scholarly journals Quantitative differentiation of types of feeding craters of Rangifer tarandus fennicus

Rangifer ◽  
1992 ◽  
Vol 12 (1) ◽  
pp. 29
Author(s):  
William O. Pruitt, Jr.

During winter 1983-1984 in the Kainuu region of eastern Finland, based on 1363 api profiles, the Värriö Snow Index (VSI) modelled 3 different types of feeding craters dug by Rangifer tarandus fennicus. When mean log VSI of control sites = < ca. 1.4, the animals used suov'dnji (Lappish) or individual, single-use excavations; when mean log VSI of control sites = > 1.4 < ca. 2.1, the animals used fies'ki (Lappish) or cooperative excavations of the perimeter of a site; when mean log VSI of control sites = > ca. 2.6, the animals switched to using ciegar (Lappish) or linear extensions of a suov'dnji, excavated by a sequence of individuals^iegar-type feeding resulted in reduction of mean log VSI of feeding sites even though VSI of control sites increased. Ciegar-type feeding is interpreted as a successful behavioural adaptation to the Sub-Marginal Period.

2017 ◽  
Vol 141 (10) ◽  
pp. 1313-1315 ◽  
Author(s):  
Reena Singh ◽  
Kathleen R. Cho

Context.— Nonuterine high-grade serous carcinomas (HGSCs) are believed to arise most often from precursors in the fallopian tube referred to as serous tubal intraepithelial carcinomas (STICs). A designation of tubal origin has been suggested for all cases of nonuterine HGSC if a STIC is identified. Objective.— To highlight that many different types of nongynecologic and gynecologic carcinomas, including HGSC, can metastasize to the tubal mucosa and mimic de novo STIC. Data Sources.— A mini-review of several recently published studies that collectively examine STIC-like lesions of the fallopian tube. Conclusions.— The fallopian tube mucosa can be a site of metastasis from carcinomas arising elsewhere, and pathologists should exercise caution in diagnosing STIC without first considering the possibility of metastasis. Routinely used immunohistochemical stains can often be used to determine if a STIC-like lesion is tubal or nongynecologic in origin. In the context of uterine and nonuterine HGSC, STIC may represent a metastasis rather than the site of origin, particularly when widespread disease is present.


1973 ◽  
Vol 21 (3) ◽  
pp. 263-272 ◽  
Author(s):  
J. M. Pemberton ◽  
B. W. Holloway

SUMMARYOf 150 wild-type strains ofPseudomonas aeruginosaexamined, 48 formed recombinants when mated toP. aeruginosastrain PAO FP−and hence presumably possess sex factors. Three different types of sex factor were distinguished by the pattern of transfer of particular markers in different regions of the chromosome and by the ability to confer resistance to mercury in strain PAO. One new sex factor, FP39, was studied in detail, and while similar to the previously studied FP2 in terms of transfer kinetics, natural stability and resistance to curing by acridines, it differed from FP2 in promoting chromosome transfer from a site 10 min to the left of the FP2 origin and in showing apparently aberrant entry kinetics for a leucine marker situated 48 min from the FP2 origin. This was due to FP39 having a genetic determinant either for a structural gene of leucine biosynthesis or a specific suppressor gene for this locus. PAO strains carrying both FP2 and FP39 were unstable for both sex factors, suggesting a relationship between them.


1991 ◽  
Vol 69 (9) ◽  
pp. 2423-2429 ◽  
Author(s):  
Ivar Folstad ◽  
Arne C. Nilssen ◽  
Odd Halvorsen ◽  
Johan Andersen

Intensities of warble fly larvae, Hypoderma tarandi (L.), were examined in slaughtered reindeer (Rangifer tarandus tarandus L.) from different summer grazing areas of Finnmark County, northern Norway. To test the hypothesis that larval abundance decreases with increase in post-calving migration distance (i.e., distance from calving grounds), herds with differing migration distances were sampled. The prevalence of infection in the total sample of 1168 animals was 99.9%. The study revealed significant differences in larval abundance among herds from different summer grazing areas. Herds with post-calving migrations have significantly lower larval abundances than herds remaining on or near the calving grounds for the whole summer. Between-herds variation in abundance of H. tarandi larvae is assumed to reflect differing densities of the infective stage (adult flies) on the herds' summer ranges. Larval abundance in a herd is in turn negatively correlated with the distance between the main larval shedding areas (i.e., calving grounds) and the areas of greatest transmission (i.e., summer pastures). These results are discussed in relation to transmission of other parasites common to Rangifer and suggest that this host's post-calving migration may be a behavioural adaptation that reduces levels of parasitic infections.


Author(s):  
Gaini Mukhtarova ◽  
Assel Dadyrova ◽  
Mukhtar Baibossyn

The purpose of the article is to study the legacy of the Koyandy fair and its impact on the development of traditional Kazakh culture. The research is based on the scientific expedition results collected by the authors of this work during the field trip to Karkaralinsk (Karaganda region, Kazakhstan). The work studies the history of one of the largest fairs in Kazakhstan - the Koyandy fair, which was functioned from the second half of the XIX- the up to the beginning of the XX century territory Kazakhstan. The Koyandy fair had a significant impact on the spread of the popularity among the broad masses of the works of Kazakh artists. The renowned Kazakh folk composers such as Ukili Ybray, Birzhan sal, Akhan-Sere, Estay, Tattimbet Kazangapuly, performers Amre Kashaubaev, Maira Ualikizi, Isa Bayzakov, wrestlers Kazhymukan Munaitpasov and Balauan Sholak performed at the fair. It is essential to mention that the fair was a trading place and a site for a regional art festival's conduction. The Koyandy fair was a place for exchanging and interacting with different types, genres, and traditions of diverse performing arts schools.


