The natural history of mites (Acari: Mesostigmata) associated with the white-spotted sawyer beetle (Coleoptera: Cerambycidae): diversity, phenology, host attachment, and sex bias

2012 ◽  
Vol 144 (5) ◽  
pp. 711-719 ◽  
Author(s):  
Wayne Knee ◽  
Tammy Hartzenberg ◽  
Mark R. Forbes ◽  
Frédéric Beaulieu
Keyword(s):  
Bark Beetles ◽  
Selective Advantage ◽  
Mite Species ◽  
Sex Bias ◽  
Quantitative Investigation ◽  
Male And Female ◽  
Monochamus Scutellatus ◽  
History Of ◽  
Wood Boring ◽  
Horned Beetles

AbstractLittle is known about the acarofauna associated with wood-boring beetles in Canada, including long-horned beetles (Coleoptera: Cerambycidae). Herein, we assessed the prevalence, abundance, diversity, phenology, and attachment location of mesostigmatic mites (Acari: Mesostigmata) associated with Monochamus scutellatus (Say), and tested whether the abundance and prevalence of mites differed between male and female beetles. A total of 176 beetles were collected in two sites in eastern Ontario in 2008 and 2009 using Lindgren funnel traps baited with α-pinene and ethanol lures, and 71% of hosts had mesostigmatic mites. A total of 2486 mites were collected, representing eight species, four genera, and three families (Digamasellidae, Trematuridae, and Melicharidae). Average prevalence was variable across mite species, and the number of mites per infested beetle also varied across species. Many of the mite species collected in this study have been reported from other cerambycid species, as well as from other wood-boring beetles, such as bark beetles. There was no significant sex bias in the abundance or prevalence of mites between male and female M. scutellatus, which suggests that there is no selective advantage for mites to disperse on females. This study represents the first quantitative investigation of the mites associated with M. scutellatus in Canada.

scholarly journals Associations of Phoretic Mites on Bark Beetles of the Genus Ips in the Black Sea Mountains of Turkey

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 516
Author(s):  
Cihan Cilbircioğlu ◽  
Marta Kovač ◽  
Milan Pernek
Keyword(s):  
Black Sea ◽  
Bark Beetles ◽  
Pinus Nigra ◽  
Mite Species ◽  
Tree Bark ◽  
The Black Sea ◽  
Forest Pests ◽  
Larval Stages ◽  
Suitable Habitats ◽  
First Time

Phoretic mites use bark beetles for transportation to new, suitable habitats. Some phoretic mites act as predators and parasitoids of the bark beetles’ immature stages, especially egg and early larval stages, and are potential agents for the biological control of scolytine forest pests. Mites live very frequently in relationships with other invertebrates. Many are found in association with various species of bark beetles. Here, a total of 41 specimens of different bark beetles of the genus Ips (Ips acuminatus, Ips sexdentatus and Ips typographus) were studied for presence, species composition, and abundance of phoretic mites. The beetles were collected on dead wood and parts of tree bark of Pinus nigra, Pinus sylvestris and Picea abies in the Black Sea Mountains in Kastamonu and Artin Province of Turkey. A total of nine mite species were found, including Dendrolaelaps quadrisetus, Ereynetes sp., Histiostoma piceae, Paraleius cf. leontonychus, Pleuronectocelaeno barbara., Proctolaelaps hystricoides, Schizostethus simulatrix, Trichouropoda lamellosa and Uroobovellaipidis. All species are identified for the first time within Turkish fauna.

scholarly journals High level of fatty liver index predicts new onset of diabetes mellitus during a 10-year period in healthy subjects

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yukimura Higashiura ◽  
Masato Furuhashi ◽  
Marenao Tanaka ◽  
Satoko Takahashi ◽  
Masayuki Koyama ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Fatty Liver ◽  
Male And Female ◽  
Nonalcoholic Fatty Liver ◽  
Liver Index ◽  
Fatty Liver Index ◽  
History Of ◽  
Onset Of Diabetes ◽  
High Level ◽  
New Onset

