scholarly journals Population Characteristics of the Mid-Littoral Chthamalid Barnacle C. stellatus (Poli, 1791) in Eastern Mediterranean (Central Greece)

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3304
Author(s):  
Dimitris Klaoudatos ◽  
Zoi Kotsiri ◽  
Nikos Neofitou ◽  
Alexios Lolas ◽  
Dimitris Vafidis
Keyword(s):  
Eastern Mediterranean ◽  
Age Groups ◽  
Wave Exposure ◽  
Growth Patterns ◽  
Population Characteristics ◽  
Anthropogenic Pressure ◽  
Allometric Relationships ◽  
Morphometric Characteristics ◽  
Central Greece ◽  
Key Space

Barnacles are key space-occupiers in rocky shore communities on European coasts. Barnacles of the species Chthamalus stellatus (Poli, 1791) were collected between June 2014 and May 2015 from two sites, two stations per each site with varying degree of exposure to wave action and anthropogenic pressure (trampling), in the Eastern Mediterranean (Pagasitikos Gulf, Central Greece). This study addresses a knowledge gap in population characteristics of C. stellatus populations in the Eastern Mediterranean, assessing population structure and allometric relationships. Patterns of distribution and abundance (density and percentage cover) were studied both temporally (seasonally) and spatially (water level and site). Morphometric characteristics exhibited spatiotemporal variation. Population density was significantly higher at the site with higher wave exposure. The population cover exhibited high levels of similarity among shore levels, both spatially and temporally. Spatial distribution exhibited a clumped pattern of dispersion in autumn, winter, and spring, mainly in the sheltered site. Six dominant age groups were identified, with the dominant cohort in the third-year class. Significant negative allometric relationships were exhibited between all morphometric characteristics. Differences in growth patterns among populations were indicated, with a higher rate of growth at the site of lower wave exposure.

scholarly journals Population Characteristics of the Limpet Patella caerulea (Linnaeus, 1758) in Eastern Mediterranean (Central Greece)

Water ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 1186
Author(s):  
Dimitris Vafidis ◽  
Irini Drosou ◽  
Kostantina Dimitriou ◽  
Dimitris Klaoudatos
Keyword(s):  
Eastern Mediterranean ◽  
Spatial Relationship ◽  
Growth Patterns ◽  
Population Characteristics ◽  
Human Consumption ◽  
Anthropogenic Pressure ◽  
Allometric Relationships ◽  
Morphometric Characteristics ◽  
Central Greece ◽  
Patella Caerulea

Limpets are pivotal for structuring and regulating the ecological balance of littoral communities and are widely collected for human consumption and as fishing bait. Limpets of the species Patella caerulea were collected between April 2016 and April 2017 from two sites, and two samplings per each site with varying degree of exposure to wave action and anthropogenic pressure, in Eastern Mediterranean (Pagasitikos Gulf, Central Greece). This study addresses a knowledge gap on population characteristics of P. caerulea populations in Eastern Mediterranean, assesses population structure, allometric relationships, and reproductive status. Morphometric characteristics exhibited spatio-temporal variation. Population density was significantly higher at the exposed site. Spatial relationship between members of the population exhibited clumped pattern of dispersion during spring. Broadcast spawning of the population occurred during summer. Seven dominant age groups were identified, with the dominant cohort in the third-year class. Significant negative allometric relationships were exhibited between morphometric characteristics. Differences in growth patterns among populations were indicated.

Size-At-Age Variability and Sexual Dimorphism of Morphometric Characteristics in the Late Ontogenesis of the Marsh Frog, Pelophylax Ridibundus (Anura, Ranidae), from Terrytory of Crimea

2019 ◽  
Vol 53 (4) ◽  
pp. 325-334
Author(s):  
V. N. Peskov ◽  
N. A. Petrenko ◽  
V. Yu. Reminnyi
Keyword(s):  
Age Groups ◽  
The Body ◽  
Adult Males ◽  
Morphometric Characteristics ◽  
Morphometric Characters ◽  
Mean Values ◽  
Marsh Frog ◽  
Males And Females ◽  
Size At Age ◽  
Linear Body

Abstract We study size-at-age and sexual variability of morphometric characteristics of the marsh frog. According to the size of the body, males were divided into three size-age groups (juvenis, subadultus, adultus), females — into four groups (juvenis, subadultus, adultus, adultus-I). We found that the chronological age of frogs (skeletochronology) does not always correspond to their biological age (size and proportions of the body). We noted that the semi-adult males are reliably larger than females by mean values of 26 studied morphometric characters. Males and females of “adultus” group do not differ by linear body size, significant differences were found in body proportions (7 characters). For the females of “adultus-I” group, the mean values of 26 characters are significantly larger than for “adultus” males. The results of our study showed that with the age of the marsh frog, the level of exhibition, directionality and structure of morphometric sex differences changes.

