bluuebunny/crossref_metadata_2025_split huggingface dataset:
Half-sandwich (η5-Cp*)Rh(iii) complexes of pyrazolated organo-sulfur/selenium/tellurium ligands: efficient catalysts for base/solvent free C–N coupling of chloroarenes under aerobic conditions
Authors: Sharma Charu , Srivastava Avinash Kumar , Sharma Kamal Nayan , Joshi Raj Kumar 
Published: April 2020

Three new Rh(iii) complexes of organochalcogen (S/Se/Te) ligands were synthesized and along with a co-catalyst Cu(OAc)2, used for the base/solvent free catalysis of Buchwald type C–N coupling of amines and aryl chlorides under aerobic conditions.
Connecting measurements of solar and stellar brightness variations
Authors: Nèmec N.-E. , Işık E. , Shapiro A. I. , Solanki S. K. , Krivova N. A. , Unruh Y. 
Published: April 2020

Context. A comparison of solar and stellar brightness variations is hampered by the difference in spectral passbands that are used in observations, and also by the possible difference in the inclination of the solar and stellar rotation axes from the line of sight.
Aims. We calculate the rotational variability of the Sun as it would be measured in passbands used for stellar observations. In particular, we consider the filter systems used by the CoRoT, Kepler, TESS, and Gaia space missions. We also quantify the effect of the inclination of the rotation axis on the solar rotational variability.
Methods. We employed the spectral and total irradiance reconstruction (SATIRE) model to calculate solar brightness variations in different filter systems as observed from the ecliptic plane. We then combined the simulations of the surface distribution of the magnetic features at different inclinations using a surface flux transport model with the SATIRE calculations to compute the dependence of the variability on the inclination.
Results. For an ecliptic-bound observer, the amplitude of the solar rotational variability, as observed in the total solar irradiance (TSI), is 0.68 mmag (averaged over solar cycles 21–24). We obtained corresponding amplitudes in the Kepler (0.74 mmag), CoRoT (0.73 mmag), TESS (0.62 mmag), Gaia G (0.74 mmag), Gaia GRP (0.62 mmag), and Gaia GBP (0.86 mmag) passbands. Decreasing the inclination of the rotation axis decreases the rotational variability. For a sample of randomly inclined stars, the variability is on average 15% lower in all filter systems we considered. This almost compensates for the difference in amplitudes of the variability in TSI and Kepler passbands, making the amplitudes derived from the TSI records an ideal representation of the solar rotational variability for comparison to Kepler stars with unknown inclinations.
Conclusions. The TSI appears to be a relatively good measure of solar variability for comparisons with stellar measurements in the CoRoT, Kepler, TESS Gaia G, and Gaia GRP filters. Whereas the correction factors can be used to convert the variability amplitude from solar measurements into the values expected for stellar missions, the inclination affects the shapes of the light curves so that a much more sophisticated correction than simple scaling is needed to obtain light curves out of the ecliptic for the Sun.
Update Reanimation – präklinische Reanimation
Authors: Wnent Jan , Gräsner Jan-Thorsten , Maurer Holger 
Published: April 2020

ZusammenfassungHerz-Kreislauf-Erkrankungen gehören zu den häufigsten Todesursachen in der westlichen Welt. Daher ist der Herz-Kreislauf-Stillstand ein gängiges Krankheitsbild im Rettungsdienst – aber auch eine der zeitkritischsten Entitäten in der Notfallmedizin. Dieser Beitrag beschreibt die wesentlichen Maßnahmen im Rahmen der präklinischen Reanimation gemäß der aktuellen europäischen Leitlinie.
Biomechanical Comparison of Two Conical Coupling Plate Constructs for Cat Tibial Fracture Stabilization
Authors: MacArthur Sandra L. , Johnson Matthew D. , Lewis Daniel D. 
Published: April 2020

