bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multi-isotopic and morphometric evidence for the migration of farmers leading up to the Inka conquest of the southern Andes
Authors: Barberena Ramiro , Menéndez Lumila , le Roux Petrus J. , Marsh Erik J. , Tessone Augusto , Novellino Paula , Lucero Gustavo , Luyt Julie , Sealy Judith , Cardillo Marcelo , Gasco Alejandra , Llano Carina , Frigolé Cecilia , Guevara Daniela , Da Peña Gabriela , Winocur Diego , Benítez Anahí , Cornejo Luis , Falabella Fernanda , Méndez César , Nuevo-Delaunay Amalia , Sanhueza Lorena , Sagredo Francisca Santana , Troncoso Andrés , Zárate Sol , Durán Víctor A. , Cortegoso Valeria 
Published: December 2020

AbstractWe present isotopic and morphometric evidence suggesting the migration of farmers in the southern Andes in the period AD 1270–1420, leading up to the Inka conquest occurring ~ AD 1400. This is based on the interdisciplinary study of human remains from archaeological cemeteries in the Andean Uspallata Valley (Argentina), located in the southern frontier of the Inka Empire. The studied samples span AD 800–1500, encompassing the highly dynamic Late Intermediate Period and culminating with the imperial expansion. Our research combines a macro-regional study of human paleomobility and migration based on a new strontium isoscape across the Andes that allows identifying locals and migrants, a geometric morphometric analysis of cranio-facial morphology suggesting separate ancestral lineages, and a paleodietary reconstruction based on stable isotopes showing that the migrants had diets exceptionally high in C4 plants and largely based on maize agriculture. Significantly, this migration influx occurred during a period of regional demographic increase and would have been part of a widespread period of change in settlement patterns and population movements that preceded the Inka expansion. These processes increased local social diversity and may have been subsequently utilized by the Inka to channel interaction with the local societies.
Three-dimensional imaging of mitochondrial cristae complexity using cryo-soft X-ray tomography
Authors: Polo Carla C. , Fonseca-Alaniz Miriam H. , Chen Jian-Hua , Ekman Axel , McDermott Gerry , Meneau Florian , Krieger José E. , Miyakawa Ayumi A. 
Published: December 2020

AbstractMitochondria are dynamic organelles that change morphology to adapt to cellular energetic demands under both physiological and stress conditions. Cardiomyopathies and neuronal disorders are associated with structure-related dysfunction in mitochondria, but three-dimensional characterizations of the organelles are still lacking. In this study, we combined high-resolution imaging and 3D electron density information provided by cryo-soft X-ray tomography to characterize mitochondria cristae morphology isolated from murine. Using the linear attenuation coefficient, the mitochondria were identified (0.247 ± 0.04 µm−1) presenting average dimensions of 0.90 ± 0.20 µm in length and 0.63 ± 0.12 µm in width. The internal mitochondria structure was successfully identified by reaching up the limit of spatial resolution of 35 nm. The internal mitochondrial membranes invagination (cristae) complexity was calculated by the mitochondrial complexity index (MCI) providing quantitative and morphological information of mitochondria larger than 0.90 mm in length. The segmentation to visualize the cristae invaginations into the mitochondrial matrix was possible in mitochondria with MCI ≥ 7. Altogether, we demonstrated that the MCI is a valuable quantitative morphological parameter to evaluate cristae modelling and can be applied to compare healthy and disease state associated to mitochondria morphology.
Impact of HLA class I allele-level mismatch on viral infection within 100 days after cord blood transplantation
Authors: Iemura Tomoki , Arai Yasuyuki , Kanda Junya , Kitawaki Toshio , Hishizawa Masakatsu , Kondo Tadakazu , Yamashita Kouhei , Takaori-Kondo Akifumi 
Published: December 2020