scholarly journals Mobility Patterns in Different Age Groups in Japan during the COVID-19 Pandemic: a Small Area Time Series Analysis through March 2021

2021 ◽  
Author(s):  
Shuhei Nomura ◽  
Yuta Tanoue ◽  
Daisuke Yoneoka ◽  
Stuart Gilmour ◽  
Takayuki Kawashima ◽  
...  
Keyword(s):  
Care Delivery ◽  
Human Mobility ◽  
Age Groups ◽  
Virus Transmission ◽  
Initial Response ◽  
Health Care Delivery System ◽  
Population Characteristics ◽  
Mobility Patterns ◽  
Mobility Data ◽  
The Status

AbstractIn the COVID-19 era, movement restrictions are crucial to slow virus transmission and have been implemented in most parts of the world, including Japan. To find new insights on human mobility and movement restrictions encouraged (but not forced) by the emergency declaration in Japan, we analyzed mobility data at 35 major stations and downtown areas in Japan—each defined as an area overlaid by several 125-meter grids—from September 1, 2019 to March 19, 2021. Data on the total number of unique individuals per hour passing through each area were obtained from Yahoo Japan Corporation (i.e., more than 13,500 data points for each area). We examined the temporal trend in the ratio of the rolling seven-day daily average of the total population to a baseline on January 16, 2020, by ten-year age groups in five time frames. We demonstrated that the degree and trend of mobility decline after the declaration of a state of emergency varies across age groups and even at the subregional level. We demonstrated that monitoring dynamic geographic and temporal mobility information stratified by detailed population characteristics can help guide not only exit strategies from an ongoing emergency declaration, but also initial response strategies before the next possible resurgence. Combining such detailed data with data on vaccination coverage and COVID-19 incidence (including the status of the health care delivery system) can help governments and local authorities develop community-specific mobility restriction policies. This could include strengthening incentives to stay home and raising awareness of cognitive errors that weaken people's resolve to refrain from nonessential movement.

Maturation of the anterior petrous apex: surgical relevance for performance of the middle fossa transpetrosal approach in pediatric patients

2021 ◽  
pp. 1-7
Author(s):  
Robert C. Rennert ◽  
Michael G. Brandel ◽  
Jeffrey A. Steinberg ◽  
David D. Gonda ◽  
Rick A. Friedman ◽  
...  
Keyword(s):  
Pediatric Patients ◽  
Internal Carotid ◽  
Age Groups ◽  
Internal Auditory Canal ◽  
Petrous Bone ◽  
Growth Patterns ◽  
Ct Scans ◽  
Petrous Apex ◽  
Middle Fossa ◽  
Region Growth

OBJECTIVE The middle fossa transpetrosal approach to the petroclival and posterior cavernous sinus regions includes removal of the anterior petrous apex (APA), an area well studied in adults but not in children. To this end, the authors performed a morphometric analysis of the APA region during pediatric maturation. METHODS Measurements of the distance from the clivus to the internal auditory canal (IAC; C-IAC), the distance of the petrous segment of the internal carotid artery (petrous carotid; PC) to the mesial petrous bone (MPB; PC-MPB), the distance of the PC to the mesial petrous apex (MPA; PC-MPA), and the IAC depth from the middle fossa floor (IAC-D) were made on thin-cut CT scans from 60 patients (distributed across ages 0–3, 4–7, 8–11, 12–15, 16–18, and > 18 years). The APA volume was calculated as a cylinder using C-IAC (length) and PC-MPB (diameter). APA pneumatization was noted. Data were analyzed by laterality, sex, and age. RESULTS APA parameters did not differ by laterality or sex. APA pneumatization was seen on 20 of 60 scans (33.3%) in patients ≥ 4 years. The majority of the APA region growth occurred by ages 8–11 years, with PC-MPA and PC-MPB increasing 15.9% (from 9.4 to 10.9 mm, p = 0.08) and 23.5% (from 8.9 to 11.0 mm, p < 0.01) between ages 0–3 and 8–11 years, and C-IAC increasing 20.7% (from 13.0 to 15.7 mm, p < 0.01) between ages 0–3 and 4–7 years. APA volume increased 79.6% from ages 0–3 to 8–11 years (from 834.3 to 1499.2 mm3, p < 0.01). None of these parameters displayed further significant growth. Finally, IAC-D increased 51.1% (from 4.3 to 6.5 mm, p < 0.01) between ages 0–3 and adult, without significant differences between successive age groups. CONCLUSIONS APA development is largely complete by the ages of 8–11 years. Knowledge of APA growth patterns may aid approach selection and APA removal in pediatric patients.

