
Keyword(s):  
Mood States ◽  
Psychological Effects ◽  
The Other ◽  
Exercise Dependence ◽  
Profile Of Mood States ◽  
Short Term ◽  
Group Design ◽  
Dependent Variables ◽  
Skin Response ◽  
Negative Effect

This experiment examined, through quantitative measures, exercise dependence in subjects who had been running at least a year and ran at least 5 days a week. The subjects, 24 males and 9 females, were randomly assigned to groups according to the Solomon four-group design. Two groups ran and the other two did not on the day of the experiment. Pretests were given to one of the running and one of the nonrunning groups. Dependent variables were the Profile of Mood States (POMS) and galvanic skin response. Overall multivariate analysis showed a significant running by pretest interaction. The nonpretested running group revealed significantly lower depression (POMS) and GSR scores than the nonpretested nonrunning group. The results suggest that even slight variations from running schedules may have a negative effect on habitual runners.

The effect of age on tooth loss and the performance of Masham ewes

1984 ◽  
Vol 39 (3) ◽  
pp. 421-425 ◽  
Author(s):  
J. E. Newton ◽  
Caroline Jackson
Keyword(s):  
Tooth Loss ◽  
Live Weight ◽  
The Other ◽  
Lower Jaw ◽  
Upper Jaw ◽  
Group 2 ◽  
Lamb Growth ◽  
Effect Of Age ◽  
Marked Drop ◽  
Group 1

ABSTRACTThe rate of incisor, pre-molar and molar tooth loss was studied in two groups of Masham ewes, one from 8·75 to 12·25 years of age, and the other from 7·25 to 9·25 years of age. Incisors were lost at the rate of 0·93 per year in group 1 and pre-molars from the lower jaw at the rate of 1·04 per year. The rate of loss of molars from the lower jaw and pre-molars from the upper jaw was much slower, whilst there was virtually no loss of molars from the upper jaw.Mean litter size declined gradually from age 7 in group 1, but there was no decline up to age 9 years in group 2. Lambing percentage declined gradually from age 6 years, with a marked drop after age 10 years caused by an increase in barrenness and lamb mortality. Selling percentage also began to decline from age 6 years but dropped sharply after age 9 years following an increase in the number of lambs having to be reared by hand. Ewe live weight, lamb birth weight and lamb growth to 4 weeks of age showed no decline up to 12 years of age.

Pengaruh Luka Iris Pada Tikus Dengan Paparan Hidrogen Peroxida 3% terhadap Epitelisasi dan Pembentukan Eksudat pada Permukaan Epitel Kulit.

2020 ◽  
Vol 17 (2) ◽  
pp. 172
Author(s):  
HARMAN AGUSAPUTRA ◽  
MARIA SUGENG ◽  
AYLY SOEKAMTO ◽  
ATIK WULANDARI
Keyword(s):  
Hydrogen Peroxide ◽  
Wound Healing ◽  
The Other ◽  
Delayed Wound Healing ◽  
Peroxide Group ◽  
Hemostatic Effect ◽  
Significant Difference ◽  
Negative Effect ◽  
Wound Healing Effect ◽  
Epithelial Growth

<p><strong>Abstract</strong></p><p><strong>Background:</strong> Hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) as antiseptic has been used frequently to clean woundsin in hospitals and clinics. Hydrogen peroxide has the effectof strong oxidative that can kill pathogens. It can clean up debris and necrotic tissuesin wounds. Hydrogen peroxidealso has hemostatic effect that can help to stop bleeding. Besides antiseptic effects, hydrogen peroxide i s suspected of having negative effect in wound healing. Hydrogen peroxide presumably could cause delayed wound healing by exudate formation and delayed epithelial growth.</p><p><strong>Method</strong>: This study was conducted in the laboratory using 48 white mice that were divided into 2 groups. All the mice were purposely wounded. Afterwards in one group the wounds were clean up using hydrogen peroxide, while in the other group without hydrogen peroxide as control. The wounds of both groups were observed on day 1, day 3 and day 7. On day 1 and day 3, both groups did not show significant difference.</p><p><strong>R</strong><strong>esult</strong> : on day 7 showed that the wound healing in hydrogen peroxide group were delayed. Fifty percent of them had the formation of exudate and 62.5% of them showed delayed epithelial growth.</p><p><strong>Conclusion </strong>: This study could show hydrogen peroxide as wound antiseptic has delayed wound healing effect.</p><p><strong>Keyword</strong>: hydrogen peroxide, wound healing</p>

