cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
DOMESTIC VIOLENCE AND COVID-19 : REFERENCE WITH KACHCHH DISTRICT
Creators: name: Maheshwari Rekhaben Atmaram, Dr. Pradeep Prajapati
Publisher: name: Zenodo
Year: 2022
Subjects: Home, safety, Domestic Violence, Traditions, Norms, Beliefs, Ego, Thought, Tolerance, Education, Awareness, customs

description: Abstract:  It is said that if there is a safe place in the world, it is home. Where women can be safest, but are women really safe at home? No! Indeed, there are many homes today where women are not safe. Violence against women occurs from their homes. The safest place in the world today is not safe for women This study was in the context of domestic violence and COVID 19. For this, during lockdown, I tried to know the impacts of COVID 19. One of the many impacts of the lockdown was domestic violence. So I tried to explain violence against women. It was reported from Kachchh police station. The thoughts, traditions, norms, arrogance of the person are mainly responsible for domestic violence. Violence occurs only when violence is tolerated. Resist violence and confront that situation. Education can play an important role in coping with such a situation, as the medium of education can change human thinking. Educating women increases their confidence and also brings awareness. Education can change the mindset of both men and women. Which will work for the betterment of society.
How to reveal the exotic nature of the P_c(4450)
Creators: name: Guo, Feng-Kun
name: Meißner, Ulf-G.
name: Wang, Wei
name: Yang, Zhi
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The LHCb Collaboration announced two pentaquark-like structures in the $J/ψp$ invariant mass distribution. We show that the current information on the narrow structure at 4.45 GeV is compatible with kinematical effects of the rescattering from $χ_{c1} p$ to $J/ψp$: First, it is located exactly at the $χ_{c1} p$ threshold. Second, the mass of the four-star well-established $Λ(1890)$ is such that a leading Landau singularity from a triangle diagram can coincidentally appear at the $χ_{c1} p$ threshold, and third, there is a narrow structure at the $χ_{c1}\,p$ threshold but not at the $χ_{c0} p$ and $χ_{c2} p$ thresholds. In order to check whether that structure corresponds to a real exotic resonance, one has to measure the process $Λ_b^0\to K^-χ_{c1} p$. If the $P_c(4450)$ structure exists in the $χ_{c1} p$ invariant mass distribution as well, then the structure cannot be just a kinematical effect but is a real resonance, otherwise, one cannot conclude the $P_c(4450)$ to be another exotic hadron. In addition, it is also worthwhile to measure the decay $Υ(1S)\to J/ψp \bar p$: a narrow structure at 4.45 GeV but not at the $χ_{c0} p$ and $χ_{c2} p$ thresholds would exclude the possibility of a pure kinematical effect.
description: 9 pages, 4 figures. Version published in PRD as a Rapid Communication
Device-to-Device Communication Underlaying a Finite Cellular Network Region
Creators: name: Guo, Jing
name: Durrani, Salman
name: Zhou, Xiangyun
name: Yanikomeroglu, Halim
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Underlay in-band device-to-device (D2D) communication can improve the spectrum efficiency of cellular networks. However, the coexistence of D2D and cellular users causes inter-cell and intra-cell interference. The former can be effectively managed through inter-cell interference coordination and, therefore, is not considered in this work. Instead, we focus on the intra-cell interference and propose a D2D mode selection scheme to manage it inside a finite cellular network region. The potential D2D users are controlled by the base station (BS) to operate in D2D mode based on the average interference generated to the BS. Using stochastic geometry, we study the outage probability experienced at the BS and a D2D receiver, and spectrum reuse ratio, which quantifies the average fraction of successfully transmitting D2D users. The analysis shows that the outage probability at the D2D receiver varies for different locations. Additionally, without impairing the performance at the BS, if the path-loss exponent on the cellular link is slightly lower than that on the D2D link, the spectrum reuse ratio can have negligible decrease while the D2D users' average number of successful transmissions increases with increasing D2D node density. This indicates that an increasing level of D2D communication can be beneficial in future networks..
description: accepted by IEEE Transactions on Wireless Communications
Canada-US-Mexico Trade Relationship.docx
Creators: name: OLUSILE, ADEGBENGA
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 380302
subject: Macroeconomic theory

description: This paper lays out the history of trade relationships between these three countries in North America which includes the time before NAFTA, its renegotiation which culminated in the USMCA, the different views by the proponents and opponents of the different trade agreements, and the impact these agreements had on the nations. It also introduces the history of the relationship between Canada, the US, and Mexico, the ratification of NAFTA, and its implications especially with changing political environment. We also discuss what differentiates between NAFTA and the Trans-Pacific Partnership (TPP), signed between Canada and ten other countries excluding the US, and how this impacts the trade relationships between the US and those countries.
