bluuebunny/crossref_metadata_2025_split huggingface dataset:
On weakly 2-absorbing δ-primary ideals of commutative rings
Authors: Badawi Ayman , Fahid Brahim 
Published: November 2018

Abstract
Let R be a commutative ring with

1
≠
0

{1\neq 0}

. We recall that a proper ideal I of R is called a weakly 2-absorbing
primary ideal of R if whenever

a
,
b
,
c

∈
R

{a,b,c\in R}

and

0
≠

a
⁢
b
⁢
c

∈
I

{0\not=abc\in I}

, then

a
⁢
b

∈
I

{ab\in I}

or

a
⁢
c

∈

I

{ac\in\sqrt{I}}

or

b
⁢
c

∈

I

{bc\in\sqrt{I}}

. In this paper, we introduce a new class of ideals that is closely related to the class of weakly 2-absorbing primary ideals. Let

I
⁢

(
R
)

{I(R)}

be the set of all ideals of R and let

δ
:

I
⁢

(
R
)

→

I
⁢

(
R
)

{\delta:I(R)\rightarrow I(R)}

be a function. Then δ is called an expansion function of ideals of R if whenever

L
,
I
,
J

{L,I,J}

are ideals of R with

J
⊆
I

{J\subseteq I}

, then

L
⊆

δ
⁢

(
L
)

{L\subseteq\delta(L)}

and

δ
⁢

(
J
)

⊆

δ
⁢

(
I
)

{\delta(J)\subseteq\delta(I)}

. Let δ be an expansion function of ideals of R. Then a proper ideal I of R (i.e.,

I
≠
R

{I\not=R}

) is called a weakly 2-absorbing δ-primary ideal if

0
≠

a
⁢
b
⁢
c

∈
I

{0\not=abc\in I}

implies

a
⁢
b

∈
I

{ab\in I}

or

a
⁢
c

∈

δ
⁢

(
I
)

{ac\in\delta(I)}

or

b
⁢
c

∈

δ
⁢

(
I
)

{bc\in\delta(I)}

. For example, let

δ
:

I
⁢

(
R
)

→

I
⁢

(
R
)

{\delta:I(R)\rightarrow I(R)}

such that

δ
⁢

(
I
)

=

I

{\delta(I)=\sqrt{I}}

. Then δ is an expansion function of ideals of R, and hence a proper ideal I of R is a weakly 2-absorbing primary ideal of R if and only if I is a weakly 2-absorbing δ-primary ideal of R. A number of results concerning weakly 2-absorbing δ-primary ideals and examples of
weakly 2-absorbing δ-primary ideals are given.
Off-diagonal extrapolation on mixed variable Lebesgue spaces and its applications to strong fractional maximal operators
Authors: Tan Jian 
Published: November 2018

Abstract
We establish off-diagonal extrapolation on mixed variable Lebesgue spaces. As its applications, we obtain the
boundedness for strong fractional maximal operators.
The vector-valued analogies are also considered.
Additionally, the Littlewood–Paley characterization for mixed variable Lebesgue spaces is also established with the help
of weighted norm inequalities and extrapolation.
Meeting mirth: The critical role of impression management and humor style in meetings
Authors: Crowe John , Yoerger Michael , Harms Mackenzie , Lehmann-Willenbrock Nale , Allen Joseph A. 
Published: November 2018

Abstract
Drawing from theory on humor styles, impression management, and workplace meetings, we conducted two survey studies of working adults to examine the role of positive and negative humor on meeting satisfaction. We began by investigating the positive effects of humor on meeting satisfaction as moderated by impression management. In an online survey of working adults, we found that humor use in meetings was positively related to meeting satisfaction. Impression management moderates this relationship, such that the positive relationship between the use of humor in meetings and meeting satisfaction is significantly stronger for individuals who report relatively low impression management. In a second study, we investigated perceptions of impression management use in meeting humor. Using an experimental 2×2 factorial design, we investigated how use of impression management strategies differentially impacts meeting attendees’ perceptions of humor styles. We found that affiliative humor resulted in greater meeting satisfaction than aggressive humor. Furthermore, use of impression management enhanced meeting satisfaction following aggressive humor and diminished meeting satisfaction following affiliative humor.
Prevalence and associated factors for social phobia among school-going adolescents in a rural area of Puducherry, South India
Authors: Yuvaraj Krishnamoorthy , Kumar Giriyappa Dinesh , Priyan Shanthosh , Yamini Marimuthu , Kumar Saya Ganesh , Subitha Lakshminarayanan 
Published: November 2018

Abstract

Background
The World Health Organisation has reported that mental disorders are one of the leading causes of disability worldwide. Social phobia is one such mental disorder that can have significant impact on the livelihood of adults if not detected at an early stage. There have been very few studies done on social phobia among adolescents in South India. Hence, this study was done to determine the prevalence of social phobia and factors associated with it among the school-going adolescents in rural Puducherry.

