scholarly journals Effects of age on histological parameters of the sweat glands of Nellore cattle

Revista CERES ◽  
2015 ◽  
Vol 62 (2) ◽  
pp. 129-132 ◽  
Author(s):  
Mara Regina Bueno de Mattos Nascimento ◽  
Enéias Aurélio Dias ◽  
Thaisa Reis dos Santos ◽  
Gustavo Ferreira Ayres ◽  
Carolina Cardoso Nagib Nascimento ◽  
...  

The sweat glands are important in thermoregulation of cattle in a warm environment as they help dissipate heat through evaporation. Studies on gland histology are important to define its secretion potential and the capacity of perspiration and heat removal. The objective of this study was to determine, by histomorphometry, glandular epithelium height, the depth of the gland, length of the glandular portion and number of glands per cm2 of the sweat glands of the three age groups of Nellore cattle. Thirty females were used in this study. They were equally divided into calves, heifers and cows. Histological sections were obtained and analyzed by digital images in Trinocular BX40 Olympus microscope coupled to an Oly - 200 camera, connected to a computer. The images were obtained with microscope with 2x, 4x, 10x and 40x magnification objectives. The measurements were performed using HL Image 97 program. The height of glandular epithelium, depth of the glands, length and density of the glandular portion per cm2 , were all analyzed. The calves showed greater height of the glandular epithelium than heifers (P = 0.0024), and cows (P = 0.0191). The depth of the gland was not influenced by age. Cows had higher length of secretory portion than heifers (P = 0.0379) and calves (P = 0.0077). Heifers had a greater number of sweat glands per cm2 of skin than cows (P = 0.023). In cattle, the height of glandular epithelium and the density decreases as animals get older. On the other hand, the length of the secretor portion increases but with no changes in the depth of the sweat glands

Author(s):  
Lemcia Hutajulu ◽  
Hery Sunandar ◽  
Imam Saputra

Cryptography is used to protect the contents of information from anyone except those who have the authority or secret key to open information that has been encoded. Along with the development of technology and computers, the increase in computer crime has also increased, especially in image manipulation. There are many ways that people use to manipulate images that have a detrimental effect on others. The originality of a digital image is the authenticity of the image in terms of colors, shapes, objects and information without the slightest change from the other party. Nowadays many digital images circulating on the internet have been manipulated and even images have been used for material fraud in the competition, so we need a method that can detect the image is genuine or fake. In this study, the authors used the MD4 and SHA-384 methods to detect the originality of digital images, by using this method an image of doubtful authenticity can be found out that the image is authentic or fake.Keywords: Originality, Image, MD4 and SHA-384


1986 ◽  
Vol 13 (2) ◽  
pp. 305-315 ◽  
Author(s):  
Josef Perner ◽  
Susan R. Leekam

ABSTRACTTwo groups of 3-year-old children (3:0–3;6 and 3;6–4;0) observed two actions of a toy. In one condition an older partner was absent while the subject watched both of the toy actions (fully ignorant partner), whereas in the other condition the partner witnessed one of the two actions together with the subject (partially ignorant partner). When asked about the toy's actions by their partially ignorant partner both age groups adjusted their answers to their partner's ignorance and mentioned only that action which was new to their partner. However, in their answers to their fully ignorant partner the younger children tended to provide insufficient information by mentioning only one instead of both actions.


2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1189.1-1189
Author(s):  
X. E. Larco Rojas ◽  
E. Diez Alvarez ◽  
C. Moriano ◽  
A. López Robles ◽  
T. Pérez Sandoval

