195 research outputs found
Spin-orbit and orbit-orbit strengths for radioactive neutron-rich doubly magic nucleus Sn in relativistic mean field theory
Relativistic mean field (RMF) theory is applied to investigate the properties
of the radioactive neutron-rich doubly magic nucleus Sn and the
corresponding isotopes and isotones. The two-neutron and two-proton separation
energies are well reproduced by the RMF theory. In particular, the RMF results
agree with the experimental single-particle spectrum in Sn as well as
the Nilsson spin-orbit parameter and orbit-orbit parameter thus
extracted, but remarkably differ from the traditional Nilsson parameters.
Furthermore, the present results provide a guideline for the isospin dependence
of the Nilsson parameters.Comment: 4 pages, 4 figures, Phys. Rev. C in pres
Labor Relations Conflict in the Workplace: Scale Development, Consequences and Solutions
Because the goals of employers and employees are often incompatible, conflicts are inevitable and an essential part of organizational life. The three studies reported in this paper addressed the issues of identifying the dimensions of workplace conflicts within organizations, exploring the consequences of conflicts, and finding appropriate methods of conflict resolution. The first study identified and developed three dimensions of labor relations conflict, including interest-based, rights-based, and emotion-based conflicts. The second study explored two sets of individual outcomes of labor relations conflicts and found labor relations conflicts had a negative effect on employee job satisfaction and affective commitment and positive effects on employee turnover intention and counterproductive work behavior. The third study tested the effectiveness of partnership practices as an alternative method of resolving labor relations conflicts. Suggestions are offered for future research on the labor relations conflict dimensions as well as its outcomes and solutions introduced in these studies
Microscopic and self-consistent description for neutron halo in deformed nuclei
A deformed relativistic Hartree-Bogoliubov theory in continuum has been
developed for the study of neutron halos in deformed nuclei and the halo
phenomenon in deformed weakly bound nuclei is investigated. Magnesium and neon
isotopes are studied and some results are presented for the deformed
neutron-rich and weakly bound nuclei 44Mg and 36Ne. The core of the former
nucleus is prolate, but the halo has a slightly oblate shape. This indicates a
decoupling of the halo orbitals from the deformation of the core. The generic
conditions for the existence of halos in deformed nuclei and for the occurrence
of this decoupling effect are discussed.Comment: 7 pages, 2 figures; invited talk at the XXXV Brazilian Workshop on
Nuclear Physics, Sep 2-6, 2012, Maresias, Brazi
Halos in a deformed Relativistic Hartree-Bogoliubov theory in continuum
In this contribution we present some recent results about neutron halos in
deformed nuclei. A deformed relativistic Hartree-Bogoliubov theory in continuum
has been developed and the halo phenomenon in deformed weakly bound nuclei is
investigated. These weakly bound quantum systems present interesting examples
for the study of the interdependence between the deformation of the core and
the particles in the halo. Magnesium and neon isotopes are studied and detailed
results are presented for the deformed neutron-rich and weakly bound nuclei
42Mg. The core of this nucleus is prolate, but the halo has a slightly oblate
shape. This indicates a decoupling of the halo orbitals from the deformation of
the core. The generic conditions for the existence of halos in deformed nuclei
and for the occurrence of this decoupling effect are discussed.Comment: 6 pages, 2 figures; invited talk at the 2nd Int. Conf. on Nuclear
Structure & Dynamics (NSD12), Opatija, Croatia, 9-13 July 201
Density-dependent deformed relativistic Hartree-Bogoliubov theory in continuum
The deformed relativistic Hartree-Bogoliubov theory in continuum with the
density-dependent meson-nucleon couplings is developed. The formulism is
briefly presented with the emphasis on handling the density-dependent
couplings, meson fields, and potentials in axially deformed system with partial
wave method. Taking the neutron-rich nucleus Mg as an example, the newly
developed code is verified by the spherical relativistic continuum
Hartree-Bogoliubov calculations, where only the spherical components of the
densities are considered. When the deformation is included self-consistently,
it is shown that the spherical components of density-dependent coupling
strengths are dominant, while the contributions from low-order deformed
components are not negligible.Comment: 5 pages, 3 figures, and 1 tabl
Congenital cystic adenomatoid malformation of lung in adults: 2 rare cases report and review of the literature
Congenital cystic adenomatoid malformation (CCAM), also named congenital pulmonary airway malformation (CPAM), is a congenital abnormality of lung which is uncommon in adults. Here we present 2 adult cases of CCAM with unusual clinical and pathologic findings. One case was complicated with aspergillosis which was seldom reported. The other case was suffered bilateral lesions and the patient's mother had been previously radiographically discovered bilateral cystic lesions that CCAM could not be ruled out. A review of currently published related literatures has also been provided
