Morphological variability of stamens and pollen of Platanus x acerifolia (Aiton) Willd. (Platanaceae) in relation to palaeobotany

Palaeobotany ◽  
2014 ◽  
Vol 5 ◽  
pp. 28-41
Author(s):  
N. P. Maslova
Keyword(s):  
Morphological Variability ◽  
Pollen Grains ◽  
Morphological Characters ◽  
Krasnodar Region ◽  
Group 2 ◽  
High Degree ◽  
Geographical Locations ◽  
Group 1

The range of the variability of the morphological characters of stamens and pollen grains in Platanus x acerifolia (Aiton) Willd. from different geographical locations — Anapa, Krasnodar region, Russia (group 1) and Santa Cristina, Spain (group 2) was studied. A high degree of conservatism of such stamens features as the form of anthers, the form of pollen sacks, and the prominent apical extension of the connectives for both groups is shown. The shape and degree of pubescence of the apical extension of the connective, as well as the degree of the cutinization of theca are different in two groups. The characters of pollen grains in both groups are quite conservative. The implications of these data for paleobotanical research are discussed.

Synchronous Ovarian and Appendiceal Mucinous Neoplasms in the Absence of Pseudomyxoma Peritonei

2017 ◽  
Vol 27 (2) ◽  
pp. 214-222
Author(s):  
Xianyong Gui ◽  
Jorge Escobar ◽  
Cheng-Han Lee ◽  
Máire A. Duggan ◽  
Martin Köbel
Keyword(s):  
Pseudomyxoma Peritonei ◽  
Synchronous Tumors ◽  
Marker Panel ◽  
Ovarian Surface ◽  
Mucinous Neoplasms ◽  
Group 2 ◽  
High Degree ◽  
Ovarian Involvement ◽  
Appendiceal Perforation ◽  
Group 1

BackgroundSynchronous ovarian/appendiceal mucinous neoplasms sometimes occur in the absence of clinical pseudomyxoma peritonei (PMP), which raises a question about whether the 2 tumors could be independent.MethodsWe identified 11 cases of synchronous ovarian/appendiceal mucinous neoplasms without PMP and subclassified them into groups 1 and 2 based on the presence or absence of microscopic peritoneal/ovarian surface mucin deposits. A 7-marker panel (CK7, CK20, CDX2, PAX8, MUC1, MUC2, and MUC5AC) immunohistochemistry was performed on both tumors.ResultsBetween the 2 groups, there were no significant differences in age, laterality, size, and histology of ovarian/appendiceal tumors. In group 1, 2 of 4 cases developed PMP later, and both had ovarian surface and contralateral ovarian involvement and appendiceal perforation with microscopic mucin deposits on the peritoneum. No patients in group 2 developed PMP. All group 1 cases showed a high degree of concordance of immunoprofile between the synchronous tumors, with an identical expression of appendiceal pattern in greater than 90% of the markers. In group 2, only 1 of 7 cases showed concordance in all markers.ConclusionsIf peritoneal mucin deposits present, even microscopic and acellular, the synchronous tumors are most likely of a single appendiceal origin. Otherwise, they are more heterogeneous, and some may be truly dual primaries.

Complex medical rehabilitation of adolescents with dentoalveolar pathology in orthodontic treatment

2020 ◽  
pp. 67-78
Author(s):  
A. V. Kokareva ◽  
V. A. Zelenskiy ◽  
I. I. Gaidamaka ◽  
S. A. Pachin ◽  
R. M. Gusov ◽  
...  
Keyword(s):  
Standard Therapy ◽  
Orthodontic Treatment ◽  
Clinical Manifestations ◽  
Main Group ◽  
Medical Rehabilitation ◽  
Physical And Mental Health ◽  
Craniosacral Therapy ◽  
Group 2 ◽  
High Degree ◽  
Group 1