Abstract
Objective This study aimed to compare the biomechanical characteristics of two conical coupling plate (CCP) constructs in an ex vivo feline tibial fracture gap model.
Study Design Paired tibiae harvested from eight recently euthanatized cats were alternately assigned to one of two stabilization groups. One tibia was stabilized with a standard, 6-hole, 2.5-mm CCP and the contralateral tibia was stabilized with a 6-hole, 2.5-mm prototype CCP (pCCP). Non-destructive cyclic four-point craniocaudal bending, mediolateral bending and axial compression testing were performed, and stiffness was recorded. The specimens were then loaded to failure in axial compression, and yield and failure loads were recorded.
Results During non-destructive testing, the pCCP constructs were significantly stiffer than the CCP constructs in both modes of bending and axial loading. Both constructs demonstrated significantly greater craniocaudal bending stiffness compared with mediolateral bending. Yield load and failure load were significantly greater for the pCCP constructs.
Conclusion The augmented design of the pCCP yielded superior mechanical characteristics during both non-destructive and destructive testings compared with constructs employing standard CCP. The more rigid design of the pCCP suggests that this implant may be better at withstanding greater loads, particularly when applied in a bridging fashion, during the postoperative convalescence. Further investigations are warranted to prospectively evaluate the clinical performance of the pCCP.
Prescription Pattern of Primary Osteoarthritis in Tertiary Medical Centre
Authors: Kanneppady Sowmya Sham , Kanneppady Sham Kishor , Raghavan Vijaya , Oo Aung Myo , Lwin Ohn Mar 
Published: April 2020

Abstract
Objectives: Osteoarthritis (OA) is one of the commonest joint/musculoskeletal disorders, affecting the middle aged and elderly, although younger people may be affected as a result of injury or overuse. The study aimed to analyze the data, evaluate the prescription pattern and rationality of the use of drugs in the treatment of primary OA with due emphasis on the available treatment regimens.
Materials and methods: Medical case records of patients suffering from primary OA attending the department of Orthopedics of a tertiary medical centre were the source of data. The study was carried out prospectively for a period of 20 months (from December 2012 to July 2014).
Results: 296 case records were collected in which the total number of drugs prescribed were 550. OA was more common in females (51.7%) and was more prevalent in the age group of 30–40 years (39%). Out of 550 drugs prescribed, Aceclofenac was the most frequently prescribed NSAID (29%) followed by Diclofenac (23%). Nimesulide and Paracetamol was the most commonly prescribed fixed dose combination (53). Among gastroprotectives, Ranitidine figured in 66 prescriptions. Glucocorticoids were prescribed orally and intraarticularly in 17 and 14 cases respectively. Dietary supplements like Calcium+Vitamin D (42) and Glucosamine Sulfate + Chondroitin Sulfate complex (19) were also prescribed.
Conclusion: The above study highlights the rational use of therapeutic agents for primary OA.
Knowledge on Vitamin D Deficiency among Antenatal Women in a
View to Prepare Information Guide Sheet
Authors: R. Anishlyn , Punnose Anna , Khonja Josephine , J. Shiji P , D'Silva Precilla 
Published: April 2020

AbstractVitamin D is essential to maintain bone health, playing a key role in bone mineralization. Severe vitamin D deficiency in children results in rickets. As stores of vitamin D in newborns are dependent on maternal vitamin D status, vitamin D deficiency during pregnancy leads to infant vitamin D deficiency and thus increases risk of rickets.
Objectives: To assess the knowledge regarding Vitamin D deficiency and to find the association of knowledge score and demographic variables.
Materials and Methods: A descriptive approach was adopted for this study. The study was conducted in OBG outpatient department of tertiary Hospital at Mangaluru. The study sample was 100 antenatal women. A knowledge questionnaire was used to collect the data regarding knowledge on vitamin D deficiency.
Result: In this study 65% of antenatal women had average knowledge, 34% antenatal women had poor knowledge and single antenatal women had good knowledge on vitamin D deficiency. The knowledge in the area of complication to the fetus was 38%, knowledge in the other areas were daily requirements 56%, prevention 52% and signs and symptoms 48%.
Interpretation and conclusion: After conducting the study the result showed that, majority of the antenatal women had average knowledge regarding vitamin D deficiency. For further improvement of the knowledge, antenatal women were provided with an information guide sheet (pamphlet).
Opioids in the World of Oral and Maxillofacial Surgery- A Review
Authors: C. Muraleemohan , Shetty Pratiksha , Roy Satadru , Prasad B. Rajendra 
Published: April 2020

