Results 21 to 30 of about 136,220 (251)

An Investigation into the Suitability of Sulfate-Reducing Bacteria as Models for Martian Forward Contamination [PDF]

open access: yes, 2018
The NASA Planetary Protection policy requires interplanetary space missions do not compromise the target body for a current or future scientific investigation and do not pose an unacceptable risk to Earth, including biologic materials.
Silver, Maxwell M. W.
core   +2 more sources

Toward Environmentally Friendly Hydrogel‐Based Flexible Intelligent Sensor Systems

open access: yesAdvanced Intelligent Discovery, EarlyView.
This review summarizes environmentally and biologically friendly hydrogel‐based flexible sensor systems focusing on physical, chemical, and physiological sensors. Furthermore, device concepts moving forward for the practical application are discussed about wireless integration, the interface between hydrogel and dry electronics, automatic data analysis
Sudipta Kumar Sarkar, Kuniharu Takei
wiley   +1 more source

The analytical determination of thorium with O-benzoyl bensoic acid. [PDF]

open access: yes, 1940
Thesis (M.A.)--Boston University N.B.:Pages missing : 6.
Bertorelli, Ollie Leonard
core   +1 more source

Questions and conjectures about multinomial coefficients

open access: yes, 2001
The purpose of this thesis is to try to answer some of the questions in Dr. Bachman\u27s paper On Divisibility Properties of Certain Multinomial Coefficients . First we let {ai} be any sequence (finite or infinite) of positive integers such that i1ai ≤
Kessler, Troy Richard
core   +1 more source

A Machine Learning Model for Interpretable PECVD Deposition Rate Prediction

open access: yesAdvanced Intelligent Discovery, EarlyView.
This study develops six machine learning models (k‐nearest neighbors, support vector regression, decision tree, random forest, CatBoost, and backpropagation neural network) to predict SiNx deposition rates in plasma‐enhanced chemical vapor deposition using hybrid production and simulation data.
Yuxuan Zhai   +8 more
wiley   +1 more source

Reciprocal Associations Between Parental Anxiety/Depression and Emotional/Behavioral Difficulties in Autistic Children Following Their Diagnosis

open access: yesAutism Research, EarlyView.
ABSTRACT Emotional and behavioral difficulties (EBD) are common in autistic children, while anxiety and depressive symptoms (ADS) are prevalent in their parents. However, the bidirectional relationship between the parents' and children's symptoms remains unclear, especially in the years following the child's autism diagnosis.
Maëva Monnier   +8 more
wiley   +1 more source

Determination of Silver Binding to Natural Organic Matter Using Ion Selective Electrode [PDF]

open access: yes, 2017
Natural organic matter (NOM) is considered an important factor in the protection of the aquatic environments; organic ligands can complex with metals, to decrease their toxicity and bioavailability. NOM is measured as dissolved organic carbon (DOC) in mg
Alshammari, Mona Muhawwis
core   +1 more source

Hidden O‐Deglycosylation Activity Triggers O → C Rearrangement for Aryl Di‐C‐Glucoside Formation by the C‐Glycosyltransferase From Fortunella crassifolia

open access: yesBiotechnology and Bioengineering, EarlyView.
Here, we uncovered an unexpected O‐deglycosylation activity of the C glycosyltransferase (FcCGT), forming phloretin (1) from phloretin 2'‐O‐glucoside (2). In the presence of UDP, FcCGT catalyzes the O→C rearrangement to yield nothofagin (3). Upon additional UDP‐glucose, further C‐glycosylation occurs, forming phloretin 3',5'‐di‐C‐glucoside (4 ...
Tuo Li   +4 more
wiley   +1 more source

ILR School Ph.D. Dissertations [PDF]

open access: yes, 2006
Compiled by Susan LaCette.ILRSchoolPhD.pdf: 4022 downloads, before Oct.
LaCette, Susan
core   +1 more source

Sentience in cephalopod molluscs: an updated assessment

open access: yesBiological Reviews, EarlyView.
ABSTRACT This article evaluates the evidence for sentience – the capacity to have feelings – in cephalopod molluscs: octopus, cuttlefish, squid, and nautilus. Our framework includes eight criteria, covering both whether the animal's nervous system could support sentience and whether their behaviour indicates sentience.
Alexandra K. Schnell   +4 more
wiley   +1 more source

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