Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2746

SRE Articles

West African Monsoon (WAM) and Atlantic Cold Tongue (ACT) onsets using Regional Climate Model

August 2017

This study focused on the occurrences and relationships of the Atlantic Cold Tongue (ACT) and the West African Monsoon (WAM) onsets in the Sudano-Sahelian region during 1983-2000. Two simulations (WAFSSTERA and WAFSSTREY) were used to investigate the sensitivity of the Regional Atmospheric Model (MAR) for two different datasets of sea surface temperature (ERA-40 and Reynolds SST datasets). The MAR reproduced the...

Author(s): K. Benjamin KOUASSI, Adama DIAWARA, K. Yves KOUADIO, Fidèle YOROBA, and Elisée TOUALY

Design and fabrication of 3.60 m3 household plastic bio digester loaded with kitchen waste and cow dung for biogas generation

July 2017

A 3.6 m3  pilot plastic digester for family generation of biogas was designed, constructed and evaluated through physico -chemical studies using 50% cow dung and 50% kitchen wastes. The ash content of waste increased after digestion while the fibre and fat contents of the waste was 5.10 and 1.05% but significantly (p<0.05) decreased to 2.49 and 0.70% after digestion. The carbohydrate content of the waste...

Author(s): Nwankwo, C. S., Eze, J. I. and Okoyeuzu, C.

Determination of the most economic thickness and energy source in the design of local hemispherical clay pots

July 2017

There is currently great emphasis on research regarding various aspects of energy sources but the question of optimum usage of the energy is equally important. This work seeks to produce an economic computer-aided design of a fire-clay pot based on conditions that give minimum cost per unit of usage time for the consumer. A percentage of energy loss from the fuel to the environment due to inefficiency of the heating...

Author(s): C. Fwalo, A. Habanyama, G. T. Baliga and J. K. Pondo

Optimizing the life cycle of an office building at semiarid region

June 2017

Energy consumption by occupants during utilization phase concerns the increase of global warming potential and a shortage of energy resources. Energy consumption in an effective way decreases the risk of global warming. Use of materials with high embodied energy and embodied carbon in building components may improve the energy performance of the building, but it can ameliorate global warming. The issue of Life Cycle is...

Author(s): Pooya Pakmehr and Mustafa Erkan Karaguler

Design and simulation of direct torque control of induction motors using VHSIC Hardware Description Language (VHDL)

June 2017

Induction motors are currently used in many industrial applications. Thus, their control techniques have received a lot of interest. An efficient method of induction motor control is the Direct Torque Control (DTC). It is considered particularly interesting since it is independent of machine rotor parameters and requires no speed or position sensors. This paper presents a simulation of a DTC strategy for three-phase...

Author(s): Cesar da Costa and Christian Oliveira Santin

Evaluation of sustainable urban preservation concept via Ankara Hamamönü example

May 2017

The city identity, taking form with pysical, cultural, socio-economical, historical and stylistic factors, carrying peculiar characteristics in each city, formed by the citizens and their lifestyles, constantly developing and reflecting the sustainable urban concept, is a completion of concepts. Urban identity elements, either they are natural or human artifact, are the witnesses of the past and form our cultural...

Author(s): Funda AÅŸut and Ä°. Raci Bayer

Effect of salinity on transmembrane potential of the roots of Sesuvium portulacastrum (L.) L.

May 2017

Halophytes are plants that complete their life cycle in saline environments. Halophytes can therefore be viewed as potential gene sources for genetic manipulation of economically important crop plants.  In this study the influence of salinity on potential difference (PD) and surface pH of root cortical cells was investigated. The effect of the metabolic inhibitor, potassium cyanide (KCN), on PD of the root cells...

Author(s): B. Moseki

Cytotoxicity of aerial parts of Indigofera heterantha

April 2017

In the ongoing phytochemical study, an effort was made to investigate cytotoxicity of various crude fractions of aerial parts of Indigofera heterantha. The results obtained revealed that all the fractions including n-hexane, ethyl acetate, methanol and residue showed brine shrimp (Artemia salina Leach) cytotoxicity activity. The data obtained revealed the medicinal importance of the plant and will help the researchers...

Author(s): Taj Ur Rahman, Wajiha Liaqat, Khanzadi Fatima Khattak, Muhammad Iqbal Choudhary, Atif Kamil and Muhammad Aurang Zeb

Investigation of attenuation parameters for concrete shielding using simulations through iterative approach and measurement

April 2017

The intensity of the ionizing radiations can be reduced by allowing them to pass through certain materials and such external materials are known as shields. The shielding material is often chosen based on the type and intensity of the radiation. The radionuclides of standard radioactive sources for calibration purpose or therapeutic use, the irradiated components that produce ionizing radiation of high intensity shall...

