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Numbers

133

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10K +

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177

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Latest Published Papers

Kinetics, Thermodynamic and Isotherms Modeling of the Equilibrium Sorption of Pb (II), Ni (II), and Cd (II) Ions into Tiger Nut Chaff (Cyperus Esculentus) from Model Wastewater

Olowu Rasaq Adewale, Osundiya Medina Olubunmi, Sobola Abdullahi Owolabi, Osifeko Olawale Lawrence, Tovide Oluwakemi Omotunde, Oyewole Toyib Seun, Elesho Adeseye Omololu, Onifade Olayinka Omoniyi, Majolagbe Abdulrafiu Olaiwola, Onwordi Chionyedua Theresa, Adejare Adeniyi Ayemu

Physical Chemistry, 2024, 13(2), pp. 19-31

DOI: 10.5923/j.pc.20241302.01

Open Access
Heavy metals have detrimental effects on human health, and exposure to these metals has increased by industrial and anthropogenic activities and modern industrialization. The kinetics, isotherms, and thermodynamics of adsorption were investigated to establish the mechanisms of adsorption of tiger ...

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681 Views  177 Downloads

Effects of Different Zn Doping Concentration on the Optical and Structural Properties of TiO2 Nanoparticles

Gakuru Simon Waweru, Sharon Kiprotich, Peter Waithaka

Nanoscience and Nanotechnology, 2024, 13(1), pp. 1-9

DOI: 10.5923/j.nn.20241301.01

Open Access
Zn-doped TiO2 nanoparticles (Z-T NPs) were successfully synthesized using the sol-gel method. Titanium isopropoxide, ethanol, and diethanolamine were used in the ratio of 1:6:1 as the metal precursor, solvent precursor, and refluxing agent, respectively. The Z-T NPs were characterized ...

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586 Views  103 Downloads

Structural and Optical Properties of ZnO:Al:Ga Co-Doped Nanoparticles: Investigation on the Effects of pH of the Precursor Solution via a Simple Sol-Gel Route

Kiprotich Bett, Sharon Kiprotich, Jatani Ungula, Warren Andayi

American Journal of Materials Science, 2024, 14(2), pp. 21-30

DOI: 10.5923/j.materials.20241402.01

Open Access
Zinc oxide (ZnO) has unique properties that are suitable for solar cell applications. However, there is need to improve its effectiveness by incorporating dopants into ZnO structure. This study investigates how pH affects the material characteristics of ZnO:Al:Ga co-doped nanoparticles Nps) with the ...

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709 Views  138 Downloads

Development of Technology for Obtaining Sodium Peroxide Sulfate

Bibigul Koshanova Turganbaevna, Dildora Tursunova Abdusattarovna, Aktam Erkaev Ulashovich, Nazokat Erkaeva Aktamovna

International Journal of Materials and Chemistry, 2024, 14(2), pp. 24-29

DOI: 10.5923/j.ijmc.20241402.03

Open Access
The aim of the work is to study the theoretical foundations for obtaining Na2SO4·0.5H2O2 by liquid-phase and solid-phase methods and to study its bleaching properties. In order to obtain bleaches, a theoretical analysis of the systems: sodium sulfate - ...

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642 Views  124 Downloads

Morphological Indicators of Self Organization of a Drop of Dehydrated Saliva at Various Vegetative Statuses and Health Levels

N. М. Gasanova, E. A. Ergashev

International Journal of Genetic Engineering, 2024, 12(4), pp. 39-47

DOI: 10.5923/j.ijge.20241204.01

Open Access
In this article discusses the prospects for using the features of the morphology indicators of microcrystals of biological fluids, namely human saliva, as markers of prenosological diagnostics. Examination of 43 practically healthy students of both sexes and at the age of 18-22 years. showed that ...