AbstractPain control is one of the most difficult challenges in medicine and a key facet of disease management. The isolation of Morphine by Friedrich Sertürner in 1804 added an essential pharmacological tool in the treatment of pain and spawned the discovery of a new class of drugs known collectively as Opioid analgesics. To date, Morphine and other opioids remain essential analgesics for alleviating pain. However, their use is plagued by major side effects, such as analgesic tolerance (diminished pain-relieving effects), hyperalgesia (increased pain sensitivity), and drug dependence. Despite the potential side effects, opioids remain the pharmacological cornerstone of modern pain therapy. Opioids are particularly effective for treating acute moderate-to-severe pain after surgery or trauma. Just like other disciplines of Medicine, pain management is an integral part in Oral and Maxillofacial Surgery. The wide domain of diseases and the procedures involved in treating them, require profound analgesia for sound patient management. In order to achieve that , Opioid analgesics play a vital role for providing long term pain free period, thus enjoying a widespread use in this field. Critical to the employment of Opioid therapy are proper patient evaluation and use of comprehensive management strategies. If certain criteria are followed, administration of oral opioids may be a successful means of decreasing the patient's debilitating chronic pain to tolerable levels, enabling an improvement in the quality of life and return to function. This article is an attempt to review the commonly used opioids and their extensive application in routine maxillofacial surgery practice.
Applications of Photodynamic Therapy in Management of Periodontal Disease - A Review
Authors: Inasu Shiny , Thomas Biju 
Published: April 2020

AbstractA novel noninvasive photochemical approach for infection control, namely photodynamic therapy, has received much attention in the treatment of oral diseases which requires three nontoxic ingredients namely visible harmless light, a photosensitizer and oxygen are involved in this therapy. It is based on the principle that a photosensitizer binds to the target cells which when activated by light of a suitable wavelength results in the production of singlet oxygen and other very reactive agents that are extremely toxic to certain cells and bacteria. This article highlights the application of photo-dynamic therapy in management of periodontal disease and its current status.
Dysbiosis of Oral Microflora: A Review
Authors: Hegde Mithra N ,   Mrinalini
Published: April 2020

AbstractMicroorganisms being an integral part of human body colonise various sites, with oral cavity being one of the most densely populated environment. Within the oral cavity there are varying environment, properties of which determines the type of microbes colonising the site, while the metabolic activities of these microorganisms later on modifies the environmental properties. These microorganisms when in equilibrium confer health benefit however any alteration in the flora allows the pathogenic bacteria to outgrow in numbers and cause oral disease. Such alteration could be due to various factors. The present review article focuses on the various aspects of oral microbial flora, their role in the body, dysbiosis and factors influencing along with the reestablishment of normal healthy microbiome. A search was made on pubmed and scopus using keywords and 25 relevant articles published during 2000 to 2018 along with their references were included in the study.With increasing knowledge of human microbiome, attempts are made to limit the alteration in oral ecosystem or re-establish the normal healthy flora as a part of prevention or treatment of diseases. This brings about change in approach which initially focused on elimination of microbes to maintaining their equilibrium.
Population Genetics and Forensic Efficiency of 30 InDel Markers in Four Chinese Ethnic Groups Residing in Sichuan
Authors: Wang Fei , He Guanglin , Wang Zheng , Wang Mengge , Liu Jing , Zou Xing , Wang Shouyu , Song Mengyuan , Ye Ziwei , Xie Mingkun , Hou Yiping 
Published: April 2020

Abstract
Sichuan Province is located at the transitional junction regions of the Qinghai-Tibet Plateau and the low-altitude plains. It also serves as the corridor of Sino-Tibetan-speaking population migration and expansion since neolithic expansion of Proto-Tibeto-Burman populations from Middle/Upper Yellow River during Majiayao period (3300–2000 BC). However, the population structure and the corresponding genetic diversity of forensic-related markers in this region remain unclear. Thus, we genotyped 30 insertion-deletion (InDel) markers in 444 samples from four ethnic groups (Han, Tibetan, Hui and Yi) from Sichuan Province using the Investigator® DIPplex kit to explore the characteristics of population genetics and forensic genetic focuses. All the loci were found to be in Hardy-Weinberg Equilibrium (HWE) after applying a Bonferroni correction and no pairwise loci showed prominent linkage disequilibrium. The combined matching probability (CMP) and the combined power of discrimination (CPD) are larger than 1.8089 × 10−11 and 0.99999999995, respectively. Principal component analysis, multi-dimensional scaling plots and Neighbour-Joining tree among 65 worldwide populations indicated that Sichuan Hui and Han are genetically close to Hmong-Mien and Tai-Kadai-speaking populations, and Sichuan Tibetan and Yi bear a strong genetic affinity with Tibeto-Burman-speaking populations. The model-based genetic structure further supports the genetic affinity between the studied populations and linguistically close populations. Key PointsForensic parameters of 30 insertion-deletions (InDels) in 444 individuals from four populations are reported, which showed abundant genetic affinity and diversity among populations and high value in personal identification.Genetic similarities existed between the studied populations and ethnically, linguistically close populations.Sichuan Hui and Han are genetically close to Hmong-Mien and Tai-Kadai-speaking populations.Sichuan Tibetan and Yi bear a strong genetic affinity with Tibeto-Burman-speaking populations.
Sound dissipation from plate-type resonators excited in non-conventional transversal modes in liquids
Authors: Pfusterschmied G , Weinmann C , Schneider M , Platz D , Shen Naijian , Sader J , Schmid U 
Published: April 2020

