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Anthropogenic Impact on the Landscapes of the Tashkent Region and Their Degrees of Degradation

Shavkat M. Sharipov[1], Nafisa R. Samatova[2]

[1]  National University of Uzbekistan named after Mirzo Ulugbek, Faculty of Geography and GIS, University 4, 100174, Tashkent, Uzbekistan, https://orcid.org/0000-0001-6602-3414, e-mail: sh.sharipov@nuu.uz

[1]  Jizzakh State Pedagogical University, Sh. Rashidov Street, 4, Jizzakh, 130100, Jizzakh Region, Uzbekistan, https://orcid.org/0000-0001-9949-8555 ,  e-mail: nafisasamatova198727@gmail.com

Annotation: This article analyzes the degree of anthropogenic impact and the level of landscape degradation in the Tashkent region using GIS and remote sensing data. The results show that approximately 5.46% of the territory has been affected by various anthropogenic processes, mainly due to mining, quarrying, irrigated agriculture, and sand–gravel extraction along river valleys. According to cartographic and multi-criteria evaluation, the Qurama, Olmaliqsay-2, and Sovuqbuloqsay landscapes represent the most severely disturbed areas. The study develops scientifically grounded recommendations for ecological reclamation, assessment of natural recovery potential, and implementation of remote monitoring systems. The findings contribute to ensuring the stability of landscape systems and strengthening ecological safety in the Tashkent region.

[Shavkat M. Sharipov, Nafisa R. Samatova. Anthropogenic Impact on the Landscapes of the Tashkent Region and Their Degrees of Degradation. Nat Sci 2025,23(11):1-7]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 01. doi:10.7537/marsnsj231125.01

Keywords: Tashkent region, landscape, anthropogenic pressure, GIS analysis, remote sensing, quarry, erosion, ecological reclamation, degradation index, landscape stability.

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Recent natural calamities in the Antarctica : A review and revisit

                                                                                       Gangadhar

8. No.5-30-4/1, Saibabanagar, Jeedimetla, Hyderabad - 500 055, Telangana,  India.

Email: gangadhar19582058@gmail.com

Abstract:  Recent natural calamities in Antarctica include rapid ice shelf melting, increased sea ice loss, and the impact of a major earthquake off the coast of Chile. These events highlight the accelerating impacts of climate change and other natural processes on the Antarctic environment. The continent of Antarctica, which has a globally textual history, is home to various climate changes and natural calamities. Geological hazards can be studied by developing the Geoscope system, by developing the Monsoon Time Scales, meteorological hazards can be studied. Predictions and mitigation plans can be made and implemented accordingly. In addition to these, the study of Cosmology can explore the inextricable links between planetary movements and disasters and how the planets orbiting in space are affecting the disasters that occur on the Earth. So, Antarctic scientists can develop the Geoscope systems and Monsoon Time Scales as outlined below and protect people from the climate changes and natural calamities. This paper is composed of updated additional information and analysis with new data compared with current developments. 

[Gangadhar. Recent natural calamities in the Antarctica : A review and revisit. Nat Sci 2025,23(11):8-63]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 02. doi:10.7537/marsnsj231125.02

Keywords:  Ecological Forecasting Time Scales (1965-70), A New Model of Cosmology (1970-80), Basics of Geoscope (1980-87), Basics of Monsoon Time Scales (1987-91), Astro-Climatic Numerical Periodic Tables (1991-2000), Designs of Geoscope (2000-2015), Designs of Global Monsoon Time Scales (2015-still)

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Morphometric Analysis of the Sangzor River and Its Basin

Qosimov Nurmukhamad *, Gudalov Mirkomil **

*Associate Professor, Department of Geography, Faculty of Natural Sciences, Jizzakh State Pedagogical University, Uzbekistan. **PhD Candidate, Jizzakh State Pedagogical University, Uzbekistan.

morkomil1978@mail.ru, qosimovnurmuxamad1@gmail.com

Abstract: This study investigates the morphometric characteristics of the Sangzor River and its basin located in the Jizzakh region of Uzbekistan. Key parameters such as river length, sinuosity and density coefficients, slope, and other morphometric indicators have been determined. Additionally, the geographical location, boundaries, extremities, basin width and length, stream order, stream hierarchy, stream length, maximum and average elevation, symmetry, slope, and exposure of the Sangzor River basin have been analyzed using both traditional and modern methods. Studying these parameters of the river and its basin and drawing conclusions from them is of great importance for addressing future issues related to the sustainable use of the region’s natural resources.

