170,853 research outputs found
Rotationally resolved infrared spectrum of the Li+-D-2 cation complex
No full textThe infrared spectrum of mass selected Li+-D-2 cations is recorded in the D-D stretch region (2860-2950 cm(-1)) in a tandem mass spectrometer by monitoring Li+ photofragments. The D-D stretch vibration of Li+-D-2 is shifted by -79 cm(-1) from that of the free D-2 molecule indicating that the vibrational excitation of the D-2 subunit strengthens the effective Li+center dot D-2 intermolecular interaction. Around 100 rovibrational transitions, belonging to parallel K-a=0-0, 1-1, and 2-2 subbands, are fitted to a Watson A-reduced Hamiltonian to yield effective molecular parameters. The infrared spectrum shows that the complex consists of a Li+ ion attached to a slightly perturbed D-2 molecule with a T-shaped equilibrium configuration and a 2.035 A vibrationally averaged intermolecular separation. Comparisons are made between the spectroscopic data and data obtained from rovibrational calculations using a recent three dimensional Li+-D-2 potential energy surface [R. Martinazzo, G. Tantardini, E. Bodo, and F. Gianturco, J. Chem. Phys. 119, 11241 (2003)]. (c) 2006 American Institute of Physics
Synthesis of L-glucose and L-galactose derivatives from D-sugars
No full textAn efficient route to prepare L-glucose and L-galactose is described. The L-sugars are achieved by using the strategy of switching the functional groups at C1 and C5 of D-glucose and D-mannose. The oxidation and reduction of the silyl enol ether at C1 and the lead(IV) tetraacetate mediated oxidative decarboxylation at C5 are the key steps. L-Glucose and L-galactose are prepared in a convenient and inexpensive way. (C) 2014 Shu-Chun Li and Zhong-Jun Li. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000345880500003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Chemistry, MultidisciplinarySCI(E)中国科技核心期刊(ISTIC)中国科学引文数据库(CSCD)[email protected]; [email protected]
M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data: v1.2.0
No full text<p>Q4/23-Release of the whole project repository, including the schema and data folders.</p>
<h2>What's Changed</h2>
<ul>
<li>Increment schema minor version by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/369</li>
<li>Update readme by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/370</li>
<li>Update links by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/372</li>
<li>Auto-format files by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/374</li>
<li>Use CRediT roles in schema by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/375</li>
<li>Add meeting protocol by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/376</li>
<li>Housekeeping by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/382</li>
<li>update changelog by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/384</li>
<li>Edit schema changelog by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/385</li>
<li>Add CRediT role IDs by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/388</li>
<li>add missing keywords by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/390</li>
<li>add project by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/391</li>
<li>add new projects by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/393</li>
<li>add date by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/394</li>
<li>Add new projects by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/395</li>
<li>Fix relation: kalimat and oes by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/396</li>
<li>add projects by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/397</li>
<li>Auto-format files by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/398</li>
<li>add projects by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/400</li>
<li>add projects by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/401</li>
<li>fix minor mistakes in keywords by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/402</li>
<li>add projects by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/403</li>
<li>Merge upstream changes by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/405</li>