Temporal Scales of Electron Precipitation Driven by Whistler-Mode Waves
Creators: name: Zhang, Xiao-Jia
name: Angelopoulos, Vassilis
name: Artemyev, Anton
name: Mourenas, Didier
name: Agapitov, Oleksiy
name: Tsai, Ethan
name: Wilkins, Colin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Electron resonant scattering by whistler-mode waves is one of the most important mechanisms responsible for electron precipitation to the Earth's atmosphere. We investigate temporal and spatial scales of such precipitation with measurements from the two low-altitude ELFIN CubeSats. We compare the variations in energetic electron precipitation at the same L-shells but on successive data collection orbit tracks by the two ELFIN satellites. Variations seen at the smallest inter-satellite separations are likely associated with whistler-mode chorus elements or with the scale of chorus wave packets (0.1 - 1 s in time and 100 km in space at the equator). Variations between precipitation L-shell profiles at intermediate inter-satellite separations are likely associated with whistler-mode wave power modulations by ultra-low frequency (ULF) waves, i.e., with the wave source region (from a few to tens of seconds to a few minutes in time and 1000km in space at the equator). During these two types of variations, consecutive crossings are associated with precipitation L-shell profiles very similar to each other. Therefore the spatial and temporal variations at those scales do not change the net electron loss from the outer radiation belt. Variations at the largest range of inter-satellite separations, several minutes to more than 10 min, are likely associated with mesoscale equatorial plasma structures that are affected by convection (at minutes to tens of minutes temporal variations and [1000,10000]km spatial scales). The latter type of variations results in appreciable changes in the precipitation L-shell profiles and can significantly modify the net electron losses during successive tracks.
Weak Gibbs measures as Gibbs measures for asymptotically additive sequences
Creators: name: Iommi, Godofredo
name: Yayama, Yuki
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: In this note we prove that every weak Gibbs measure for an asymptotically additive sequences is a Gibbs measure for another asymptotically additive sequence. In particular, a weak Gibbs measure for a continuous potential is a Gibbs measure for an asymptotically additive sequence. This allows, for example, to apply recent results on dimension theory of asymptotically additive sequences to study multifractal analysis for weak Gibbs measure for continuous potentials.
Mutation of Growth Arrest Specific 8 Reveals a Role in Motile Cilia Function and Human Disease
Creators: name: Lewis, Wesley R.
name: Berbari, Nicolas F.
name: Malarkey, Erik B.
name: Bower, Raqual
name: Saunier, Sophie
name: Porath, Jonathan D.
name: Rowe, Steven M.
name: Drummond, Iain A.
name: Porter, Mary E.
name: Antignac, Corinne
name: Knowles, Michael R.
name: Yoder, Bradley K.
name: Parant, John M.
name: Challa, Anil K.
name: Hildebrandt, Friedhelm
name: Leigh, Margaret W.
name: Pasek, Raymond C.
name: Zariwala, Maimoona A.
name: Kesterson, Robert A.
name: Birket, Susan E.
name: Tritschler, Douglas
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Ciliopathies are genetic disorders arising from dysfunction of microtubule-based cellular appendages called cilia. Different cilia types possess distinct stereotypic microtubule doublet arrangements with non-motile or ‘primary’ cilia having a 9+0 and motile cilia have a 9+2 array of microtubule doublets. Primary cilia are critical sensory and signaling centers needed for normal mammalian development. Defects in their structure/function result in a spectrum of clinical and developmental pathologies including abnormal neural tube and limb patterning. Altered patterning phenotypes in the limb and neural tube are due to perturbations in the hedgehog (Hh) signaling pathway. Motile cilia are important in fluid movement and defects in motility result in chronic respiratory infections, altered left-right asymmetry, and infertility. These features are the hallmarks of Primary Ciliary Dyskinesia (PCD, OMIM 244400). While mutations in several genes are associated with PCD in patients and animal models, the genetic lesion in many cases is unknown. We assessed the in vivo functions of Growth Arrest Specific 8 (GAS8). GAS8 shares strong sequence similarity with the Chlamydomonas Nexin-Dynein Regulatory Complex (NDRC) protein 4 (DRC4) where it is needed for proper flagella motility. In mammalian cells, the GAS8 protein localizes not only to the microtubule axoneme of motile cilia, but also to the base of non-motile cilia. Gas8 was recently implicated in the Hh signaling pathway as a regulator of Smoothened trafficking into the cilium. Here, we generate the first mouse with a Gas8 mutation and show that it causes severe PCD phenotypes; however, there were no overt Hh pathway phenotypes. In addition, we identified two human patients with missense variants in Gas8. Rescue experiments in Chlamydomonas revealed a subtle defect in swim velocity compared to controls. Further experiments using CRISPR/Cas9 homology driven repair (HDR) to generate one of these human missense variants in mice demonstrated that this allele is likely pathogenic.
