scholarly journals Analysis of the impact of injuries caused by the influence of mechanical and abiotic factors on the occurrence of harmful fungal organisms

2012 ◽  
pp. 97-109
Author(s):  
Miroslava Marković ◽  
Snežana Rajković ◽  
Radoslav Rajković
Keyword(s):  
Abiotic Factors ◽  
Mechanical Damage ◽  
Beech Forest ◽  
Health Condition ◽  
Pathogenic Microorganisms ◽  
Fungal Organisms ◽  
Live Tree ◽  
The Impact ◽  
Correlation Link ◽  
Tree Injuries

The research described in this paper is focused on the occurrence of pathogenic microorganisms on beech trees relative to the presence of tree injuries, with the aim to ensure protection and preservation of this species in Serbia. The research was conducted in Eastern Serbia, in a hillside beech forest Fagetum moesiacae submontanum of generative origin. The testing was carried out on two sites over 51 testing plots, with a total of 829 trees and 21 species of identified fungi. On the first site it was found that the appearance of fungi primarily depends on the presence of mechanical damage on trees (as much as 73.46%), while the presence of abiotic damage has almost no bearing (only 3.21%). On the second site there was a strong correlation link between the occurrence of fungi and presence of mechanical damage - 51.88%, as well as between the fungi and abiotic damage - 47.96%. The health condition of high beech stands was found to be heavily dependent on careful and proper manipulation during harvesting, while each injury inflicted on a beech live tree during logging opens the door to infection with pathogenic microorganisms.

ENVIRONMENTAL FACTORS’ INFLUENCE ON THE EMBRYO DEVELOPMENT, ITS IMMUNE STATUS AND THE RESULTS OF INCUBATION

2020 ◽  
Vol 15 (6) ◽  
pp. 834-840
Author(s):  
F.I. Suleymanov ◽  
◽  
A.S. Migachev ◽  
Keyword(s):  
Immune System ◽  
Immune Status ◽  
Oxygen Deficiency ◽  
Abiotic Factors ◽  
Mechanical Damage ◽  
Correct Selection ◽  
Chicken Embryos ◽  
Training Costs ◽  
Additional Equipment ◽  
The Impact

The article is devoted to the study of the problem of external factors influence on the development of the embryo and the immune status of chickens. This is primarily due to the fact that the sensitivity of embryos to the impact of various damaging agents of the external environment, primarily abiotic factors, such as oxygen deficiency, sharp temperature fluctuations beyond the optimum, mechanical damage and other influences, affect the course of morphogenetic processes, disrupting the rate of development of individual organs, causing the appearance of malformations of embryos and, in many cases, leading to death. The object of the study is chicken embryos and chickens up to ten days old. The aim of the work was to develop the most optimal incubation technology that would help stimulate the development of chicken embryos and did not require additional equipment and training costs. The work consists of an introduction, article materials, conclusions and a list of references. The introduction includes the relevance of the research, its goals and objectives, object, subject of research and research methods. The first section describes research on the correct selection, storage of eggs and the correct use of the incubator. The second section contains data on the study of the influence of various factors on the immune system of chicken embryos and chickens. In general, the analysis of factors given in the literature allows us to conclude about the influence of these factors on the development of chickens, increasing their safety and productivity. The material of the article shows that, while studying these factors, they primarily affect the immune system.

Characterizing the impact of recovering sea otters on commercially important crabs in California estuaries

2020 ◽  
Vol 655 ◽  
pp. 123-137
Author(s):  
TM Grimes ◽  
MT Tinker ◽  
BB Hughes ◽  
KE Boyer ◽  
L Needles ◽  
...  
Keyword(s):  
Abiotic Factors ◽  
Sea Otter ◽  
Dungeness Crab ◽  
Sea Otters ◽  
Elkhorn Slough ◽  
Enhydra Lutris Nereis ◽  
Crab Abundance ◽  
Population Sizes ◽  
Commercially Important ◽  
The Impact