Effects of replacing wheat bran with palm kernel cake or fermented palm kernel cake on the growth performance, intestinal microbiota and intestinal health of tilapia (GIFT, Oreochromis niloticus)
A nine-week feeding trial was conducted to evaluate the effects of replacing wheat bran (WB) with palm kernel cake (PKC) or fermented palm kernel cake (FPKC) on the growth performance, intestinal microbiota and intestinal health of genetically improved farmed tilapia (GIFT, Oreochromis niloticus) (initial weight 7.00 ± 0.01 g). Eleven isonitrogenous and isolipidic experimental diets were formulated by replacing 0, 20, 40, 60, 80, and 100% of dietary WB with PKC or FPKC. Replacement of WB with PKC concentrations up to 80% had no significant effect on the growth rate of tilapia or feed utilisation (p > 0.05). FPKC improved the growth performance of tilapia, with optimum growth achieved at 40% replacement level (p < 0.05). Complete replacement with PKC significantly decreased the activity of lipase and trypsin, and reduced the height of muscularis and the height of villus (p < 0.05). However, FPKC significantly increased amylase activity and villus height (p < 0.05). The apparent digestibility of dry matter and energy decreased linearly with increasing levels of PKC substitution, while FPKC showed the opposite trend (p < 0.05). PKC replacement of WB by 20% significantly reduced serum diamine oxidase activity and endothelin levels and increased intestinal tight junctions (p < 0.05). However, FPKC significantly decreased diamine oxidase activity and increased intestinal tight junctions (p < 0.05). PKC completely replaced WB, up-regulating the expression of pro-inflammatory factors (il-1β) (p < 0.05). When 40% of WB was replaced with FPKC, the expression of pro-inflammatory factors (il-1β and il-6) was decreased significantly (p < 0.05). Completely replacement of WB with PKC reduced the abundance of Firmicutes and Chloroflexi, while FPKC reduced the abundance of Fusobacteriota and increased the levels of Actinobacteriota. WB can be replaced with PKC up to 80% in tilapia feeds. However, the high percentage of gluten induced intestinal inflammation, impaired gut health, and reduced dietary nutrient utilisation and growth performance. Complete replacement of WB with FPKC promoted intestinal immunity. It also improved dietary nutrient utilisation and growth performance. However, the optimal growth was achieved at a 40% replacement level
Factors affecting the early establishment of neonatal intestinal flora and its intervention measures
In recent years, it has become evident that early-life intestinal flora plays a pivotal role in determining human health. Consequently, it is imperative to explore the establishment of neonatal intestinal flora and its influencing factors. Early neonatal intestinal flora is influenced by a multitude of factors, including maternal and infant-related factors, as well as external environment. This review summarizes the colonization mechanism of intestinal flora in the early life of newborns and discussed their influence on the establishment of neonatal intestinal flora, taking into account factors such as delivery mode, gestational age and feeding mode. Additionally, this review delves into the natural or artificial reconstruction of intestinal flora colonization defects in infants born via cesarean section and premature infants, with the goal of establishing a theoretical foundation for preventing and treating issues related to neonatal intestinal flora colonization and associated diseases
YOLOv6: A Single-Stage Object Detection Framework for Industrial Applications
For years, the YOLO series has been the de facto industry-level standard for
efficient object detection. The YOLO community has prospered overwhelmingly to
enrich its use in a multitude of hardware platforms and abundant scenarios. In
this technical report, we strive to push its limits to the next level, stepping
forward with an unwavering mindset for industry application.
Considering the diverse requirements for speed and accuracy in the real
environment, we extensively examine the up-to-date object detection
advancements either from industry or academia. Specifically, we heavily
assimilate ideas from recent network design, training strategies, testing
techniques, quantization, and optimization methods. On top of this, we
integrate our thoughts and practice to build a suite of deployment-ready
networks at various scales to accommodate diversified use cases. With the
generous permission of YOLO authors, we name it YOLOv6. We also express our
warm welcome to users and contributors for further enhancement. For a glimpse
of performance, our YOLOv6-N hits 35.9% AP on the COCO dataset at a throughput
of 1234 FPS on an NVIDIA Tesla T4 GPU. YOLOv6-S strikes 43.5% AP at 495 FPS,
outperforming other mainstream detectors at the same scale~(YOLOv5-S, YOLOX-S,
and PPYOLOE-S). Our quantized version of YOLOv6-S even brings a new
state-of-the-art 43.3% AP at 869 FPS. Furthermore, YOLOv6-M/L also achieves
better accuracy performance (i.e., 49.5%/52.3%) than other detectors with a
similar inference speed. We carefully conducted experiments to validate the
effectiveness of each component. Our code is made available at
https://github.com/meituan/YOLOv6.Comment: technical repor
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