Author(s): Vidhya Sivasailanathan, Prabhat Kumar and Suresh Sagadevan

A comparative study of the creep behavior of laminated composites: Effect of type of fiber and matrix

March 2017

This paper presents the effect of matrix type on creep behavior at 80% loads of ultimate tensile strength of two laminated composites at different fiber and matrix system. For this, two types of laminated composites were manufactured based on two types of fibers (carbon fabric and glass fabric) with different matrix systems EPOCAST 50-A1 (EP50-A), Epoxy STR (STR) and Epoxy INJ812 (INJ). The tensile and creep behavior of...

Author(s): D. Basaid, C. Aribi, J. Kari, A. Benmounah and B. Safi

Glance at potential future combating of diseases: Bioengineered antimicrobial organisms

March 2017

The incidence of diseases is on the surge as exemplified by the recent occurrence in West Africa of Ebola Virus (EBOV) and increase of Zika Virus in Brazil. These pathogens have evolved strategies to evade the human immune system and thus continue to be globally important human pathogens. Bioengineering capabilities are on the increase with rapid advances in synthetic biology and allied technologies (nanobiotechnology,...

Author(s): Chenjerayi Kashangura,

An effort-based evaluation of pedestrian route choice

February 2017

Route choice is one of the main challenging problems from theoretical and practical viewpoints in the realm of pedestrian behaviour. A prime underlying concern of researchers in this field is to identify criteria or discover principles that pedestrians use to select their routes. Despite the fact that there are infinite possible routes between two given destinations in space, pedestrians in real situations tend to...

Author(s): Fatma Al-Widyan, Ahmed Al-Ani, Nathan Kirchner and Michelle Zeibots

Groundwater resilience to climate change in the Eastern Dead Sea Basin – Jordan

February 2017

Pumping of 82 MCM/yr from Mujib Basin (Eastern Dead Sea), coupled with the 54 MCM/yr recharge rate, has led to diminished groundwater levels and dramatically affects ecosystem services. Climate change compounds these issues by reducing recharge and increasing the ecosystem’s hydrological demand. This paper investigates groundwater resilience to climatic changes in Mujib Basin by modeling resilience for the years...

Author(s): Marwan Alraggad, Bart Johnsen-Harris, Ahmad Shdaifat, Moh`d Kotaiba Abugazleh and Arwa Hamaideh

Water harvesting: Groundwater storage reservoir in Wadi Ishe, Jordan

January 2017

Wadi Ishe pilot project is a trial project set to illustrate the recharge of runoff and storage in an artificial groundwater reservoir to minimize evaporation losses and as a substitute of water supply for rural arid areas that could be used for stock watering and some agricultural activities. The HEC-Hydrologic modeling System was used to estimate the runoff potential. The model in the research will provide...

Author(s): Arwa Hamaideh, Heinz Hoetzl and Marwan Al Raggad

Anomalous modes in Faraday instability

January 2017

This research presents an experimental study on the Faraday instability in one-dimensional cells filled with a mixture of water and glycerol, and for a range forcing frequency between 10 and 60 Hz. It showed that for a particular forcing frequency, whose value depends on the width of the cell, an anomalous surface oscillation arises, that appears as a large wavelength mode oscillating subharmonically with respect to the...

Author(s): Alessio Guarino

Quantum fluctuations of the spacetime geometry in the spectral scheme#

December 2016

The spectral scheme for spacetime geometry is a totally new framework for quantitatively describing the spacetime geometry in terms of the spectra of a certain elliptic operator (typically the Laplacian operator) on the space in question. The central idea of the framework can be symbolically stated as ``Let us hear the shape of the Universe!" There are several advantages of this framework compared to the...

Author(s): Masafumi Seriu

Evaluation of productivity and rates of application of poultry manure for remediation of kerosene oil contaminated soil in Abakaliki, Southeastern Nigeria

November 2016

This experiment was carried out in order to evaluate productivity and rates of poultry manure used to amend kerosene oil contaminated soil on 0.18 ha of land. The land area was contaminated with 5% of kerosene oil equivalent to 50,000 mgkg-1 and thereafter the field laid out using randomized complete block design (RCBD) with four treatments of 10, 20, 30 tha-1 of poultry manure and control which were replicated five...