scholarly journals Household saving in Australia

2015 ◽  
Vol 15 (2) ◽  
Author(s):  
Richard Finlay ◽  
Fiona Price
Keyword(s):  
Financial Crisis ◽  
Age Groups ◽  
Single Parent ◽  
Population Characteristics ◽  
Income Growth ◽  
Highly Educated ◽  
Household Saving ◽  
Future Income ◽  
Saving Behavior ◽  
Migrant Households

AbstractThis paper investigates household saving behavior in Australia, as well as the drivers behind the recent rise in the aggregate household saving ratio. Our results explaining differences in saving behavior across households are consistent with theory and previous findings. As might be expected, households’ saving ratios tend to increase with income, but decrease with wealth and gearing. More at-risk households such as single-parent and migrant households tend to save more than other households, all else being equal. While saving differs substantially across age groups we find that, at least in part, this reflects differing circumstances. Our results suggest that the rise in household saving between 2003/2004 and 2009/2010 was driven by changes in behavior rather than changes in population characteristics: in particular, more educated households, as well as households with high debt and/or wealth increased their propensity to save. Our interpretation of these results is that a reduction in future income growth expectations for more highly educated households after the financial crisis, and an associated effort to rebuild wealth and repay debt, drove to the aggregate rise in household saving.

scholarly journals Data Atlas of Byzantine and Ottoman Material Culture: Archiving Medieval and Post-Medieval Archaeological Fieldwork Data from the Eastern Mediterranean (600–2000 ad), Phase 1

2019 ◽  
Vol 4 (1) ◽  
pp. 27-38
Author(s):  
J.A.C. Vroom
Keyword(s):  
Material Culture ◽  
Eastern Mediterranean ◽  
Phase 1 ◽  
Rural Settlements ◽  
Western Turkey ◽  
Central Greece ◽  
Eastern Turkey ◽  
Urban Sites

This Data Atlas of Byzantine and Ottoman Material Culture involves the archiving, storing and making accessible of Medieval and Post-Medieval data from several archaeological missions in the eastern Mediterranean (period 600–2000 ad). The data mainly originate from pottery studies carried out during excavations in four major urban centres and during two surface surveys in their respective surroundings. The urban sites are Butrint in southern Albania, Athens in central Greece, Ephesus in western Turkey and Tarsus in eastern Turkey, the material culture of which is studied in relation to archaeological finds from rural settlements and towns in their hinterlands (e.g., Aetolia, Boeotia).

scholarly journals A Predictive Model for Height Tracking in an Adult Male Population in Bangladesh to Reduce Input Errors

2020 ◽  
Vol 17 (5) ◽  
pp. 1806
Author(s):  
Mehdi Hasan ◽  
Fumihiko Yokota ◽  
Rafiqul Islam ◽  
Kenji Hisazumi ◽  
Akira Fukuda ◽  
...  
Keyword(s):  
Error Detection ◽  
Age Groups ◽  
Growth Patterns ◽  
Height Loss ◽  
Age Group ◽  
Male Population ◽  
Server Side ◽  
Healthcare Data ◽  
Acceptable Range ◽  
Remote Healthcare

The advancement of ICT and affordability of medical sensors enable healthcare data to be obtained remotely. Remote healthcare data is erroneous in nature. Detection of errors for remote healthcare data has not been significantly studied. This research aims to design and develop a software system to detect and reduce such healthcare data errors. Enormous research efforts produced error detection algorithms, however, the detection is done at the server side after a substantial amount of data is archived. Errors can be efficiently reduced if the suspicious data can be detected at the source. We took the approach to predict acceptable range of anthropometric data of each patient. We analyzed 40,391 records to monitor the growth patterns. We plotted the anthropometric items e.g., Height, Weight, BMI, Waist and Hip size for males and females. The plots show some patterns based on different age groups. This paper reports one parameter, height of males. We found three groups that can be classified with similar growth patterns: Age group 20–49, no significant change; Age group 50–64, slightly decremented pattern; and Age group 65–100, a drastic height loss. The acceptable range can change over time. The system estimates the updated trend from new health records.

