OBJECTIVETo summarize the characteristics of sacral cysts containing fila terminale and to explore the surgical treatment methods. METHODSThe clinical features, imaging characteristics and surgical ...methods of 21 cases of sacral cysts containing fila terminale from July 2010 to March 2017 were reviewed and analyzed. Lumbosacral and perineal pain, weakness of the lower limbs and bladder and bowel dysfunction were the common clinical symptoms. MRI showed that the cysts located in the sacral canal. The lower T1 and higher T2 signals were found on MRI. There were fila terminale within the cysts which tethered the spinal cord. No enhancement was visible within the lesion. The key steps of operation included the resection of the cyst wall, the cutting off of the fila terminale, the release of the tethered cord and the reconstruction of the cisterna terminalis. RESULTSThe total and subtotal resections of cyst walls were achieved in 14 and 7 cases, respectively. The fila terminales were separated and cut off in all th
This paper is devoted to the study of the effective elastic properties of doubly periodic array of functionally graded inclusion problems by an iterative FE-BE coupling method. This method has some ...advantages compared with boundary element method (BEM), e.g. (1) inclusions can be isotropic, orthotropic, anisotropic or functionally graded materials; (2) various shaped inclusions can be easily solved; (3) the fundamental solutions for functionally graded inclusion materials are not needed. Some numerical examples are used to validate the applicability and reliability of the adopted scheme.
High-iron Fe–Zr–Si amorphous ribbons were fabricated through the melt-spun technique. Then, the effects of Si content on the glass-forming ability and magnetic properties of Fe
90−
x
Zr
10
Si
x
(
x
= ...1, 2, 3, 4, 5, 10) alloys were investigated. Results showed that the amorphous structure only formed in an alloy composition of 3 at.% Si. Moreover,
α
-Fe(Si) and Fe
3
Zr phase appeared gradually when Si was added. Fe
87
Zr
10
Si
3
alloy is a unique amorphous structure in Fe
90−
x
Zr
10
Si
x
ribbons. The peak temperatures of the two crystallization stages were 464 and 600
∘
C. The saturation magnetization (
M
s
) values of the alloys ranged from 91.2 to 132.3 emu/g, and all had an initial increase before decreasing and their coercivity (
H
c
) values increased with increased Si content. The Fe
87
Zr
10
Si
3
amorphous alloy exhibited a low
H
c
value of approximately 39.1 A/m, which shows good magnetic properties in the as-quenched state. After annealing, the
M
s
of the amorphous sample considerably improved, particularly reaching 165.3 emu/g at 600
∘
C.
Based on (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector operating at the BEPCII collider, the decay ψ(3686)→ϕK0SK0S is observed for the first time. Taking the interference between ...ψ(3686) decay and continuum production into account, the branching fraction of this decay is measured to be B(ψ(3686)→ϕK0SK0S)=(3.53±0.20±0.21)×10−5, where the first uncertainty is statistical and the second is systematic. Combining with the world average value for B(J/ψ→ϕK0SK0S), the ratio B(ψ(3686)→ϕK0SK0S)/B(J/ψ→ϕK0SK0S) is determined to be (6.0±1.6)%, which is suppressed relative to the 12% rule.
► The titanium adhesion layer surface characteristic plays a remarkable influence on the structural and electrical properties of the sputter deposited Ta films. ► The adhesion layer of titanium ...without breaking vacuum always promote the tantalum films to grow with the orientation following that of the bottom titanium layer and nucleate bcc α phase of tantalum. ► The underlying titanium film with exposure its surface to atmosphere for 24h would restrain the nucleation of α-Ta and promote the growth of β-Ta. ► The mechanism explains the difference of the growth mode of the tantalum films.
The influence of a sputter-deposited titanium adhesion layer on glass and Si (111) substrates with or without exposure of titanium layer surface to the atmosphere on the growth mode of the tantalum films was studied. It was found that, because of the well match of the cell constants between the deposited Ta and the underlying Ti, the tantalum films continuously deposited on the adhesion layer of titanium grown without breaking vacuum always grew with the orientation following that of the bottom titanium layer and nucleated bcc α phase of tantalum with low degrees of orientation. After exposure of the bottom titanium layer surface to atmosphere, the absorption and diffusion of oxygen and other impurity atoms on the surface would promote a higher lever of oxidation and favor to form more and more titanium suboxides at the Ti surface. The increase of titanium suboxides at the Ti surface change the lattice mismatch between the underlying titanium film and the bcc-Ta film, which disturbed the nucleation of α-Ta and promoted the growth of β-Ta. Consequently, the electrical properties of the Ta/Ti bi-layer films were significantly changed.
Extended Biologische Bundesantalt, Bundessortenamt and Chemische Industrie scale was applied to achieve precise and normative description of each growth stage of longan. The entire growth cycle of ...longan was divided into seven primary stages, namely, development of shoots, leaves and branches, formation of inflorescence, flowering, fruit development and maturity. These primary stages were further subdivided into 47 secondary stages. This study focused on the entire fruit development process of longan. The correlation between phenology, temperature and humidity was also discussed. Knowledge of these rules will provide guidance for the implementation of production management measures, including fertilisation, disease and pest control, branch control, flower induction, flower and fruit retention and application of growth regulator. The present findings will also help longan planters to adopt the most appropriate cultivation and management measures according to the climate conditions and growth status of the trees.
In this study, we identified potential serum biomarkers for the diagnosis of active tuberculosis (TB) and screening for latent TB infections (LTBIs). Peripheral blood samples from 40 healthy ...individuals, 40 patients with TB, and 40 LTBI individuals were stimulated with the TB-specific antigens ESAT-6 and CFP-10. Human inflammatory cytokine arrays were used to detect the expression of inflammatory cytokines. Cytokines with significant changes were screened to construct a cytokine regulation network. The levels of the cytokines CCL1 (I-309), CXCL9 (MIG), IL-10, IL-6, CSF2, CSF3, IL-8, IL-1α, IL-7, TGF-β1, CCL2, IL-2, IL-13, and TNFα were significantly upregulated in the active TB group. The levels of CCL3, IL-1β, CCL8, IFNγ, and CXCL10 were significantly increased in the TB groups compared to those in the healthy control group. sTNF RII was upregulated in the LTBI group. CCL4 and MIP1d were significantly increased in all groups.The upregulated cytokines were mainly found in the IFNγ and IL-1α regulatory networks. Importantly, we found that CXCL10 (IP-10), CCL3, CCL8, and IL-1β may be more suitable than IFNγ for active or latent TB infection screening. Furthermore, we found that levels of CCL1 (I-309), CXCL9 (MIG), IL-10, IL-6, CSF2, CSF3, IL-8, IL-1α, IL-7, TGF-β1, CCL2, IL-2, and IL-13 after TB antigen stimulation may help distinguish between active and latent TB.
PDF