Methodology
A community-based cross-sectional study was conducted among 1018 school going adolescents from December 2017 to January 2018 in rural Puducherry. Information on socio-demographic characteristics was collected by a pre-tested semi-structured questionnaire and social phobia was assessed using the validated Social Phobia Inventory (SPIN) questionnaire.

Results
Among 1018 participants, 738 (72.5%) belonged to early adolescence (10–13 years); 520 (51.1%) were boys; 557 (54.7%) were studying in a middle class; 931 (91.5%) were Hindus; 978 (96.1%) had siblings.
The prevalence of social phobia among adolescents was found to be 22.9% (95% CI: 20.4–25.5%). The prevalence of mild social phobia was 18% [95% confidence interval (CI): 15.7–20.4%], moderate social phobia was 4% (95% CI: 2.9–5.4%), severe social phobia was 0.7% (95% CI: 0.3–1.3%) and very severe social phobia was 0.2% (95% CI: 0.03–0.64%). Higher age, female gender, lack of counselling services and specialist visits at school were found to be determinants of social phobia.

Conclusion
The current study showed that one in every five adolescents was at risk of developing social phobia. Health education for students, teachers and family members needs to be given to make them aware of the importance of social phobia.
Quantitative approximation by shift invariant multivariate sublinear-Choquet operators
Authors: Anastassiou George A. 
Published: November 2018

Abstract
A very general multivariate positive sublinear Choquet integral type operator is given through a convolution-like iteration of another multivariate general positive sublinear operator with a multivariate scaling type function.
For it, sufficient conditions are given for shift invariance, preservation of global smoothness, convergence to the unit with rates.
Furthermore, two examples of very general multivariate specialized operators are presented fulfilling all the above properties; the higher order of multivariate approximation of these operators is also studied.
Periodic solutions for periodic second-order differential equations with variable potentials
Authors: Llibre Jaume , Makhlouf Ammar 
Published: November 2018

Abstract
We provide sufficient conditions for the existence of periodic solutions of the second-order differential equation with variable potentials

-

(

p
⁢

x
′

)

′

⁢

(
t
)

-

r
⁢

(
t
)

⁢
p
⁢

(
t
)

⁢

x
′

⁢

(
t
)

+

q
⁢

(
t
)

⁢
x
⁢

(
t
)

=

f
⁢

(
t
,

x
⁢

(
t
)

)

{-(px^{\prime})^{\prime}(t)-r(t)p(t)x^{\prime}(t)+q(t)x(t)=f(t,x(t))}

, where the functions

p
⁢

(
t
)

>
0

{p(t)>0}

,

q
⁢

(
t
)

{q(t)}

,

r
⁢

(
t
)

{r(t)}

and

f
⁢

(
t
,
x
)

{f(t,x)}

are

𝒞
2

{\mathcal{C}^{2}}

and T-periodic in the variable t.
Definable sets containing productsets in expansions of groups
Authors: Andrews Uri , Conant Gabriel , Goldbring Isaac 
Published: November 2018

Abstract
We consider the question of when sets definable in first-order expansions of groups contain the product of two infinite sets (we refer to this as the “productset property”). We first show that the productset property holds for any definable subset A of an expansion of a discrete amenable group such that A has positive Banach density and the formula

x
⋅
y

∈
A

{x\cdot y\in A}

is stable. For arbitrary expansions of groups, we consider a “1-sided” version of the productset property, which is characterized in various ways using coheir independence. For stable groups, the productset property is equivalent to this 1-sided version, and behaves as a notion of largeness for definable sets, which can be characterized by a natural weakening of model-theoretic genericity. Finally, we use recent work on regularity lemmas in distal theories to prove a definable version of the productset property for sets of positive Banach density definable in certain distal expansions of amenable groups.
Comparison of the FitroDyne and GymAware Rotary Encoders for Quantifying Peak and Mean Velocity During Traditional Multijointed Exercises
Authors: Fernandes John F.T. , Lamb Kevin L. , Clark Cain C.T. , Moran Jason , Drury Ben , Garcia-Ramos Amador , Twist Craig 
Published: November 2018