Background:Primary Sjogren’s Syndrome (PSS) is an autoimmune and lymphoproliferative disease with a heterogeneous presentation. It has been postulated that there may be different phenotypes, in some cases presenting a more aggressive disease with systemic manifestations and a higher risk of developing complications. This phenotype has been associated with a higher autoimmune load and an earlier age of presentation. Furthermore, the presence of anti La + has been related to an increased risk of developing Lymphoma.Objectives:To describe the phenotypic characteristics of seronegative PSS in a sample of patients from our practice. To compare the clinical and laboratory characteristics between patients with Ro + / La + and Ro + / La- antibodies. To Analyze if there are differences in patients diagnosed at an early age, compared to a later age.Methods:Clinical and serological characteristics of patients with the diagnosis of PSS were collected from the Rheumatology database of León`s Hospital between 2014-2020. All patients who met the ACR / EULAR 2016 criteria were classified as seronegative Sjogren.In the group of patients with positive autoimmunity, anti-Ro + / La + were compared with the anti-Ro + / La- patients and by age, stratifying them into the following groups: 0-49; 50-69 and> 70 years. The clinical variables analyzed were: glandular inflammation, Raynaud’s phenomenon (RP), pulmonary and neurological involvement, presence of Lymphoma and other tumours. The serological variables were: positivity of ANA, Rheumatoid Factor (RF), hypocomplementemia, hypergammaglobulinemia and B2 microglobulin.Results:72 patients were analysed, 9 were excluded because didn’t meet the criteria. Of the remaining: 90,4% were women, with a mean age of 58,7+/-15,8 years, 12,6% (8) were seronegative. In the seronegative group 25% presented lung involvement (Lymphoid Interstitial Pneumonia), 50% presented with glandular inflammation and only one patient had RP. As complications 1 patient presented Lymphoma and 1 Breast Carcinoma.58,7% (37) Ro + / La + and 28,5% (18) Ro + / La- patients were identified, no statistically significant differences were found between the two groups when comparing: glandular inflammation (8/37 vs 2/18, p = >0.05) RP (9/37 vs 4/18, p = >0.05), pulmonary involvement (5/37 vs. 6/18, p = >0.05), neurological involvement (2/37 vs. 1/18, p = >0.05), presence of Lymphoma (2/37 vs. 0 / 18, p = >0,05), other tumours (2/37 vs 3/18, p = >0.05), ANA positivity (36/37 vs 16/18, p =>0,05), Hypocomplementemia (4/37 vs 3/18, p =>0.05) and Hypergammaglobulinemia (20/37 vs 10/18, p =>0.05). But a higher frequency of positive RF linked to anti La positivity (29/37 vs 6 / 18p = 0.002) was found.When comparing by age groups, the association between RF + and La + remained in the group of 50-69 years (15/18 vs 3/18, p = 0.002) while in the other age groups there were no statistically significant differences. We also observed an increasing trend of the levels of B2microglobulin in La+ patients and later age (p=0,04)Conclusion:The presence of anti La + seems to be associated with other components of autoimmunity such as RF in patients with PSS, although this study did not show a relation with a higher frequency of complications or systemic disease. Also, the presence of La+ at older ages was associated with higher levels of B2 microglobulin. We didn’t find differences with the other described markers of B cell reactivation. Findings differ from those found in the literature, which may be largely due to sample size.References:[1]Quartuccio L., Baldini C., Bartoloni E., et al. Anti-SSA/SSB-negative Sjogren’s syndrome shows a lower prevalence of lymphoproliferative manifestations, and a lower risk of lymphoma evolution. Autoimmunity Reviews 14 (2015) 1019–1022.[2]Quartuccio L, Isola M, Baldini C, Priori R, Bartoloni Bocci E, Carubbi F, et al. Biomarkers of lymphoma in Sjögren’s syndrome and evaluation of the lymphoma risk in prelymphomatous conditions: results of a multicenter study. J Autoimmun 2014; 51:75–80.Disclosure of Interests:None declared


PEDIATRICS ◽  
1956 ◽  
Vol 18 (1) ◽  
pp. 31-38
Author(s):  
Paul R. Patterson ◽  
Earle L. Lipton ◽  
Klaus R. Unna ◽  
Kurt Glaser

The susceptibility of healthy children to neostigmine by hypodermic injection was studied in controlled experiments on 45 children ranging in age from 1 month to 12 years. Minimum effective doses (MED) of neostigmine were determined by their effect in stimulating salivary and sweat glands, and in increasing gastrointestinal motility. The MED of neostigmine for stimulation of salivation is in all age groups smaller (by 6 to 38 per cent) than the MED increasing gastrointestinal motility. The average MED either for glandular (.025 to .036 mg./kg.) or gastrointestinal (.036 to .045 mg./kg.) activity fails to show significant differences among the various age groups when expressed in terms of body weight. Exceptions were found exclusively in children weighing more than 30 kg. The findings do not support the view that a physiologic vagotonia is present in infants.