A Component of the Smith High Velocity Cloud Now Crossing the Galactic Plane
Creators: name: Lockman, Felix J.
name: Benjamin, Robert A.
name: Pichette, Nicolas
name: Thibodeau, Christopher
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have identified a new structure in the Milky Way: a leading component of the Smith high velocity cloud that is now crossing the Galactic plane near longitude 25 degrees. Using new 21cm HI data from the Green Bank Telescope (GBT) we measured the properties of several dozen clouds that are part of this structure. Their kinematics is consistent with that of the Smith Cloud with a VLSR exceeding that permitted by circular rotation in their direction. Most of the clouds in the Leading Component show evidence that they are interacting with disk gas allowing the location of the interaction to be estimated. The Leading Component crosses the Galactic plane at a distance from the Sun of 9.5 kpc, about 4.5 kpc from the Galactic Center. Its HI mass may be as high as 10^6 Solar masses, comparable to the mass of the neutral component of the Smith Cloud, but only a fraction of this is contained in clouds that are resolved in the GBT data. Like the Smith Cloud, the Leading Component appears to be adding mass and angular momentum to the ISM in the inner Galaxy. We suggest that the Smith Cloud is not an isolated object, but rather part of a structure that stretches more than 40 degrees (about 7 kpc) across the sky, in two pieces separated by a gap of about 1 kpc.
description: Accepted for publication in the Astrophysical Journal
संगीत का दार्शनिक स्वरूप
Creators: name: डॉ० अनुपमा सक्सेना
Publisher: name: Zenodo
Year: 2022
Subjects: संगीत, दर्शन, योग, आध्यात्म, नाद, मनोविज्ञान, भावाभिव्यक्ति ।

description: सारांश भारतीय संगीत मानव जीवन की शैली में रचा बसा प्राण है । यह कला भारतीय जीवन व दर्शन का मुख्य बिंदु रही है । संगीत आत्मिक शांति प्रदान करने की कला है। भारतीय दर्शन शास्त्र एवं ग्रंथों में मनुष्य के भावों अथवा मनस का विस्तृत वर्णन किया गया है। मानव के समस्त व्यवहार व बदलाव को मन की विभिन्न अवस्थाओं से जोड़ा गया है । भारतीय संगीत में भाव और स्वर के मिश्रण से ही दर्शन का प्रस्फुटन माना गया है। संगीत भावाभिव्यक्ति का सशक्त माध्यम है। जिसका अध्यात्म एवं दर्शन से गहरा संबंध है। संगीत का संबंध मानव जीवन के लौकिक तथा आध्यात्मिक दोनों पक्षों से रहा है। यह जनमन रंजन एवं मोक्ष प्राप्ति का अनुकरणीय साधन माना गया है।
Determining the Range of an Artificial Satellite Using its Observed Trigonometric Parallax
Creators: name: Earl, Michael A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Space Physics (physics.space-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Observing artificial satellites is a relatively new and unique branch of astronomy that is very interesting and dynamic. One specific aspect of observing these objects is that although they appear amongst the celestial background, as deep-sky objects do, their apparent locations amongst this background depend on where you are standing on Earth at a given time. This effect is known as parallax. When a satellite is observed at a specific time from a specific location, the satellite's equatorial coordinates can be determined using astrometric means. Its range from the observer, however, is still unknown unless the observer knows the satellite's precise orbit elements or has easy access to a radar station. However, when two or more observers, separated by some distance, observe the same satellite at the same time, their observations can be used to determine the range of the satellite using the satellite's observed trigonometric parallax.
description: 11 pages, 8 figures, Molniya satellites, Journal of the Royal Astronomical Society of Canada (JRASC) - April 2005
Electronic transport in copper-graphene composites
Creators: name: Subedi, K. N.
name: Nepal, K.
name: Ugwumadu, C.
name: Kappagantula, K.
name: Drabold, D. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the electronic transport properties of copper-graphene composites using a density-functional framework. Conduction in composites by varying the interface distance of a copper/graphene/copper (Cu/G/Cu) interface models was studied. The electronic density of states reveals increasing contributions from both copper and carbon atoms near the Fermi level with decreasing Cu-G interfacial distance. Electronic conductivity of the models computed using the Kubo-Greenwood formula showed the conductivity increases with decreasing Cu-G distance. We also find that the conductivity saturates below a threshold Cu-G distance. By computing the space-projected conductivity of the Cu/G/Cu models, we show that the graphene forms a bridge to the electronic conduction at small copper-graphene distances, thereby enhancing the conductivity.
