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Cyclin B1/CDK1-regulated mitochondrial bioenergetics in cell cycle progression and tumor resistance.
A mammalian cell houses two genomes located separately in the nucleus and mitochondria. During evolution, communications and adaptations between these two genomes occur extensively to achieve and sustain homeostasis for cellular functions and regeneration. Mitochondria provide the major cellular energy and contribute to gene regulation in the nucleus, whereas more than 98% of mitochondrial proteins are encoded by the nuclear genome. Such two-way signaling traffic presents an orchestrated dynamic between energy metabolism and consumption in cells. Recent reports have elucidated the way how mitochondrial bioenergetics synchronizes with the energy consumption for cell cycle progression mediated by cyclin B1/CDK1 as the communicator. This review is to recapitulate cyclin B1/CDK1 mediated mitochondrial activities in cell cycle progression and stress response as well as its potential link to reprogram energy metabolism in tumor adaptive resistance. Cyclin B1/CDK1-mediated mitochondrial bioenergetics is applied as an example to show how mitochondria could timely sense the cellular fuel demand and then coordinate ATP output. Such nucleus-mitochondria oscillation may play key roles in the flexible bioenergetics required for tumor cell survival and compromising the efficacy of anti-cancer therapy. Further deciphering the cyclin B1/CDK1-controlled mitochondrial metabolism may invent effect targets to treat resistant cancers
THE IMPACT OF THE EVOLUTION OF DIGITAL ECONOMY AND ORGANIZATIONAL FORM ON EMPLOYEES’ PSYCHOLOGY AND BEHAVIOR FROM THE PERSPECTIVE OF ECONOMY
THE IMPACT OF THE EVOLUTION OF DIGITAL ECONOMY AND ORGANIZATIONAL FORM ON EMPLOYEES’ PSYCHOLOGY AND BEHAVIOR FROM THE PERSPECTIVE OF ECONOMY
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Cerebral aneurysm treatment: modern neurovascular techniques.
Endovascular treatment of cerebral aneurysm continues to evolve with the development of new technologies. This review provides an overview of the recent major innovations in the neurointerventional space in recent years
Hierarchical Relationships: A New Perspective to Enhance Scene Graph Generation
This paper presents a finding that leveraging the hierarchical structures
among labels for relationships and objects can substantially improve the
performance of scene graph generation systems. The focus of this work is to
create an informative hierarchical structure that can divide object and
relationship categories into disjoint super-categories in a systematic way.
Specifically, we introduce a Bayesian prediction head to jointly predict the
super-category of relationships between a pair of object instances, as well as
the detailed relationship within that super-category simultaneously,
facilitating more informative predictions. The resulting model exhibits the
capability to produce a more extensive set of predicates beyond the dataset
annotations, and to tackle the prevalent issue of low annotation quality. While
our paper presents preliminary findings, experiments on the Visual Genome
dataset show its strong performance, particularly in predicate classifications
and zero-shot settings, that demonstrates the promise of our approach.Comment: NeurIPS 2023 New Frontiers in Graph Learning Workshop (NeurIPS
GLFrontiers 2023); NeurIPS 2023 Queer in AI Workshop. This paper is a
preliminary work of the full paper available at arXiv:2311.1288
Sequential Appointment Scheduling Considering Walk-In Patients
This paper develops a sequential appointment algorithm considering walk-in patients. In practice, the scheduler assigns an appointment time for each call-in patient before the call ends, and the appointment time cannot be changed once it is set. Each patient has a certain probability of being a no-show patient on the day of appointment. The objective is to determine the optimal booking number of patients and the optimal scheduling time for each patient to maximize the revenue of all the arriving patients minus the expenses of waiting time and overtime. Based on the assumption that the service time is exponentially distributed, this paper proves that the objective function is convex. A sufficient condition under which the profit function is unimodal is provided. The numerical results indicate that the proposed algorithm outperforms all the commonly used heuristics, lowering the instances of no-shows, and walk-in patients can improve the service efficiency and bring more profits to the clinic. It is also noted that the potential appointment is an effective alternative to mitigate no-show phenomenon
Enhancing Scene Graph Generation with Hierarchical Relationships and Commonsense Knowledge
This work presents an enhanced approach to generating scene graphs by
incorporating a relationship hierarchy and commonsense knowledge. Specifically,
we propose a Bayesian classification head that exploits an informative
hierarchical structure. It jointly predicts the super-category or type of
relationship between the two objects, along with the detailed relationship
under each super-category. We design a commonsense validation pipeline that
uses a large language model to critique the results from the scene graph
prediction system and then use that feedback to enhance the model performance.
The system requires no external large language model assistance at test time,
making it more convenient for practical applications. Experiments on the Visual
Genome and the OpenImage V6 datasets demonstrate that harnessing hierarchical
relationships enhances the model performance by a large margin. The proposed
Bayesian head can also be incorporated as a portable module in existing scene
graph generation algorithms to improve their results. In addition, the
commonsense validation enables the model to generate an extensive set of
reasonable predictions beyond dataset annotations
On shotnoise and Brownian motion limits to the accuracy of particle positioning with optical tweezers
This paper examines the fundamental resolution limit of particle positioning with optical tweezers due to the combined effects of Brownian motion and optical shotnoise. It is found that Brownian motion dominates at low signal frequencies, whilst shotnoise dominates at high frequencies, with the exact crossover frequency varying by many orders of magnitude depending on experimental parameters such as particle size and trapping beam power. These results are significant both for analysis of the bandwidth limits of particle monitoring with optical tweezers and for enhancements of optical tweezer systems based on non-classical states of light
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