Physical Sciences and Engineering

Carbon- nanomaterials based electrochemical and biosensor have been taken a great attention as robust materials for drug, pesticides and heavy metal sensing. The materials are like graphene, reduced graphene oxide, single wall and multiwall carbon nanotubes due to their excellent modifiable sidewalls, biocompatibility, high stability, high surface area, electrical and thermal conductivities as well as high mechanical strength.

Multi-label text categorization is an important modern text mining task. The large number of feature in text datasets degrades the performance of text classification. However, multi-label text often has more noisy, irrelevant and redundant features with high dimensionality. A large amount of computational time is required to classify a large number of text documents of high dimensional. The problem is much difficult in Arabic due to complex nature of the Arabic language, which has a very rich and complicated morphology.

Gari is cassava flour widely used in West Africa, more specifically in Benin. The transformation of cassava into Gari involves several stages. The pressing step is one of the steps to remove hydrocyanic acid from the pulp, multiply microorganisms and help increase the palatability of Gari. Pressing equipment is made of metals which negatively impact the environment because their welding requires energy consumption and generates waste (toxic gases, electrode residues and iron filings).

The use of mobile technologies and applications provides teachers a wide range of possibilities, both, in the teaching process and the assessment for learning. Nowadays, there are several applications to support the whole teaching-learning process, such as Kahoot, Socrative, Plickers, Gosoapbox, iClicker, etc. In this context, this paper aims at describing the potential of Quizizz as a valuable tool in education, taking into consideration that the use of quiz-type applications, if well planned, can motivate students, drawing their attention to achieve better results in the classroom.

RFID vehicle parking and payment system using android. The manual work of parking and payment is reduced making it very easy to tag a vehicle by using RFID tracker to identify the user details and deduct amount from his/her wallet. This System makes the work easier such as booking the slot, paying the amount. Whenever the car enters the parking base, the user information in the RFID tag is read by the RFID reader and the starting time/entering time of the user details is sent to the admin.

Work can have a negative and direct impact on workers' health, in many different ways, especially in the posture and execution of repetitive movements. Thus, the purpose of this opinion article is to describe the benefits of an intervention within the workplace, the workplace gymnastics.

Background: Volleyball is one of the most widely played sports in addition to football and basketball. International de Volley-Ball Federation (FIVB) represents about 800 million players in approximately in the world played volleyball. While a large body of research has been conducted regarding the nature and prevalence of volleyball injuries internationally, but not conducted in Ethiopia broadly.

In this paper, we propose an innovative concept of "Application Service Provider LMS (ASP LMS)" which promotes the opening and the interoperability of the learning management systems (LMS) and the sharing of learning services and resources. The goal of this opening is to make the interaction between systems easier, to facilitate the sharing of resources and services between systems. With the introduction of this economic model this system widens the market of the Open and Distance Learning (ODL).

We are using light waves formed using transducers for the projection of 7D holograms. Using this we will be literally touching the 7D virtualization of light waves. By using the concept of ultrasonic transducers the combinations so formed combined with 7D hologram with respect to the angles associated with it will give the resultant touch feel.

Trata-se de um artigo de opinião sobre competências básicas para valorização do profissional de enfermagem. A enfermagem é permeada por imagens estereotipadas e primitivas, percepções errôneas que derivam da história da profissão e que se perpetuam até os dias de hoje. A importância desse reconhecimento encontra-se, entre outros, na influência que a valorização da profissão, em suas variadas dimensões, tem no desempenho profissional. Sugere-se a implementação de três competências básicas: o conhecimento em enfermagem, atitude profissional e autoconfiança.