AbstractViral infection is more frequently reported in cord blood transplantation (CBT) than in transplantation of other stem cell sources, but its precise mechanism related to antiviral host defenses has not been elucidated yet. To evaluate the effect of human leukocyte antigen (HLA) class I allele-level incompatibility on viral infection in CBT, we conducted a single-center retrospective study. Total 94 patients were included, and viral infections were detected in 32 patients (34%) within 100 days after CBT. HLA-C mismatches in graft-versus-host direction showed a significantly higher incidence of viral infection (hazard ratio (HR), 3.67; p = 0.01), while mismatches in HLA-A, -B, or -DRB1 were not significant. Overall HLA class I mismatch was also a significant risk factor and the predictor of post-CBT viral infection (≥ 3 mismatches, HR 2.38, p = 0.02), probably due to the insufficient cytotoxic T cell recognition and dendritic cell priming. Patients with viral infection had significantly worse overall survival (52.7% vs. 72.1%; p = 0.02), and higher non-relapse mortality (29.3% vs. 9.8%; p = 0.01) at 5 years. Our findings suggest that appropriate graft selection as well as prophylaxis and early intervention for viral infection in such high-risk patients with ≥ 3 HLA class I allele-level mismatches, including HLA-C, may improve CBT outcomes.
Is supernova SN 2020faa an iPTF14hls look-alike?
Authors: Yang S. , Sollerman J. , Chen T.-W. , Kool E. C. , Lunnan R. , Schulze S. , Strotjohann N. , Horesh A. , Kasliwal M. , Kupfer T. , Mahabal A. A. , Masci F. J. , Nugent P. , Perley D. A. , Riddle R. , Rusholme B. , Sharma Y. 
Published: November 2020

Context. We present observations of ZTF20aatqesi (SN 2020faa). This Type II supernova (SN) displays a luminous light curve (LC) that started to rebrighten from an initial decline. We investigate this in relation to the famous SN iPTF14hls, which received a great deal of attention and multiple interpretations in the literature, but whose nature and source of energy still remain unknown.
Aims. We demonstrate the great similarity between SN 2020faa and iPTF14hls during the first 6 months, and use this comparison to forecast the evolution of SN 2020faa and to reflect on the less well observed early evolution of iPTF14hls.
Methods. We present and analyse our observational data, consisting mainly of optical LCs from the Zwicky Transient Facility in the gri bands and of a sequence of optical spectra. We construct colour curves and a bolometric lc, and we compare ejecta-velocity and black-body radius evolutions for the two supernovae (SNe) and for more typical Type II SNe.
Results. The LCs show a great similarity with those of iPTF14hls over the first 6 months in luminosity, timescale, and colour. In addition, the spectral evolution of SN 2020faa is that of a Type II SN, although it probes earlier epochs than those available for iPTF14hls.
Conclusions. The similar LC behaviour is suggestive of SN 2020faa being a new iPTF14hls. We present these observations now to advocate follow-up observations, since most of the more striking evolution of SN iPTF14hls came later, with LC undulations and a spectacular longevity. On the other hand, for SN 2020faa we have better constraints on the explosion epoch than we had for iPTF14hls, and we have been able to spectroscopically monitor it from earlier phases than was done for the more famous sibling.
Estimating ages and metallicities of M31 star clusters from LAMOST DR6
Authors: Wang Shoucheng , Chen Bingqiu , Ma Jun 
Published: November 2020

Context. Determining the metallicities and ages of M31 clusters is fundamental to the study of the formation and evolution of M31 itself. The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) has carried out a systematic spectroscopic campaign of clusters and candidates in M31.
Aims. We constructed a catalogue of 346 M31 clusters observed by LAMOST. By combining the information of the LAMOST spectra and the multi-band photometry, we developed a new algorithm to estimate the metallicities and ages of these clusters.
Methods. We distinguish young clusters from old using random forest classifiers based on a empirical training data set selected from the literature. Ages of young clusters are derived from the spectral energy distribution fits of their multi-band photometric measurements. Their metallicities are estimated by fitting their observed spectral principal components extracted from the LAMOST spectra with those from the young metal-rich single stellar population (SSP) models. For old clusters we built non-parameter random forest models between the spectral principal components and/or multi-band colours and the parameters of the clusters based on a training data set constructed from the SSP models. The ages and metallicities of the old clusters are then estimated by fitting their observed spectral principal components extracted from the LAMOST spectra and multi-band colours from the photometric measurements with the resultant random forest models.
Results. We derived parameters of 53 young and 293 old clusters in our catalogue. Our resultant parameters are in good agreement with those from the literature. The ages of ∼30 catalogued clusters and metallicities of ∼40 sources are derived for the first time.
Retroperitoneoscopic Pancreatic Necrosectomy: Taming the Relentless March of the Great Marauder
Authors: Rohatgi Yash , Joshi Abhijit 
Published: November 2020