Abstract
Fernandes, JFT, Lamb, KL, Clark, CCT, Moran, J, Drury, B, Garcia-Ramos, A, and Twist, C. Comparison of the FitroDyne and GymAware rotary encoders for quantifying peak and mean velocity during traditional multijointed exercises. J Strength Cond Res 35(6): 1760–1765, 2021—The FitroDyne and GymAware rotary encoders are being increasingly used in resistance training to monitor movement velocity, but how closely their velocity outcomes agree is unknown. Consequently, this study aimed to determine the level of agreement between the FitroDyne and GymAware for the assessment of movement velocity in 3 resistance training exercises. Fifteen men performed 3 repetitions of bench press, back squat, and bent-over-row exercises at 10% 1 repetition maximum increments (from 20 to 80%). For each repetition, the FitroDyne and GymAware recorded peak and mean barbell velocity (cm·s−1). Although strongly correlated (r = 0.79–1.00), peak velocity values for the GymAware were significantly lower than the FitroDyne for all exercises and loads. Importantly, the random errors between the devices, quantified through Bland and Altman's 95% limits of agreement, were unacceptable, ranging from ±3.8 to 25.9 cm·s−1. Differences in mean velocity were smaller (and nonsignificant for most comparisons) and highly correlated (r = 0.86–1.00) between devices. Notwithstanding smaller random errors than for the peak values, mean values still reflected poor agreement (random errors between ±2.1 and 12.0 cm·s−1). These findings suggest that the FitroDyne and GymAware cannot record peak or mean velocity with acceptable agreement and should neither be used interchangeably nor their data compared.
The Role of Angle in the Evaluation of Ablation Accuracy in Pulmonary Vein Isolation Navigated by Image Integration
Authors: Chen Song-Wen , Cai Li-Dong , Asakawa Tetsuya , Zhou Gen-Qing , Wei Yong , Qi Bao-Zhen , Ling Zhi-Yu , Wu Hai-Qing , Xu Juan , Liu Shao-Wen 
Published: November 2018

Background: The conventional index for ablation accuracy is to compare the distance between mapping points with and without treatment by using image integration. We attempted to quantitatively evaluate the role of angle as an index in the ablation accuracy in patients with atrial fibrillation (AF).
Methods: A total of 48 patients with AF were included in the present study. Virtual fluoroscopy planes were predicted by pulmonary vein (PV) angiography, and the standard image planes were defined on the basis of the computed tomography images. Ablations were performed, guided by image integration; and the ablation planes were defined by the actual ablation rings. The predicted angle (distance) was defined as the angle (distance) between the fluoroscopy (predicted) plane and image (standard) plane, whereas the actual angle (distance) was defined as the angle (distance) between the ablation (actual) planes and the image (standard) planes.
Results: We found that all actual angles were significantly smaller than the predicted angles (P <.05), but only the actual distances in the left PV, right inferior PV, right superior PV, and right PV were significantly smaller; the distances in the left inferior PV and left superior PV were not significantly different (P >.05).
Conclusion: Our finding indicates that both the angle and the distance can be significantly reduced by navigation with image integration, but that the angle exhibited better sensitivity than the conventional index of distance. We suggest that the angle should be considered as a new index for ablation accuracy.
Transcription Promotes the Interaction of the FAcilitates Chromatin Transactions (FACT) Complex with Nucleosomes inSaccharomyces cerevisiae
Authors: Martin Benjamin J E , Chruscicki Adam T , Howe LeAnn J 
Published: November 2018

