Margiad Williams

ORCID: 0000-0001-8581-8669
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Child and Adolescent Psychosocial and Emotional Development
  • Family and Disability Support Research
  • Early Childhood Education and Development
  • Child and Adolescent Health
  • Child Nutrition and Feeding Issues
  • Parental Involvement in Education
  • Child Abuse and Trauma
  • Bullying, Victimization, and Aggression
  • Autism Spectrum Disorder Research
  • Maternal Mental Health During Pregnancy and Postpartum
  • Plant tissue culture and regeneration
  • Magnetic Bearings and Levitation Dynamics
  • Infant Development and Preterm Care
  • Diabetes Treatment and Management
  • Diabetes Management and Research
  • Electric Motor Design and Analysis
  • Chromosomal and Genetic Variations
  • Ion channel regulation and function
  • Cardiac electrophysiology and arrhythmias
  • Child Development and Digital Technology
  • Plant Virus Research Studies
  • RNA regulation and disease
  • Nicotinic Acetylcholine Receptors Study
  • Sensorless Control of Electric Motors
  • Diabetes, Cardiovascular Risks, and Lipoproteins

Bangor University
2016-2025

University of Montenegro
2024

Oxford Policy Management
2024

University of Oxford
2024

University of Cape Town
2024

University of Wales Institute Cardiff
2017

Cardiff University
2000-2017

DuPont (United States)
2008

Wilmington University
2008

Joslin Diabetes Center
1995-2008

W e have cloned overlapping cDNAs encoding alE Ca2+channel subunits from mouse and human brain.W observed that these transcripts were widely distributed in the central nervous system.W also demonstrated existence of two variants a,, subunit.Comparison sequence al, to those other species suggests at least four alternatively spliced exist.Expression HEK293 cells Xenopus oocytes produced high voltage-activated Ca2+ currents inactivated rapidly (T "20 ms 0 mv).The size obtained enhanced -40-fold...

10.1016/s0021-9258(17)31796-9 article EN cc-by Journal of Biological Chemistry 1994-09-01

This paper presents a design and analysis framework for the general class of permanent magnet electric machines. In authors' analysis, surface-mounted linear motors consisting magnets ironless current-carrying coils are treated in uniform way via magnetic vector potential. is developed to novel levitators driving precision motion control stages such as those used wafer steppers. For one motor structure, they give analytical formulae its field, force, flux linkage, inductance winding, back...

10.1109/28.491486 article EN IEEE Transactions on Industry Applications 1996-01-01

This paper presents a design and analysis framework for the general class of permanent magnet electric machines. In analysis, two-dimensional linear or planar motors consisting magnets current-carrying coils are treated in uniform way via magnetic vector potential. is developed order to novel driving precision motion control stages such as those used wafer steppers. For one motor structure authors give analytical formulae its field, flux linkage, inductance winding, back electromotive force...

10.1109/ias.1994.377471 article EN 2002-12-17

Parenting programs have proven effective in reducing disruptive child behavior. However, not all families benefit equally, and, to date, we little insight into who benefits more or less and why. One possible solution is explore how different potential moderators cluster together individual whether such family profiles predict from these programs. This study explores (a) family, child, parenting risk factors for behavior enrolled the popular evidence-based Incredible Years Program using...

10.1037/fam0001275 article EN cc-by-nc-nd Journal of Family Psychology 2025-01-16

This paper describes the social architecture model of school-based bullying behavior. The proposes that behavior all students affects rates bullying. Alongside self-reported victims and bullies, identified four bystander roles: assistant, reinforcer, outsider, defender. level support for bullies varies based on school policies address promote connectedness. universal components KiVa anti-bullying program designed to teach pupils stand against are described. Stand Together trial, a UK-based...

10.3390/bs15020236 article EN cc-by Behavioral Sciences 2025-02-19

The authors demonstrate that the Halbach array is highly applicable for magnetic excitation in synchronous machines. To this end, they present geometry of arrays Cartesian, polar, and cylindrical coordinates. They also design a Cartesian linear motor which has been optimized use conjunction with class high-precision suspension stages photolithography. give analytical solutions motor's fields, forces, commutation structure, power dissipation. Results power-optimum thickness stator windings...

10.1109/ias.1993.298897 article EN 2002-12-30

Since dietary protein increases urinary dopamine (DA) excretion in animals, this study was undertaken to assess the role of DA production acute changes renal function following ingestion man. Excretion DA, sodium, potassium, water, solute, and creatinine were measured six normal men 30-min intervals over 5 h after oral and/or carbidopa, an inhibitor formation from 3,4-dihydroxyphenylalanine (DOPA). Overall, increased 50% (P = 0.031) while carbidopa reduced it 70% less than 0.0001), although...