—f"k es jklk;fud moZjdksa ds mi;ksx dh ço`fÙk ,oa ykxr dk v/;;u
Creators: name: FtrsUæ Dqekj1 M' Fodkl ç/Kku2
Publisher: name: Zenodo
Year: 2022
Subjects: jklk;fud moZjd] —f"k ykxr

description: lkjka'k  —f"k es jklk;fud moZjdksa dk mi;ksx mRiknu c<+kus okys ,d lk/ku ds :i es fd;k tkrk gS A jklk;fud moZjdksa es ukbVªkstu ;qä] Q‚LQsV ;qä ,oa iksVk'k ;qä vkfn moZjdksa dks 'kkfey fd;k tkrk gS ftldk mi;ksx djus ls —f"k mRiknu gh çHkkfor ugh gqvk cfYd —f"k dh ykxr] Hkwfe dh moZjk'kfä ,oa i;kZoj.k Hkh çHkkfor gqvk gS A vkt dh lcls c<+h leL;k jklk;fud moZjdksa dk vlarqfyr vuqikr ls mi;ksx es yk;k tkuk gS A çLrqr ys[k es o.kZukRed fof/k ds vk/kkj ij çkFkfed ,oa }krh;d leadksa dk fo'ys"k.k fd;k x;k gSA ftles jklk;fud moZjdksa ds mi;ksx] mRiknu ,oa çHkko dk v/;;u fd;k x;k gS A
Farnesoid X receptor prevents neutrophil extracellular traps via reduced sphingosine-1-phosphate in chronic kidney disease
Creators: name: Jones, Bryce
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310105
subject: Cellular interactions (incl. adhesion, matrix, cell wall)
classificationCode: 310110
subject: Receptors and membrane biology
classificationCode: 320407
subject: Innate immunity
classificationCode: 320504
subject: Medical biochemistry - lipids
classificationCode: 320214
subject: Nephrology and urology
classificationCode: 320505
subject: Medical biochemistry - nucleic acids

description: This is the Supplemental Material associated with the publication Farnesoid X receptor prevents neutrophil extracellular traps via reduced sphingosine-1-phosphate in chronic kidney disease.
iafMrh lkkfgR; vkf.k lektthou % ,d fpfdRld vH;kl
Creators: name: Gajanan  D. Jangamwar
Publisher: name: Zenodo
Year: 2022
Subjects: iafMr] lekt] thou] izokg] vk[;ku] laLd`rh] jl]

description: lkjka’k %& iafMrh lkfgR; gs f’kodkfyu vkf.k is’kosdkfyu Eg.kts lrjkO;k vkf.k vBjkO;k ‘krdkrp izkeq[;kus cgjys- vk[;ku dforsyk egnkblk rs eksjksiar v’kh ikp ‘krdkaph ijaijk vlyh rjh R;k vk[;ku dforsus izR;{kkr iafMrh oG.k ?ksrys rs lrjkO;k vkf.k vBjkO;k ‘krdkrp- eqDrs’oj rs eksjksiar vlk gk iafzMrh dforspk egRokpk dky[kaM vkgs- ;k dky[kaMkrhy lektthoukps oSf’k”Vîks 1½ fLFkrh’khy o iq:”kiz/kku laLd`rh 2½ xjtk o vFkksZRiknukph lk/kus e;kZfnr 3½ lek/kkuh o larq”V lekt 4½ :<hfiz; o /keZfu”B O;Drh 5½ euksjatukph e;kZfnr lk/kus o dhrZu o ijaijspk ixMk- iafMrh dfork vkiY;k HkksorkyP;k lektk’kh xjt Eg.kwup tUekyk vkyh- ;k dforsus ikSjkf.kd dFkk] O;Drhaph jlHkjhr pfj=s d:u mRre tu:phlaokn lk/kyk Eg.kwu izkIr ifjfLFkrh’kh ;kiafMrh lkfgR;kph mRre lkaxM ?kkryh tkÅu toGhdrk fuekZ.k >kyh- iafMrh lkfgR;k’kh lektkps nwjRo dkgh izek.kr tk.kors ;kaps dkj.k laLdrfu”Vk vkf.k /keZfu”Bk gks;- cgqtu lekt ;k dkGkiklwu nwjp jkfgyk gs [kjspa- R;kph dkj.ks Eg.kts gh jpuk lektkrhy mPpHkzw oxkZyk :psy v’kh vfHktkr oG.kkph vfHk:fplaiUu gksrh- rh laLd`r tk.kdkjklkBhp gksrh- Eg.kwup gh laLd`rizpqjrk o fof’k”V mPpHkzw oxkZlkBh >kysyh iafMrh dkO;kph fufeZrh lektkiklwu nwjkok fuekZ.k dj.;kl dkj.khHkwr Bjyh- lkekU; ek.kwl ;k dforsr lkekoyk xsyk ukgh- e/;;qxhu ejkBh lkfgR;kps LFkwy ekukus egkuqHkko lkfgR;] lar lkfgR; vkf.k ‘kkfgjh lkfgR; vls izew[k izokg ekuys tkrkr- ejkBh lkfgR;krhy dkgh i|osps vkiY;k v/;;ukr vkysys vlrhyp- R;kr eqDrs’oj] okeu] j?kqukFk] eksjksiar gh iafMr