AbstractFACT (FAcilitates Chromatin Transactions) is an abundant and conserved complex that is essential for cell viability. FACT binds to highly expressed genes and facilitates transcription while maintaining chromatin structure, but how it is targeted...The FACT (FAcilitates Chromatin Transactions) complex is a conserved complex that maintains chromatin structure on transcriptionally active genes. Consistent with this, FACT is enriched on highly expressed genes, but how it is targeted to these regions is unknown. In vitro, FACT binds destabilized nucleosomes, supporting the hypothesis that FACT is targeted to transcribed chromatin through recognition of RNA polymerase (RNAP)-disrupted nucleosomes. In this study, we used high-resolution analysis of FACT occupancy in Saccharomyces cerevisiae to test this hypothesis. We demonstrate that FACT interacts with nucleosomes in vivo and that its interaction with chromatin is dependent on transcription by any of the three RNAPs. Deep sequencing of micrococcal nuclease-resistant fragments shows that FACT-bound nucleosomes exhibit differing nuclease sensitivity compared to bulk chromatin, consistent with a modified nucleosome structure being the preferred ligand for this complex. Interestingly, a subset of FACT-bound nucleosomes may be “overlapping dinucleosomes,” in which one histone octamer invades the ∼147-bp territory normally occupied by the adjacent nucleosome. While the differing nuclease sensitivity of FACT-bound nucleosomes could also be explained by the demonstrated ability of FACT to alter nucleosome structure, transcription inhibition restores nuclease resistance, suggesting that it is not due to FACT interaction alone. Collectively, these results are consistent with a model in which FACT is targeted to transcribed genes through preferential interaction with RNAP-disrupted nucleosomes.
Distinct Roles of Two Histone Methyltransferases in Transmitting H3K36me3-Based Epigenetic Memory Across Generations in Caenorhabditis elegans
Authors: Kreher Jeremy , Takasaki Teruaki , Cockrum Chad , Sidoli Simone , Garcia Benjamin A , Jensen Ole N , Strome Susan 
Published: November 2018

Abstract
Epigenetic information contributes to proper gene expression and development, and can be transmitted not only through mitotic divisions but also from parents to progeny. We investigated the roles in epigenetic inheritance of MES-4 and MET-1, the two Caenorhabditis elegans enzymes that methylate H3K36 (histone H3 Lys 36). Mass spectrometry analysis confirmed immunostaining results showing that both MES-4 and MET-1 catalyze H3K36me3. In the adult germline, MES-4 is enriched in the distal mitotic zone and MET-1 is enriched in the meiotic pachytene zone. Embryos inherit H3K36me3-marked chromosomes from both the oocyte and sperm, and a maternal load of MES-4 and MET-1. Maternal MES-4 quickly associates with sperm chromosomes; that association requires that the sperm chromosomes bear H3K36me3, suggesting that MES-4 is recruited to chromosomes by preexisting H3K36me3. In embryos that inherit H3K36me3-positive oocyte chromosomes and H3K36me3-negative sperm chromosomes, MES-4 and H3K36me3 are maintained on only a subset of chromosomes until at least the 32-cell stage, likely because MES-4 propagates H3K36me3 on regions of the genome with preexisting H3K36me3. In embryos lacking MES-4, H3K36me3 levels on chromosomes drop precipitously postfertilization. In contrast to the relatively high levels of MES-4 in early-stage embryos, MET-1 levels are low at early stages and start increasing by the ∼26-cell stage, consistent with expression from the zygotic genome. Our findings support the model that MET-1 mediates transcription-coupled H3K36me3 in the parental germline and transcriptionally active embryos, and that MES-4 transmits an epigenetic memory of H3K36me3 across generations and through early embryo cell divisions by maintaining inherited patterns of H3K36me3.
Meiotic Double-Strand Break Proteins Influence Repair Pathway Utilization
Authors: Macaisne Nicolas , Kessler Zebulin , Yanowitz Judith L 
Published: November 2018

AbstractDouble-strand breaks (DSBs) are purposefully made during meiosis and must be repaired by homologous recombination (HR) to achieve a crossover. In mitotic cells, alternative repair pathways compete with HR for repair; however, little...Double-strand breaks (DSBs) are among the most deleterious lesions DNA can endure. Yet, DSBs are programmed at the onset of meiosis, and are required to facilitate appropriate reduction of ploidy in daughter cells. Repair of these breaks is tightly controlled to favor homologous recombination (HR)—the only repair pathway that can form crossovers. However, little is known about how the activities of alternative repair pathways are regulated at these stages. We discovered an unexpected synthetic interaction between the DSB machinery and strand-exchange proteins. Depleting the Caenorhabditis elegans DSB-promoting factors HIM-5 and DSB-2 suppresses the formation of chromosome fusions that arise in the absence of RAD-51 or other strand-exchange mediators. Our investigations reveal that nonhomologous and theta-mediated end joining (c-NHEJ and TMEJ, respectively) and single strand annealing (SSA) function redundantly to repair DSBs when HR is compromised, and that HIM-5 influences the utilization of TMEJ and SSA.
Sentryn Acts with a Subset of Active Zone Proteins To Optimize the Localization of Synaptic Vesicles in Caenorhabditis elegans
Authors: Edwards Stacey L , Morrison Logan M , Manning Laura , Stec Natalia , Richmond Janet E , Miller Kenneth G 
Published: November 2018

