151 research outputs found
Effect of a high phophorus diet on indicators of renal health in cats
Objectives High phosphorus intake may further impair renal health in cats with chronic kidney disease (CKD). The hypothesis that a high phosphorus (HP) diet might be nephrotoxic for healthy animals was tested in cats, a species
with a high incidence of naturally occurring CKD.
Methods Thirteen healthy adult cats were fed a phosphorus excess diet (about five times maintenance requirements), and this HP group was compared with cats on a balanced control diet (CON). The trial lasted for 29 days (10 days of faeces and urine collection). Endogenous creatinine clearance was determined towards the end of the trial. Fresh urine was tested for glucose and proteins.
Results Glucosuria and microalbuminuria were observed exclusively in the HP group in 9/13 cats. Creatinine clearance was significantly decreased after feeding HP. In the HP group phosphorus was highly available (apparent digestibility around 60%). Renal phosphorus excretion was significantly increased in the HP group (115 mg/kg body weight/d vs 16 mg/kg body weight/d in the CON group).
Conclusions and relevance The intake of a diet with an excessive content of highly available phosphorus may have adverse effects on parameters of kidney function in healthy cats
Theory and implementation of inelastic Constitutive Artificial Neural Networks
Nature has always been our inspiration in the research, design and
development of materials and has driven us to gain a deep understanding of the
mechanisms that characterize anisotropy and inelastic behavior. All this
knowledge has been accumulated in the principles of thermodynamics. Deduced
from these principles, the multiplicative decomposition combined with pseudo
potentials are powerful and universal concepts. Simultaneously, the tremendous
increase in computational performance enabled us to investigate and rethink our
history-dependent material models to make the most of our predictions. Today,
we have reached a point where materials and their models are becoming
increasingly sophisticated. This raises the question: How do we find the best
model that includes all inelastic effects to explain our complex data?
Constitutive Artificial Neural Networks (CANN) may answer this question. Here,
we extend the CANNs to inelastic materials (iCANN). Rigorous considerations of
objectivity, rigid motion of the reference configuration, multiplicative
decomposition and its inherent non-uniqueness, restrictions of energy and
pseudo potential, and consistent evolution guide us towards the architecture of
the iCANN satisfying thermodynamics per design. We combine feed-forward
networks of the free energy and pseudo potential with a recurrent neural
network approach to take time dependencies into account. We demonstrate that
the iCANN is capable of autonomously discovering models for artificially
generated data, the response of polymers for cyclic loading and the relaxation
behavior of muscle data. As the design of the network is not limited to
visco-elasticity, our vision is that the iCANN will reveal to us new ways to
find the various inelastic phenomena hidden in the data and to understand their
interaction. Our source code, data, and examples are available at
doi.org/10.5281/zenodo.10066805Comment: 54 pages, 14 figures, 14 table
The Iowa Homemaker vol.41, no.5
Letter to the Editor, page 5
What Do YOU Know About the World Situation?, page 5
Foods from Faculty Files, Diane Sharbo, page 6
Creating the Air of Christmas, Ann Sindt, page 8
Study Buddies, Barb Strang, page 9
Mat, Motifs, Mailboxes, Made of Felt, Sharon Sherman, page 10
Are Co-ops for ISU?, Judy Godden, page 11
Home Economics Council Claims National Officer, Mary Ellen Muckenhirn, page 12
Hear Now the Bells, Sweet, Silver Bells, Marsha Barron, page 13
Gay Gifts Inside and Out, Jan Wheeler, page 14
Phi Upsilon Omicron, Joy Reese, page 16
Alii Nui Provides Last-Minute Gift Idea, Anne Collison, page 17
Poems, Jan Wheeler, page 1
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Community Service: Editor pride and user preference on local newspaper websites
Armed with readily accessible online traffic logs that provide detailed information about the items users are selecting to view, editors are voicing concern about the potential effect on their own content decisions. Through a survey of local British newspaper editors, this article examines the overlap between user preferences, as suggested by assessments of website traffic, and content that editors identify as their best. Results are considered in the context of two related subsets of agenda-setting theory, as well as the sociological process of “making news.” The study finds overlap between broad categories of stories preferred by editors and users, but a considerable disconnect over the nature of the items within those categories
