scholarly journals Status of Aquarium Fisheries of Rajshahi City

1970 ◽  
Vol 15 ◽  
pp. 169-171
Author(s):  
ABM Mohsin ◽  
Md Emdadul Haque ◽  
Md Nazrul Islam
Keyword(s):  
Blood Pressure ◽  
Water Quality ◽  
Dissolve Oxygen ◽  
Natural Disaster ◽  
Mental Stress ◽  
Aquatic Organism ◽  
Dhaka City ◽  
Technical Problems ◽  
First Time ◽  
Rajshahi City

An aquarium is an enclosed body of water containing a mixture of selected and unselected captive living aquatic organism. It is essentially unstable and to obtain stability must be carefully designed and managed (Suxena 2003). Recently aquarium technology means that the technical problems of keening aquatic animals have in principle been solved. It includes about water preparation and the constant monitoring of water quality i.e. pH, hardness, dissolve oxygen, temperature etc. and for this heater, pumps and filter is used. For first time colorful fishes are imported in our country in 1992 and the business was confined in some limited shops of Katabaon area of Dhaka city. But now this business is very common in all over the country (Akhter 1995). It is not only enhancing the beauty of a house but also it is a source of recreation. Japanese can realize the presage of earthquake or can predict about natural disaster by watching the sudden movement of the aquarium fishes (Shafi 1998). Similarly to get rid of mental stress, watching fish is reported well and this also helps to decrease the high blood pressure (Hervert 1999). In Rajshahi city aquarium business started at the last decade and it is spreading rapidly. So development of aquarium fisheries is highly significant here.   doi: 10.3329/jbs.v15i0.2159 J. bio-sci. 15: 169-171, 2007

Cardiac and Blood Pressure Responses to Mental Stress in Reactive Hypertensives

1991 ◽  
Vol 13 (1) ◽  
pp. 1-12 ◽  
Author(s):  
G. Pannarale ◽  
J. E. Isea ◽  
A. J. S. Coats ◽  
J. Conway ◽  
P. Sleight
Keyword(s):  
Blood Pressure ◽  
Mental Stress ◽  
Blood Pressure Responses

Haemodynamic responses to psychosocial stress during the menstrual cycle

1991 ◽  
Vol 81 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Karin Manhem ◽  
Christina Jern ◽  
Martin Pilhall ◽  
Guy Shanks ◽  
Sverker Jern
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Menstrual Cycle ◽  
Systolic Blood Pressure ◽  
Psychosocial Stress ◽  
Mental Stress ◽  
Luteal Phase ◽  
Follicular Phase ◽  
Two Phases ◽  
Plasma Catecholamine Concentrations

1. The haemodynamic effects of hormonal changes during the menstrual cycle were examined in 11 normotensive women (age 20–46 years). The subjects were studied on days 2–8 (follicular phase) and days 18–26 (luteal phase) in a randomized order. A standardized mental stress test and a 24 h recording of ambulatory blood pressure and heart rate were performed. 2. Pre-stress resting levels of heart rate and blood pressure were similar during the two phases of the menstrual cycle. 3. During mental stress, the heart rate response was significantly greater during the luteal phase than during the follicular phase (14.7 versus 9.7 beats/min; P < 0.05). 4. Blood pressure, plasma catecholamine concentrations and subjective stress experience increased significantly in response to stress, without any significant differences between the two phases. 5. During 24 h ambulatory monitoring, higher levels of systolic blood pressure and heart rate were observed in the luteal phase than in the follicular phase (P < 0.005 and P < 0.0001, respectively). 6. These data indicate that cyclic variations in female sex hormones not only affect systolic blood pressure and heart rate, but also alter the haemodynamic responses to psychosocial stress.

scholarly journals Blood Pressure Reactions to Acute Mental Stress and Future Blood Pressure Status

2011 ◽  
Vol 73 (9) ◽  
pp. 737-742 ◽  
Author(s):  
Douglas Carroll ◽  
Anna C. Phillips ◽  
Geoff Der ◽  
Kate Hunt ◽  
Michaela Benzeval
Keyword(s):  
Blood Pressure ◽  
Mental Stress

Abstract 17321: Race Differences in Hemodynamic Responses to Acute Mental Stress and the Role of Depressive Symptoms

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Kobina A Wilmot ◽  
Ibhar Al Mheid ◽  
Ronnie Ramadan ◽  
Pratik M Pimple ◽  
Amit J Shah ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Depressive Symptoms ◽  
African Americans ◽  
Mental Stress ◽  
Rate Pressure Product ◽  
Hemodynamic Responses ◽  
Explanatory Role ◽  
The Difference ◽  
Hemodynamic Reactivity ◽  
Different Response

