jimnoneill/paper-to-field-training huggingface dataset:
Indirect micellar spectrophotometric determination of lead in various soybean based products using green chemistry

Field: Chemistry (Physical Sciences)

The study was conducted for the purpose of quantifying lead in various samples of soy-products by micellar spectrophotometry using green chemistry approach. The ligandN2P4HB was synthesized for the purpose with the help of weak acid and is found to be soluble in alcohol, acetone and in chlorinated hydrocarbons such as chloroform. It dissolves in alkaline aqueous media but is practically insoluble in water at pH less than 6. In the presence of surfactants its solubility has been found to be increased significantly. On addition of solution of ligand in presence of surfactants to metal ion solution, colored complex were formed. The local nonpolar microenvironment of the micelles incorporates the non-polar colored complex. Secondly a marked increase in absorption intensity has also been observed. This phenomenon of micellar solubilization with increasing absorption intensity has been used to develop a novel, green, simple, inexpensive and sensitive spectrophotometric method for determination of heavy metal ion in various soy products.
Droplet Digital PCR Analysis of miR-191-3p in the Spent Blastocyst Culture Media Might Reflect the Reproductive Competence of the 3rd Day Human Embryo

Field: Medicine (Health Sciences)

Background: Droplet digital PCR analysis of human embryonic culture media collected in a proof of con-cept study on IVF pregnancy outcome. miR-191-3p was analysed in spent human embryonic culture media of morphologically similar, good quality embryos which after later transfer developed either to reproductively competent embryos and healthy neonates or of those, where miscarriage occurred in early stage of the pregnancy. Methods: Spent culture media at the morula-blastocyst stage (3rd day) were collected from embryos fertilised with ICSI and undergoing embryo transfer. After registered pregnancy outcome 40 samples from the group of reproductively competent embryos, 40 samples from miscarriage and their parallel blank culture media samples were enrolled in miRNA analysis. Isolation and quantitative detection of miRNA from embryonic culture media was carried out on automated droplet digital polymerase chain reaction platform. Results: Quantitative analysis and ANOVA evaluation confirmed miR-191-3p to be present in significantly higher concentration in the 3rd day culture media of reproductively competent human embryos (mean concentration difference=20,478, p=1 × 10-4) than the miscarriage. Control blank culturing media were negative for miR-191-3p. Conclusion: miR-191-3p present in human blastocyst culture media indicates actual embryonic origin and changed in expression patterns depending on clinical outcome after transfer. It might be a candidate molecular marker for pre-implantation assessment of reproductive embryo competence in a non-invasive way.
What Affects Decoding Complexity of Distributed Video Codec Based on Turbo Code

Field: Computer Science (Physical Sciences)

The distributed video coding (DVC) is a new coming video compression technology that utilizes a different computing complexity mode from the traditional video codec. As a new paradigm there are some fundamental and hard questions in DVC that are not sufficiently addressed, for example the complexity balance between DVC encoder and decoder. This will be an important factor for some promising real time applications. In this context, this paper studies the factors which affect the decoding complexities of turbo code based DVC, especially focuses on quantization, side information and turbo code bit rates. Analyzing and simulation results show that precise side information will decrease the turbo decoding complexity, large reductions in computations can be traded against relatively small increases in bit rate, and uniform quantizer possesses the advantage than the non-uniform quantizer in computation load at a expense of a little decrease in rate distortion performance.
Differences in Eating Quality Attributes between Japonica Rice from the Northeast Region and Semiglutinous Japonica Rice from the Yangtze River Delta of China

Field: Agricultural and Biological Sciences (Life Sciences)

