54 research outputs found
Comparing the vulnerability of different coal industrial symbiosis networks under economic fluctuations
We establish a vulnerability analytical framework of CISN, and illustrate the impact path of economic fluctuation on CISN performance. Based on this, we propose an improved cascading failure model with directed weighted network, and design five network performance indicators (i.e., relative value of cascading failure, average path length, relative value of maximal connected sub-graphs, network efficiency, and structure entropy). Taking three coal eco-industrial parks in China as cases, we simulate and compare the impacts on CISN vulnerability (i.e., equality-based, dependent-based, and nested-based CISNs) of economic fluctuation. The results indicate that the interaction between economic fluctuation and network structure is the key factor in determining system vulnerability. Concerning overall vulnerability, equality-based CISN is highest, dependent-based CISN is next, and nested-based CISN is lowest. Regarding disturbance type, the changes in the five performance indicators of the three types of CISN are more intense under energy price shocks than with declining demand. Moreover, the cascading failure scale of equality-based CISN is greatest with declining demand, while the other two kinds of CISN’s is greatest under energy price shocks. Concerning disturbance intensity, equality-based CISN shows initial value sensitivity to economic fluctuation, and nested-based CISN has the strongest tolerances for economic fluctuation. From the network performance perspective, the performance of nested-based CISN is superior to that of dependent-based and equality-based CISNs. Due to longer average path length and lower network efficiency, the failure diffusion trend of equality-based CISN shows the curve of Type-S, and the diffusion rate is smooth and slow. Contrariwise, the initial diffusion rate of dependent-based CISN is the highest, indicating that the loss of system efficiency can somewhat improve the system’s anti-risk ability
Perturbed autophagy and DNA repair converge to promote neurodegeneration in amyotrophic lateral sclerosis and dementia
Maintaining genomic stability constitutes a major challenge facing cells. DNA breaks can arise from direct oxidative damage to the
DNA backbone, the inappropriate activities of endogenous enzymes such as DNA topoisomerases, or due to transcriptionallyderived
RNA/DNA hybrids (R-loops). The progressive accumulation of DNA breaks has been linked to several neurological
disorders. Recently, however, several independent studies have implicated nuclear and mitochondrial genomic instability, perturbed
co-transcriptional processing, and impaired cellular clearance pathways as causal and intertwined mechanisms underpinning
neurodegeneration. Here, we discuss this emerging paradigm in the context of amyotrophic lateral sclerosis and frontotemporal
dementia, and outline how this knowledge paves the way to novel therapeutic interventions
Tumor cell survival pathways activated by photodynamic therapy: a molecular basis for pharmacological inhibition strategies
EXTRACTION SYSTEM OF A COMPACT CYCLOTRON
Based on the beam orbit and dynamics simulations, the<br />extraction system of a compact cyclotron is determined,<br />and the beam parameters of the extracted beam are<br />calculated
Preparation and Magnetic Properties of Nd/FM (FM=Fe, Co, Ni)/PA66 Three-Layer Coaxial Nanocables
Abstract A new preparation method of three-layer coaxial nanocables has been developed in this work. Nd/FM (FM=Fe, Co, Ni)/PA66 three-layer coaxial nanocables were assembled successfully from outer to inner layer by layer. PA66 nanotubes which served as the outer shell were prepared by polymer solution wetting AAO template. Ferromagnetic metals and Nd were deposited into pre-prepared PA66 nanotubes to be served as the middle layer and inner core, respectively. The results show that the structure has effects on the magnetic properties, and the nanocable preparation allows each layer, length, and thickness of the nanocables to be tuned
High-Efficiency Control of Gray Mold by the Novel SDHI Fungicide Benzovindiflupyr Combined with a Reasonable Application Approach of Dipping Flower
In this study, a novel succinate
dehydrogenase inhibitor (SDHI)
fungicide benzovindiflupyr was found to have strong inhibitory activity
against gray mold caused by <i>Botrytis cinerea</i>. The
sensitivity of <i>B. cinerea</i> to benzovindiflupyr was
determined by testing 103 pathogen isolates with mean values of 2.15
± 0.19 mg L<sup>–1</sup> and 0.89 ± 0.14 mg L<sup>–1</sup> for mycelial growth and spore germination inhibition,
respectively. Furthermore, benzovindiflupyr had excellent long-lasting
protective activity. Unfortunately, there were positive correlations
between benzovindiflupyr and boscalid (<i>r</i> = 0.3, <i>P</i> = 0.04) and between benzovindiflupyr and isopyrazam (<i>r</i> = 0.31, <i>P</i> = 0.04). In the field, cucumber
flowers are susceptible to infection by <i>B. cinerea</i>. Benzovindiflupyr applied at 20 mg L<sup>–1</sup> by dipping
flowers could successfully control cucumber gray mold, with the benzovindiflupyr
dose of dipping flower application less than 1% of that of spraying
application. Benzovindiflupyr combined with dipping flower application
showed significant control of gray mold
Early Engraftment of Unrelated Cord Blood Transplantation in Patients with Acquired Severe Aplastic Anemia Using Conditioning Regimen without Anti-Thymocyte Globulin
A predictive model combining clinical characteristics and nutritional risk factors for overall survival after umbilical cord blood transplantation
Abstract Background Umbilical cord blood transplantation (UCBT) is a curable therapy for hematological disease; however, the impact of nutritional status on UCBT outcomes remains controversial. To evaluate the joint effect of clinical characteristics and nutritional status on the prognosis of patients who underwent UCBT, we screened various factors to establish a predictive model of overall survival (OS) after UCBT. Methods We performed an integrated clinical characteristic and nutritional risk factor analysis and established a predictive model that could be used to identify UCBT recipients with poor OS. Internal validation was performed by using the bootstrap method with 500 repetitions. Results Four factors, including disease status, conditioning regimen, calf skinfold thickness and albumin level, were identified and used to develop a risk score for OS, which showed a positive predictive value of 84.0%. A high-risk score (≥ 2.225) was associated with inferior 3-year OS post-UCBT [67.5% (95% CI 51.1–79.4%), P = 0.001]. Then, we built a nomogram based on the four factors that showed good discrimination with a C-index of 0.833 (95% CI 0.743–0.922). The optimism-corrected C-index value of the bootstrapping was 0.804. Multivariate analysis suggested that a high calf skinfold thickness (≥ 20.5 mm) and a low albumin level (< 33.6 g/L) conferred poor disease-free survival (DFS). Conclusion The predictive model combining clinical and nutritional factors could be used to predict OS in UCBT recipients, thereby promoting preemptive treatment
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