AbstractFatty liver index (FLI), a predictor of nonalcoholic fatty liver disease, has been reported to be associated with several metabolic disorders. This study aimed to evaluate the relationship between FLI and new onset of diabetes mellitus (DM). We investigated the association of FLI with new onset of DM during a 10-year period in subjects who received annual health examinations (n = 28,990). After exclusion of subjects with DM at baseline and those with missing data, a total of 12,290 subjects (male/female: 7925/4365) who received health examinations were recruited. FLI was significantly higher in males than in females. During the 10-year period, DM was developed in 533 males (6.7%) and 128 females (2.9%). Multivariable Cox proportional hazard models with a restricted cubic spline showed that the risk of new onset of DM increased with a higher FLI at baseline in both sexes after adjustment of age, fasting plasma glucose, habits of alcohol drinking and current smoking, family history of DM and diagnosis of hypertension and dyslipidemia at baseline. When the subjects were divided into subgroups according to tertiles of FLI level at baseline (T1–T3) in the absence and presence of impaired fasting glucose (IFG), hazard ratios after adjustment of the confounders gradually increased from T1 to T3 and from the absence to presence of IFG in both male and female subjects. In conclusion, a high level of FLI predicts new onset of DM in a general population of both male and female individuals.

scholarly journals The differential transmissibility of myxoma virus strains of differing virulence grades by the rabbit flea Spilopsyllus cuniculi (Dale)

1975 ◽  
Vol 75 (2) ◽  
pp. 237-247 ◽  
Author(s):  
A. R. Mead-Briggs ◽  
J. A. Vaughan
Keyword(s):  
Host Resistance ◽  
Oryctolagus Cuniculus ◽  
Selective Advantage ◽  
Myxoma Virus ◽  
Laboratory Studies ◽  
Natural Conditions ◽  
Male And Female ◽  
The Mean ◽  
Virus Strains ◽  
Sampling Times

SUMMARYLaboratory studies showed that few rabbit fleas (Spilopsyllus cuniculi (Dale)) transmitted myxomatosis after removal from wild rabbits (Oryctolagus cuniculus (L)) that had been infected for fewer than 10–12 days, irrespective of the virulence of the myxoma virus strain involved. Rabbits infected with fully virulent (Grade I) strains died within 10–15 days and few fleas from these hosts became infective; averaging all the samples taken, 12% of the fleas were infective. Also, few fleas acquired infectivity on individual rabbits which recovered from infection with attenuated strains; the mean was 8% infective. Rabbits which died between 17 and 44 days after infection had higher proportions of infective fleas at all sampling times; the mean was 42% infective. Male and female fleas transmitted virus with equal efficiency.For rabbits infected with any of the attenuated virus strains the mean percentage of infective fleas was inversely related to the survival time of the host. Rabbits infected with moderately attenuated strains (Grades IIIA and IIIB) had, on average, the highest proportion of infective fleas; hence such strains have a selective advantage and have become predominant under natural conditions in Britain. The changes that might occur if there is an increase in host resistance to myxomatosis are discussed.

ATTRACTION OF HYLOBIUS PALES (HERBST) (COLEOPTERA: CURCULIONIDAE) TO PHEROMONES OF BARK BEETLES (COLEOPTERA: SCOLYTIDAE)

1990 ◽  
Vol 122 (3) ◽  
pp. 423-427 ◽  
Author(s):  
Thomas W. Phillips
Keyword(s):  
Field Experiment ◽  
Bark Beetle ◽  
Bark Beetles ◽  
Suitable Host ◽  
Male And Female ◽  
Pine Weevil ◽  
Ips Calligraphus ◽  
Hylobius Pales ◽  
Host Resource

AbstractResults of a field experiment indicate that adults of the pine weevil Hylobius pales (Herbst) respond to pheromones of bark beetles. Each sex of H. pales was more attracted to traps baited with the combination of a pine bolt infested with male Ips calligraphus Germar plus the synthetic Dendroctonus Erichson pheromones frontalin and exo-brevicomin, than to traps baited with pine bolts alone. The combined numbers of male and female H. pales caught in traps baited only with Ips calligraphus-infested bolts were significantly greater than numbers caught in traps baited with uninfested control bolts. The attraction of H. pales to bark beetle pheromones may represent a kairomonal response in which weevils exploit semiochemicals from other species that signify a suitable host resource.