Differences in cooked rice and starch and protein physicochemical properties of three japonica rice were compared systematically. Cultivars of japonica rice, Daohuaxiang2, from Northeast China (NR) and two semiglutinous japonica rice (SGJR), Nangeng46 and Nangeng2728, from the Yangtze River Delta (YRD) were investigated. Both Daohuaxiang2 and Nangeng46 achieved high taste values, but there were great differences in starch and protein physicochemical properties. Daohuaxiang2 showed higher apparent amylose content (AAC), lower protein content (PC), and longer amylopectin (especially fb2 and fb3) and amylose chain lengths, resulting in thicker starch lamellae and larger starch granule size. Its cooked rice absorbed more water and expanded to larger sizes. All of these differences created a more compact gel network and harder but more elastic cooked rice for Daohuaxiang2. Nangeng46 produced a lower AAC, a higher PC, shorter amylopectin and amylose chain lengths, thinner starch lamellae, and smaller starch granule sizes, creating a looser gel network and softer cooked rice. The two SGJR, Nangeng46 and Nangeng2728, had similar low AACs but great differences in taste values. The better-tasting Nangeng46 had a lower PC (especially glutelin content) and higher proportion of amylopectin fa chains, which likely reduced the hardness, improved the appearance, and increased the adhesiveness of its cooked rice. Overall, both types of japonica rice from the NR and YRD could potentially have good eating qualities where Nangeng46’s cooked rice was comparable to that of Daohuaxiang2 because of its lower AC. Moreover, its lower PC and higher proportion of amylopectin fa chains likely improved its eating quality over the inferior-tasting SGJR, Nangeng2728. This research lays a foundation for the improvement of the taste of japonica rice in rice breeding.
The influence of facial pattern on skeletal class I subjects- a cephalometric analysis

Field: Dentistry (Health Sciences)

Objective: The purpose of this study was to assess the correlations between the Wits appraisal (using maxillomandibular bisector as the occlusal plane), ANB analysis and facial pattern in skeletal Class I subjects Materials and methods: A retrospective chart review was completed on 100 Class I subjects according to the ANB angle. The maxillomandibular bisector (MMB) was used as the occlusal plane to determine the sagittal maxillomandibular relationship according to the Wits appraisal. Four additional measurements (mandibular plane angle, Y-axis, lower facial height and facial axis) associated with facial pattern were measured to determine whether the Wits or ANB analysis is correlated in classifying skeletal and facial patterns Results: A weak correlation was found between ANB and Wits (r=0.38) that was statistically significant (p<0.05). Correlations between ANB and all facial pattern measurements were also weak, but they were not statistically significant (p>0.05). Moreover, associations were found between Wits and facial pattern measurements ranging from low to high (-0.05 to 0.57) and were all statistically significant (p<0.05). The strongest correlations were between facial axis (r=0.57), MPA (r=-0.46) and Wits. A moderate correlation was found between lower facial height and Wits (r=-0.331). There were no substantive differences between males and females. Conclusions: The Wits appraisal using the maxillomandibular bisector occlusal plane is a valid indicator of the anteroposterior discrepancy and facial pattern. Wits may be a more accurate predictor of facial pattern vs. ANB. However, caution must be exercised in trying to relate Wits appraisal to the gold standard of the ANB angle.
A Divided City in a Time of Pandemic: Dispatches from Doha

Field: Social Sciences (Social Sciences)

<p>A Divided City in a Time of Pandemic: Dispatches from Doha</p><h2>Other Information</h2> <p> Published in: City & Society<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1111/ciso.12310" target="_blank">http://dx.doi.org/10.1111/ciso.12310</a></p>
Abstract TMP55: Post-stroke Blood Pressure Variability In The Acute Phase Is Associated With Pre-stroke Blood Pressure Variability In Patients Undergoing Mechanical Thrombectomy

Field: Medicine (Health Sciences)