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564 Views  94 Downloads

Surgical Treatment of Degenerative Diseases of the Cervical Spine

Yuldashev Ravshan Muslimovich, Shukurov Xumoyuddin Asliddin O’g’li, Ruzimurodov Muhammad Faxritdinovich

American Journal of Medicine and Medical Sciences, 2024, 14(5), pp. 1317-1320

DOI: 10.5923/j.ajmms.20241405.35

Open Access
Background. This article offers an analysis of the various techniques employed in the surgical treatment of cervical spine degenerative diseases. Methods. The results of examination and surgical treatment of 76 patients for the period 2022-2023 at the Republican Scientific Center of Neurosurgery ...

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169 Views  79 Downloads

Extreme Rainfall in Madagascar Part I: Return Levels and Return Periods with Stationary and Non-Stationary Models

Justin Ratsaramody

Resources and Environment, 2024, 14(1), pp. 21-31

DOI: 10.5923/j.re.20241401.02

Open Access
The association of a return level with a return period and vice-versa is a fundamental engineering requirement, as it helps determine the design flow to be assigned to a given infrastructure. To this end, the production of isohyets of various frequencies in map form is an essential practical tool, ...

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130 Views  85 Downloads

Most Cited Papers

A Review of Leadership Theories, Principles and Styles and Their Relevance to Educational Management

Rose Ngozi Amanchukwu, Gloria Jones Stanley, Nwachukwu Prince Ololube

Management, 2015, 5(1), pp. 6-14

DOI: 10.5923/j.mm.20150501.02

Open Access

This study was motivated by the premise that no nation grows further than the quality of its educational leaders. The purpose of this theoretical debate is to examine the wider context of leadership and its effectiveness towards improving school management. This academic evaluation examines recent theoretical developments in the study of educational leadership in school management. It begins with a concise overview of the meaning and concept of leadership in terms of research, theory, and practice. This is followed by an examination of the theories of leadership, principles and styles of leadership. Each section ends with an identification of contemporary issues and possible means of amelioration. This article concludes that success is certain if the application of the leadership styles, principles and methods is properly and fully applied in school management because quality educational leadership tradition offers great opportunity to further refine educational leadership and management policies and practices by accepting and utilizing the basic principles and styles of educational leadership.

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420
Citations

Internet of Things: Ubiquitous Home Control and Monitoring System using Android based Smart Phone

Rajeev Piyare

International Journal of Internet of Things, 2013, 2(1), pp. 5-11

DOI: 10.5923/j.ijit.20130201.02

Open Access

This paper presents a low cost and flexible home control and monitoring system using an embedded micro-web server, with IP connectivity for accessing and controlling devices and appliances remotely using Android based Smart phone app. The proposed system does not require a dedicated server PC with respect to similar systems and offers a novel communication protocol to monitor and control the home environment with more than just the switching functionality. To demonstrate the feasibility and effectiveness of this system, devices such as light switches, power plug, temperature sensor and current sensor have been integrated with the proposed home control system.

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319
Citations

Aqueous Two Phase Systems for the Recovery of Biomolecules – A Review

Selvaraj Raja, Vytla Ramachandra Murty, Varadavenkatesan Thivaharan, Vinayagam Rajasekar, Vinayagam Ramesh

Science and Technology, 2011, 1(1), pp. 7-16

DOI: 10.5923/j.scit.20110101.02

Open Access

Aqueous two phase system (ATPS) is a liquid – liquid extraction method which employs two aqueous phases having applications in the field of biotechnology for the separation and purification of biological materials such as proteins, enzymes, nucleic acids, virus, antibodies and cell organelles. This review discusses the basic principles of ATPS, the factors affecting partitioning, optimization by design of experiments and the recent applications like extractive fermentation, membrane supported liquid – liquid extraction and aqueous two phase floatation. A comparative study between ATPS and other conventional methods is also discussed. The emphasis is given to PEG/salt two-phase systems because of the low cost of the system.

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108
Citations

Latest Special Issue - Call for Papers

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Please complete your proposal (see the template) and send it to the Assistant Editor(editorialboard.sapub@gmail.com, editorialboard2.sapub@gmail.com).

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