Abstract
Synaptic vesicles (SVs) transmit signals by releasing neurotransmitters from specialized synaptic regions of neurons. In the synaptic region, SVs are tightly clustered around small structures called active zones. The motor KIF1A transports SVs outward through axons until they are captured in the synaptic region. This transport must be guided in the forward direction because it is opposed by the dynein motor, which causes SVs to reverse direction multiple times en route. The core synapse stability (CSS) system contributes to both guided transport and capture of SVs. We identified Sentryn as a CSS protein that contributes to the synaptic localization of SVs in Caenorhabditis elegans. Like the CSS proteins SAD Kinase and SYD-2 (Liprin-α), Sentryn also prevents dynein-dependent accumulation of lysosomes in dendrites in strains lacking JIP3. Genetic analysis showed that Sentryn and SAD Kinase each have at least one nonoverlapping function for the stable accumulation of SVs at synapses that, when combined with their shared functions, enables most of the functions of SYD-2 (Liprin-α) for capturing SVs. Also like other CSS proteins, Sentryn appears enriched at active zones and contributes to active zone structure, suggesting that it is a novel, conserved active zone protein. Sentryn is recruited to active zones by a process dependent on the active zone-enriched CSS protein SYD-2 (Liprin-α). Our results define a specialized group of active zone enriched proteins that can affect motorized transport throughout the neuron and that have roles in both guided transport and capture of SVs.
Protection from Disulfide Stress by Inhibition of Pap1 Nuclear Export in Schizosaccharomyces pombe
Authors: Chen Yan , Zhang Yan , Dong Zhicheng , Ow David W 
Published: November 2018

Abstract
Appropriate subcellular localization of regulatory factors is critical for cellular function. Pap1, a nucleocytoplasmic shuttling transcription factor of Schizosaccharomyces pombe, is redox regulated for localization and antistress function. In this study, we find that overproduction of a peptide conjugate containing the nuclear export signal of Oxs1, a conserved eukaryotic protein that, along with Pap1, regulates certain diamide responsive genes, can retain Pap1 in the nucleus before stress by competing for nuclear export. The nuclear retention of Pap1 upregulates several drug resistance genes to prime the cells for higher tolerance to disulfide stress. Overproduction of Oxs1 also upregulates these same genes, not by competing for export but by binding directly to the drug resistance gene promoters for Pap1-mediated activation. Of medical relevance is that this may suggest a gene therapy approach of using nuclear export signal conjugates to suppress the nuclear export of biomolecules.
Job Dekker: 2018 Edward Novitski Prize
Authors: Haloupek Nicole 
Published: November 2018

Abstract
The Genetics Society of America’s (GSA) Edward Novitski Prize is awarded to researchers who have solved challenging problems in genetics through experiments that demonstrate exceptional creativity and ingenuity. Job Dekker of the University of Massachusetts Medical School has been selected for the 2018 award in recognition of his innovative approach to understanding chromosome interactions and nuclear organization. Among Dekker’s contributions are the development of the now-ubiquitous approach of chromosome conformation capture and the discovery of topologically associating domains.
Interfaces and defect composition at the near-atomic scale through atom probe tomography investigations
Authors: Gault Baptiste , Breen Andrew J. , Chang Yanhong , He Junyang , Jägle Eric A. , Kontis Paraskevas , Kürnsteiner Philipp , Kwiatkowski da Silva Alisson , Makineni Surendra Kumar , Mouton Isabelle , Peng Zirong , Ponge Dirk , Schwarz Torsten , Stephenson Leigh T. , Szczepaniak Agnieszka , Zhao Huan , Raabe Dierk 
Published: November 2018

Abstract