Author(s): Nwite J. N., Aya F. C. and Okeh C. O.

Thermal treatment in air of direct current (DC) magnetron sputtered TiN coatings

November 2016

TiN coatings were deposited onto mirror polished stainless steel substrates by reactive DC magnetron sputtering using a pure Ti target and Ar+N2 atmosphere. The deposited TiN coatings were thermally treated in ambient air at temperatures ranging from 500 to 700°C for times between 1 and 16 h. The as-deposited and thermally treated coatings were characterized using glow discharge optical emission spectroscopy, x-ray...

Author(s): Fisnik Aliaj, Naim Syla, Heinrich Oettel and Teuta Dilo 

Lessons withdrawn from the diversity of inland valleys cultivation at a regional scale: A case study of Mono and Couffo departments in south Benin

October 2016

In a context of greater climate variability and increasing population pressure, inland valleys are considered as high potential agricultural area. This agricultural potential has been subject to multiple initiatives for characterization which were generally based on the physical characteristics. However, support strategies based on such inventories often fail to fit with the promoters’ expectations. One of the...

Author(s): Luc Ollivier Sintondji, Joël Huat, Elliott Dossou-Yovo, Jean Louis Fusillier, Euloge Agbossou, Justin Djagba and Félix Gbaguidi

A new gateway node for wireless sensor network applications

October 2016

Wireless sensor network based applications have gained a significant importance in recent years. However, it creates problems when sending the detected data over distant stations even though establishment of sensor networks by means of ZigBee communication modules as the communication range of these modules are limited. For this reason, in this study, design of a gateway node which can be used in the sensor network...

Author(s): Murat Dener

Dynamic modelling and predictive health monitoring for vibration control and resonance of rotating machinery

October 2016

The aim of this study is to investigate the critical speed analysis and response of a rotating machinery. The search for increasingly high performances in the field of the vibration phenomena which is subject rotor are increasingly important and can lead to system instability. The use of the finite element method makes to establish dynamic equations of the movement. Numerical calculations of the model developed, can...

Author(s): A. Chellil, I. Gahlouz, S. Lecheb, S. Chellil, A. Nour and H. Mechakra

Evaluation of reinforced concrete buildings in Northern Cyprus using TEC2007 and EC8 in respect of cost estimation

October 2016

Cyprus lies in a seismic zone and the whole island (northern and southern part of the island) can be considered as an earthquake vulnerable area. In the last years, earthquake design of reinforced concrete structures becomes an important phenomenon due to unfortunate earthquakes. This amplifies the need to make such buildings earthquake resistant at a reasonably low cost. Most of the buildings are mid-rise reinforced...

Author(s): Rifat ReÅŸatoÄŸlu and Rami S. Atiyah

Bayesian analysis to detect change-point in two-phase Laplace model

September 2016

The general form of the change-point problem is to determine the unknown location m, based on an ordered sequence of observations X1,X2,.., Xm, Xm+1,..., Xn such that, the two groups of observation X1,X2,.., Xm and Xm+1,..., Xn follow distinct models. In this paper the problem of change-point detection of two-phase Laplace model is considered. Our object is to find...

Author(s): A. Jafari, M. Yarmohammadi and A. Rasekhi

Slow translation of Tropical Africa’s wealth in medicinal plants into the clinic: Current biomolecular infrastructural capacity and gaps in sub-Saharan universities

September 2016

Tropical Africa has one of the world’s largest endowments in medicinal plant diversity. However, this potential has not been translated into pure drugs of proven efficacy and safety synonymous with modern pharmaceuticals. The basis for the slow translation of Tropical Africa’s medicinal plant wealth into value-added medicines acceptable in the doctor’s clinic is not clear. In this work, we sought to...

Author(s): Pakoyo Fadhiru Kamba, Edson Ireeta Munanura, Bruhan Kaggwa, Stephen Lutoti, Herbert Bush Aguma and Richard Odoi Adome

Analysis of the environmental effects of international outsourcing: Study of the iron casting industry

August 2016

The international outsourcing of intermediate products is a common practice in manufacturing. Although outsourcing labor- and resource-intensive production to developing countries is based on financial motives, the decision should also be evaluated from an environmental perspective at a global scale. In this study, the environmental effects of four supply chain scenarios are analyzed through a life-cycle assessment...