AbstractWe hereby report a case of a 35-year-old male who presented to us with infected pancreatic necrosis, 4 weeks after an episode of acute alcoholic pancreatitis. Imaging investigations showed a predominantly left-sided pancreatic and peripancreatic infected collection. This case was managed successfully in a single sitting by retroperitoneoscopic intervention.
A Retrospective Analysis of the Effects of an Exclusively Human Milk Protein Diet on Neonatal Feeding Tolerance
Authors: Wickland Jessica , Wade Christine , Micetic Becky , Meredith Keith , Martin Gregory 
Published: November 2020

Objective This study was aimed to evaluate the effect of human milk protein fortifier (HMPF) versus bovine milk protein fortifier (BMPF) on feeding tolerance defined as the time to reach full feeds and necrotizing enterocolitis (NEC) in premature very low birth weight (VLBW) infants.
Study Design A retrospective review using the BabySteps Database included 493 infants born ≤33 weeks of gestational age and ≤1,250 g (g) birth weight. A total of 218 infants fed a human milk diet (HMD) with BMPF were compared with 275 infants fed an HMD with HMPF.
Results Full feeds were reached significantly sooner in the HMPF group (median: 14 vs. 16 days, p = 0.04). Weight at full feeds was significantly lower in the HMPF group (1,060 vs. 1110 g, p = 0.03).
Conclusion Using HMPF to provide an exclusively HMD allowed VLBW infants to achieve full feeds sooner, but did not affect rate of NEC compared with using a BMPF with an HMD.
Key Points
Midgut Volvulus Due to a True Jejunal Diverticula
Authors: Saad Melissa Kyriakos , Geahchan Amine , Ghandour Fatimah , Ghandour-Hajj Fatmeh , Malouf Hani , Hajj Imad El , Saikaly Elias 
Published: November 2020

AbstractJejunal diverticula is a rare condition quoted to affect between 0.5% and 7% of the individuals. This disease is usually clinically silent but becomes symptomatic when complications develop. Among its complications is small bowel volvulus that is a very rare entity.
Thrombosis of Both Umbilical Arteries of a Female Fetus in a Twin Gestation Causing Fetal Demise
Authors: Bhat Shubha P. , Paul Riturupa , Srinivas Teerthanath , Sonkusare Shipra , Priya Krishna 
Published: December 2020

AbstractThrombosis of both umbilical arteries is a rare condition, less common than venous thrombosis. They cause a lot of complications during and after delivery. Umbilical artery thrombosis is associated with both maternal predisposing factors and cord abnormalities and is commonly seen in male fetuses. Presenting symptoms are those of intrauterine growth retardation. Ultrasound abdomen and Doppler flow studies are useful in diagnosing this condition. The prognosis is very poor. Histopathological examination is helpful for confirmation. We present a case of both umbilical arteries thrombosis of a female fetus in a twin gestation causing fetal demise.
Laparoscopic Approaches to Splenic Flexure Mobilization Tailored According to Disease- and Patient-Related Factors
Authors: Saad Melissa Kyriakos , Saikaly Elias 
Published: November 2020

AbstractEarly in the 1990s, minimally invasive surgery manifested in laparoscopic surgery found its way to the field of colorectal surgery. Since then, a rising trend in utilizing laparoscopic approach in colorectal surgery, either for benign or malignant disease, is being noticed. In laparoscopic colorectal surgery, the most difficult and challenging step for colorectal surgeons is the mobilization of the splenic flexure. Laparoscopic mobilization of the splenic flexure is an area of debate, with no universally accepted gold standard approach. Multiple approaches have been described in the medical literature and no approach is considered the standard approach. Hence, colorectal surgeons should be familiar with all the different approaches and they should have the ability of utilizing a tailored splenic flexure mobilization approach modified according to patient- and disease-related factors. Herein, we review the different surgical approaches to laparoscopic splenic flexure mobilization that can be tailored to the surgeons needs according to patient- and disease-related factors.
Neutrino masses, cosmological inflation and dark matter in a variant U(1)B-L model with type II seesaw mechanism *
Authors: Rodrigues J. G. , Santos A. C. O. , Ferreira Jr J. G. , de S. Pires C. A. 
Published: December 2020