Sex Differences in Inmates: Anger, Sensitivity to Provocation and Family History of Imprisonment

2021 ◽  
pp. 0306624X2110491
Author(s):  
Marta Bodecka-Zych ◽  
Anna Zajenkowska ◽  
Mary Bower Russa
Keyword(s):  
Family History ◽  
Comparison Group ◽  
Female Inmates ◽  
Male And Female ◽  
Female Prisoners ◽  
Increased Risk ◽  
Incarcerated Populations ◽  
History Of ◽  
Male Prisoners

Little research has explored the role of aggression, anger, and family history of incarceration as they relate to female offenders. The current study aimed to address this gap in the literature by investigating these possible risk factors for incarceration among both men and women. The survey involved 123 (61 female and 62 male) prisoners convicted for violent crimes and a comparison group of 118 (60 female and 58 male) adults from the community. We found that women (convicted and non-convicted) were more sensitive to provocation than men, while community adults showed higher levels of trait anger than prisoners. Detainees were more likely than community adults to have a relative in prison. Although male and female inmates were equally likely to have a relative in prison, they differed in their relation to the imprisoned relative. Male and female prisoners showed increased risk for incarceration of same sex, first degree relatives (father and brothers for men, and mothers for women). These results may contribute to improved understanding of incarcerated populations. As such, this represents a critical first step in creating recovery programs that are more gender appropriate.

The Impact of Gender on Use of Cybercafé: A Survey of Cybercafé Users

2018 ◽  
Vol 8 (1) ◽  
pp. 80-86
Author(s):  
S. U. Shiva Kumara ◽  
B. T. Sampath Kumar
Keyword(s):  
Internet Services ◽  
Noisy Environment ◽  
Male And Female ◽  
Internet Connection ◽  
History Of ◽  
The Impact

The study aims to know the Impact of gender on the use of cybercafé. The study focused on the frequency and purpose of using cybercafé by male and female users. It also focused on the problems encountered by male and female users while using Internet at cybercafé. An aggregate of 450 copies of questionnaires were circulated to the cybercafé user, of which 416 properly filled questionnaires were returned. Data was analyzed using SPSS 21.0 version. It was observed that male users had a long history of using cybercafé than female counterparts (p<.000). The data also indicate that there is an association between the frequency of visit to the cybercafé and the gender (p<.000). High cost of Internet services (74.2%), noisy environment in and around the cybercafé (55.76%) and slow Internet connection (49.75%) at cybercafé were major problems faced by the cybercafé users.

scholarly journals Association between Foot Posture Index and Ankle Sprain in Indoor Football Players

2016 ◽  
Vol 8 (10) ◽  
pp. 160 ◽  
Author(s):  
Afsaneh Safar Cherati ◽  
Masoud Dousti ◽  
Shima Younespour
Keyword(s):  
Ankle Sprain ◽  
Football Players ◽  
Male And Female ◽  
Positive History ◽  
Foot Posture Index ◽  
Posture Index ◽  
Foot Posture ◽  
History Of ◽  
The Relationship

<p><strong>Objective</strong><strong>: </strong>This study investigated the relationship between foot type and ankle sprain incidence.</p><p><strong>Method</strong><strong>: </strong>In a prospective cohort study using the FPI, 68 adult male and female indoor football (Futsal) players were measured and their feet were classified according to foot posture index (FPI) as neutral, supinated and pronated. They were followed over 6 month as a one competition season and at the end, any injuries at the ankle during this period were detected.</p><p><strong>Result</strong><strong>: </strong>There was no significant association between FPI score (considering the total FPI score and its six components) and occurrence of ankle sprain. Also, no association was existed between gender, age, height, weight, BMI, duration of professional exercise, dominant foot and occurrence of ankle sprain. In this study, the history of previous ankle sprain was the only significant predictor of the occurrence of ankle sprain in the follow-up period. Participants with the positive history of previous ankle sprain were at higher risk of developing new ankle sprain (OR=6.02, 95% CI: (1.93, 18.84), p=0.002).</p><p><strong>Conclusion</strong><strong>: </strong>There was no significant association between FPI score and occurrence of ankle sprain.<strong></strong></p><p><strong>Limitation: </strong>there was scarce of supinated foot in the study so evaluation of relationship between supinated feet and ankle sprain was not applicable.</p>

scholarly journals OUTCOME OF CEREBRAL CONTUSIONS DUE TO TRAUMATIC BRAIN INJURY

2020 ◽  
Vol 11 (1) ◽  
pp. 39-43
Author(s):  
Zubair Ahmed Khan ◽  
Habib sultan ◽  
Amir Aziz ◽  
Shahrukh Rizvi ◽  
Tauqeer Ahmed ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Hospital Stay ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Road Traffic Accidents ◽  
Male And Female ◽  
Duration Of Hospital Stay ◽  
History Of ◽  
Age Range