Abstract
Vibrational modes of higher order in micromachined resonators exhibit low damping in liquid environments, which facilitates accurate sensing even in highly viscous liquids. A steady increment in mode order, however, results in sound dissipation effects at a critical mode number n
crit, which drastically increases damping in the system. Basic understanding in the emerging of sound dissipation in micromachined resonators is therefore of utmost importance, when an application of higher mode orders is targeted. For that reason, we experimentally investigated in this paper the appearance of sound dissipation in higher order non-conventional vibrational modes in MEMS plate resonators in liquids. The results are compared to those of an analytical model and of finite element method analyses. Micromechanical piezoelectric resonators were fabricated and characterized in sample fluids with a dynamic viscosity μ
fluid ranging from 1 to 5 mPa s and density values ρ
ﬂuid ranging from 0.774 up to 0.835 kg l−1. Quality factors up to 333 are obtained for the eighth mode order in model solution with a dynamic viscosity of 1 mPa s. By monitoring the resonance and damping characteristics as a function of mode order, sound dissipation effects occur, observed by the detection of increased damping, starting at mode number n = 8, which is in good agreement to the predictions of an analytical model and to finite element method simulations. At the critical mode number n
crit, a reduction in quality factor up to 50% is measured. The results show a direct correlation of n
crit and the density of the fluid, which agrees to theory. The lowest value of 8 for n
crit is obtained in a sample liquid with the lowest density value of 0.774 kg l−1, followed by n
crit = 9 in a sample liquid with ρ
ﬂuid = 0.782 kg l−1 and n
crit = 10 in a sample liquid with ρ
ﬂuid = 0.835 kg l−1. These findings are of particular interest for sensing applications in low dense liquids, as sound dissipation effects emerge even at lower mode numbers.
Superoscillations for monochromatic standing waves
Authors: Berry M V 
Published: April 2020

Abstract
For complex scalar waves, a convenient measure of the local oscillations and (‘faster than Fourier’) superoscillations is the phase gradient vector: the local wavevector, or weak value of the momentum operator. This vanishes for standing waves, described by real functions ψ(
r
); for such waves, an alternative descriptor of oscillations is the local weak value of the square of one of the momentum components, i.e.

K

2

r

=
−

∂

2

ψ

r

/
∂

x

2

/
ψ

r

, here called the ‘weak curvature’. Superoscillations correspond to places where K
2 lies outside the interval 0 ⩽ K
2 ⩽ 1. Two illustrations are given. First is an explicit family of real waves in dimension d = 2, with arbitrarily strong superoscillations; this could represent Neumann standing modes in a strip waveguide. Second is an exact calculation of the probability distribution of K
2 for Gaussian random real waves in d dimensions. This decays as

1
/

K

2

2

, as a consequence of the codimension 1 of nodes (e.g. nodal lines for d = 2). The superoscillation probability varies from 0.3918 (d = 2) to 0.3041 (d = ∞).
Revealing roaming on the double Morse potential energy surface with Lagrangian descriptors
Authors: Montoya Francisco Gonzalez , Wiggins Stephen 
Published: April 2020

Abstract
In this paper, we analyse the phase space structure of the roaming dynamics in a 2 degree of freedom potential energy surface consisting of two identical planar Morse potentials separated by a distance. This potential energy surface was previously studied in Carpenter B K et al (2018 Regul. Chaotic Dyn.
23 60–79), and it has two potential wells surrounded by an unbounded flat region containing no critical points. We study the phase space mechanism for the transference between the wells using the method of Lagrangian descriptors.
A new two-step selective laser remelting of 316L stainless steel: process, density, surface roughness, mechanical properties, microstructure
Authors: Lu Pan , Cheng-Lin Zhang , Hai-Yi Liang , Liang Wang , Tong Liu 
Published: April 2020