<li>Housekeeping by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/404</li>
<li>add projects by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/406</li>
<li>Auto-format files by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/407</li>
<li>Fix broken links by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/408</li>
<li>Update keywords by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/410</li>
<li>Auto-format files by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/411</li>
<li>Housekeeping by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/412</li>
<li>Edit meeting protocol by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/415</li>
<li>update the protocole and add a link by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/414</li>
<li>Update Prettier dependency by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/416</li>
<li>Update branch name by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/417</li>
<li>add project: elephantine by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/418</li>
<li>Add <code>maintained</code> field to schema by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/419</li>
<li>Mark projects as maintained by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/421</li>
<li>Edit project description by @theodore-s-beers in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/422</li>
<li>bump the schema to 0.2.2 by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/423</li>
<li>fix to project end date by @mabarber92 in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/425</li>
<li>add project: classicmayan by @XeniaMonika in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/426</li>
</ul>
<h2>New Contributors</h2>
<ul>
<li>@mabarber92 made their first contribution in https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/pull/425</li>
</ul>
<p><strong>Full Changelog</strong>: https://github.com/M-L-D-H/Closing-The-Gap-In-Non-Latin-Script-Data/compare/v1.1.0...v1.2.0</p>
Lithium Toxicity in Lepidium sativum L. Seedlings: Exploring Li Accumulation’s Impact on Germination, Root Growth, and DNA Integrity
No full textThe predicted increase in demand for minor metals for modern technologies raises major concerns regarding potential environmental concentration increases. Among the minor metals, lithium (Li) is particularly noteworthy due to growing demand for battery production. Concerns have been raised about the impact on biota of increasing Li concentrations in the environment. To expand the knowledge of the effects of Li on plants, garden cress (Lepidium sativum L.), a model plant for ecotoxicity assay, was tested in a 72 h test in Petri plates. The results showed a stimulation effect of Li at the lowest concentration (Li chloride 10 mg L−1) on seed germination and primary root elongation. Conversely, higher Li concentrations (50 and 150 mg L−1) caused a progressive impairment in both parameters. A genotoxic effect of Li on root cells, evaluated through the alkaline comet assay, was observed at each concentration tested, particularly at 150 mg L−1 Li chloride. Elemental analysis showed that Li accumulated in the seedlings in a dose–concentration relationship, confirming its ability to be readily absorbed and accumulated in plants. Given the likely increase in Li levels in the environment, further research is required to clarify the toxicity mechanisms induced by Li on growth and nucleic acids
First observation of B → D ̄_1 (→ D ̄ π+π-) l+ν l and measurement of the B → D ̄(∗) π l+ νl and B → D ̄(∗) π+ π- l+ νl branching fractions with hadronic tagging at Belle