ABSTRACT:BACKGROUND & OBJECTIVE: To compare the results of surgically operated vs conservatively treated patients of cerebral contusions due to traumatic brain injury. METHODOLOGY: This comparative study was conducted from January 2012 to December 2014 at the department of Neurosurgery, PGMI Lahore General Hospital, Lahore. A total of 50 patients were included in this study of both gender (male and female) and in the age range of 15-65 years. In our study 20 patients were managed conservatively while other 30 patients were operated for cerebral contusions. The mode of injury in our study was road traffic accidents and history of falls. RESULTS: Out of 50 patients, there were 41 (82%) males and 09 (18%) female patients. Their age ranged from 15 - 65 years. In this study the overall mean age is 38.36 years. The maximum numbers of patients were in their third and fourth decades of life. In our study the duration of hospital stay in conservatively managed patients was longer as compared to surgically treated patients who were discharged earlier. Mortality rate in surgically managed patients having a GCS ranged between 09 to 12 was very low contrary to the conservatively managed group, similarly the rate of delayed contusion formation and edema was also low in surgically managed patients as compared to those who were managed conservatively. CONCLUSION: Surgically managed patients of cerebral contusions in traumatic brain injury has better outcome and decreased hospital stay as compared to conservatively managed patients.

scholarly journals Associations of Phoretic Mites on Bark Beetles of the Genus Ips in the Black Sea Mountains of Turkey

2021 ◽  
Author(s):  
Cihan Cilbircioğlu ◽  
Marta Matek Kovač ◽  
Milan Pernek
Keyword(s):  
Black Sea ◽  
Bark Beetles ◽  
Pinus Nigra ◽  
Mite Species ◽  
Tree Bark ◽  
The Black Sea ◽  
Forest Pests ◽  
Larval Stages ◽  
Suitable Habitats ◽  
First Time

Phoretic mites use bark beetles for transportation to new, suitable habitats. Some phoretic mites act as predators and parasitoids of the bark beetles&rsquo; immature stages, especially egg and early larval stages, and are potential agents for the biological control of scolytine forest pests. One of the most numerous and largest mite orders is Mesostigmata which live very frequently in relationships with other invertebrates. Many are found in association with various species of bark beetles. Here, a total of 41 specimens of different bark beetles of the genus Ips (I. acuminatus, I. sexdentatus and I. typographus) were studied for presence, species composition, and abundance of phoretic mites. The beetles were collected on dead wood and parts of tree bark of Pinus nigra, P. slyvestris and Picea abies in the Black Sea Mountains in Kastamonu and Artin Province of Turkey. A total of 9 mite species in 2 genera were found, including Dendrolaelaps quadrisetus, Ereynetes sp., Histiostoma piceae, Paraleius cf. leontonychus, Pleuronectocaeleno barbara., Proctolaelaps hystricoides, Schizostethus simulatrix, Trichouropoda lamellosa and Urobovella ipidis. All species and genera are identified for the first time within Turkish fauna.

scholarly journals Characteristics of Acute Myocardial Infarction Patients

2020 ◽  
Vol 9 (2) ◽  
pp. 1017-1026
Author(s):  
Desi Natalia Trijayanti Idris ◽  
Dian Taviyanda ◽  
Srinalesti Mahanani
Keyword(s):  
Diabetes Mellitus ◽  
Myocardial Infarction ◽  
Blood Pressure ◽  
Acute Myocardial Infarction ◽  
Family History ◽  
Frequency Distribution ◽  
Pulse Frequency ◽  
Education History ◽  
Male And Female ◽  
History Of

Acute myocardial infarction (AMI) is a disease that has a high mortality. Usually happens to anyone and regardless of age, both male and female. The purpose of this study was to describe the characteristics of acute myocardial infarction patients hospitalized. This study uses a descriptive design. The variables used in this study were the characteristics of acute myocardial infarction patients consisting of gender, age, education, history of hypertension, history of diabetes mellitus, family history of acute myocardial infarction, blood pressure and pulse frequency. The number of samples used was 35 respondents who analyzed the data using a frequency distribution. The results showed that the characteristics of 35 respondents showed that the majority of AMI patients occurred in men, namely 60%, the majority were aged 56-60, namely 34.3%, the majority had a history of hypertension, diabetes mellitus and also a family history of having AMI. 

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