The purpose of the study is to increase the effectiveness of medical rehabilitation of adolescents with dentoalveolar pathology in orthodontic treatment based on the inclusion of florentine waters, therapeutic physical exercise according to the craniovertebral method, and osteopathic craniosacral therapy in rehabilitation regimens. Material and methods. There have been observed 106 adolescents with dentoalveolar pathology on orthodontic treatment. They were distributed into 3 groups by simple randomization: in the main group 2, the patients received gum irrigation with fir extract florentine water, physical therapy exercises (PTE) according to the craniovertebral method and osteopathic craniosacral therapy in combination with the standard therapy; in the main group 1, the patients were prescribed gum irrigation with fir extract florentine water and PTE according to the craniovertebral method in combination with standard therapy; in the group of comparison, the patients had only irrigation of the gums with fir extract florentine water in combination with standard therapy. Results. In the main group 2, 83,1 % of cases noted levelling of clinical manifestations 6 months later, and 97.9 % — 18–20 months later, while the patients who received irrigation with fir extract florentine water (FW) in combination with standard therapy and PTE according to the craniovertebral method had an improvement in 63,5 % and 85.0 % of cases; when using only irrigations with fir extract FW against the background of standard therapy there was an improvement in 49.4 % and 78.1 % of cases; the reduction of the total number of functional disorders and stabilization of the statokinetic system within 6 months were improved by 1,81 (p < 0.01), and after 18–20 months — 2,61 (p < 0,01) times, while using irrigations with fir extract FW against the background of standard therapy and PTE according to the craniovertebral method, the improvement was by 1,38 (p < 0,01) and 1,69 (p < 0,01) times; when using only irrigations with fir extract FW against the background of standard therapy — by 1,27 (p < 0,05) and 1,73 (p < 0,01) times, respectively, which, with a high degree of reliability, has correlated with the improved dental, physical, and mental health. Conclusion. The developed technology of medical rehabilitation of adolescents using florentine waters, therapeutic physical exercises according to the craniovertebral technique and osteopathic craniosacral therapy is viable and pathogenetically justified.

scholarly journals A NEW TRICHOTAENIA SPECIES FROM TANZANIA (COLEOPTERA, CICINDELIDAE)

2008 ◽  
Vol 40 (2) ◽  
pp. 243
Author(s):  
Fabio Cassola
Keyword(s):  
Morphological Characters ◽  
Group 2 ◽  
Group 1

<em>Trichotaenia kudrnai</em> n. sp., is described from Mpanda, Rukwa, Tanzania. By having a partially hairy labrum, it is obviously a member of group 2 (species of group 1 have a glabrous labrum instead), and in particular it is apparently closely allied to <em>T.</em> <em>rivalieri</em> Basilewsky, 1958, however differing from it because of several important morphological characters, such as the different patterns of elytral and pronotal pubescence, the shorter pronotum with more apparent notopleural sutures and the even stronger elytral sculpture.

scholarly journals PROTEOMIC DIAGNOSTIC TECHNOLOGIES AND THEIR APPLICATION FOR THE REFRACTIVE CORRECTION OF AMETROPIA

2017 ◽  
Vol 12 (4) ◽  
pp. 193-199
Author(s):  
M. A Kovalevskaya ◽  
I. V Chernikova ◽  
V. S Podoprigora ◽  
Mariya I. Sergeeva
Keyword(s):  
Dry Eye ◽  
Ocular Surface ◽  
Dry Eye Syndrome ◽  
Tear Fluid ◽  
Antioxidant Protection ◽  
Before And After ◽  
Group 3 ◽  
Group 2 ◽  
High Degree ◽  
Group 1

