Results 61 to 70 of about 529,470 (307)

Age-related cellular copper dynamics in the fungal ageing model Podospora anserina and in ageing human fibroblasts. [PDF]

PLoS ONE, 2009
In previous investigations an impact of cellular copper homeostasis on ageing of the ascomycete Podospora anserina has been demonstrated. Here we provide new data indicating that mitochondria play a major role in this process.
Christian Q Scheckhuber, Jürgen Grief, Emmanuelle Boilan, Karin Luce, Florence Debacq-Chainiaux, Claudia Rittmeyer, Ricardo Gredilla, Bernd O Kolbesen, Olivier Toussaint, Heinz D Osiewacz   +9 more
doaj   +1 more source

Low zinc status and absorption exist in infants with jejunostomies or ileostomies which persists after intestinal repair. [PDF]

, 2012
There is very little data regarding trace mineral nutrition in infants with small intestinal ostomies. Here we evaluated 14 infants with jejunal or ileal ostomies to measure their zinc absorption and retention and biochemical zinc and copper status. Zinc
Abrams, Steven A, Balay, Kimberly S, Chen, Zhensheng, Griffin, Ian J, Hawthorne, Keli M, Hicks, Penni D   +5 more
core   +4 more sources

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Zinc and Copper Levels in Patients with Primary Hypertension and Normotension [PDF]

, 2015
One of the causes of primary hypertension is an exposure to free radicals. The formation of free radicals in the body can be prevented by taking antioxidants. Zinc and copper are cofactors of endogenous antioxidant enzyme superoxide dismutase. This study
Adriani, M. (Merryana), Suryana, A. L. (Arinda), Wirjatmadi, B. (Bambang)   +2 more
core  

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Techno-typological and use-wear insights on the chipped stone items discovered in the Glina Tell (in 1969)

Materiale și Cercetări Arheologice
In the collections of the Institute of Archaeology in Iași are stored various artefacts originating from the 1969 excavations from the Glina – La Nuci tell.
Vornicu, D., Minea, B.
doaj   +1 more source

Disseminated sulphide mineralisation at Garbh Achadh, Argyllshire, Scotland [PDF]

, 1978
A brief investigation of low-grade copper mineralisation associated with a small, talc-alkaline porphyry intrusion of Caledonian age is described.
Ellis, R.A., Fortey, N.J., Marsden, G.R.
core  

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Evaluation of serum copper and iron levels among oral submucous fibrosis patients [PDF]

, 2011
Objective: To estimate and compare the levels of serum copper and iron among subjects with oral submucous fibrosis (OSMF) of different clinical stages and healthy controls.
Kumar, Santhosh, Mamatha, G.P., Tadakamadla, Jyothi   +2 more
core   +1 more source