Protective legislation and management have led to an increase in California’s sea otter Enhydra lutris nereis population. While sea otter recovery has been linked to ecosystem benefits, sea otter predation may negatively affect commercially valuable species. Understanding the potential influence of sea otters is of particular importance as their range expands into estuaries that function as nurseries for commercially valuable species like Dungeness crab Metacarcinus magister. We consider how sea otter predation has affected the abundance and size of juvenile Dungeness crab in Elkhorn Slough, California, USA, and analyzed cancrid crab abundance and size across 4 California estuaries with and without sea otters to understand how biotic and abiotic factors contribute to observed variation in crab size and abundance. We compared trends in southern sea otters relative to Dungeness crab landings in California to assess whether increasing sea otter abundance have negatively impacted landings. In Elkhorn Slough, juvenile Dungeness crab abundance and size have declined since 2012, coinciding with sea otter population growth. However, the impact of sea otters on juvenile Dungeness crab size was habitat-specific and only significant in unvegetated habitat. Across estuaries, we found that cancrid crab abundance and size were negatively associated with sea otter presence. While abiotic factors varied among estuaries, these factors explained little of the observed variation in crab abundance or size. Although we found evidence that sea otters can have localized effects on cancrid crab populations within estuaries, we found no evidence that southern sea otters, at recent population sizes, have negatively impacted Dungeness crab landings in California from 2000-2014.

Changes in the Population Density of Pathogenic Microorganisms in Response to the Allelopathic Effect of Thypha Latifolia

2014 ◽  
Vol 1 (1) ◽  
pp. 31-36 ◽  
Author(s):  
O. Zhukorskiy ◽  
O. Gulay ◽  
V. Gulay ◽  
N. Tkachuk
Keyword(s):  
Cell Density ◽  
Allelopathic Effect ◽  
Pathogenic Microorganisms ◽  
Sterile Water ◽  
Erysipelothrix Rhusiopathiae ◽  
Pathogenic Leptospira ◽  
Favorable Conditions ◽  
And Control ◽  
The Impact ◽  
Control Samples

Aim. To determine the response of the populations of Erysipelothrix rhusiopathiae and Leptospira interrogans pathogenic microorganisms to the impact of broadleaf cattail (Thypha latifolia) root diffusates. Methods. Aqueous solutions of T. latifolia root diffusates were sterilized by vacuum fi ltration through the fi lters with 0.2-micron pore diameter. The experimental samples contained cattail secretions, sterile water, and cultures of E. rhusiopathiae or L. interrogans. The same amount of sterile water, as in the experimental samples, was used for the purpose of control, and the same quantity of microbial cultures was added in it. After exposure, the density of cells in the experimental and control samples was determined. Results. Root diffusates of T. latifolia caused an increase in cell density in the populations of E. rhusiopathiae throughout the whole range of the studied dilutions (1:10–1:10000). In the populations of the 6 studied serological variants of L. interrogans spirochetes (pomona, grippotyphosa, copenhageni, kabura, tarassovi, canicola), the action of broadleaf cattail root diffusates caused the decrease in cell density. A stimulatory effect was marked in the experimental samples of the pollonica serological variant of leptospira. Conclusions. The populations of E. rhusiopathiae and L. interrogans pathogenic microorganisms respond to the allelopathic effect of Thypha latifolia by changing the cell density. The obtained results provide the background to assume that broadleaf cattail thickets create favorable conditions for the existence of E. rhusiopathiae pathogen bacteria. The reduced cell density of L. interrogans in the experimental samples compared to the control samples observed under the infl uence of T. latifolia root diffusates suggests that reservoirs with broadleaf cattail thickets are marked by the unfavorable conditions for the existence of pathogenic leptospira (except L. pollonica).

scholarly journals OP0082-PARE THE EFFECT COVID-19 HAS ON THE MENTAL HEALTH OF PEOPLE LIVING WITH RHEUMATIC DISEASES. FROM DATA TO INTERVENTIONS.