Introduction: High blood pressure variability (BPV) after endovascular thrombectomy is associated with post-stroke complications and poor neurological outcomes. However, whether BPV is an epiphenomenon of the stroke itself or causally related to the outcome remains unknown. Objective: In this study we aimed to evaluate if a relationship exists between pre-and post-stroke BPV in patients with large vessel occlusions (LVO). Methods: From our prospective stroke registry, we identified patients who had an anterior circulation LVO, underwent EVT, and had at least three blood pressure measurements recorded in the electronic medical record in the six months prior to their stroke admission. All patients had repeated time-stamped blood pressure data recorded for the first 72 hours after thrombectomy. Using the standard deviation of systolic BP, we calculated BPV for each patient and separated patients into tertiles based on their post-EVT BPV. The relationship between pre-stroke BPV and post-EVT BPV was analyzed using an ordinal logistic regression and Spearman’s rank correlation analysis. Results: Two hundred fifty-two patients were included in our analysis (mean age 70±16.2 years, mean admission NIHSS 15±7, median pre-stroke BP measurements 14.5 (IQR 5.0-55.8)). Pre-stroke BPV gradually increased for patients with higher post-EVT BPV tertiles (tertile 1 = 13.2(±5.2) mmHg, tertile 2 = 15.0(±5.5) mmHg, tertile 3 = 16.7(±7.0) mmHg, p=0.001). A positive correlation was observed between pre-stroke BPV and post-EVT BPV (p<0.001, R=0.21). After adjusting for age and admission NIHSS, pre-stroke BPV was significantly associated with post-EVT BPV tertile membership (OR 1.37, 95% CI 1.02-1.86, p=0.039). Conclusion: High pre-stroke BPV is correlated with high post-EVT BPV. Although larger, prospective studies are needed to provide definitive evidence of this relationship, our work suggests that high post-EVT BPV may be related to an underlying biological phenomenon and not merely a consequence of the stroke itself. Individuals with high BPV may benefit from more intensive blood pressure management in the acute phase after EVT.
Simple X-Ray Capillary Manipulative Aid

Field: Physics and Astronomy (Physical Sciences)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Edwin M. Larsen, James J. Leddy; Simple X‐Ray Capillary Manipulative Aid. Rev Sci Instrum 1 August 1958; 29 (8): 736. https://doi.org/10.1063/1.1716315 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioReview of Scientific Instruments Search Advanced Search |Citation Search
Serum fructosamine in the assessment of glycaemic status in patients with sickle cell anaemia.

Field: Medicine (Health Sciences)

To assess the usefulness of fructosamine in evaluating the glycaemic status in patients with sickle cell anaemia.Serum fructosamine, glucose, albumin and bilirubin were measured in one hundred and fifty patients with sickle cell anaemia (HbSS), fifty poorly controlled diabetics and one hundred healthy control subjects. Fructosamine was assayed using the method of Johnson et al.None of the HbSS patients had hyperglycaemia. Serum fructosamine was significantly higher in the poorly controlled Diabetics compared to the HbSS patients and the Controls. The mean serum albumin levels were within the laboratory's reference interval in the three groups of subjects studied. There was no significant correlation between fructosamine and normal serum albumin in the three groups of subjects. Moderately raised serum bilirubin concentrations in the HbSS patients did not cause any significant interference in the assay of fructosamine in the patients.Serum fructosamine could be reliably employed as a measure of glycaemic status of patients with sickle cell anaemia with moderate hyperbilirubinaemia.
Synthesis and properties of fatty imidazolines and their N‐(2‐aminoethyl) derivatives

Field: Chemistry (Physical Sciences)