Diarrhoea morbidity and mortality in older children, adolescents, and adults

2010 ◽  
Vol 138 (9) ◽  
pp. 1215-1226 ◽  
Author(s):  
C. L. FISCHER WALKER ◽  
R. E. BLACK
Keyword(s):  
Eastern Mediterranean ◽  
Age Groups ◽  
Eastern Mediterranean Region ◽  
Mortality Rates ◽  
Incidence Rates ◽  
Morbidity And Mortality ◽  
Mortality Data ◽  
Older Children ◽  
Incidence And Mortality ◽  
Adolescents And Adults

SUMMARYDiarrhoea is a leading cause of morbidity and mortality yet diarrhoea specific incidence and mortality rates for older children, adolescents, and adults have not been systematically calculated for many countries. We conducted a systematic literature review to generate regional incidence rates by age and to summarize diarrhoea specific mortality rates for regions of the world with inadequate vital registration data. Diarrhoea morbidity rates range from 29·9 episodes/100 person-years for adults in the South East Asian region to 88·4 episodes/100 person-years in older children in the Eastern Mediterranean region and have remained unchanged in the last 30 years. Diarrhoea mortality rates decline as the child ages and remain relatively constant during adulthood. These data are critical for improving estimates worldwide and further highlight the need for improved diarrhoea specific morbidity and mortality data in these age groups.

MARBLE SCULPTURES FROM PHTHIOTIS IN THE LAMIA ARCHAEOLOGICAL MUSEUM

2013 ◽  
Vol 108 ◽  
pp. 275-321
Author(s):  
Iphigeneia Leventi
Keyword(s):  
Formal Language ◽  
Eastern Mediterranean ◽  
Asia Minor ◽  
Small Scale ◽  
Hellenistic Period ◽  
Central Greece ◽  
Aegean Islands ◽  
Marble Sculptures ◽  
Eros And Psyche ◽  
Greek East

Marble statuettes, now in the Lamia Archaeological Museum, that date to the Classical and above all the Hellenistic periods, and a Hellenistic votive relief depicting Herakles are presented here. This study investigates the relations between the local workshop in central Greece which produced them and the major Classical and Hellenistic sculptural centres of Athens and of the Aegean islands, Asia Minor and the kingdoms of the Greek East generally. A marble statuette of a goddess which may represent Artemis from Melitaia, and a marble statuette of a seated girl of unknown provenance are dated to the Classical period. The subjects portrayed in the Late Hellenistic material show a typical repertory, marble statuettes of Aphrodite or Aphrodite-like figures, and a statuary group of Eros and Psyche in marble, unusual for this period. The ways in which the local sculptors of the Late Hellenistic period in the area of modern Phthiotis adopted the typological and stylistic trends current in the great cosmopolitan centres are a major concern here. In the Hellenistic period, the production of marble statuettes for making offerings at public and domestic sanctuaries and for decorating opulent villas was in vogue, and a common formal language was created especially for small-scale sculpture in the eastern Mediterranean and the new art markets of Italy. The vehicles by which these artistic influences were transmitted to the sculptural production of central Greece will also be investigated.

scholarly journals Assessment of the sardine (Sardina pilchardus Walbaum, 1792) fishery in the eastern Mediterranean basin (North Aegean Sea)

2011 ◽  
Vol 12 (2) ◽  
pp. 333 ◽  
Author(s):  
K. ANTONAKAKIS ◽  
M. GIANNOULAKI ◽  
A. MACHIAS ◽  
S. SOMARAKIS ◽  
S. SANCHEZ ◽  
...  
Keyword(s):  
Mediterranean Basin ◽  
Eastern Mediterranean ◽  
Population Analysis ◽  
Aegean Sea ◽  
Population Characteristics ◽  
Current Status ◽  
Sardina Pilchardus ◽  
North Aegean ◽  
North Aegean Sea ◽  
The Impact

The aim of this study was to describe the biometric characteristics of the European sardine (Sardina pilchardus) catches and assess the current status of sardine stock in North Aegean Sea based on population characteristics and abundance trends. The stock was dominated by age groups 1 and 2, not exceeding age group 4. The sardine stock in this area was assessed through an Integrated Catch-at-Age model which implements a separable Virtual Population Analysis on catch at age data with weighted tuning indices. Sardine landings data derived from the commercial purse seine fishery over the period 2000-2008 were combined with the age structure of the stock as resulted from fisheries independent acoustic surveys. Sensitivity analysis of the impact of natural mortality values on stock assessment results was applied. Additionally forecast of the sardine population parameters and catches under different exploitation scenarios was implemented in a medium term basis. Results indicated that the North Aegean Sea sardine stock is considered fully exploited with the fishery operating close but over the empirical exploitation level for sustainability. Finally, the status of the sardine stock in N. Aegean Sea is discussed in relation to the sardine stocks from the western and the central Mediterranean basin.

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