dohaph ukos vkiY;kyk vksG[khps >kys vkgsr- ;k iafMr dohauh laLd`r Hkk”kk ipowu R;krhy laLd`rpk okjlk vkf.k oG.k ejkBh lkfgR;kr vk.k.;kpk iz;Ru vkiiY;k dky[kaMkr dsysyk vkgs- R;kaP;k ;k iz;Rukrwup ,dk osxG;k v’kk iafMrh lkfgR;kP;k izokgkpk mxe >kyk- larlkfgR;kps tulkekU;kaph mRre idM ?ksryh- R;k ekukus iafMrh dkO; osxG;kp ikrGhoj jkfgys- iafMrh dkO;kpk gk izokg vyx dk\ gh iafMrh jpuk ,o<h Lora«; osxGh dk jkfgys] vlk iz’u mifLFkr gksrks- ojoj ikgrk vkiY;kyk vls okVrs dh] ;k lxG;kp iafMrh dohauh feGwu Lor%yk ,d osxGk oxZ vkf.k dks”k fuekZ.k dsYkk- ;k dks”kkr R;kauh Lor%yk xqjQVwu ?ksrys- R;krp rs vf/kdkf/ks xqarr xsys] vMdys- lektkrhy laLd`r tk.k.kÚ;k laiUu fLFkrhr thou tx.kkÚ;k lq[koLrw oxkZlkBhp iafMrh dkO; :ath ?kky.;kph izo`Rrh ] ;k ,dk vFkkZus lekt foUeq[krk ;k lkfgR; izokgkr gksrh- R;kr vkiys Lor%ps vfLrRo fVdowu Bso.;kpk iz;Ru iafMrkauh dsysyk fnlrks-
Flares detected in ALMA single-dish images of the Sun
Creators: name: Skokić, I.
name: Benz, A. O.
name: Brajša, R.
name: Sudar, D.
name: Matković, F.
name: Bárta, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The (sub)millimeter radiation of solar flares is poorly understood. Without spatial resolution, it cannot be compared easily to flare emissions in other wavelengths. The Atacama Large Millimeter-submillimeter Array (ALMA) offers sufficient resolution for the first time. However, used as an interferometer, its field of view is smaller than an active region and ALMA cannot observe on demand when a flare occurs. We use readily available large scale single-dish ALMA observations of solar millimeter flares and compare them to well-known features observed in other wavelengths. The properties of these other flare emissions, correlating in space and time, may then be used to interpret the millimeter brightenings and vice versa. The aim is to obtain reliable associations, limited by the time and space resolution of single-dish observations. We collected ALMA observations at 3 mm and 1 mm and searched for millimeter brightenings during times given in a flare catalog. We found five events with 9 or more images that can be used for comparison in time and space. The millimeter brightenings are associated with a variety of flare features in cool (H$α$, 30.4 nm), intermediate (17.1 nm), and hot (9.4 nm) lines. In several cases, the millimeter brightening peaked at the footpoint of a hot flare loop. In other cases the peak coincided with the top or footpoint of an active Hα filament. We found correlations also with post-flare loops and tops of a hot loop, and in some cases to no features at all. The wide field of view provided by the single-dish observations allowed for completely overviewing the flare activity in millimeter waves for the first time. The associated phenomena often changed during the flare in type and location, and may explain the sometimes bewildering behavior of millimeter flare emissions observed previously without spatial resolution.
description: 13 pages, 10 figures, accepted in Astronomy and Astrophysics
Rotational Dynamics of Organic Cations in CH3NH3PbI3 Perovskite
Creators: name: Chen, T.
name: Foley, B. J.
name: Ipek, B.
name: Tyagi, M.
name: Copley, J. R. D.
name: Brown, C. M.
name: Choi, J. J.