Introduction: Increased hemodynamic responses to psychological stress have been associated with adverse CAD events. African Americans (AA) have worse CAD outcomes than other groups. Heightened hemodynamic responses to stress may play a role. Our hypothesis was that AA would have higher hemodynamic reactivity to a standardized mental stress compared to Non-African Americans (NAA). Methods: We evaluated 574 patients (163 AA) with CAD, who underwent a standardized mental stress challenge. Hemodynamics were obtained at rest, during stress (speaking task), and during recovery. The rate-pressure product (RPP) was calculated as systolic blood pressure (SBP) x heart rate (HR). Hemodynamic reactivity was evaluated as the difference in RPP at rest and during stress. Depressive symptoms were measured with the Beck Depression Inventory-II (BDI). Results: As compared to NAA, AA patients were younger, had lower education and income, and higher prevalence of diabetes, obesity, hypertension, smoking, and depressive symptoms (BDI mean scores 9.8 vs. 7.6, p= 0.003). AA patients had higher blood pressure during all three periods (Table). However, hemodynamic reactivity with stress was significantly lower in AA than NAA (RPP reactivity 3114 vs 3620, p= 0.02). Adjusting for baseline RPP, age, gender and smoking did not substantially alter the association. However, after adjusting for depressive symptoms, the association was attenuated by 23% (p=0.16). BMI, diabetes and beta-blocker use had minimal additional explanatory role. In the final model, baseline RPP, depressive symptoms and BMI were significantly associated with a lower RPP reactivity (p<0.01). Conclusion: AA patients with CAD, compared with NAA, have elevated blood pressure throughout mental stress, but tend to have blunted hemodynamic reactivity to stress. Depressive symptoms, which are more elevated among AA, play a role in this different response to stress and may be implicated in the higher CAD risk of this group.

Paleopathological study of the Egyptian mummies collected in Italy: the Anubis project

1970 ◽  
Vol 80 (1) ◽  
Author(s):  
Rosalba Ciranni ◽  
Donata Pangoli ◽  
Valentina Giuffra ◽  
DAvide Caramella ◽  
Edda Bresciani ◽  
...  
Keyword(s):  
X Rays ◽  
Axial Tomography ◽  
Technical Problems ◽  
Histological Studies ◽  
Computed Axial Tomography ◽  
The University ◽  
First Time

Eighty-five Egyptian mummies belonging to different dynastic periods and collected in a number of Italian museums, have been censed and submitted for paleopathological research. In most cases the presence of bandages required the application of X- rays and computed axial tomography (CAT). Fifty-two mummies have been studied in situ with Xrays; twelve with CAT scanning. Technical problems kept us from investigating eleven of the censed mummies. In a few cases it was possible to perform autopsies, endoscopy, or histological studies. The mummies submitted for X- rays were divided into two groups: The first group thirty-six mummies studied by the team of Paleopathology-Egyptology of the University of Pisa were studied for the first time. The second group was composed of twenty-six mummies studied elsewhere in Italy. Those results also have been included in the Anubi Project database.

scholarly journals Investigation of Water Quality Parameters from Ramna, Crescent and Hatirjheel Lakes in Dhaka City

2015 ◽  
Vol 8 (1) ◽  
pp. 1-5 ◽  
Author(s):  
MS Islam ◽  
M Rehnuma ◽  
SS Tithi ◽  
MH Kabir ◽  
L Sarkar
Keyword(s):  
Water Quality ◽  
Lake Water ◽  
Public Awareness ◽  
Aquatic Organisms ◽  
Quality Parameters ◽  
Water Runoff ◽  
Dhaka City ◽  
Sound Environment ◽  
Surrounding Areas

The study was conducted to know the status of water quality of the Ramna, Crescent and Hatirjheel lakes in the Dhaka city. Water samples were collected from three different points of each lake and analyzed for various physicochemical parameters including temperature, pH, EC, TDS, DO, BOD, hardness, alkalinity, acidity during the period from November 2013 to April 2014. The mean temperature 22.54, 24.59 and 24.24°C; EC 15400, 282.00 and 618.27 ?Scm-1; TDS 85.38, 155.60 and 339.90 ppm; pH 7.73, 7.85 and 7.67; DO 3.51, 3.92 and 3.65 ppm; BOD 0.93, 0.73 and 3.15 ppm; hardness 95.00, 108.56 and 105.11 ppm; alkalinity 48.9, 120.7 and 249.1 ppm, and acidity 2.18, 2.67 and 2.05 ppm were investigated from Ramna, Crescent and Hatirjheel lakes, respectively. Lower concentration of DO was observed in all three lakes that severely harmed the aquatic organisms and degrade their habitat. The comparative study demonstrated that the concentration of BOD, EC, TDS, alkalinity and acidity of Hatirjheel Lake was higher than Ramna and Crescent lakes which indicated pollution of the lake water. The rain and storm water runoff, lack of awareness of people were responsible for the pollution of Ramna, Crescent and Hatirjheel lakes water. Connection of the sewerage line with the rain water collection channels and mixing of solid waste with lake water are the main reasons for pollution of Hatirjheel lake. Poor water quality of these lakes affects the ecosystem and aesthetic beauty negatively. To maintain the sound environment and healthy ecosystem of the lakes and the surrounding areas need proper management and monitoring and implementation of existing laws and regulations. Moreover public awareness is necessary otherwise it is hardly possible to maintain sound water quality of these three lakes.J. Environ. Sci. & Natural Resources, 8(1): 1-5 2015

scholarly journals Can Lipoic Acid Attenuate Cardiovascular Disturbances Induced by Ethanol and Disulfiram Administration Separately or Jointly in Rats?