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 44-45
Author(s):  
S. Mingolla ◽  
A. Celano ◽  
M. Santopietro
Keyword(s):  
Mental Health ◽  
Rheumatic Diseases ◽  
Rare Diseases ◽  
Psychological Impact ◽  
Well Being ◽  
Total Sample ◽  
Support Service ◽  
Health Condition ◽  
National Association ◽  
The Impact

Background:Covid-19 has had an important impact on the mental health conditions of over 5 million Italians suffering from one of the over 150 rheumatic diseases. In order to understand the psychological impact of the Covid-19 emergency and the restrictions imposed to counter it, the Italian National Association of People with Rheumatic and Rare Diseases – APMARR APS launched the research “Living with a rheumatic pathology”.Objectives:Gather data directly from Italian patients about the impact of the COVID-19 and consequent restrictions on their mental health and feelings; evaluate the most effective intervention to be implemented to face the pandemic by Patients organization.Methods:A qualitative-quantitative survey was carried out through a questionnaire administered throughout the national territory to a sample of N = 1,001 people. The people invited to complete the questionnaire were women (55,9%) and men (44,1%), aged 18-85 years (age 18-41=26,7%; age 42-65=64%; age >65=9,3%) with at least one rheumatic pathology. The questionnaire was made up of 39 questions, of which 29 were closed and 10 were open. For the administration of the questionnaires, the CAWI (Computer Aided Web Interview) methodology of on-line survey was used. The 1,001 interviews were carried out from 7 to 14 August 2020.Results:More than 4 out of 10 people (total sample 44.2%; male 60%, female 35,7%; age 18-41=39,1%; age 42-65=45,9%; age >65 = 50%) declared that the emergency period has somehow caused a worsening of their health condition. People declared that the deterioration of their health is due to the emergency period for the following reasons: 1) Psychological: such as stress and anxiety: “Too much stress and anxiety made the symptoms worse.”; “The stress of the quarantine affected my problem”; “Insomnia. Nervousness. General ailments. Depression. Strong stress” 2) Inability to perform physiotherapy and motor activities due to the lockdown 3) Postponement of examinations, visits and checks 4) remote working, in some cases described as harmful for people’s mental and physical health: “Due to Covid19 I had to do remote working and I worked even 12 hours a day including holidays to the detriment of my family life”.Furthermore, from January 31, 2020 a significant increase emerged in communication problems with rheumatology specialist compared to the period before the emergency due to Covid-19. The sharp increase may be due to the situation of severe psychological stress to which also the doctors were subjected in the emergency phase: people could not find the comfort of being empathically listened to.Conclusion:The research shows that the most frequent symptoms among people with rheumatic diseases were depression and high levels of anxiety due to strong emotional stress. Psychological malaise caused direct effects in worsening the symptoms of rheumatic disease as well as other related effects, for example, insomnia. The forced isolation due to the lockdown has made people lack the social support that is fundamental for the psychological well-being especially for those suffering from some chronic pathology. Starting from the data collected, APMARR promptly activated a completely free psychological support service with 6 professional psychologists, two of them specialized in emergency psychology. The service is accessible online and is still going on for all who are not able to overcome the anxiety and fear related to the pandemic and its evolution. Thousands of accesses to the service have been measured to date.References:S Mingolla1, A Celano1, M Santopietro2[1]NATIONAL ASSOCIATION OF PEOPLE WITH RHEUMATIC AND RARE DISEASES - APMARR APS[2]WeResearch. Ricerche di marketingDisclosure of Interests:None declared

scholarly journals Parasitism of Aedes albopictus by Ascogregarina taiwanensis lowers its competitive ability against Aedes triseriatus

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Emma Stump ◽  
Lauren M. Childs ◽  
Melody Walker
Keyword(s):  
Population Dynamics ◽  
Competitive Advantage ◽  
Aedes Albopictus ◽  
Abiotic Factors ◽  
Mosquito Species ◽  
Disease Spread ◽  
Aedes Triseriatus ◽  
La Crosse Virus ◽  
The Impact ◽  
Ascogregarina Taiwanensis