2006 ◽  
Vol 21 (3) ◽  
pp. 112-117
Author(s):  
Shinichi Furuya ◽  
Hidehiro Nakahara ◽  
Tomoko Aoki ◽  
Hiroshi Kinoshita

The purpose of this study was to investigate the prevalence of playing-related musculoskeletal disorders (PRMDs) among Japanese female classical pianists of different age groups. The causal factors for PRMDs also were examined. A group of 203 senior pianists, including piano teachers and students with piano majors at high schools and colleges, were surveyed using questionnaires. Results showed that 77% of these pianists suffered from PRMDs in at least one of their body portions. This value was larger than those reported in Western countries. Forty-four percent of these were serious enough to warrant medical treatment, which was a lower rate than reported in Western countries. The difference in these numbers may reflect the current state of understanding of PRMDs among Japanese pianists and their educators. The prevalence of PRMDs was found to be age-dependent. In the student groups, the finger/hand had the highest rate of PRMDs, followed by the forearm and shoulder. The senior group, on the other hand, had the highest PRMD incidence at the neck/trunk, followed by the forearm and hand/finger. Care may need to be exercised for these differences. The results also indicated that prolonged daily practice (>4 hours), playing chords forcefully, eagerness about practice, and nervous traits were found to contribute to the development of PRMDs in these pianists. Hand size was, on the other hand, not a significant risk factor of PRMDs.


JURTEKSI ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 133-142
Author(s):  
Alwin Fau ◽  
Fince Tinus Waruwu

Abstract: In today's technological developments, digital images are a medium that is often used to store a person's identity. Digital images are currently widely used for data security needs. On the other hand, images can also be used as a medium for tapping data. Today's digital media provide many things in manipulating and changing the information contained in these images. In this study, the authors conducted a study to examine similarities in digital images so that it could be seen whether the information was authentic or not. detecting image similarities can help find out information whether the image is the same as the original object or not. The method used in this research is the Eigen Face method. The face eigen method is a method that can be used to check and match the similarities of an image. With the eigenface value, Figure 1, Figure 2, Figure 3, it can be determined that with other eigenface values can be determined based on the eigenface matrix values obtained from each image. Based on the values obtained from Figures 1, 2, and 3, it can be concluded that the eigenface method is able to present facial similarities with a presentation value of 80%.            Keywords: Eigenface; Face Recognation; Images; Images Processing  Abstrak: Dalam perkembangan teknologi saat ini, gambar digital merupakan media yang sering digunakan untuk menyimpan identitas seseorang. Gambar digital saat ini banyak digunakan untuk kebutuhan keamanan data. di sisi lain, gambar juga dapat digunakan sebagai media penyadapan data. Media digital saat ini menyediakan banyak hal dalam memanipulasi dan mengubah informasi yang terdapat pada gambar tersebut. Dalam penelitian ini penulis melakukan penelitian untuk menelaah kemiripan pada citra digital sehingga dapat diketahui apakah informasi tersebut otentik atau tidak. Mendeteksi kemiripan citra dapat membantu mengetahui informasi apakah citra tersebut sama dengan objek aslinya atau tidak. Metode yang digunakan dalam penelitian ini adalah metode Eigen Face. Metode eigen wajah merupakan metode yang dapat digunakan untuk mengecek dan mencocokkan kemiripan suatu citra. Dengan nilai eigenface, Gambar 1, Gambar 2, Gambar 3, dapat ditentukan bahwa dengan nilai eigenface lainnya dapat ditentukan berdasarkan nilai matriks eigenface yang diperoleh dari masing-masing citra. Berdasarkan nilai yang diperoleh dari Gambar 1, 2, dan 3, dapat disimpulkan bahwa metode eigenface mampu menghadirkan kemiripan wajah dengan nilai presentasi 80%.. Kata kunci: Citra; Eigenface; Pengolahan Citra Digital; Pengenalan Wajah