Author(s): Mehmet Emre Bahadir

Exploring the road to improving knowledge and access to female condom in Nigeria: Evidence from Edo, Delta and Lagos states

August 2016

The female condom is a relatively new product that is intended to serve the dual role of protecting against unwanted pregnancy and sexually transmitted infections (STI). Very few studies have been conducted on the use of female condom in Nigeria. Therefore, information is lacking about its continued use, particularly among women at high risk of HIV and other STI. With the above consideration, the Society for Family...

Author(s): Jamilah Mohammed-Jantabo, Richard Olukolade and Samson B. Adebayo,

Exploring the association between diabetes mellitus and hearing loss: Genetic mutation, neuropathy and microangiopathy

July 2016

Diabetes mellitus (DM) has progressively increased in global prevalence. Recent studies have found that patients with DM may suffer from hearing impairment as a chronic complication. The effect of hearing loss may impair the quality of life of patients which affects functional, social, as well as psychological aspects. Both DM and hearing loss are considered to be associated, although this correlation remains elusive....

Author(s): Muhammad Firman Akbar

Modeling of compound layer growth during nitriding of pure iron

July 2016

This paper presents a physical model which describes the layer growth kinetics and the nitrogen concentration profiles during gaseous or plasma nitriding of pure iron. The model is related to a one dimensional moving boundary value problem where the initial concentration profiles are assumed to be linear and a new boundary condition at the diffusion zone is proposed. The model is solved by using a classical finite...

Author(s): Ernesto Manuel Hernández, José Antonio Otero, Antonio Jiménez, Rubén Darío Santiago, Raúl Martínez, Francisco Castillo and Joaquín Esteban Oseguera 

New methodology for microarray spot segmentation and gene expression analysis

June 2016

DNA microarray analysis is the main core in genome mapping. Each microarray image contains millions of information about genes. Microarray analysis is considered one of the most recent and important technologies in exploring the genome. One of the key steps in microarray analysis is to extract gene information from the gene spots, these information represent gene expression levels in the microarray. This paper proposes...

Author(s): Amjad A. Hudaib, Hussam N. Fakhouri and Rawan Ghnemat

Simple identification of a parallel resonance transfer function in power systems using a frequency response technique

June 2016

This paper proposes frequency response based identification of a parallel resonance transfer function in power systems including capacitor banks for power factor improvement. The proposed method is simple and easy to understand by finding undetermined coefficients. Only magnitudes of measured harmonic currents for some orders of both source and load are required. Validation of the proposed method is given in frequency...

Author(s): Wanno Yeetum and Vijit Kinnares

Optimizing the process of developing E-government website using decision support system

May 2016

The purpose of this paper was to address the issue of E-government website evaluation regarding the provision of a decision-making framework built around the concepts of website evaluation. The proposed framework deploys a Bayesian Belief Network (BBN) to conquer the subjectivity and inaccuracy that characterizes the conventional models for E-government website quality assessment. Since the developments of E-government...

Author(s): Osama Mohammad Rababah, Mohammad Alshraideh, Mohammad A. M. Abushariah, Saher Manaseer and Maged AlQisi

Avoiding potential greenhouse emissions by using local materials in housing construction: A case study in Colombia

May 2016

Housing in Colombia, especially social housing, has been a priority issue for governments in recent years; however, it is necessary to consider building more sustainable homes with less environmental impact using local material as opposed to building with conventional materials. Based on these needs, this research aimed to evaluate the potential environmental impact of social housing by predominantly using local...

Author(s): Morales-Pinzón T., Flórez-Calderón M. T. and Orozco-Gómez I. E.

Sentiment analysis as a way of web optimization

April 2016

Web optimization is the process of optimizing the web to increase visibility or rank of websites in search engines. Furthermore, this process is also viewed from multiple perspectives, from optimizing inter-server communication that offers the best responses to users’ queries and provides targeted advertisements to users of a website. With this regard, the process of automatic classification and information...

Author(s): Osama M. Rababah, Ahmad K. Hwaitat, Dana A. Al Qudah

Strain field determination using displacement gradient model and unified least-squares technique

April 2016

Deformation analysis is crucial to applications in geodesy, structural engineering, and geology, of which the main goal is to detect the behaviors of a deformed body. Traditional deformation analyses rely on a limited number of observations and thus give a relatively poor description of the strain field on the entire object. In this study, a method based on the displacement gradient model and unified least-squares...

Author(s): Yi-Chun Lin and Jen-Yu Han

Availability and morphological characteristics of endophytic fungi held in different methods of preservation

March 2016

Maintenance of microorganisms in mycology is of fundamental importance for retrospective and prospective studies that focus on their biology, etiology and epidemiology. The aim of this study was to evaluate the viability, contamination and morphological changes of endophytic fungi maintained under different preservation methods. We evaluated five preservation methods; constant sub-culturing, preservation under mineral...

