Consecutive songs produced by humpback whales recorded off the coast of Hawaii show recurrent pat... more Consecutive songs produced by humpback whales recorded off the coast of Hawaii show recurrent patterns of acoustic variation. Analyses of spectral entropy, a measure of the uniformity of energy distribution in the frequency domain, revealed that spectral entropy cycles in predictable patterns within song sessions. At time scales spanning tens of minutes, variations in spectral entropy appear to track changes in received intensity levels, which are correlated with song duration and may reflect the diving behavior of singers. Intra-individual variations in spectral entropy suggest that singing humpback whales may also vocally control entropic features of songs, both by gradually modulating the acoustic characteristics of units and by varying the amount of time they spend producing specific patterns of units. Preliminary analyses suggest that variations in spectral entropy within song cycles are indicative of the amount of time and energy singers spend producing constant-frequency (CF)...
Preliminary studies have indicated a correlation between hearing loss and dementia. However, the ... more Preliminary studies have indicated a correlation between hearing loss and dementia. However, the relationship between these two factors remains unclear. Utilizing mouse models of Alzheimer’s disease (AD), researchers can begin to understand the relationship between dementia and hearing loss. The present study examined hearing in two AD mouse models (5xFAD and APP/PS1) along with C57BL/6 control mice. Hearing thresholds for 14 kHz tones were collected from young and old, male and female mice using an operant conditioning nose poke procedure with positive reinforcement. Daily thresholds were collected for each mouse and plotted with regression lines to assess the rates of hearing loss. A linear mixed-effects model determined that thresholds differed by age, sex, and genetic background. These studies are important for understanding more about hearing in mouse models of AD, as well as the relationship between AD and hearing loss in the human population.
Backgrounds: Coffee consumption has recently received special attention, as many health benefits ... more Backgrounds: Coffee consumption has recently received special attention, as many health benefits have been found to be associated with its drinking. A lot of challenges have received on the coffee consumption and body weight status. The aim of the present work was to find out the relationship between coffee consumption and body weight, height and BMI. Methods: A total of 310 subjects with 144 male and 166 female included in the study and body weight was undertaken before (usual weight) after using dietary program (current weight) and BMI was calculated. The subject filling out the self-constructed questionnaire. All data analyzed by using SPSS T test and Chi-square test was performed. Result and discussions: The effect of coffee on body weight were investigated by numbers of questions. Coffee consumption did not have effect on the appetite rather assistant in body weight reduction in man (P< 0.05) and reduced body height in both man and women but have no effect on BMI. Furthermor...
Background: Respiratory tract infections (RTIs) are a major public health concern. This study aim... more Background: Respiratory tract infections (RTIs) are a major public health concern. This study aims to investigate the profiles and epidemiological characteristics of acute RTIs and respiratory pathogens in Palestinian hospitalized patients. Methods: Clinical samples from hospitalized patients with symptoms of acute RTIs admitted between January 2011 and December 2016 are referred to Palestinian Central Public Health Laboratory (PHCL) to identify the causative pathogen. Patients’ demographic information and the results of the molecular identification were retrieved from the electronic database at the PHCL. The results of the detections were analyzed to explore the distribution of pathogens resulting in hospitalization among patients with RTIs across age, gender, region, year and season. Results: A total of 15413 patients with acute RTIs were hospitalized during the study period. The causal agent was identified only in 28.7% of the patients. Overall, influenza viruses were the most co...
Consecutive songs produced by humpback whales recorded off the coast of Hawaii show recurrent pat... more Consecutive songs produced by humpback whales recorded off the coast of Hawaii show recurrent patterns of acoustic variation. Analyses of spectral entropy, a measure of the uniformity of energy distribution in the frequency domain, revealed that spectral entropy cycles in predictable patterns within song sessions. At time scales spanning tens of minutes, variations in spectral entropy appear to track changes in received intensity levels, which are correlated with song duration and may reflect the diving behavior of singers. Intra-individual variations in spectral entropy suggest that singing humpback whales may also vocally control entropic features of songs, both by gradually modulating the acoustic characteristics of units and by varying the amount of time they spend producing specific patterns of units. Preliminary analyses suggest that variations in spectral entropy within song cycles are indicative of the amount of time and energy singers spend producing constant-frequency (CF)...
Preliminary studies have indicated a correlation between hearing loss and dementia. However, the ... more Preliminary studies have indicated a correlation between hearing loss and dementia. However, the relationship between these two factors remains unclear. Utilizing mouse models of Alzheimer’s disease (AD), researchers can begin to understand the relationship between dementia and hearing loss. The present study examined hearing in two AD mouse models (5xFAD and APP/PS1) along with C57BL/6 control mice. Hearing thresholds for 14 kHz tones were collected from young and old, male and female mice using an operant conditioning nose poke procedure with positive reinforcement. Daily thresholds were collected for each mouse and plotted with regression lines to assess the rates of hearing loss. A linear mixed-effects model determined that thresholds differed by age, sex, and genetic background. These studies are important for understanding more about hearing in mouse models of AD, as well as the relationship between AD and hearing loss in the human population.
Backgrounds: Coffee consumption has recently received special attention, as many health benefits ... more Backgrounds: Coffee consumption has recently received special attention, as many health benefits have been found to be associated with its drinking. A lot of challenges have received on the coffee consumption and body weight status. The aim of the present work was to find out the relationship between coffee consumption and body weight, height and BMI. Methods: A total of 310 subjects with 144 male and 166 female included in the study and body weight was undertaken before (usual weight) after using dietary program (current weight) and BMI was calculated. The subject filling out the self-constructed questionnaire. All data analyzed by using SPSS T test and Chi-square test was performed. Result and discussions: The effect of coffee on body weight were investigated by numbers of questions. Coffee consumption did not have effect on the appetite rather assistant in body weight reduction in man (P< 0.05) and reduced body height in both man and women but have no effect on BMI. Furthermor...
Background: Respiratory tract infections (RTIs) are a major public health concern. This study aim... more Background: Respiratory tract infections (RTIs) are a major public health concern. This study aims to investigate the profiles and epidemiological characteristics of acute RTIs and respiratory pathogens in Palestinian hospitalized patients. Methods: Clinical samples from hospitalized patients with symptoms of acute RTIs admitted between January 2011 and December 2016 are referred to Palestinian Central Public Health Laboratory (PHCL) to identify the causative pathogen. Patients’ demographic information and the results of the molecular identification were retrieved from the electronic database at the PHCL. The results of the detections were analyzed to explore the distribution of pathogens resulting in hospitalization among patients with RTIs across age, gender, region, year and season. Results: A total of 15413 patients with acute RTIs were hospitalized during the study period. The causal agent was identified only in 28.7% of the patients. Overall, influenza viruses were the most co...
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Papers by Mariam Ashour