Aim. The objective of the present study was the analysis of the tear fluid proteomic status and the eye surface of the patients presenting with ametropia before and after laser-assisted in situ keratomileusis (LASIK). Material and methods. The study included 163 patients (326 eyes) divided into three groups. Group 1 was comprised of 51 adult patients (102 eyes)at the age from 35 to 54 years suffering from high-degree myopia and astigmatism. Group 2 was composed of 26 adult patients (52 eyes) at the age from 35 to 55 years suffering from moderate or high-degree hyperopia and astigmatism. Group 3 consisted of 86 younger patients (172 eyes) at the age from 18 to 54 years suffering from high-degree myopia and astigmatism. The dry eye syndrome and the state pf the cornea were diagnosed with the use of the Lipkof’s test, Schirmer’s test, TBUT test, and corneal fluorescence staining. The antioxidant activity of the tears was estimated based on the results of measurements of peroxyredoxin-6 (PEDX6) expression. Results. The level of PEDX6 expression after LASIK increased in the patients presenting with myopia by 1.4 times and in those with hyperopia by 1.07 times, that is it changed but slightly after the operation and was 6.2 times less pronounced in comparison was the myopes. Conclusion. The study has demonstrated that two methods proved reliable for the evaluation of the tear fluid proteomic status, viz. the Lipkof’s test (1.82 ± 0.2mm, stage 3) and the TBUT test (8.0 ± 1.46 seconds), suggesting the presence of grade 2 dry eye syndrome. Te same refers to the patients of group 2: the results of the Lipkof’s test (1.31 ± 0.2mm) and the TBUT test (8.23 ± 0.87 seconds). The level of antioxidant protection of the ocular surface (PEDX6 expression) depended on the type of the refractive error: in the patients of group 1 before and after LASIK, PEDX6 expression was 4.7 times (13.57 ± 0.83) and 6.2 (19.31 ± 0.71) higher 2.88 ± 0.38 and 3.09 ± 0.47) than in those of group 2, respectively. In addition, it was shown that the level of antioxidant protection of the ocular surface (PEDX6 expression) depended on the age of the patients prior to LASIK: it was 1.3 lower in group 1 than in group 3 (1.35 ± 0.83 and 17.77 ± 1.03 respectively). The clinical significance of the tests for the tear fluid production and proteomic status changed appreciably after LASIK. The TBUT test for diagnostics of dry eye syndrome remained reliable in all the groups.

scholarly journals Molecular phylogenetics, seed morphometrics, chromosome number evolution and systematics of EuropeanElatineL. (Elatinaceae) species

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2800 ◽  
Author(s):  
Gábor Sramkó ◽  
Attila Molnár V. ◽  
János Pál Tóth ◽  
Levente Laczkó ◽  
Anna Kalinka ◽  
...  
Keyword(s):  
Molecular Phylogenetics ◽  
Morphological Variability ◽  
Morphological Characters ◽  
Morphological Evidence ◽  
Phylogenetic Study ◽  
Mediterranean Species ◽  
Molecular Phylogenetic Study ◽  
Molecular Phylogenetic ◽  
Chromosome Number Evolution ◽  
High Degree

The genusElatinecontainsca25 species, all of which are small, herbaceous annuals distributed in ephemeral waters on both hemispheres. However, due to a high degree of morphological variability (as a consequence of their amphibious life-style), the taxonomy of this genus remains controversial. Thus, to fill this gap in knowledge, we present a detailed molecular phylogenetic study of this genus based on nuclear (rITS) and plastid (accD-psaI,psbJ-petA,ycf6-psbM-trnD) sequences using 27 samples from 13 species. On the basis of this phylogenetic analysis, we provide a solid phylogenetic background for the modern taxonomy of the European members of the genus. Traditionally accepted sections of this tree (i.e., CryptaandElatinella) were found to be monophyletic; onlyE. borchoni—found to be a basal member of the genus—has to be excluded from the latter lineage to achieve monophyly. A number of taxonomic conclusions can also be drawn:E. hexandra, a high-ploid species, is most likely a stabilised hybrid between the main sections;E. campylospermamerits full species status based on both molecular and morphological evidence;E. gussoneiis a more widespread and genetically diverse species with two main lineages; and the presence of the AsianE. ambiguain the European flora is questionable. The main lineages recovered in this analysis are also supported by a number of synapomorphic morphological characters as well as uniform chromosome counts. Based on all the evidence presented here, two new subsections withinElatinellaare described: subsectionHydropiperaconsisting of the temperate species of the section, and subsectionMacropodaeincluding the Mediterranean species of the section.