10.1172/jci112763 article EN Journal of Clinical Investigation 1986-12-01

Summary Background Early risk factors for poor child outcomes are well established, and some group parenting programmes have demonstrated good children under 3 years of age. This randomized controlled trial evaluated the effectiveness Incredible Years® Toddler Parenting Programme with parents 1‐year‐old 2‐year‐old recruited by staff in disadvantaged Flying Start areas across Wales. Methods Eighty‐nine families a aged between 12 36 months at baseline participated pragmatic community‐based...

10.1111/cch.12415 article EN Child Care Health and Development 2016-10-05

URF13, the product of mitochondrial T-urf13 gene, confers on Texas cytoplasmic male-steril maize (Zea mays L.) a unique susceptibility to fungal pathogen (Bipolaris maydis race T) and sensitivity its pathotoxin. Expression URF13 in Escherichia coli imparts pathotoxin bacterium. We show by ion uptake studies E. that pathotoxin-URF13 interaction causes membrane permeability. Similarly, dysfunction caused permeabilization probably accounts for increased colonization carrying cytoplasm...

10.1073/pnas.86.12.4435 article EN Proceedings of the National Academy of Sciences 1989-06-01

Behavior problems in children with autism spectrum disorders (ASD) are common and particularly stressful for parents. This study aimed to examine the feasibility of delivering a parenting program existing services, conducting future large‐scale Randomized Controlled Trial evaluation effectiveness intervention. Parents aged 3–8 years diagnosis ASD, or strongly suspected ASD were eligible participate. A multicenter, pragmatic, randomized controlled trial was conducted four specialist...

10.1002/aur.2265 article EN Autism Research 2020-01-21

Callus cultures were initiated from immature embryos of three dent corn inbred lines: FR27rhm (B73 derivative), 79-R4443, and EXL1; four sweet (sh-2) f84-267, f84-275, f84-278, f84-700. Extensive qualitative variation was noted in self-pollinated progeny plants regenerated callus FR27rhm, EXL1, f84-700; quantitative measured almost all inbreds. Most mutations visible the first generation; chimerism indicated by initial segregation some mutants after two self-pollinations. All culture-induced...

10.1139/b87-061 article EN Canadian Journal of Botany 1987-03-01

The URF13 protein, which is encoded by the maize mitochondrial T-urf13 gene, thought to be responsible for pathotoxin and methomyl sensitivity male sterility. We have investigated whether confers toxin sterility when expressed in another plant species. coding sequence of was fused a targeting presequence, placed under control cauliflower mosaic virus 35S promoter, introduced into tobacco Agrobacterium tumefaciens-mediated transformation. Plants expressing high levels were sensitive....

10.1073/pnas.92.4.1167 article EN Proceedings of the National Academy of Sciences 1995-02-14

The nucleotide sequence for human myelin-associated glycoprotein (MAG) and its deduced amino acid sequence, obtained by analysis of two overlapping cDNA clones isolated from a brain library, is presented compared to that reported rat MAG. provides an open reading frame 1,878 nucleotides encoding peptide 626 acids with calculated molecular weight 69.1 kD. It 89% homologous in the large isoform MAG, 95% homology sequence. contains 9 potential glycosylation sites, one more than rat, shares...

10.1002/jnr.490240203 article EN Journal of Neuroscience Research 1989-10-01

Depression is a common and debilitating illness there strong association between maternal depression childhood Conduct Disorder (CD). This paper examines the impact of on outcome treatment for prevention CD. Data from Hutchings et al. (2007) Randomised Controlled Trial (RCT) parenting programme parents high-risk three four year olds are used to explore potential role change in as mediator child behaviour outcome. The positive an additional was also examined due previous research findings....

10.4236/psych.2012.329120 article EN Psychology 2012-01-01

This paper reports on outcomes for the Incredible Years (IY) parent programme with parents of 8-13 year olds. The sample consisted 280 children at risk adolescent antisocial behaviour, mean age 10.3 years. Paired t tests both per protocol (t(113) = 8.41, p < .001) and intention-to-treat (t(258) 7.37, data found significant improvements in child behaviour problems (ECBI). Statistically were also parental depression parenting skills. School Aged is effective improving competencies mental...

10.1111/j.1475-3588.2010.00590.x article EN Child and Adolescent Mental Health 2011-03-01

10.1136/adc.43.228.204 article EN Archives of Disease in Childhood 1968-04-01

Abstract The quality of parenting program implementation significantly affects the extent to which a is delivered effectively as well likelihood it becoming embedded in everyday services. group based Parenting for Lifelong Health Young Children (PLH-YC) parents children aged 2–9 years was developed specifically low- and middle-income contexts, has been tested five randomized trials, incorporates number strategies encourage fidelity delivery. This paper reports on introduction PLH-YC...

10.1007/s11121-024-01682-x article EN cc-by Prevention Science 2024-05-17
Coming Soon ...