Abstract
In this study, we implemented the type II seesaw mechanism into the framework of the

gauge model. To achieve this, we added a scalar triplet,

, to the canonical particle content of the

gauge model. By imposing that the

gauge symmetry be spontaneously broken at TeV scale, we show that the type II seesaw mechanism is realized at an intermediate energy scale, more precisely, at approximately

GeV. To prevent heavy right-handed neutrinos from disturbing the mechanism, we evoke a

discrete symmetry. Interestingly, as a result, we have standard neutrinos with mass around eV scale and right-handed neutrinos with mass in TeV scale, with the lightest one fulfilling the condition of dark matter. We developed all of these in this study. In addition, we show that the neutral component of

may perform unproblematic non-minimal inflation with loss of unitarity.
New Geiger-Nuttall law for two-proton radioactivity *
Authors: Liu Hong-Ming , Zou You-Tian , Pan Xiao , Chen Jiu-Long , He Biao , Li Xiao-Hua 
Published: December 2020

Abstract
In the present work, a two-parameter empirical formula is proposed, based on the Geiger-Nuttall law, to study two-proton (

) radioactivity. Using this formula, the calculated

radioactivity half-lives are in good agreement with the experimental data as well as with calculated results obtained by Goncalves et al. [Phys. Lett. B
774, 14 (2017)] using the effective liquid drop model (ELDM), Sreeja et al. [Eur. Phys. J. A
55, 33 (2019)] using a four-parameter empirical formula, and Cui et al. [Phys. Rev. C
101: 014301 (2020)] using a generalized liquid drop model (GLDM). In addition, this two-parameter empirical formula is extended to predict the half-lives of 22 possible

radioactivity candidates with

radioactivity released energy

, obtained from the latest evaluated atomic mass table AME2016. The predicted results are highly consistent with those obtained using other theoretical models such as the ELDM, GLDM and four-parameter empirical formula.
Study of Physical and Chemical Characterization and Pathogenic Microbial Pollution in Euphrates River in AL-Nasiriya City during 2018-2019
Authors: Nasir Kadhum S. , Hussein Hiba S. , Hanan Zaman K. , Kadhim Kadhim A. 
Published: December 2020

Abstract
This study was conducted to assess the physical, chemical properties and pathological microbial contamination in the Euphrates River in Nasiriya city, southern Iraq, and three stations were chosen in the study area of 6 km for the period from the fall of 2018 until the summer of 2019. Samples were collected during this period. The first station was north of Nasiriya governorate. The second station is located in the center of the governorate. The third is located in the south of Al-Nasiriya Governorate, about 4 km from the second station. The study included measuring some physical, chemical and microbial properties of river water. It also included measuring the concentration of some physical analyzes including color, odor, temperature and turbidity. Chemical analysis included pH, BOD5, and COD. Pathogenic bacteria analyses included Salmonella enterica, E. coli pseudomonas aeroginosa, Streptococcus pyogenes, Staphylococcus aurous, and Klebseilla spp. AST in our study revealed high levels of resistance to ampicillin (100%), nalidixic acid (90%), sulfamethoxazole- trimethoprim (80% (Tetracycline and ciprofloxacin (55%) and Chloramphenicol (45%).
Modeling the hardening process of monolithic reinforced concrete structures in Elcut Pro software package
Authors: Korobkov S , Mikhailov D , Gnyrya A , Titov M 
Published: December 2020