[Qosimov Nurmukhamad, Gudalov Mirkomil. Morphometric Analysis of the Sangzor River and Its Basin. Nat Sci 2025,23(11):64-72]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 03. doi:10.7537/marsnsj231125.03

Keywords: morphometry; river; river basin; sinuosity; slope; exposure

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Assessing Staff Nurses’ Knowledge and Practice about Waste Management at Mansoura University Children’s Hospital

Ghada Mohamed Kamal Mahmoud¹, Hala Gabr Mahmoud², Maysa Fekry Ahmed³

¹ Assistant Lecturer of Nursing Administration, Faculty of Nursing, Mansoura University, Mansoura, Egypt

² Professor of Nursing Administration, Faculty of Nursing, Mansoura University, Mansoura, Egypt

³Assistant Professor of Nursing Administration, Faculty of Nursing, Mansoura University, Mansoura, Egypt

ghadamohamed@mans.edu.eg, dr.halagabr2000@yahoo.com, maysa_m@ mans.edu.eg

Abstract: Background: As members of the healthcare team, nurses must work together to provide patients with high-quality treatment. They deal with a lot of waste, complexity, unpredictability, and dynamism in their day-to-day work. Nurses play a crucial part in locating and getting rid of waste in healthcare systems by understanding and putting waste management principles into practice. Aim: To assess level of staff nurses’ waste management knowledge and practice at Mansoura University Children’s Hospital. Methods:  A cross-sectional, descriptive method was used employing 99 staff nurses as a sample at Mansoura University Children's Hospital. Data collection tools were; Waste Management Knowledge Questionnaire and Nurses’ Observational Checklist for Wastes Identification Practice. Results: The majority of studied staff nurses (99%) had poor level of knowledge about waste management and the highest percentage of them were at low level of practice about all waste management subscales. Recommendations: Introducing orientation programs to foster a waste management culture at the top and lower management levels. Offering chances for nurses to participate in training and educational initiatives that emphasize waste management techniques.

[Ghada Mohamed Kamal Mahmoud, Hala Gabr Mahmoud, Maysa Fekry Ahmed. Assessing Staff Nurses’ Knowledge and Practice about Waste Management at Mansoura University Children’s Hospital. Nat Sci 2025,23(11):73-81]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 04. doi:10.7537/marsnsj231125.04

Keywords: Knowledge; Practice; Staff nurses; Waste; Waste Management

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Suspended sediment runoff and soil washout intensity in the Chirchiq-Ohangaron rivers basin

Fazliddin Khikmatov¹, Oyjamol  Kholtojiyeva², Bekzod  Khikmatov³, Komiljon Rakhmonov⁴

^1.Department of Surface hydrology and meteorology, National University of Uzbekistan, Email: hikmatov_f@mail.ru

^2.Department of Surface hydrology and meteorology, National University of Uzbekistan, Email: oyjamolxoltojiyeva@gmail.com

^3.Institute of Civil Protection of the Ministry of Emergency Situations of the Republic of Uzbekistan, Email: fvvfmi@umail.uz  

^4.Department of Surface hydrology and meteorology, National University of Uzbekistan, Email:  komiljons@mail.ru

Abstract. This article addresses the study of suspended sediment flow and the assessment of soil washout intensity from the mountain river basins of the Chirchiq–Ohangaron region. Data on suspended sediment runoff from rivers were used as the primary source material. The study also evaluates the contributions of seasonal atmospheric precipitation and air temperature to the formation of suspended sediment runoff in mountain rivers. Calculation nomograms are proposed for the quantitative assessment of suspended sediment runoff, developed on the basis of normalized regression equations that describe the relationship between suspended sediment runoff and hydrometeorological factors. The quantitative indicators of hydrological variables characterizing the intensity of soil washout from river basins have been refined through testing of the calculation nomograms. Furthermore, the long-term average values of suspended sediment runoff have been determined, including sediment volume norms, flushing modulus, erosion meter and other related parameters.