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Anna Bilska-Wilkosz ◽  
Magdalena Kotańska ◽  
Magdalena Górny ◽  
Barbara Filipek ◽  
Małgorzata Iciek
Keyword(s):  
Blood Pressure ◽  
Rat Liver ◽  
Lipoic Acid ◽  
Aldh Activity ◽  
Dihydrolipoic Acid ◽  
Treatment Groups ◽  
Intracellular Compartments ◽  
Electrocardiogram Ecg ◽  
First Time ◽  
All Treatment

The exogenous lipoic acid (LA) is successfully used as a drug in the treatment of many diseases. It is assumed that after administration, LA is transported to the intracellular compartments and reduced to dihydrolipoic acid (DHLA) which is catalyzed by NAD(P)H-dependent enzymes. The purpose of this study was to investigate whether LA can attenuate cardiovascular disturbances induced by ethanol (EtOH) and disulfiram (DSF) administration separately or jointly in rats. For this purpose, we measured systolic and diastolic blood pressure, recorded electrocardiogram (ECG), and estimated mortality of rats. We also studied the activity of aldehyde dehydrogenase (ALDH) in the rat liver. It was shown for the first time that LA partially attenuated the cardiac arrhythmia (extrasystoles and atrioventricular blocks) induced by EtOH and reduced the EtOH-induced mortality of animals, which suggests that LA may have a potential for use in cardiac disturbance in conditions of acute EtOH intoxication. The administration of EtOH, LA, and DSF separately or jointly affected the ALDH activity in the rat liver since a significant decrease in the activity of the enzyme was observed in all treatment groups. The results indicating that LA is an inhibitor of ALDH activity are very surprising.

Effect of Inheritance and Stress on the Diurnal Excretion of Sodium and Potassium in Young People with and without a Family History of Hypertension

1980 ◽  
Vol 59 (s6) ◽  
pp. 161s-164s ◽  
Author(s):  
P. S. Parfrey ◽  
P. Wright ◽  
J. M. Ledingham
Keyword(s):  
Blood Pressure ◽  
Young People ◽  
Sodium Excretion ◽  
Mental Stress ◽  
Significant Negative Correlation ◽  
Potassium Excretion ◽  
Excretion Ratio ◽  
History Of ◽  
Family History Of Hypertension ◽  
Sodium And Potassium

1. The diurnal excretion of sodium and potassium was observed in young people, with and without a genetic predisposition to hypertension, both in the presence and absence of psychological stress. 2. In the absence of stress, the normal day/night sodium excretion ratio was reversed in the children of hypertensive parents. This was significantly less than day/night sodium excretion in children of normotensive parents. A similar finding was observed for day/night potassium excretion. 3. There was a significant negative correlation between systolic blood pressure and day/night sodium excretion in children of hypertensive parents but not in children of normotensive parents. 4. After the mental stress of a University examination day/night sodium reverted to normal in children of hypertensive parents.

scholarly journals Spatial model of water quality in Southeast Asian urban lake based on HBI using macrozoobenthos diversity as a proxy

2021 ◽  
Author(s):  
Andri Wibowo
Keyword(s):  
Water Quality ◽  
Model Selection ◽  
Water Temperature ◽  
Spatial Model ◽  
Aquatic Organism ◽  
Biotic Index ◽  
Urban Lake ◽  
Anthropogenic Pressures ◽  
Robust Approach ◽  
Temperature Variable

AbstractUrban lake is one of ecosystem that has experienced anthropogenic pressures and this can affect its water quality. One of a robust approach to assess the water quality is by using Hilsenhoff Biotic Index (HBI). This tool is quite versatile since it can be applied by using any aquatic organism as proxy including macrozoobenthos. This invertebrate group also has an advantage since it is common and easy to collect. Here this study is first, aiming to provide HBI based water quality spatial model using macrozoobenthos as a proxy applied in urban lake in West Java in Southeast Asia and second to seek the best model that can represent the water quality variables in particular dissolved oxygen (DO), pH, and temperature. Based on the spatial model and HBI, either inlet or outlet parts of the lake, it has better water quality in comparison to central parts. Based on HBI values, water quality in inlet and outlet parts (HBI = 6.7) is categorized as fair and poor (HBI = 6.9) for the central parts of the lake. The increase in HBI and decrease in water quality are positively correlated with the increase in water temperature variable in comparison to water DO and pH variables. Akaike model selection confirms that the macrozoobenthos diversity can be used as a proxy for increase in water temperature (Ψ)HBI (~temp)(AIC = −10.264) followed by combination of water temperature increase and decrease in DO(Ψ)HBI (~temp+DO)(AIC = −9.042398).

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