No full textWe report measurements of the ratios of branching fractions for B→D ̄(∗)πl+νl and B→D ̄(∗)π+π-l+νl relative to B→D ̄∗l+νl decays with l=e, μ. These results are obtained from a data sample that contains 772×106BB ̄ pairs collected near the Υ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. Fully reconstructing both B mesons in the event, we obtain B(B0→D ̄0π-l+νl)B(B0→D∗-l+νl)=(7.23±0.36±0.14)%, B(B+→D-π+l+νl)B(B+→D ̄∗0l+νl)=(6.78±0.24±0.18)%, B(B0→D ̄∗0π-l+νl)B(B0→D∗-l+νl)=(11.10±0.48±0.23)%, B(B+→D∗-π+l+νl)B(B+→D ̄∗0l+νl)=(9.50±0.33±0.34)%, B(B0→D-π+π-l+νl)B(B0→D∗-l+νl)=(2.91±0.37±0.26)%, B(B+→D ̄0π+π-l+νl)B(B+→D ̄∗0l+νl)=(3.10±0.26±0.22)%, B(B0→D∗-π+π-l+νl)B(B0→D∗-l+νl)=(0.99±0.43±0.20)%, B(B+→D ̄∗0π+π-l+νl)B(B+→D ̄∗0l+νl)=(1.25±0.27±0.15)%, where the uncertainties are statistical and systematic, respectively. These are the most precise measurements of these branching fraction ratios to date. The invariant mass spectra of the Dπ, D∗π, and Dππ systems are studied, and the branching fraction products B(B0→D2∗-l+νl)×B(D2∗-→D ̄0π-)=(0.157±0.015±0.005)%, B(B+→D ̄0∗0l+νl)×B(D ̄0∗0→D-π+)=(0.054±0.022±0.005)%, B(B+→D ̄2∗0l+νl)×B(D ̄2∗0→D-π+)=(0.163±0.011±0.008)%, B(B0→D1-l+νl)×B(D1-→D ̄∗0π-)=(0.306±0.050±0.029)%, B(B0→D1′-l+νl)×B(D1′-→D ̄∗0π-)=(0.206±0.068±0.025)%, B(B0→D2∗-l+νl)×B(D2∗-→D ̄∗0π-)=(0.051±0.040±0.010)%, B(B+→D ̄10l+νl)×B(D ̄10→D∗-π+)=(0.249±0.023±0.015)%, B(B+→D ̄1′0l+νl)×B(D ̄1′0→D∗-π+)=(0.138±0.036±0.009)%, B(B+→D ̄2∗0l+νl)×B(D ̄2∗0→D∗-π+)=(0.137±0.026±0.009)%, B(B0→D1-l+νl)×B(D1-→D-π+π-)=(0.102±0.013±0.009)%, B(B+→D ̄10l+νl)×B(D ̄10→D ̄0π+π-)=(0.105±0.011±0.009)%, are extracted. This is the first observation of the decays B→D ̄1l+νl with D1→Dπ+π-
The amoebal MAP kinase response to Legionella pneumophila is regulated by DupA
No full textThe amoeba Dictyostelium discoideum can support replication of Legionella pneumophila. Here we identify the dupA gene, encoding a putative tyrosine kinase/dual-specificity phosphatase, in a screen for D. discoideum mutants altered in allowing L. pneumophila intracellular replication. Inactivation of dupA resulted in depressed L. pneumophila growth and sustained hyperphosphorylation of the amoebal MAP kinase ERK1, consistent with loss of a phosphatase activity. Bacterial challenge of wild-type amoebae induced dupA expression and resulted in transiently increased ERK1 phosphorylation, suggesting that dupA and ERK1 are part of a response to bacteria. Indeed, over 500 of the genes misregulated in the dupA(-) mutant were regulated in response to L. pneumophila infection, including some thought to have immune-like functions. MAP kinase phosphatases are known to be highly upregulated in macrophages challenged with L. pneumophila. Thus, DupA may regulate a MAP kinase response to bacteria that is conserved from amoebae to mammals
Prospecting for water in the transition zone: d ln(Vs)/d ln(Vp)
No full textWe report the values of R = d ln(Vs)/d ln(Vp) due to water as a function of pressure for Mg(2)SiO(4) olivine, wadsleyite, ringwoodite. The results show that ringwoodite has significantly lower R than olivine and wadsleyite; due to the reason that bulk modulus of ringwoodite is more sensitive to water than shear modulus. R of ringwoodite decreases with pressure while R of olivine and wadsleyite increases with pressure. R reported here was calculated using theoretical method derived equation of states. R due to temperature is also reported as a comparison of R due to water. The local value of R in the upper mantle and transition zone can discriminate between lateral variations of water content and temperature as the origin of lateral seismic variations. Published by Elsevier B.V
Kwalita’ tal-ħajja għat-tarbija li se titwieled
No full textFl-aħħar ħmistax-il sena psikologi ewlenin ikkonfermaw permezz ta’riċerka medika u l-esperjenza klinika li t-tarbija fil-ġuf tisma ', ittiegħem,
tħoss, u titgħallem; u dak li tesperjenza jibda jifforma l-attitudnijiet u l-aspettattivi tagħha dwarha nnifisha. Huwa ta 'importanza kbira allura, li
aħna nifhmu dan is-suġġett tajjeb biżżejjed, biex inkunu nistgħu nipprovdu l-aħjar ambjent u ħajja ta’ kwalita’ għat-tarbija fil-ġuf.
Iżda ħa niehdu pass wieħed wara l-ieħor ... Nixtieq li naqsam dawn il-ftit ħsibijiet magħkom, liebsa l-kpiepel differenti tiegħi ta’ social worker u
akkademika fil-qasam, ħaddiema volontarja maż-żgħażagħ u adulti għal ħafna snin, chairperson tal-kummissjoni nazzjonali familja - fejn aħna
nikkonċernaw ruhna dwar il-benesseri tal-membri kollha tal-familja – u fl-aħħar u mhux l-inqas omm ta 'żewġt itfal u omm li esperjenzajt it-telfa u
l-uġigħ ta’ miscarriage. Dan ma kienx sempliċiment esperjenza medika, iżda esperjenza profondament emozzjonali!