2020 ◽  
Vol 8 (2) ◽  
pp. 125-141
Author(s):  
Amanda Sarah Chin

Suits’ evocation of masculinity within the neo-liberal office as a site of gender configuration is plural. Although its male protagonists all possess structural power as white, heterosexual, intelligent men (two are wealthy, and eventually the third comes to be), they each reflect varied and occasionally contrasting forms of masculinity. The article explores how, over the seasons, Suits progresses from breadth to depth, with its male characters threading their way through different types of masculine behaviours in order to succeed. In the face of recurrent challenges, their masculinities must be reconfigured. The article examines the manner in which the self becomes a locus of accountability to situate one’s problem-solving ability and subsequent empowerment through performing multiple masculinities.


2002 ◽  
Vol 20 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Simon Hayhoe ◽  
Maria McCrossan ◽  
Aden Smith ◽  
David Ellis ◽  
Simon Croft ◽  
...  

Unselected, disposable acupuncture needles from various manufacturers and retail suppliers were taken from a pool of donated and bought samples. Three needles of each type were prepared for electron-microscopy. The needle tips were inspected at two magnifications (x39.37 and x612.5): 52 electron-micrographs were taken of 31 individual needles from 11 different types. No needle-tip looked perfect and significant faults were seen in most; some appeared seriously deformed. The faults noted were: scratch marks along or across the needle, metallic scuff, lumps and irregularities in the needle surface, needle-tip stubbed or malformed, and needle point off-centre. An additional test made was to wipe a number of needles firmly on white paper tissue. Some left grey lines, and these were regarded as evidence of metallic or oily residue from the needle surface which could have been deposited in the patient. These unexpected findings, in a variety of popularly used needles from well-respected suppliers, suggest that most manufacturers need to reassess their quality control procedures.


2011 ◽  
Vol 12 (2) ◽  
pp. 61-74
Author(s):  
Mithuraaj Dhusiya

University of DelhiUnlike the werewolf myth, on which there is a significant corpus of takes in Hollywood cinema, Indian horror films abound in snake-, tiger- and gorillatransformations. Most of these shape-shifting monsters represent aberrant subjectivities that set in motion a cycle of destruction and redemption within these narratives. This article will explore how the male body in Indian horror films acts as a site of different bodily discourses that permits a reading of socio-cultural crises within the societal framework. Although there are almost a dozen Indian horror films to date that deal with such shape-shifting monsters, this article will limit itself to studying one Hindi film Jaani Dushman (1979, dir. Raj Kumar Kohli) and one Telugu film Punnami Naagu (1980, dir. A. Rajasekhar). The following core questions will be explored: do these narratives challenge the constructions of hegemonic masculinity? What departures from normative masculinity, if such a thing exists at all, take place? How do these narratives use horror codes and conventions to map the emergence of different types of masculinities? How can these bodily discourses be correlated with various contemporary socio-political issues of India?


Mechanik ◽  
2018 ◽  
Vol 91 (4) ◽  
pp. 322-324
Author(s):  
Wojciech Kacalak ◽  
Katarzyna Tandecka ◽  
Filip Szafraniec ◽  
Łukasz Rypina ◽  
Thomas G. Mathia

Micro-finishing with abrasive foils is characterized by a single use of the tool, which makes it necessary to optimally fill the space between the grains of the processing products. Microscopy research with the use of scanning electron microscopy enables a more complete evaluation of the machining process. Based on the structure of micro-chips, the phenomena occurring in the micro-finishing zone with foils with electrocorunded abrasive grains with a nominal size of 15 μm have been described. It has been shown that the analysis of micro-chips, the bottoms of machining marks and the size of micro-chips with segmentation construction allows to estimate the frequency of process discontinuities. Different types of spherical chips, created as a result of very high temperatures, are also presented as a phenomenon unfavorable for the process.


2021 ◽  
Vol 13 (17) ◽  
pp. 9953
Author(s):  
Morgana Weber Macena ◽  
Rita Carvalho ◽  
Luísa Paula Cruz-Lopes ◽  
Raquel P. F. Guiné

The use of plastics for packaging has some advantages, since they are flexible and inexpensive. However, most plastics are of single use, which, combined with low recycling or reuse ratios, contributes substantially to environmental pollution. This work is part of a project studying the habits of Portuguese citizens concerning plastic food packaging and focuses on aspects related to sustainability. The survey was carried out via an online questionnaire about sustainability, recycling, and knowledge of the effects of plastic materials or their residues on the environment. The results were obtained based on a statistical analysis of the data. The participants tend to think about the negative impact of plastic packages on the environment; 39% sometimes do not buy plastic; and 30% try to look for alternatives. A substantial fraction, 81%, support the avoidance of plastic utensils and reduction in the use of plastic bags. Most participants have a good knowledge of recycling and strongly agree with the use of recycled materials, and 87% of respondents practice separation of different types of waste for recycling. Changing plastic consumption habits has not been an easy task. Nevertheless, it is expected that society will increasingly move toward sustainable habits, questioning its actions and considering their impact on the environment.


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