[Fazliddin Khikmatov, Oyjamol  Kholtojiyeva, Bekzod  Khikmatov, Komiljon Rakhmonov. Suspended sediment runoff and soil washout intensity in the Chirchiq-Ohangaron rivers basin. Nat Sci 2025,23(11):82-90]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 05. doi:10.7537/marsnsj231125.05

Keywords: river; water flow; suspended sediment; sediment load; flushing modulus; flushing layer; erosion meter

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Effect of a mixture of shrimp peel extract and shellfish of some types of oysters on weight gain of experimental rats with osteoporosis induced with dexamethasone

Assoc. Prof. Dr. Ryeaan Abd EI Moneim Sayed Abd EL Rahem

Associate Professor in Department of Home Economics, Faculty of Specific Education, Port Said University, Port Said, Egypt

Abstract: Aim of the study: This research aims to study the Effect of a mixture of shrimp peel extract and shellfish of some types of oysters on weight gain of experimental rats with osteoporosis induced with dexamethasone as a nutritional supplement to maximize the role of the Blue Economy in promoting sustainable development.

Methods Used: Shrimp peels extract (it is extracted by water and alcohol)

Oyster extract (extracted by water and alcohol)

Measures, Biological Assessment: A biological experiment is being carried out on experimental rats (albino rats) to evaluate the effect of feeding a mixture of shrimp shell extract and shellfish of some types of oysters on experimental rats with osteoporosis induced with dexamethasone. A number (50) of (albino rats) are used, distributed into five groups under test. Each group consists of ten (10) rats; (5) males and (5) females, All rats were fed with the standard food for a week before the start of the experiment to get adapted. Both the positive control and experimental groups of rats have to be injected intramuscularly with DEX (7 mg / kg of body weight) once a week for 4 weeks.

 1- The first group, the healthy (negative) control group, feed on the basic food

2- The second group, the infected (positive) control group feed on the basic food

 3- The third experimental group (1) feed on the basic food + extract of 500 mg of oyster shells + extract of 500 mg of shrimp shells.

 4- The fourth group; the experimental group (2),are fed on the basic food + extract of 1600 mg of oyster shells + extract of 1600 mg of shrimp shells

 5- The fifth group; the experimental group (3),are fed on the basic food + extract of 3000 mg of oyster shells + extract of 3000 mg of shrimp shells.

Method Used: Weight gain using medical electronic scale.

Statistical Analysis: The data are treated according to the SPSS program and the necessary statistical treatments, P=0.05.

Conclusion: The results of this study about the effects of a mixture of shrimp peels extract and shellfish of some types of oysters on experimental rats with osteoporosis induced with dexamethasone revealed the following conclusions:

1.      There are different results for different management of groups

2.      The male rats were higher in weight gain compared to female rats

Recommendation: It is recommended that Bio-economic importance of shrimp and oyster shell due to the benefit of chitosan and chitin leading to weight gain and benefit from the waste in agriculture and biotechnology industry, wastewater treatment, Energy conversion and biomedical material development

[Ryeaan Abd EI Moneim Sayed Abd EL Rahem. Effect of a mixture of shrimp peel extract and shellfish of some types of oysters on weight gain of experimental rats with osteoporosis induced with dexamethasone Nat Sci 2025,23(11):91-101]. ISSN 1545-0740 (print); ISSN 2375-7167 (online). http://www.sciencepub.net/nature 06. doi:10.7537/marsnsj231125.06

Key words: Shrimp peel extract and oysters; male and female rats; osteoporosis; dexamethasone

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