Abstract
Modeling of heating a monolithic tape grillage using heating insulated wires in the ELCUT Pro 6.3 software and computing complex and the WinConcret add-on are discussed in the article. This type of concrete heating is used at a multi-storey residential complex “Alye Parusa” in Microdistrict “Severny”, a rural settlement of the Tomsk region near the river. The initial parameters were introduced for the object under construction in Elcut Pro software package with the WinConcret add-in. As a result of the calculation, an analysis of the temperature fields in the section of a monolithic tape grillage was carried out, as well as graphs of the temperature dependence on time and graphs of the strength dependence on the heating time. It was found that when concrete was heated with the help of insulated heating wires, the thermal energy was distributed more evenly over the entire cross section of the grillage, which led to an increase in the entire structure strength.
Climate Change and Eco-Anthropocentric Approach to Architectural and Urban Planning
Authors: Eichner M , Ivanova Z 
Published: December 2020

Abstract
Ahumane and environmentally friendly urban environment is akeypriority of the modern age. An eco-anthropocentric approach to design engineering is legislated by many European countries. Federal Building Code (BauGB, Germany) commits municipalities to analyze urban development plans and identify unintended hazardous environmental consequences for urban residents. This approach assumes special importance in the context of mounting climate changes. Europe’s design practicesareeco-anthropocentric; they take account of the climate change and behavioural patterns of urban residents. In this article, eco-anthropocentric climate-conscious architectural solutions, developed by M. Eichner, the co-author, are presented. He develops his architectural projects with account for local specificities, eco-friendly construction materials, and traditional models of dwellings. His projects are both social and ecological; they absorb the best civil engineering solutions; their impact on the biosphere and the global climate is also assessed. The findings of the self-examination, performed by the NRU MGSU students, majoring in architecture, are also contributed to the article. Students realize the importance of climate-conscious design, although they do not think there is a growing demand for projects of this kind in Russia; urban residents do not realize the importance of climate-conscious construction. The co-authors make a conclusion that both local and global patterns of influence, produced by buildings on the environment as a result of their consumption of materials, water and energy, vary from country to country, and so does the demand for climate-conscious architecture. However, given the climate changeacross the world, architectural and urban planning design will put emphasis on a combination of ecological and humane factors.
A performance assessment on Compressed Stabilized Earth Block (CSEB) using geo – polymeric binders
Authors: Sangeethavani B , Muthukannan M , Deepak R , Arun Pradeep A 
Published: December 2020

Abstract
The development of the country mainly depends on Rural Development. About 55% of rural peoples still live in earth building. According to the US Green Building Council, the building sector accounts for 39% of the global emission of CO2. If new technologies were not adopted means the emission could be doubled by the year 2050 according to United Nation Environment Program (UNEP). New technology is required to sustain the environment and earth materials. In India, One of the recently developing technology is Compressed Stabilized Earth Block (CSEB). This CSEB technology replaces the usage of conventional burnt clay bricks. In this Context, The earth materials are not widely used in CSEB because it includes the vital part of industrial wastes. The characteristics of CSEB with Granulated Blast Furnace Slag (GGBFS), Fly Ash of class-F and coir fiber are to be investigated. Nowadays, the controlling, management and disposal of waste materials are a difficult task. The Flyash-F is an industrial waste material that is obtained from a thermal power plant and it contains a low amount of CaO. GGBFS is also an industrial waste obtained from the quenching molten iron slag in steel industries. About 20-25% of dry volume soil is replaced by a combination of Flyash and GGBFS with the addition of a geopolymer solution. Both the waste materials bring the CSE-Block as eco-friendly to the environment and cost-effective. Besides, The CSEB exhibits high strength, low creep, very minimum water absorption and good erosion resistance. In this paper, we are experimentally investigating the compressive strength and water absorption nature of CSEB with varying ratios of binders and Geo-Polymeric solution.
A review on the emergence of single-chamber microbial fuel cell on wastewater treatment
Authors: Jinisha R , Jerlin Regin J , Maheswaran J 
Published: December 2020

Abstract
The principle of generating electrical energy using biomass forms the basis of Microbial Fuel Cells (MFCs). This new technology not only produces electricity but also cleans up the waste. Based on the number of chamber units, MFCs are mainly divided into single chamber (SCMFC) and double chamber (DCMFC). This paper reviews particularly about SCMFC. The fundamental components of SCMFC like anode and cathode and the various microbes used in the fuel cell are explained in this review. This paper details about the materials used for the synthesis of anode and cathode. Also, the applicability of SCMFC for the purification of synthetic and real wastewater is discussed.