The Value of Information in the Hold-Up Problem

2004 ◽  
Vol 5 (2) ◽  
pp. 177-203 ◽  
Author(s):  
Thomas Pfeiffer
Keyword(s):  
Information System ◽  
Information Structure ◽  
Value Of Information ◽  
The Other ◽  
Information Control ◽  
Ceteris Paribus ◽  
Head Office ◽  
Specific Investments ◽  
Negative Effect ◽  
Central Management

Abstract In the literature, the information structure of the hold-up problem is typically assumed to be exogenous. In this paper, we introduce an additional stage at which the head office may grant individual divisions access to an information system before they undertake their specific investments. Although more information ceteris paribus enhances each divisions’ profits, more information can reduce divisions’ investments and destroy synergies for the other division that would have been generated by the investments. If this negative effect dominates, then information can be harmful for the entire company. Hence, information control can be a subtle force to deal with the hold-up problem to a certain extent. In this paper we analyze those conditions under which information is either harmful or beneficial for central management.

On the Chemistry of Tetrabenzyl Thiuram Disulfide and Tetramethyl Thiuram Disulfide with Bis (Triethoxysilylpropyl) Tetrasulfide in Silica Compounds

2003 ◽  
Vol 76 (4) ◽  
pp. 876-891 ◽  
Author(s):  
R. N. Datta ◽  
A. G. Talma ◽  
S. Datta ◽  
P. G. J. Nieuwenhuis ◽  
W. J. Nijenhuis ◽  
...  
Keyword(s):  
High Performance ◽  
Room Temperature ◽  
Succinic Anhydride ◽  
Dynamic Properties ◽  
The Other ◽  
Resonance Spectroscopy ◽  
Reaction Products ◽  
Negative Effect ◽  
Higher Temperature ◽  
Analytical Tools

Abstract The use of thiurams such as Tetramethyl thiuram disulfide (TMTD) or Tetrabenzyl thiuram disulfide (TBzTD) has been explored to achieve higher cure efficiency. The studies suggest that a clear difference exists between the effect of TMTD versus TBzTD. TMTD reacts with Bis (triethoxysilylpropyl) tetrasulfide (TESPT) and this reaction can take place even at room temperature. On the other hand, the reaction of TBzTD with TESPT is slow and takes place only at higher temperature. High Performance Liquid Chromatography (HPLC) with mass (MS) detection, Nuclear Magnetic Resonance Spectroscopy (NMR) and other analytical tools have been used to understand the differences between the reaction of TMTD and TESPT versus TBzTD and TESPT. The reaction products originating from these reactions are also identified. These studies indicate that unlike TMTD, TBzTD improves the cure efficiency allowing faster cure without significant effect on processing characteristics as well as dynamic properties. The loading of TESPT is reduced in a typical Green tire compound and the negative effect on viscosity is repaired by addition of anhydrides, such as succinic anhydride, maleic anhydride, etc.

scholarly journals Morphometric regularities of the depth indices of dental arches in the mesocrane skull type

2018 ◽  
Vol 9 (4) ◽  
pp. 28-32
Author(s):  
E. Y. Efmova
Keyword(s):  
Morphometric Parameters ◽  
Cutting Edge ◽  
Clinical Aspects ◽  
Dental Arch ◽  
Men And Women ◽  
Lower Jaw ◽  
Upper Jaw ◽  
Point Of Intersection

Objective: to reveal the morphometric regularities of the depth indices of the dental arches of the upper and lower jaws of the mesocrane skull type.Material and methods: the morphometric parameters of the depth of the dental arches of the upper and lower jaws were investigated. Te work was performed on 144 preparations of mesocrane skull type of people of both sexes of mature age with physiological occlusion of teeth. Te depth of the dental arch was measured from the point located at the center of the cutting edge of the medial incisor to the point of intersection with the line connecting the distal surfaces of the tooth crowns at the level of the canines, frst premolars, second premolars, frst molars, and second molars.Results: the range of confdence limits of the depth of the dental arches of the upper jaw in men at the level of canines and premolars surpassed those of women. Te range of confdence limits of the depth of the dental arches of the lower jaw in men and women at all levels of measurement was similar.Conclusions: the indices of the confdence limits of the depth of the vestibular and palatal dental arches of the upper and lower jaws are revealed. Te new data obtained as a result of the research, supplement and expand the information on the studied parameters, both in theoretical and clinical aspects.

scholarly journals Functional analysis of mutations of murine chromosome 17 with the use of tertiary trisomy.