name: Lee, S. -H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Methylammonium lead iodide (CH3NH3PbI3) based solar cells have shown impressive power conversion efficiencies of above 20%. However, the microscopic mechanism of the high photovoltaic performance is yet to be fully understood. Particularly, the dynamics of CH3NH3+ cations and their impact on relevant processes such as charge recombination and exciton dissociation are still poorly understood. Here, using elastic and quasi-elastic neutron scattering techniques and group theoretical analysis, we studied rotational modes of the CH3NH3+ cation in CH3NH3PbI3. Our results show that, in the cubic (T > 327K) and tetragonal (165K < T < 327K) phases, the CH3NH3+ ions exhibit four-fold rotational symmetry of the C-N axis (C4) along with three-fold rotation around the C-N axis (C3), while in orthorhombic phase (T < 165K) only C3 rotation is present. Around room temperature, the characteristic relaxation times for the C4 rotation is found to be ps while for the C3 rotation ps. The -dependent rotational relaxation times were fitted with Arrhenius equations to obtain activation energies. Our data show a close correlation between the C4 rotational mode and the temperature dependent dielectric permittivity. Our findings on the rotational dynamics of CH3NH3+ and the associated dipole have important implications on understanding the low exciton binding energy and slow charge recombination rate in CH3NH3PbI3 which are directly relevant for the high solar cell performance.
QED $mα^7$ effects for triplet states of helium-like ions
Creators: name: Yerokhin, Vladimir A.
name: Patkóš, Vojtěch
name: Pachucki, Krzysztof
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We perform ab initio calculations of the QED effects of order $mα^7$ for the $2^3S$ and $2^3P$ states of He-like ions. The computed effects are combined with previously calculated energies from [V. A. Yerokhin and K. Pachucki, Phys. Rev. A 81, 022507 (2010)], thus improving the theoretical accuracy by an order of magnitude. The obtained theoretical values for the $2^3S$-$2^3P_{0,2}$ transition energies are in good agreement with available experimental results and with previous calculations performed to all orders in the nuclear binding strength parameter $Zα$. For the ionization energies, however, we find some inconsistency between the $Zα$-expansion and all-order calculations, which might be related to a similar discrepancy between the theoretical and experimental results for the ionization energies of helium [V. Patkóš et al., Phys. Rev. A 103, 042809 (2021)].
Fermi-Bose cubic couplings in light-cone field theories
Creators: name: Akshay, Y. S.
name: Ananth, Sudarshan
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive light-cone cubic interaction vertices involving fermions and bosons of arbitrary spin by demanding closure of the Poincaré algebra. We derive the three-point scattering amplitude corresponding to these interaction vertices and find that they possess interesting factorization properties, identical to the case of three boson scattering.
description: 10 pages
Phenomenology of Strong Interactions -- Towards an Effective Theory for Low Energy QCD
Creators: name: Issifu, Adamu
name: Brito, Francisco A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we develop models applicable to phenomenological particle physics by using the string analogy of particles. These theories can be used to investigate the phenomenology of confinement, deconfinement, chiral condensate, QGP phase transitions, and even the evolution of the early universe. Other confining properties such as scalar glueball mass, gluon mass, glueball-meson mixing states, QCD vacuum, and color superconductivity can also be investigated in these model frameworks. We use one of the models to describe the phenomenon of color confinement among glueballs at the end of the paper. The models are built based on the Dirac-Born-Infeld (DBI) action modified for opened strings with their endpoints on a D$p$-brane or brane-anti-brane at a tachyonic vacuum.
description: 24 pages and 7 figures
Orange/Red Fluorescence of Active Caries by Retrospective Quantitative Light-Induced Fluorescence Image Analysis
Creators: name: Eckert, George J.
name: Gomez, Grace Felix
name: Zandona, Andrea Ferreira
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: This retrospective clinical study determined the association of caries activity and orange/red fluorescence on QLF images of surfaces that progressed to cavitation as determined by clinical visual examination. A random sample of QLF images from 565 children (5-13years) previously enrolled in a longitudinal study was selected. Buccal, lingual and occlusal surfaces’ images obtained after professional brushing at baseline and every 4 months over a 4-year period were analyzed for Red Fluorescence (RF). Surfaces that progressed (N=224) to cavitation according to International Caries Detection and Assessment System (ICDAS 0/1/2/3/4 to 5/6/filling) and surfaces that did not progress (N=486) were included. QA2 image analysis software outputs the percentage increase of the red/green components as ΔR and Area of ΔR (Area△R) at different thresholds. Mixed-model ANOVA was used to compare progressive and non-progressive surfaces to account for correlations of RF (ΔR and AreaΔR) between surfaces within a subject. The first analysis used the first observation for each surface or the first available visit if the surface was unerupted (baseline), while the second analysis used the last observation prior to cavitation for surfaces that progressed and last observation for surfaces that did not progress (final). There was a significant (p<0.05) association between RF and progression to cavitation at thresholds ΔR0, ΔR10, ΔR20, ΔR60, ΔR70, ΔR80, ΔR90 and ΔRMax at baseline and for ΔR0 and ΔR10 at final observation. Quantification of orange/red fluorescence may help to identify lesions that progress to cavitation. Future studies identifying microbiological factors causing orange/red fluorescence and its caries activity are indicated.