Abstract Cationic high molecular weight surfactants hold promise as water repellents for soil for water harvesting. Specifically, the products of the reaction of 2 moles of fatty acids with 1 mole of diethylenetria‐mine were investigated. Optimum conditions for the formation of imidazolines as well as the open‐chain N‐(2‐aminoethyl) derivatives, i.e., the diamides, were determined. Saturated fatty acids, pelargonic through behenic, oleic acid, elaidic acid as well as tallow, tallow fatty acids, and hydrogenated tallow fatty acids, were converted in 6 hr at 150 C to form the diamides. The fatty imidazolines were synthesized by cyclizing the diamides at 150 C for 2 hr under reduced pressure in a 92% yield. The crude imidazolines were purified by crystallization. The fatty imidazolines were readily hydrolyzed at the C=N bond of the imidazoline ring with water or dilute alcohol. The resulting diamides, RCON(CH 2 CH 2 NH 2 )CH 2 CH 2 NHCOR, were also purified by crystallization. Water repellency of these com‐pounds was evaluated by contact angle measurements and percola‐tion tests. The surface properties of these series of compounds are determined by four parameters. The open‐chain diamides are more hydrophobic than the analogous imidazolines, and hydrophobicity increases with increasing molecular weight of derivatives of saturated fatty acids. Oleic acid derivatives are far more hydrophilic than the saturated acid derivatives or the analogous elaidic acid derivatives. The latter are more hydrophilic than stearic derivatives.
Restricted replication of mouse hepatitis virus A59 in primary mouse brain astrocytes correlates with reduced pathogenicity

Field: Immunology and Microbiology (Life Sciences)

Temperature-sensitive (ts) mutants of mouse hepatitis virus A59 (MHV-A59) are drastically attenuated in their pathogenic properties. Intracerebral inoculation of mice with 10(5) PFU of mutant ts342 results in prolonged infection of the central nervous system, whereas 100 PFU of wild-type virus are lethal (M. J. M. Koolen, A. D. M. E. Osterhaus, G. van Steenis, M. C. Horzinek, and B. A. M. van der Zeijst, Virology 125:393-402, 1983). In the Sac(-) cell line ts342 grows as well at 37 degrees C (the body temperature of mice) as at 31 degrees C (the permissive temperature). There is, however, a difference in primary cultures of mouse brain astrocytes. After infection with ts342, astrocytes produced low levels of infectious virus (5.2 +/- 3.7%) compared with virus yields after infection with wild-type virus. The fraction of wild-type virus- and ts342-infected cells was similar. Electron microscopy showed in wild-type virus-infected cells abundant virions in smooth vesicles usually closely associated with a well-developed Golgi apparatus. In mutant-infected cells no mature ts342 virus particles were found. There was no difference between ts342 and wild-type virus regarding the intracellular virus-specific RNAs. In ts342-infected cells the viral glycoproteins E2 and E1 were not detectable or were barely detectable. Either the mRNAs for the glycoproteins are not translated or the proteins are rapidly broken down. Revertants of ts342 were isolated. They grew as well as wild-type virus in astrocytes, indicating that they apparently produced sufficient amounts of E2 and E1, the ts defect itself rather than a second site mutation is responsible for the defect in replication, and the ts defect acts in unison with host-cell factors. The revertants also regained the lethal properties of wild-type virus.
Sub-band-gap absorption in Ga2O3

Field: Physics and Astronomy (Physical Sciences)

β-Ga2O3 is a transparent conducting oxide that, due to its large bandgap of 4.8 eV, exhibits transparency into the UV. However, the free carriers that enable the conductivity can absorb light. We study the effect of free carriers on the properties of Ga2O3 using hybrid density functional theory. The presence of free carriers leads to sub-band-gap absorption and a Burstein-Moss shift in the onset of absorption. We find that for a concentration of 1020 carriers, the Fermi level is located 0.23 eV above the conduction-band minimum. This leads to an increase in the electron effective mass from 0.27–0.28 me to 0.35–0.37 me and a sub-band-gap absorption band with a peak value of 0.6 × 103 cm–1 at 3.37 eV for light polarized along the x or z direction. Both across-the-gap and free-carrier absorption depend strongly on the polarization of the incoming light. We also provide parametrizations of the conduction-band shape and the effective mass as a function of the Fermi level.
Prolactin storage in a clonal strain of rat pituitary tumor cells is cell-cycle dependent

Field: Biochemistry, Genetics and Molecular Biology (Life Sciences)

