16 papers · ranked by Valyu relevance
David F. Anderson, Tung D. Nguyen
Deficiency zero is an important network structure and has been the focus of many celebrated results within reaction network theory. In our previous paper Prevalence of deficiency zero reaction networks in an Erd˝os-R´enyi framework, we provided a framework to quantify the prevalence of deficiency zero among randomly…
David F. Anderson, Tung D. Nguyen
Reaction networks are commonly used within the mathematical biology and mathematical chemistry communities to model the dynamics of interacting species. These models differ from the typical graphs found in random graph theory since their vertices are constructed from elementary building blocks, i.e., the species. In…
Gheorghe Crăciun, Jiaxin Jin, Polly Y. Yu
A reaction network together with a choice of rate constants uniquely gives rise to a system of differential equations, according to the law of mass-action kinetics. On the other hand, different networks can generate the same dynamical system under mass-action kinetics. Therefore, the problem of identifying "the"…
Awildo Gutierrez, Elijah Leake, Caelyn Rivas-Sobie, Jordy Lopez Garcia + 1 more
'Jordy Lopez Garcia' 'Anne Shiu'] We investigate six operations on chemical reaction networks, all of which have been proven to preserve important dynamical properties, namely, the capacity for nondegenerate multistationarity (multiple steady states) and periodic orbits. Both multistationarity and periodic orbits are…
Mariano Zeron-Medina Laris
We introduce a new real valued invariant for finitely presented groups called residual deficiency. Its main property is the following. Let G be a finitely presented group. If the residual deficiency of G is greater than one, then G has a finite index subgroup with deficiency greater than one. The latter property is…
Rachel M. Burke, Juan S. Leon, Parminder S. Suchdev
Iron deficiency is a global problem across the life course, but infants and their mothers are especially vulnerable to both the development and the consequences of iron deficiency. Maternal iron deficiency during pregnancy can predispose offspring to the development of iron deficiency during infancy, with potentially…
Daniel L. Oberski
Latent variable models are well-known to suffer from rank deficiencies, causing problems with convergence and stability. Such problems are compounded in the "reduced-group split-ballot multitrait-multimethod model", which omits a set of moments from the estimation through a planned missing data design. This paper…
Omar Karlsson, Rockli Kim, S. V. Subramanian
This cross-sectional study examines the prevalence of zero-food children (children who do not consume any food other than breast milk) aged 6 to 23 months across 92 low- and middle-income countries.
Hiroshi Yasuda, Toyoharu Tsutsui
The importance of zinc for human health has been recognized since the early 1960s, but today there is little concern about zinc deficiency in developed countries. In this study, we measured the zinc concentration in hair from 28,424 Japanese subjects (18,812 females and 9,612 males) and found that 1,754 subjects…
Björn N. S. Vlaskamp, Phillip Guan, Martin S. Banks
When periodic stimuli such as vertical sinewave gratings are presented to the two eyes, the initial stage of disparity estimation yields multiple solutions at multiple depths. The solutions are all frontoparallel when the sinewaves have the same spatial frequency; they are all slanted when the sinewaves have quite…
Hai-Xiong Xia, Yan-Hua Zhou, Yuan-Yuan Tuo, Ping-Ping Ren + 5 more
Glucose-6-phosphate dehydrogenase (G6PD) deficiency, the most common genetic defect and enzymopathy with a wide distribution and increased public health concern, predisposes subjects succumb to oxidative stress. G6PD deficiency has been associated with hemolysis. Clinically, G6PD deficiency is asymptomatic and the…
Authors not listed
Zinc (Zn) deficiency affects around 50% of rice paddy soils worldwide. This leads to reduced production and poor nutritional composition of food with detrimental consequences to human health. In this work we show that proline-2′-deoxymugineic acid (PDMA), a new synthetic organic ligand, forms strong and stable…
Ananda S. Prasad
Zinc is an essential element for humans, and its deficiency was documented in 1963. Nutritional zinc deficiency is now known to affect over two billion subjects in the developing world. Conditioned deficiency of zinc in many diseases has also been observed. In zinc-deficient dwarfs from the Middle East, we reported…
Sara Kelly, Hendrik Heenen, Nitish Govindarajan, Karen Chan + 1 more
The potential of zero charge (U_PZC) is an important quantity of metal-water interfaces that are central in many electrochemical applications. In this work, we use ab initio molecular dynamics (AIMD) simulations to study a large number of (111), (100), (0001) and (211) and overlayers of transition metal-water…
Milankumar Prajapati, Jared Z. Zhang, Grace S. Chong, Lauren Chiu + 10 more
SLC30A10 deficiency is a disease of severe manganese excess attributed to loss of SLC30A10-dependent manganese excretion via the gastrointestinal tract. Patients develop dystonia, cirrhosis, and polycythemia. They are treated with chelators but also respond to oral iron, suggesting that iron can outcompete manganese…
Kristofer C Terrell, Suyun Choi, Jiahn Choi, Sangyong Choi
Zinc is essential for life, and its regulation is tightly controlled by numerous transporters. As we age, our micronutrient levels, intake, and absorption change. Additionally, senescent cells increase with age and can contribute to the progression of age-related diseases. The study of Zn homeostasis in senescent…