Abstract
A new two-step selective laser remelting (SLR) process was proposed to fabricate 316L stainless steel. The density, surface roughness, and mechanical properties were investigated by a multifunctional density tester, surface roughness meter, and tensile testing machine. Compared with the single-melting selective laser melting (SLM) process, the relative density, surface roughness (Ra), ultimate tensile strength, yield strength, elastic modulus, and elongation reached 99.31%, 6.67 μm, 725 MPa, 643 MPa, 13.95 GPa, and 40.8%, respectively. In addition, the microstructure and fracture characteristics were studied by OM, SEM, and EDS. The results showed little unmelted powder and fewer defects (balling, spatter, and cracks). In addition, a closer and smoother connection between the welds and equiaxed cell were obtained by the SLR process.
Microscopic morphology, thermodynamic and mechanical properties of thermoplastic polyurethane fabricated by selective laser sintering
Authors: Pan Ruiqi , Yang Lei , Zheng Li , Hao Liang , Li Yan 
Published: April 2020

Abstract
Thermoplastic polyurethane (TPU) is one of the elastomeric polymers which has widespread applicability in various fields. Selective laser sintering (SLS) technology is gradually being used to manufacture actual end-use components and enables novel applications (footwear, healthcare mattresses, cable and wire) for TPU. This work aims to explore an optimum protocol (laser power, scanning speed and layer thickness) for SLS fabricated TPU components, and to evaluate the processability of TPU powder through systematically analyzing the morphological properties, structure, melting temperature, crystallization characteristics and tensile properties under different processing parameters. The optimum SLS processing parameters for TPU are laser speed of 3500 mm s−1, laser power of 25 W and layer thickness of 0.1 mm. The tensile strength and superlative toughness of SLS-fabricated TPU samples can reach up to 20.02 MPa and 26 631 J mm−3, respectively. The tensile strength of optimized SLS specimens (parameters: 20 W, 4500 mm s−1, 0.15 mm) has been increased by 87.1% compared to that of reference.
A long-chain based bromo and methyl substituted chalcone derivatives; experimental and theoretical approach on nonlinear optical single crystals
Authors: Parol Vinay , Upadhyaya V , Prabhu A N , Lokanath N K , Taher Md Abu , Naraharisetty Sri Ram G 
Published: April 2020

Abstract
In the present work, growth of single crystals of chalcone derivatives {4-[(1E)-3-(4-methylphenyl)-3-oxoprop-1-en-1-yl]phenyl 4-methylbenzene-1-sulfonate} (4M1PMS) and {4-[(1E)-3-(4-bromophenyl)-3-oxoprop-1-en-1-yl]phenyl4-methylbenzene-1-sulfonate} (4BPMS), at room temperature is reported. The spectroscopic techniques are used to identify the presence of functional groups in the materials. The single-crystal XRD and powder XRD analysis reveals that 4M1PMS belongs to non-centrosymmetric (

P

2

1

2

1

2

1

) and 4BPMS belongs to centrosymmetric

(
P

2

1

/
n
)

crystalline system. The molecular structures exhibit C–H…O and π...π intermolecular interactions. From UV/VIS/NIR spectroscopic studies, it is found that both samples have bathochromic shifts in linear absorbance (cut-off region) spectra. The broad emission region involved in several sharp emission peaks in blue region, exhibits a blue light emission property, as observed from photoluminescence study, in both the samples. The thermal stability of the materials were studied by TGA/DTA techniques and crystals were thermally stable until the melting point. In NLO study, 4M1PMS crystal has shown SHG efficiency 2.2 times that of KDP crystal. In addition, electronic contribution in hyperpolarizability (first order and second order) tensors of both the compounds were computed theoretically by M06-2X functional at DFT level. The open/closed aperture Z-scan technique were performed to evaluate third order nonlinear optical materials by measuring experimental parameters such as nonlinear absorption/refraction and calculate second-order hyperpolarizability with corresponding third-order nonlinear optical susceptibility

(

χ

3

)

of 4M1PMS and 4BPMS. The surface damage threshold studies of 4M1PMS and 4BPMS were performed by Q-switched Nd:YAG laser at 532 nm.