title: Domain and range operations in semigroups and rings

authors: Stokes, Tim E.

subjects: Science & Technology

abstract: A D-semigroup S is a semigroup equipped with an operation D satisfying laws asserting that for a ∈ S, D(a) is the smallest e in some set of idempotents U ⊆ S for which ea = a. D-semigroups correspond to left-reduced U-semiabundant semigroups. The basic properties and many examples of D-semigroups are given. Also considered are D-rings, whose multiplicative semigroup is a D-semigroup. Rickart *-rings provide important examples, and the most general D-rings for which the elements of the form D(a) constitute a lattice under the same meet and join operations as for Rickart *-rings are described.

text: Domain and range operations in semigroups and rings A D-semigroup S is a semigroup equipped with an operation D satisfying laws asserting that for a ∈ S, D(a) is the smallest e in some set of idempotents U ⊆ S for which ea = a. D-semigroups correspond to left-reduced U-semiabundant semigroups. The basic properties and many examples of D-semigroups are given. Also considered are D-rings, whose multiplicative semigroup is a D-semigroup. Rickart *-rings provide important examples, and the most general D-rings for which the elements of the form D(a) constitute a lattice under the same meet and join operations as for Rickart *-rings are described.

year: 2015

title: Saudi secondary school science teachers' perceptions of the use of ICT tools to support teaching and learning

authors: Almaghlouth, Osamah Abdulwahab D.

subjects: ICT

abstract: This research was conducted to investigate the Saudi science teachers' perception of the
use of Information and Communication Technology (ICT) tools to enhance teaching and
learning and undertake a small and groundwork examination of these teachers current use
of ICT.
It draws on the interpretive paradigm (Cohen  Manion, 1994), where the focus is on
how people interpret and make sense of their world. From this interpretive perspective
the beliefs of Saudi secondary school science teachers, in relation to the benefits of ICT,
their current use of ICT and their perceived needs for improvement in the use of ICT in
the classroom were investigated.
Saudi secondary schools science teachers from both girls' and boys' schools in three
different types of schools have been involved in this study. There were 28 government
schools (9 girls' and 19 boys' schools), four small schools in rented premises (2 girls'
and 2 boys' schools) and four Aramco schools (1 girls' and 3 boys' schools). These
schools were in different districts: Aldammam city, Alkhobar city, Aldahran city,
Alqateaf city and Sufwa city. The teachers were asked to voluntarily participate in the
study and 131 teachers out of 200 (86 male and 45 female, 65 %) completed the
questionnaire. Analysis of the data, together with the relevant literature builds a picture
of the use of ICT in science education. Providing ICT hardware and software resources to
a school is not enough to ensure significant developments in use of ICT for teaching and
learning in Saudi science classrooms. Access to working ICT continues to be an issue for
these teachers. Although teachers identified many benefits to teachers and students from
using ICT and had made individual efforts to develop their use of ICT for admin
planning and lesson preparation, they also identified barriers. These barriers focused on a
lack of appropriate professional development and technical support.
The findings have implications for future development in the area of ICT. It is expected
that the results of the research will guide future research and development in the country
and outline the importance of the use of information and communication technology in
education for teachers, students, parents and decision-makers. It will contribute
information towards decision-making and planning in future projects.

text: Saudi secondary school science teachers' perceptions of the use of ICT tools to support teaching and learning This research was conducted to investigate the Saudi science teachers' perception of the
use of Information and Communication Technology (ICT) tools to enhance teaching and
learning and undertake a small and groundwork examination of these teachers current use
of ICT.
It draws on the interpretive paradigm (Cohen  Manion, 1994), where the focus is on
how people interpret and make sense of their world. From this interpretive perspective
the beliefs of Saudi secondary school science teachers, in relation to the benefits of ICT,
their current use of ICT and their perceived needs for improvement in the use of ICT in
the classroom were investigated.
Saudi secondary schools science teachers from both girls' and boys' schools in three
different types of schools have been involved in this study. There were 28 government
schools (9 girls' and 19 boys' schools), four small schools in rented premises (2 girls'
and 2 boys' schools) and four Aramco schools (1 girls' and 3 boys' schools). These
schools were in different districts: Aldammam city, Alkhobar city, Aldahran city,
Alqateaf city and Sufwa city. The teachers were asked to voluntarily participate in the
study and 131 teachers out of 200 (86 male and 45 female, 65 %) completed the
questionnaire. Analysis of the data, together with the relevant literature builds a picture
of the use of ICT in science education. Providing ICT hardware and software resources to
a school is not enough to ensure significant developments in use of ICT for teaching and
learning in Saudi science classrooms. Access to working ICT continues to be an issue for
these teachers. Although teachers identified many benefits to teachers and students from
using ICT and had made individual efforts to develop their use of ICT for admin
planning and lesson preparation, they also identified barriers. These barriers focused on a
lack of appropriate professional development and technical support.
The findings have implications for future development in the area of ICT. It is expected
that the results of the research will guide future research and development in the country
and outline the importance of the use of information and communication technology in
education for teachers, students, parents and decision-makers. It will contribute
information towards decision-making and planning in future projects.

year: 2008

title: Iwi, institutes, societies & community led initiatives

authors: Whaanga, Hēmi

abstract: With the rapid evolution, innovation and incredible growth of ICT, the avenues to exchange, access, manage, create, disseminate, display and research Indigenous data and Mātauranga Māori have increased at astounding rates. This generation, often referred to as ‘digital natives', ‘homo zappiëns’, ‘Net generation’, ‘millennials’, ‘i-generation’ (see, for example Akçayır, Dündar, & Akçayır, 2016; Kirschner & De Bruyckere, 2017; Prensky, 2001; Yong & Gates, 2014), have been raised, immersed and exposed to a myriad of digital technologies, video games, computers, digital music players and cellular phones during their brief lifetimes. Technologies have dramatically transformed how each generation access, communicate, share knowledge, distribute and view information. Social networks like Facebook, YouTube, Instagram, Twitter, Reddit, Pinterest, Tumblr and social networking apps such as Messenger, WhatsApp, WeChat, QQ Chat, QZone, Viber, LINE, and Snapchat, with billons of active users per month, are as familiar to this generation as was the radio, television and landline telephones to the Baby Boomers who grew up with pre-cellphone mobile technology.

text: Iwi, institutes, societies & community led initiatives With the rapid evolution, innovation and incredible growth of ICT, the avenues to exchange, access, manage, create, disseminate, display and research Indigenous data and Mātauranga Māori have increased at astounding rates. This generation, often referred to as ‘digital natives', ‘homo zappiëns’, ‘Net generation’, ‘millennials’, ‘i-generation’ (see, for example Akçayır, Dündar, & Akçayır, 2016; Kirschner & De Bruyckere, 2017; Prensky, 2001; Yong & Gates, 2014), have been raised, immersed and exposed to a myriad of digital technologies, video games, computers, digital music players and cellular phones during their brief lifetimes. Technologies have dramatically transformed how each generation access, communicate, share knowledge, distribute and view information. Social networks like Facebook, YouTube, Instagram, Twitter, Reddit, Pinterest, Tumblr and social networking apps such as Messenger, WhatsApp, WeChat, QQ Chat, QZone, Viber, LINE, and Snapchat, with billons of active users per month, are as familiar to this generation as was the radio, television and landline telephones to the Baby Boomers who grew up with pre-cellphone mobile technology.

year: 2017