A methodical and taxonomic study of dispersed oak pollen (Fagaceae) from the Holocene of Rolla, Missouri, USA

Phytotaxa ◽  
2016 ◽  
Vol 288 (3) ◽  
pp. 227
Author(s):  
MARIA V. TEKLEVA ◽  
ROBERT D. HASELWANDER
Keyword(s):  
Electron Microscopy ◽  
Light And Electron Microscopy ◽  
Pollen Grains ◽  
Good Prospect ◽  
Long Distance ◽  
Forest Density ◽  
Oak Pollen ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Oak pollen has great potential to be used in reconstructing paleovegetation and paleoclimate. Pollen grains from Holocene sediments of Rolla, Missouri, USA were studied. The goal of this study was to evaluate the morphology of dispersed oak pollen using light and electron microscopy. Three types of oak pollen were recognized: Group 1, Group 2, and Group 3. They occurred in the sample in the following approximate percentage: 52, 32 and 16% respectively. Pollen of Group 1 corresponds to that of white oaks, pollen of Group 2 to that of red oaks. Pollen of Group 3 differs from oak pollen known for the studied region. While electron microscopy shows a good prospect for a detailed interpretation of dispersed oak pollen, many factors should be taken into account when assessing past vegetation: the paleo-forest density, location of sampling, apparent wind direction during pollination, and the “resolving ability” of pollen morphology for different oak species. The intensity of flowering and direction of the pollen transport can significantly influence the quantity of pollen of a particular species in the spectrum. The possibility of medium or long-distance transport of a small quantity of oak pollen from other regions should also be considered in the interpretations of fossil spectra.

P07.03 Fluorescence navigation in glioma surgery using 5 ALA and chlorin E6

2021 ◽  
Vol 23 (Supplement_2) ◽  
pp. ii25-ii25
Author(s):  
A Rynda ◽  
V Olyushin ◽  
D Rostovtsev
Keyword(s):  
Malignant Gliomas ◽  
Radical Resection ◽  
Chlorin E6 ◽  
High Efficacy ◽  
Glioma Surgery ◽  
Significant Difference ◽  
Group 2 ◽  
High Degree ◽  
Grade Iii ◽  
Group 1

Abstract BACKGROUND Metabolic navigation in the surgery of malignant gliomas is the most effective way to distinguish the border of the tumor during surgery and achieve a more radical resection, and as a result, to increase the recurrence interval and increase the life expectancy. MATERIAL AND METHODS A comparative analysis of fluorescent navigation was carried out in 50 patients (group 2) with glioma of a high degree of anaplasia, who were treated at the Department of Neurooncology of the A.L. prof. A.L. Polenov. In 25 patients (group 1), chlorin E6 1 mg / kg intravenously was used as a fluorescence inducer, the other 25 patients (group 2) received 5 ALA 20 mg / kg orally. Each group included 10 patients with Grade III anaplasia and 15 patients with Grade IV anaplasia. Both groups were statistically representative (p&gt; 0.05). RESULTS For surgery of grade III glioma, the sensitivity of the method was 83.3% (chlorin E6), 82.9% (5ALA); specificity 66.7% (chlorin E6), 65.4% (5ALA). For grade IV glioma surgery, the sensitivity of the method is 87.5% (chlorin E6), 87.7% (5ALA); specificity - 85.7% (chlorin E6), 85.3% (5ALA). CONCLUSION Statistical analysis showed comparable high efficacy of the drugs in the surgery of malignant gliomas. The sensitivity and specificity of the method for fluorescent preparations of chlorin E6 and 5 ALA showed no statistically significant difference in the achievement of the result (p&gt; 0.05)

Study of clinical and morphological features of postoperative nasal septum perforations

2021 ◽  
Vol 20 (3) ◽  
pp. 64-69
Author(s):  
I. I. Morozov ◽  
◽  
N. S. Grachev ◽  
Keyword(s):  
Nasal Septum ◽  
Clinical Manifestations ◽  
Morphological Features ◽  
Tissue Elasticity ◽  
Cytological Picture ◽  
Group 3 ◽  
Group 2 ◽  
High Degree ◽  
Choice Of Technique ◽  
Group 1