Weak amenability and simply connected Lie groups
Creators: name: Knudby, Søren
Publisher: name: arXiv
Year: 2015
Subjects: subject: Group Theory (math.GR)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: Following an approach of Ozawa, we show that several semidirect products are not weakly amenable. As a consequence, we are able to characterize the simply connected Lie groups that are weakly amenable.
description: 9 pages. Comments welcome
Study of tracking efficiency and its systematic uncertainty from $J/ψ\to p \overline{p} π^+ π^-$ at BESIII
Creators: name: Yuan, Wenlong
name: Ai, Xiaocong
name: Ji, Xiaobin
name: Chen, Shenjian
name: Zhang, Yao
name: Wu, Linghui
name: Wang, Liangliang
name: Yuan, Ye
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Based on $J/ψ$ events collected with the BESIII detector, with corresponding Monte Carlo samples, the tracking efficiency and its systematic uncertainty are studied using a control sample of $J/ψ\to p \overline p π^+ π^-$. Validation methods and different factors influencing the tracking efficiency are presented in detail. The tracking efficiency and its systematic uncertainty for protons and pions with the transverse momentum and polar angle dependence are also discussed.
description: 6 pages, 6 figures, accepted by Chinese Physics C
Proton pump inhibitor-responsive oesophageal eosinophilia: an entity challenging current diagnostic criteria for eosinophilic oesophagitis
Creators: name: Dellon, Evan S.
name: Cheng, Edaire
name: Lucendo, Alfredo J.
name: Schoepfer, Alain
name: Gupta, Sandeep K.
name: Spechler, Stuart J.
name: Hirano, Ikuo
name: Molina-Infante, Javier
name: Furuta, Glenn T.
name: Wen, Ting
name: Katzka, David A.
name: Bredenoord, Albert J.
name: Straumann, Alex
name: Rothenberg, Marc E.
name: Moawad, Fouad J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Consensus diagnostic recommendations to distinguish gastro-oesophageal reflux disease (GORD) from eosinophilic oesophagitis (EoE) by response to a trial of proton pump inhibitors (PPI) unexpectedly uncovered an entity called “PPI-responsive oesophageal eosinophilia” (PPI-REE). PPI-REE refers to patients with clinical and histologic features of EoE that remit with PPI treatment. Recent and evolving evidence, mostly from adults, shows that PPI-REE and EoE patients at baseline are clinically, endoscopically and histologically indistinguishable, and have significant overlap in terms of features of Th2 immune-mediated inflammation and gene expression. Furthermore, PPI therapy restores oesophageal mucosal integrity, reduces Th2 inflammation and reverses the abnormal gene expression signature in PPI-REE patients, similar to the effects of topical steroids in EoE patients. Additionally, recent series have reported that EoE patients responsive to diet/topical steroids may also achieve remission on PPI therapy. This mounting evidence supports the concept that PPI-REE represents a continuum of the same immunologic mechanisms that underlie EoE. Accordingly, it seems counterintuitive to differentiate PPI-REE from EoE based on a differential response to PPI therapy when their phenotypic, molecular, mechanistic, and therapeutic features cannot be reliably distinguished. For patients with symptoms and histologic features of EoE, it is reasonable to consider PPI therapy not as a diagnostic test, but as a therapeutic agent. Due to its safety profile, ease of administration and high response rates (up to 50%), PPI can be considered a first-line treatment, before diet and topical steroids. The reasons why some EoE patients respond to PPI, while others do not, remain to be elucidated.