GH4C1 cells (CH cells) are a clonal strain of rat pituitary tumor cells which secrete prolactin. We measured intracellular prolactin at different stages of the cell cycle using flow microfluorometry. Prolactin was stained by an indirect immunocytochemical technique using fluorescein isothiocyanate (FITC)-conjugated antiserum, and DNA was stained simultaneously with propidium iodide. We found that prolactin storage in GH cells was cell-cycle dependent; prolactin storage increased as cells passed from G1 to S to G2 + M. We have shown previously that insulin and 17 beta-estradiol act synergistically to increase intracellular prolactin three- to sevenfold and slow the rate of cell growth to approximately 70% of control cells. In this study we observed that insulin and estradiol increased prolactin storage at each stage of the cell cycle but did not affect the cell-cycle distribution of the population even though cell growth was slowed. We conclude that insulin and estradiol did not increase prolactin storage by affecting the cell-cycle distribution of the population.
Bezgrebelna O. Healthy lifestyle in the realities of the educational process of physical education of students during the quarantine

Field: Health Professions (Health Sciences)

The question of a healthy way of life of students in the conditions of quarantine restrictions is considered. The urgency of scientific research is caused by the sharp deterioration of the physical and mental condition of students due to the introduction of quarantine in the country caused by the COVID-19 pandemic, and in higher education institutions of distance learning. A necessary main prerequisite for maintaining health in quarantine is a healthy lifestyle, as a system of conditions that contribute to the strengthening and preservation of health. The purpose of the work is to identify areas for ensuring a healthy lifestyle of students during quarantine in the educational process of physical education. Research methods: theoretical analysis, systematization, comparison, generalization of literature data. According to the results of scientific research, the important and unique importance of physical education in the process of ensuring a healthy lifestyle of students has been proved. The directions of ensuring a healthy lifestyle of students during quarantine in the educational process of physical education are systematized: formation of students 'stable motivations for a healthy lifestyle application of all possible technologies in classroom and extracurricular physical education classes to educate students' needs and ability to maintain and improve their health. I; to provide students with a wide range of knowledge, on the basis of which the worldview of a healthy lifestyle should be formed; acquaintance of students with alternative methods of usual physical activity, for counteraction to negative consequences of quarantine and social isolation; development of programs and technological models of forming a healthy lifestyle by means of physical culture; development of methodical recommendations on physical education on the basis of innovative methods adapted for use at home during quarantine, in the situation of impossibility to use sports halls of educational institutions, sports clubs and playgrounds. The practical implementation of the findings is aimed at radical changes that will affect the development of physical education to ensure the health of students.
Distribution of tyrosinated and nontyrosinated alpha-tubulin during mitosis

Field: Biochemistry, Genetics and Molecular Biology (Life Sciences)

The C-terminus of alpha-tubulin undergoes a reversible posttranslational tyrosination/detyrosination. The distributions of the tyrosinated (Tyr) and nontyrosinated (Glu) species during mitosis of cultured cells have been investigated by immunofluorescence using antibodies directed against the C-terminus of either Tyr or Glu tubulin. The distribution of Tyr tubulin differed from that of Glu tubulin at each stage of mitosis; in general, the distribution of Tyr tubulin was similar to that of total tubulin, whereas Glu tubulin had a more restricted distribution. The Glu species was found in half-spindle fibers but was not detected in astral fibers at any stage and was seen in the interzone only during telophase. These results were confirmed by a direct comparison of the distributions of Tyr and Glu tubulin in cells double-labeled with the two antibodies. Evidence for the occurrence of Tyr and Glu tubulin in each class of half-spindle fibers (kinetochore and polar) was obtained from the staining patterns of the two antibodies in cold-treated cells. Immunoblots of extracts prepared from synchronous mitotic cells showed that Glu tubulin was a minor species of the total tubulin in the spindle; no changes in the amount of either Tyr or Glu tubulin were detected at any stage of mitosis. These results show that Tyr tubulin is the major species in the mitotic spindle and is found in all classes of spindle fibers, whereas Glu tubulin is present in small amounts and shows a more restricted distribution. The presence of two biochemically distinct forms of alpha- tubulin in the spindle may be important for spindle function.