Lexicon ◽  
2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Yemima Febriani ◽  
Sharifah Hanidar

This research aims to analyze the request strategies used in an American TV Series entitled Full House season 7 episodes 1-12. The main characters are family members from three different age groups (adult, teenager, and children). This research attempts to see if there is any difference on the choice of request strategies used by the three age groups. Blum-Kulka and Olshtain’s (1984) theory on request directness level is used to classify the requests. Relative power and social distance are also studied to see how they influence the characters in making their requests. The results show that mood derivable is the most frequent strategy used by all age groups. Specifically, direct request is highly used by the adult age groups. On the other hand, indirect request is mostly used by the younger age groups. The results also show that all age groups tend to use direct strategy when the social distance is negative. However, when the social distance is positive, the choice of strategy depends on the authority of the speaker.


2014 ◽  
Vol 23 (3-4) ◽  
pp. 151-168
Author(s):  
Aristotelis Gioldasis ◽  
Evangelos Bekris ◽  
Ioannis Gissis

Abstract The aim of this study was to examine the anthropometric and fitness characteristics of soccer players with different positional role. Although, players’ skills are not equally distributed in each position, at elite soccer they have to perform each skill at a sufficient level. However, coaches expertise those from an early age in specific positions without giving them an holistic individualized training. In the study participated 312 Greek players aged 6 to 17 (M= 11.89; SD= 2.33) of 5 age groups (group U7-U8; group U9-U10; group U11-U12; group U13-U14; group U15-U16; group U17). Anthropometric (height, weight, body mass index and body fat) and fitness characteristics (flexibility, vertical jump, running speed, agility and VO2max) of participants were measured. The study showed that goalkeepers and central defenders tend to perform worse than players of the other positional groups in most of their fitness characteristics for almost all the age groups. Furthermore, many tendencies were observed in anthropometric and fitness characteristics between players with different positional roles. This study provides suggestions to coaches regarding their practice of positioning players according to their anthropometric and fitness characteristics for a short term success.


2021 ◽  
pp. 209-232
Author(s):  
Juliana Uhuru Bidadanure

This chapter focuses on disparities in political power between age groups. In particular, it looks at the critical underrepresentation of young adults in legislative bodies and makes the case that the introduction of youth quotas should be considered as a remedy. The defense has two parts: the first discusses the likely impact of youth quotas on the substantive representation of young adults’ interests; the other makes the case that youth quotas have symbolic value and could contribute to the affirmation of the young’s status as political equals. The chapter argues that these substantive and symbolic arguments jointly provide a good basis for a politics of youth presence in parliaments. The chapter concludes by drawing attention to the distinction between age and cohort quotas.


Author(s):  
Pere M. Parés-Casanova

Organisms can develop different kinds of asymmetry when deviations from expected perfect symmetry occur. Among others are fluctuating asymmetry (FA) and directional asymmetry (DA). FA represents small random differences between corresponding parts on the left and right sides of an individual in bilaterally paired structures. It is thought that FA reflects an organism’s ability to cope with genetic and environmental stress during growth. DA occurs whenever one side on the plane of symmetry develops more than the other side, and has a genetic component. In this research, we examined the expression of morphological symmetry in 38 skulls of different age groups of wild boar (Sus scrofa), on their ventral aspect, using two-dimensional coordinates of 27 landmarks. Analyses showed the presence of significant FA and DA in the entire sample, detecting also distinctive differences between age groups. The obtained results show that the shape differences in different age groups could reasonably be a consequence of a response to environmental factors for FA and a masticatory lateralization for DA.


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