Abstract Background Mosquitoes are vectors for diseases such as dengue, malaria and La Crosse virus that significantly impact the human population. When multiple mosquito species are present, the competition between species may alter population dynamics as well as disease spread. Two mosquito species, Aedes albopictus and Aedes triseriatus, both inhabit areas where La Crosse virus is found. Infection of Aedes albopictus by the parasite Ascogregarina taiwanensis and Aedes triseriatus by the parasite Ascogregarina barretti can decrease a mosquito’s fitness, respectively. In particular, the decrease in fitness of Aedes albopictus occurs through the impact of Ascogregarina taiwanensis on female fecundity, larval development rate, and larval mortality and may impact its initial competitive advantage over Aedes triseriatus during invasion. Methods We examine the effects of parasitism of gregarine parasites on Aedes albopictus and triseriatus population dynamics and competition with a focus on when Aedes albopictus is new to an area. We build a compartmental model including competition between Aedes albopictus and triseriatus while under parasitism of the gregarine parasites. Using parameters based on the literature, we simulate the dynamics and analyze the equilibrium population proportion of the two species. We consider the presence of both parasites and potential dilution effects. Results We show that increased levels of parasitism in Aedes albopictus will decrease the initial competitive advantage of the species over Aedes triseriatus and increase the survivorship of Aedes triseriatus. We find Aedes albopictus is better able to invade when there is more extreme parasitism of Aedes triseriatus. Furthermore, although the transient dynamics differ, dilution of the parasite density through uptake by both species does not alter the equilibrium population sizes of either species. Conclusions Mosquito population dynamics are affected by many factors, such as abiotic factors (e.g. temperature and humidity) and competition between mosquito species. This is especially true when multiple mosquito species are vying to live in the same area. Knowledge of how population dynamics are affected by gregarine parasites among competing species can inform future mosquito control efforts and help prevent the spread of vector-borne disease.

scholarly journals Engaging patients: how to speak so patients want to listen

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
S Rubinelli
Keyword(s):  
Health Professional ◽  
Lived Experience ◽  
Health Information ◽  
Health Professionals ◽  
Health Condition ◽  
Public Health Institutions ◽  
Health Institutions ◽  
Basic Approaches ◽  
The Impact

Abstract The paternalistic approach to health professional-patient communication is often no longer successful. The main reasons for this include the fact that trust in medicine and health professionals is no longer taken for granted. In many domains, the concepts of 'expert' and 'science' are in shadow. Moreover, patients can access all sorts of health information, including information that is or seems inconsistent with the advice given by their health professionals. This talk aims to illustrate some basic approaches to communication that can enhance health professional-patient interaction. First, health professionals should consider their communication with patients as a form of persuasion. Persuasion, that does not equal manipulation, is a way to communicate that takes into consideration the knowledge, beliefs, and attitudes of interlocutors. By adopting a person-centered style, health professionals should present their advice by contextualizing it into the emotional and cognitive setting of the patients. Second, communication should consider the lived experience of patients, that is the impact that a health condition or a preventive behavior has on their quality of life and their experience of pleasure. Indeed, managing health conditions is not just applying health advice: it often demands a change in lifestyles that can negatively impact how patients live their lives. Third, health professionals should develop clear strategies to engage with information that patients find from other sources. Health professionals must ask patients if they disagree with them, and to clarify any eventual difference of opinion. The information age has positively favored a democratization of health information. Yet, it imposes that health systems care for their communication. This talk concludes by presenting main evidence from on how to reinforce hospitals, public health institutions, and health services in communication so that patients want to listen.

scholarly journals Parental mental health conditions and use of healthcare services in children the first year of life– a register-based, nationwide study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Signe Heuckendorff ◽  
Martin Nygård Johansen ◽  
Søren Paaske Johnsen ◽  
Charlotte Overgaard ◽  
Kirsten Fonager
Keyword(s):  
Mental Health ◽  
Healthcare Services ◽  
Health Condition ◽  
Health Conditions ◽  
Mental Health Condition ◽  
Parental Mental Health ◽  
Mental Health Conditions ◽  
First Year Of Life ◽  
Paternal Mental Health ◽  
The Impact