Means to an End: An Assessment of the Status-blind Approach to Protecting Undocumented Worker Rights
This article applies the tenets of bureaucratic incorporation theory to an investigation of bureaucratic decision making in labor standards enforcement agencies (LSEAs), as they relate to undocumented workers. Drawing on 25 semistructured interviews with high-level officials in San Jose and Houston, I find that bureaucrats in both cities routinely evade the issue of immigration status during the claims-making process, and directly challenge employers’ attempts to use the undocumented status of their workers to deflect liability. Respondents offer three institutionalized narratives for this approach: (1) to deter employer demand for undocumented labor, (2) the conviction that the protection of undocumented workers is essential to the agency’s ability to regulate industry standards for all workers, and (3) to clearly demarcate the agency’s jurisdictional boundaries to preserve institutional autonomy and scarce resources. Within this context, enforcing the rights of undocumented workers becomes simply an institutional means to an end
Hypertensive Disorders of Pregnancy and DNA Methylation in Newborns Findings From the Pregnancy and Childhood Epigenetics Consortium
Hypertensive disorders of pregnancy (HDP) are associated with low birth weight, shorter gestational age, and increased risk of maternal and offspring cardiovascular diseases later in life. The mechanisms involved are poorly understood, but epigenetic regulation of gene expression may play a part. We performed meta-analyses in the Pregnancy and Childhood Epigenetics Consortium to test the association between either maternal HDP (10 cohorts; n=5242 [cases=476]) or preeclampsia (3 cohorts; n=2219 [cases=135]) and epigenome-wide DNA methylation in cord blood using the Illumina HumanMethylation450 BeadChip. In models adjusted for confounders, and with Bonferroni correction, HDP and preeclampsia were associated with DNA methylation at 43 and 26 CpG sites, respectively. HDP was associated with higher methylation at 27 (63%) of the 43 sites, and across all 43 sites, the mean absolute difference in methylation was between 0.6% and 2.6%. Epigenome-wide associations of HDP with offspring DNA methylation were modestly consistent with the equivalent epigenome-wide associations of preeclampsia with offspring DNA methylation (R-2=0.26). In longitudinal analyses conducted in 1 study (n=108 HDP cases; 550 controls), there were similar changes in DNA methylation in offspring of those with and without HDP up to adolescence. Pathway analysis suggested that genes located at/near HDP-associated sites may be involved in developmental, embryogenesis, or neurological pathways. HDP is associated with offspring DNA methylation with potential relevance to development.Peer reviewe
Meta-analysis of epigenome-wide association studies in newborns and children show widespread sex differences in blood DNA methylation
Publisher Copyright: © 2022 The AuthorsBackground: Among children, sex-specific differences in disease prevalence, age of onset, and susceptibility have been observed in health conditions including asthma, immune response, metabolic health, some pediatric and adult cancers, and psychiatric disorders. Epigenetic modifications such as DNA methylation may play a role in the sexual differences observed in diseases and other physiological traits. Methods: We performed a meta-analysis of the association of sex and cord blood DNA methylation at over 450,000 CpG sites in 8438 newborns from 17 cohorts participating in the Pregnancy And Childhood Epigenetics (PACE) Consortium. We also examined associations of child sex with DNA methylation in older children ages 5.5–10 years from 8 cohorts (n = 4268). Results: In newborn blood, sex was associated at Bonferroni level significance with differences in DNA methylation at 46,979 autosomal CpG sites (p < 1.3 × 10−7) after adjusting for white blood cell proportions and batch. Most of those sites had lower methylation levels in males than in females. Of the differentially methylated CpG sites identified in newborn blood, 68% (31,727) met look-up level significance (p < 1.1 × 10−6) in older children and had methylation differences in the same direction. Conclusions: This is a large-scale meta-analysis examining sex differences in DNA methylation in newborns and older children. Expanding upon previous studies, we replicated previous findings and identified additional autosomal sites with sex-specific differences in DNA methylation. Differentially methylated sites were enriched in genes involved in cancer, psychiatric disorders, and cardiovascular phenotypes.Peer reviewe
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