Jiena ħdimt u għadni naħdem ma' żgħażagħ u adulti li jkunu qed jesperjenzaw sens profond ta' rifjut, ansjetà, sens li qatt ma jistgħu jogħġbu lil
ħadd, wisq inqas lilhom infushom. Permezz ta’ ħidma intensiva, spiss jirnexxielna nittraċċaw l-għeruq ta 'dawn il-kwistjonijiet, għall-ħajja
tagħhom fil-ġuf. Tfal mhux mixtieqa, tfal mhux ippjanati; tfal li ommhom riedu jabortixxu; tfal li baqgħu ħajjin wara attentat ta’ abort ... it-taqlib
psikoloġiku u emozzjonali li jkunu qed jesperjenzaw fil-ħajja tagħhom huwa ta’ qsim il-qalb. Qrajt u qsamt hafna stejjer kliniċi ta' psikoterapewti u
ta' counsellors li esperjenzaw sitwazzjonijiet simili. Ir-riċerka fil-qasam qed tindika b'mod ċar li t-tarbija fil-ġuf hija sensittiva, tħoss, hija konxja u
tista’ tiftakar. Psikologi prenatali huma konvinti li l-qofol tal-personalità tal-bniedem tifforma fil-ġuf. Studji juru li din il-formazzjoni tal-personalità
isseħħ permezz ta' komunikazzjoni intensiva bejn il-ġenituri - speċjalment l-omm - u t-tarbija fil-ġuf. Hija l-kombinazzjoni ta' dawn ir-realtajiet li wassluni biex nagħżel li nitkellem dwar dan is-suġġett. Nemmen bis-sħiħ li nistgħu niżguraw li t-tfal
jikbru f’ambjent kemm jista’ jkun pożittiv, mill-mument tal-konċepiment. Il-ġuf huwa d-dinja ewlenija tat-tfal – u dawn it-tfal jistgħu jesperjenzaw
din id-dinja bħala faċli jew bħala ostili. Huwa inkontestabbli li l-kwalità tal-ambjent u l-kwalita’ tal-ħajja fil-ġuf, hija determinata prinċipalment millġenituri.peer-reviewe
Structure and elasticity of hydrous ringwoodite: A first principle investigation
No full textFirst principle calculations were performed to investigate structural, IR, and elastic properties of hydrous ringwoodite and their evolution with pressure up to 36 GPa. Hydrogen defects are introduced by creating Mg- or Si-vacancies Mg(1.875)H(0.25)SiO(4), Mg(1.75)H(0.5)SiO(4) and Mg(2)Si(0.875)H(0.5)O(4). Energy considerations imply that the Mg-vacancy coupled substitution will be the easiest to form, but, in the Earth, both vacancies will participate in the process. Calculated IR spectra, when compared with reported observations, suggest that both types of defects are abundant in synthetic samples. We find that (d ln V(S)/d ln V(P)) for lateral variations in the H content of ringwoodite will be quite small, suggesting that this quantity will be a sensitive metric for identifying the presence of dissolved water in the transition zone. The calculated bulk modulus decreases linearly with increasing water content with dK/d(C(H2O)) -7.1(GPa/wt%) at room pressure, decreasing to - 6.0(GPa/wt%) at 20 GPa. The shear modulus similarly demonstrates a decrease with increased water content given, averaged over the substitution models, by dG/d(C(H2O)) = -3.0(GPa/wt%) at room pressure, decreasing to - 1.8 (GPa/wt%) at 20GPa. Over this pressured range, the water induce variation of d ln(V(S))/d ln(V(P)) is 0.62 at 0 GPa to 0.2 at 20 GPa. Published by Elsevier B.V
Study of decay dynamics and CP asymmetry in D+ -> K(L)(0)e(+)nu(e) decay
No full textUsing 2.92 fb(-1) of electron-positron annihilation data collected at root s = 3.773 GeV with the BESIII detector, we obtain the first measurements of the absolute branching fraction B(D+ -> K(L)(0)e(+)nu(e)) = (4.481 +/- 0.027(stat) +/- 0.103(sys))% and the CP asymmetry A(CP)(D+-> KL0e+nu e) = (-0.59 +/- 0.60(stat) +/- 1.48(sys))%. From the D+ -> K(L)(0)e(+)nu(e) differential decay rate distribution, the product of the hadronic form factor and the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element, f(+)(K)(0)vertical bar V-cs vertical bar, is determined to be 0.728 +/- 0.006(stat) +/- 0.011(sys). Using vertical bar V-cs vertical bar from the SM constrained fit with the measured f(+)(K)(0)vertical bar V-cs vertical bar, f(+)(K)(0) = 0.748 +/- 0.007(stat) +/- 0.012(sys) is obtained, and utilizing the unquenched Lattice QCD (LQCD) calculation for f(+)(K)(0), vertical bar V-cs vertical bar = 0.975 +/- 0.008(stat) +/- 0.015(sys) +/- 0.025(LQCD)
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