Genetics ◽  
1991 ◽  
Vol 127 (4) ◽  
pp. 781-788
Author(s):  
A Ruvinsky ◽  
A Agulnik ◽  
S Agulnik ◽  
M Rogachova
Keyword(s):  
Functional Analysis ◽  
Gene Dosage ◽  
Tail Length ◽  
Proximal Region ◽  
The Other ◽  
Chromosome 17 ◽  
Recessive Mutations ◽  
T Complex ◽  
Functional Nature ◽  
Morphogenetic Effects

Abstract Analysis of the functional nature of mutations can be based on comparisons of their manifestation in organisms with a deletion or duplication of a particular chromosome segment. With the use of reciprocal translocation T(16;17)43H, it is feasible to produce mice with tertiary trisomy of the proximal region of chromosome 17. The mutations on chromosome 17 we tested included brachyury (T), hairpin tail (Thp), kinky (Fuki), quaking (qk), tufted (tf), as well as tct (t complex tail interaction), and tcl (t complex lethal) that are specific to t haplotypes. The set of dominant and recessive mutations was assigned to two groups: one obligatory, manifesting itself in the phenotype independently of the number of normal alleles in di- and trisomics, and the other facultative, phenotypically manifesting itself depending upon the dosage of mutant alleles. A model was derived from analysis of the interaction of the T and Thp mutations with t haplotypes. It seeks to explain the morphogenetic effects of the mutations observed in mice of different genotypes. The tir gene is postulated to reside on chromosome 17 within its framework. It is suggested that the gene dosage ratio at the tir and tct loci determines tail length.

scholarly journals Social Bonding dalam Pengelolaan Hutan Rakyat: Upaya Menuju Masyarakat Hutan yang Sejahtera

2019 ◽  
Vol 1 (1) ◽  
pp. 57
Author(s):  
Khabib Bima Setiyawan
Keyword(s):  
Functional Analysis ◽  
Forest Management ◽  
Management Strategies ◽  
Social Bonding ◽  
The Other ◽  
Tourist Attraction ◽  
Government Institutions ◽  
Bonding Capital ◽  
The Village ◽  
The Relationship

<div><p class="ABSTRAKen">The forest is the source of livelihood of the community around it, forest sustainbility management become important thing to do to ensure the sustainbility of the forest. This research discusses about forest management strategies in the Berjo village, in which consist of three different institutions, they are Taman Hutan Raya (Tahura), Perusahaan Hutan Negara Indonesia (Perhutani), and Lembaga Masyarakat Desa Hutan (LMDH). the aim of this research is to find out the forest management strategies, methode in this research is qualitaive with case studies approach, this research conducted in the village of Berjo, Karangayar city. Purposive sampling is used to select the respondents. Data collection is done by observation, interviews, and documentation. The analysis of the data using the in interactive functional analysis and validation of data using triangulation of sources. The results showed that forest management is achieved by collaboration among Government and non government institutions with their Sosial Bonding Capital which allows for interaction in sharing knowledge as well as glue relations between groups. Social Bonding is owned by LMDH and Tahura are on the intermediate level which means they obey formal but on the other hand they approach at the level of values, culture, and perception. While the relationship between the LMDH (a unit of BUMN) and Tahura (units of goverment departmen) are on the level of social capital that embraced a formalvalue corresponding their jobs desk which are conservation and production of the forest. LMDH along with Perhutani in forest management through partnership relationship. They work togehter in the safeguarding of forests and open tourist attraction. Whereas in the greening of the forest, the Perhutani, the LMDH Tahura and do reforestation.</p></div><p><em><br /></em></p>

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