The literature provides many ways to close perforations of the nasal septum (NS), there is no differential approach to the choice of technique depending on the etiological factor. Objective: to study the clinical and morphological features of tissues at the edges of postoperative nasal septum perforations (PNSP) to substantiate the choice of the optimal surgical technique. Materials and methods. 52 patients are divided into 3 groups in accordance with the area (S) of PNSP: 1st S < 1 cm2 (10%); 2nd S 1–2 cm2 (75%), 3rd S > 2 cm2 (15%). In group 2, the subgroups are: 2A – PNSP without curvature of the NS (CNS) (52%); 2B – PNSP with CNS (48%). The state of the mucous membrane (MM) and supporting tissues at the edges of the PNSP, the results of a cytological study from the edges of the PNSP, and specific complaints of the patients were evaluated. Results: In group 1 and 2 at the edges of the PNSP, there was a significant decrease in tissue elasticity compared with group 3, indicating a deficit in supporting tissues (p < 0.05). The ratio of the area of the defect of supporting tissues and PNSP in group 1 was 1 to 3.5, in group 2 – 1 to 1.5, in group 3 – 1 to 1.1. A high degree of elasticity of the posterior edge of PNSP is accompanied by pronounced clinical manifestations, regardless of the size of PNSP, and is confirmed by the cytological picture of inflammation (p <0.01). The presence of CNS enhances the clinical manifestations of PNSPI (p < 0.05). Conclusion: the structure of the edges of PNSP forms the clinical picture of the disease. When choosing a closure method for PNSP, the surgeon must solve the following problems: the size of the NS defect required for replacement is determined not so much by the dimensions of the PNSP as the area of the defect in the supporting tissues of the NS; with a deficit of local tissues, it is advisable to additionally use grafts; MM in the area of the posterior and lower edges has pronounced signs of inflammation, these tissues should be removed during the operation.

Ratings of the Speed and Efficiency of Work by Untrained Observers

1984 ◽  
Vol 58 (1) ◽  
pp. 275-278
Author(s):  
Michael T. Swanston ◽  
Richard H. Crowder
Keyword(s):  
Magnitude Estimation ◽  
Power Law ◽  
Performance Rating ◽  
Or Efficiency ◽  
Estimation Procedures ◽  
Speed Group ◽  
Training Film ◽  
Group 2 ◽  
High Degree ◽  
Group 1

Two groups of untrained observers rated scenes of work from a performance-rating training film, for either speed (Group 1) or efficiency (Group 2). Standard magnitude-estimation procedures were employed, and it was found that both speed and efficiency were rateable stimulus dimensions, giving rise to consistent judgments. When plotted against the ratings of trained practitioners, the power-law exponents were 1.7 for speed and 3.0 for efficiency. The latter value suggests a high degree of sensitivity to small perceived changes in this dimension, although its objective correlates remain to be established.

scholarly journals GIARDIASIS IN THE KRASNODAR REGION IN THE PERIOD FROM 2013–2018

2019 ◽  
pp. 719-723
Author(s):  
Shipkova ◽  
Moroz ◽  
Malgina
Keyword(s):  
Statistical Data ◽  
Peak Incidence ◽  
The Third ◽  
Number Of Patients ◽  
Group 3 ◽  
Krasnodar Region ◽  
The Republic ◽  
Group 2 ◽  
Low Incidence ◽  
Group 1

The analysis of statistical data of the Federal service of state statistics of Krasnodar region and the Republic of Adygea to the extent of years 2013–2018. We analyzed three groups of people of different ages. Group 1: children up to 14 years old; group 2: teenagers 15–17 years old; group 3: adults of 18 years and older. So, in the first group for one thousand examined 55.1 patients were revealed in 2013; in 2014 – 55.8; in 2016 – 51.2; in 2018 – 51.8. From these data it can be seen that the peak incidence was in 2014, then there is a decline, and in 2016 the number of patients with giardiasis among the child population begins to increase. In the second group, the low incidence is shown in 2013 – 26.8 people per one thousand examined, in 2015 – 27.4; in 2016. – 32.4, i.e. peak of invasion, in 2017 – 31.2; in 2018 – 28.5, that is, there is an increase in morbidity in 2015, 2016 and then a decline in the incidence of giardiasis. In the third group, the calculation led to a hundred thousand surveyed, and the growth of the infestation was observed; in 2016 – 10.2 i.e., the peak of cases of giardiasis, followed by a slight decline. In 2017 – 9.0; in 2018 - 8.0. From the above data we can see that the incidence of children's population is much higher than that of adolescents and much lower in the adult generation.

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