Abstract Background Parental mental health conditions have been associated with increased morbidity and use of healthcare services in offspring. Existing studies have not examined different severities of parental mental health conditions, and the impact of paternal mental health has been overlooked. We examined the association between two severities of parental mental health conditions and use of healthcare services for children during the first year of life and explored the impact of both maternal and paternal mental health conditions. Methods This register-based cohort study included all live-born children born in Denmark from 2000 to 2016. Information on socioeconomics, diagnoses, drug prescriptions, and healthcare contacts was extracted from nationwide public registries. Parents were grouped according to severity of mental condition based on the place of treatment of the mental health condition. Negative binominal regression analyses were performed to estimate the incidence rate ratio (IRR) of contacts to general practice (GP), out-of-hour medical service, emergency room (ER), and out- and inpatient hospital contacts during the first 12 months of the child’s life. Results The analyses included 964,395 children. Twenty percent of the mothers and 12 % of the fathers were identified with mental health conditions. Paternal mental health conditions were independently associated with increased risk of infant healthcare contacts (GP IRR 1.05 (CI95% 1.04–1.06) and out-of-hour IRR 1.20 (CI95% 1.18–1.22)). Risks were higher for maternal mental health conditions (GP IRR 1.18 (CI95% 1.17–1.19) and out-of-hour IRR 1.39 (CI95% 1.37–1.41)). The risks were even higher if both parents were classified with a mental health condition (GP IRR 1.25 (CI95% 1.23–1.27) and out-of-hour contacts IRR 1.49 (CI95% 1.45–1.54)), including minor mental health condition (GP IRR 1.22 (CI95% 1.21–1.24) and out-of-hour IRR 1.37 (CI95% 1.34–1.41)). This pattern was the same for all types of healthcare contacts. Conclusions Both maternal and paternal mental health conditions, including minor mental health conditions, were associated with increased utilization of healthcare services. Focus on both parents’ mental health conditions (even if minor) may be warranted in service planning.

scholarly journals Places Visited, Maintained, or Abandoned Outside Home: A Community Mobility Need of Older Adults With Dementia

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 673-673
Author(s):  
Isabel Margot-Cattin ◽  
Sophie Gaber ◽  
Nicolas Kuhne ◽  
Camilla Malinowski ◽  
Louise Nygard
Keyword(s):  
Older Adults ◽  
Cognitive Decline ◽  
Health Condition ◽  
Driving Cessation ◽  
Age In Place ◽  
Community Mobility ◽  
People With Dementia ◽  
The Uk ◽  
The Impact

Abstract For older adults to “age in place”, they need to keep engaged and mobile in their communities, whatever their health condition. The impact of age and cognitive decline on community mobility is a growing problem in Europe and worldwide. Engaging in occupations outside home implies being able to get to those places where activities are performed. Yet little is known regarding the types of places visited, maintained or abandoned for older adults with/without dementia. This study addresses community mobility needs through the places people visit, maintain or abandon. People with and without dementia, aged 55+, were interviewed using the Participation in ACTivities and Places OUTside the Home (ACT-OUT) questionnaire across Switzerland (n=70), Sweden (n=69) and the UK (n=128). Results show that people with dementia experience a higher rate of abandonment for more places than regular older adults. Insights about driving cessation and access to travel passes will be presented.

scholarly journals The impact of the health condition of oaks from the Krotoszyn Plateau on the mechanical properties of timber structures

2015 ◽  
Vol 57 (4) ◽  
pp. 224-232
Author(s):  
Jarosław Siwiński ◽  
Katarzyna Kubiak ◽  
Miłosz Tkaczyk ◽  
Anna Mazur ◽  
Ryszard Rekucki
Keyword(s):  
Mechanical Properties ◽  
Health Condition ◽  
Health State ◽  
Timber Structures ◽  
Strength Parameters ◽  
Modified Method ◽  
Strength Tests ◽  
Prior Selection ◽  
The Impact ◽  
Selection Of

Abstract The study was conducted to perform a comparative analysis of the mechanical properties of wood samples derived from oaks in the Krotoszyn Plateau, which depend on the health state of the trees. Strength parameters of oak wood were calculated for selected diseased and healthy trees (according to the Roloff classification). The study was conducted by a modified method described in the standard Polish Norm PN EN 408+ A1: 2012. For testing, prior selection of wood samples showed that more wood samples of diseased trees compared with those of healthy oaks did not fulfil the Polish standard requirements. According to the method used, the average results of strength tests of timber structures from healthy oaks exhibited higher strength parameters than those of the diseased trees.

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