Author(s): Ana Karla Lima Freire, Amaury dos Santos Bentes, Ivanete de Lima Sampaio, Alita Moura de Lima, Luciana Fujimoto Botineli, Liliane Coelho da Rocha, João Braga de Souza, and Érica Simplício de Souza

Characterization of rain-fed maize-based vegetable production systems in Northern Ghana

March 2016

The study was conducted in Northern Ghana comprising of the Northern, Upper East and Upper West regions. The objective of the study was to analyse maize-based rain-fed vegetable production systems with a view to explore their potential to contribute to food and income security for rural households. A combination of qualitative and quantitative data collection methods were employed during the study. Questionnaires were...

Author(s): Yakubu Balma Issaka, Judith Seidu, and Abdou Tenkouano

Influence of Samarium Oxide ions on structural and optical properties of borate glasses

March 2016

We have successfully synthesized Samarium oxide (Sm2O3) doped borate glasses by conventional rapid melt quench method. The prepared batch was melted at suitable transition temperature and to improve the crystalline phases, glass was kept at 500°C for 7 h. The X-ray diffraction (XRD) pattern identified the amorphous nature of glass and photoluminescence emission properties proved the optical properties of Sm2O3 doped...

Author(s): Deepa A. V., Priya M. and Suresh S.

On the computational fluid dynamics (CFD) analysis of the effect of jet nozzle angle on mixing time for various liquid heights

February 2016

In the present work, the effect of nozzle angle (22.5º, 45º and 67.5º) on mixing time for jet mixing tanks with the various ratios of liquid height (H) to tank diameter (D), including 0.5, 1, and 1.5, are studied by using computational fluid dynamics (CFD). The results revealed that CFD model with standard k-epsilon is successfully employed to predict the concentration profiles and mixing time by using...

Author(s): Eakarach Bumrungthaichaichan, Nattawat Jaiklom, Apinan Namkanisorn and Santi Wattananusorn

Modeling teachers' influence on learners' self-directed use of electronic commerce technologies outside the classroom

February 2016

Nowadays, Electronic Commerce (EC) course is becoming one of the most important taught courses at all business schools due to increased businesses over the Internet network by utilizing all available technologies. However, the success of such courses cannot be measured by number of students who pass or fail but rather by how such courses influence and can change the daily life of these students. Previous literature...

Author(s): Mahmoud M. Maqableh, Ashraf B. Mohammed and Ra&#;ed (Moh’d Taisir) Masa&#;deh

Theoretical framework for social network marketing based on genetic algorithm

February 2016

The social network played recently a major role as communication media in our daily life as it allows individuals to interact with one another and build relationships. When products or companies advertise on the social network, they expect that their product or advertisement reaches its target. Social networks is a hot research topic that has received great interest in the recent years due to its wide spreading and...

Author(s): Osama Mohammad Rababah, Thair Hamtini, Hussam Nawwaf Fakhouri, Amjed Hudeb, and Ahmad Hwaitat

Femur neck insufficiency fracture in an adolescent associated with vitamin D deficiency

January 2016

The study reports a case of 14-year-old female child who was not participating in any athletic activities, and presented with gradual onset of left side hip and groin pain since 8 months duration. Clinical and radiological evaluation showed medial-sided femur neck insufficiency fracture associated with vitamin D deficiency. Femur neck insufficiency fractures are rare entity in children; usually result from overuse...

Author(s): Omar Q. Samarah, Tareq M. Tareef, Fadi A. Al hadidi, and Azmy M. Al hadidy,

The determinants of the adoption behaviour of women azolla (Azolla pinnata) farmers in Coochbehar District of West Bengal

January 2016

Adoption behaviour may be reflected as the predisposition of the behaviour of an individual during the adoption process of any innovation. Here, in the present study, the respondents were women stakeholders selected through panchayat. The study analysed their adoption behaviour towards azolla cultivation because the scientific azolla cultivation has been taken up as the innovation in terms of which the adoption...

Author(s): V. Sarkar, A. Saha, K. Pradhan and A. Ghosh

Shoot demography of some evergreen and deciduous tree species of Kumaun Himalaya, India, along an altitudinal gradient

January 2016

The shoot diameter and shoot length extension growth studied in 10 tree species occurring between 350 to 2500 m elevation in the Kumaun Himalaya. Effects of temperature on shoot growth were studied under natural conditions. Shoot length growth was significantly affected by the temperature during shoot elongation (p<0.01). The optimum temperature for elongation was ranged from 21 to 36°C across the altitudinal...

Author(s): Sanjay Kumar, Raksha Pande and Deepshikha Arya

Studies on chemical solutions and storage duration on keeping quality of cut gladiolus (Gladiolus grandiflorus L.) spikes (‘White Prosperity’)

December 2015

The experiment was carried out to investigate the effect of different chemical solutions (C1= sucrose (20%) + [Al2 (SO4)3 .-16H2O  300 ppm], C2= sucrose (20%) + [Al2 (SO4)3 .-16H2O] 300 ppm + GA3 50 ppm and C3= Control (Distilled water)) and five storage durations viz., (S0 = 0 days, S1 = 7 days, S2 = 14 days, S3 = 21 days and S4 = 28 days) on keeping quality of cut spikes of gladiolus ‘White...

Author(s): Z. A. Bhat and M. Q. Sheikh

Influence of fertility levels and weed management practices on yield and yield attributes of rain-fed maize

December 2015

Investigating the response of rain-fed maize to fertility levels and weed management practices, a field trial was undertaken in 2012 and 2013 at Experimental Farm, D(K)ARS, SKUAST-Kashmir, (J&K). The experiment consisted of 3 fertility levels and 4 weed management practices. The results revealed that fertility levels F3 and F2 at par with one another recorded significant increase in cob length, number of cobs...

Author(s): S. Gul and B. A. Khanday

Synthesis and characterization of copper metal soaps from Thevetia peruviana and Hura crepitans seed oils

December 2015

Thevetia peruviana (TP) and Hura crepitans (HC) seed oils with 73 and 65% unsaturation, respectively as analyzed by gas chromatography-flame ionization detector (GC-FID) chromatogram were used for the synthesis of copper metal salt. The sodium carboxylate (soluble soap) prepared from the oils by saponifying with sodium hydroxide were reacted with solution of copper salt to produce the metal soaps. The yield was...

Author(s): Joseph Bodunde Owolabi, Kazeem Adelani Alabi and Labunmi Lajide

Effects of streptozotocin diabetes on the ultrastructure of astrocytes in the cervical enlargement of rat spinal cord

November 2015

A chronic complication of diabetes mellitus (DM), diabetic neuropathy, causes neurodegeneration leading to the development of neuropathic pain and sensation loss, particularly in the hands and arms. The cervical enlargement of the spinal cord sends the nerve supply to the hands and arms. Moreover, astrocytes effectively provide structural and functional maintenance of neurons in the spinal cord. Nevertheless, there is...

Author(s): Sirinush Sricharoenvej, Amornrat Chookliang, Passara Lanlua and Chittapon Juntararussamee

Photoplethysmogram second derivative review: Analysis and applications

November 2015

Photoplethysmogram (PPG) and its second derivative of the photoplethysmogram (SDPTG) are simple and low cost optical techniques for detecting and tracking blood volume changes. The PPG waveform and its SDPTG have been used by many scholars to obtain valuable information about heart and cardiovascular system. Since PPG and SDPTG reflect blood volume changes, much work has been done on its application as a diagnostic tool...

Author(s): Yousef K. Qawqzeh, Rubins Uldis and Mafawez Alharbi

Biochemical studies on Ziram induced acute, subacute and subchronic toxicity in broiler chicken

October 2015

The present experimental work was conducted to elucidate the biochemical changes in broiler chicken after ziram intoxication. For the study, 150 apparently healthy broiler chicks were reared together up to 2 weeks of age and thereafter allocated randomly to four groups, that is, control (n=30), acute (n=10), subacute (n=20) and subchronic (n=90). Toxicity was induced following single oral dose of Ziram at 100 mg/kg body...

Author(s): Majid Shafi, Shayaib Ahmad Kamil, Masood Saleem Mir, Sheikh Adil, Mohammad Maqbool Darzi and Abdul Shakoor Bhat

The effect of the spinodal curve condition on J – T inversion curves for van der Waals real gas

October 2015

This paper examines a consequence of spinodal curve condition on the Joule – Thomson inversion curves, for van der Waals real gas. To this end, we consider the differential form of Joule – Thomson coefficient, and concentrate on the parametrical algebraic equation of the corresponding family of curves in a P – V Cartesian frame of reference.  The aim of this work is not the prediction of Joule...

Author(s): J. Venetis

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