L=hHkz`.k gR;syk izfrca/k dj.;kdfjrk jkcfo.;kr ;s.kkÚ;k 'kkldh; ;kstukaps v/;;u
Creators: name: Lafxrk Xaxkjke EsJke 1  MkW- Yrk Ck- Fgols2
Publisher: name: Zenodo
Year: 2022

description: xks”kokjk % L=hHkzw.k gR;k gk fo”k; vfr’k; xafHkj vlwu ;keqGs L=h;kaP;k vfLrRokyk /kksdk fuekZ.k >kyk vkgs- v’kk ;k L=h;kaps izk.kgj.k dj.kkÚ;k leL;sph rhozrk deh dj.;kdfjrk fdaok gh leL;k leqG u”V dj.;kdfjrk Hkkjr ljdkjus eqyhaP;k dY;k.kkdfjrk dkgh ‘kkldh; ;kstuk dk;kZfUor dsY;k- R;ke/;s] lqdU;k] le`/nh ;kstuk] ek>h dU;k HkkX;Jh] csVh cpkvks] csVh i<kvks] egkjk”Vª jkT;kph lqdU;k ;kstuk] lcyk ;kstuk] fd’kksjh ‘kDrh ;kstuk] /kuy{eh ;kstuk] ckfydk le`/nh ;kstuk] ykMyh ;kstuk] ckylaxksiu ;kstuk] ,dkfRed ckyfodkl ;kstuk] iks”k.k dk;ZØe] bafnjk xka/kh ekr`Ro lg;ksx ;kstuk] mMkua ;kstuk ;k lkj[;k ;kstuk lq# d#u L=hiq#”kkrhy HksnHkko nwj dj.;kpk iz;Ru dsyk vkgs- L=hiq#”k lekurk lektkr izLFkkfir dj.ks] fyax xq.kksRrjkr ok< dj.ks] rlsp fL=;kaps lektkrhy vfLrRo fVdfo.ks gs ;k ;kstusekxhy izeq[k gsrw vkgsr-
Quantitative Analysis of Dynamic Protein Interactions during Transcription Reveals a Role for Casein Kinase II in Polymerase-associated Factor (PAF) Complex Phosphorylation and Regulation of Histone H2B Monoubiquitylation
Creators: name: Bedard, Lynn Glowczewski
name: Hunter, Gerald O.
name: Dronamraju, Raghuvar
name: Strahl, Brian D.
name: Axley, Elizabeth DeVlieger
name: Mosley, Amber L.
name: Kerschner, Jenny L.
name: Boyd, Asha K.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Using affinity purification MS approaches, we have identified a novel role for casein kinase II (CKII) in the modification of the polymerase associated factor complex (PAF-C). Our data indicate that the facilitates chromatin transcription complex (FACT) interacts with CKII and may facilitate PAF complex phosphorylation. Posttranslational modification analysis of affinity-isolated PAF-C shows extensive CKII phosphorylation of all five subunits of PAF-C, although CKII subunits were not detected as interacting partners. Consistent with this, recombinant CKII or FACT-associated CKII isolated from cells can phosphorylate PAF-C in vitro, whereas no intrinsic kinase activity was detected in PAF-C samples. Significantly, PAF-C purifications combined with stable isotope labeling in cells (SILAC) quantitation for PAF-C phosphorylation from wild-type and CKII temperature-sensitive strains (cka1Δ cka2–8) showed that PAF-C phosphorylation at consensus CKII sites is significantly reduced in cka1Δ cka2–8 strains. Consistent with a role of CKII in FACT and PAF-C function, we show that decreased CKII function in vivo results in decreased levels of histone H2B lysine 123 monoubiquitylation, a modification dependent on FACT and PAF-C. Taken together, our results define a coordinated role of CKII and FACT in the regulation of RNA polymerase II transcription through chromatin via phosphorylation of PAF-C.
Sasakian quiver gauge theories and instantons on cones over lens 5-spaces
Creators: name: Lechtenfeld, Olaf
name: Popov, Alexander D.
name: Sperling, Marcus
name: Szabo, Richard J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider SU(3)-equivariant dimensional reduction of Yang-Mills theory over certain cyclic orbifolds of the 5-sphere which are Sasaki-Einstein manifolds. We obtain new quiver gauge theories extending those induced via reduction over the leaf spaces of the characteristic foliation of the Sasaki-Einstein structure, which are projective planes. We describe the Higgs branches of these quiver gauge theories as moduli spaces of spherically symmetric instantons which are SU(3)-equivariant solutions to the Hermitian Yang-Mills equations on the associated Calabi-Yau cones, and further compare them to moduli spaces of translationally-invariant instantons on the cones. We provide an explicit unified construction of these moduli spaces as Kähler quotients and show that they have the same cyclic orbifold singularities as the cones over the lens 5-spaces.
description: v2: 54 pages, accepted for publication in Nuclear Physics B
Effective Field Model of Roughness in Magnetic Structures
Creators: name: Lepadatu, Serban
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An effective field model is introduced here within the micromagnetics formulation, to study roughness in magnetic structures, by considering sub-exchange length roughness levels as a perturbation on a smooth structure. This allows the roughness contribution to be separated, which is found to give rise to an effective configurational anisotropy for both edge and surface roughness, and accurately model its effects with fine control over the roughness depth without the explicit need to refine the computational cellsize to accommodate the roughness profile. The model is validated by comparisons with directly roughened structures for a series of magnetization switching and domain wall mobility simulations and found to be in excellent agreement for roughness levels up to the exchange length. The model is further applied to vortex domain wall mobility simulations with surface roughness, which is shown to significantly modify domain wall movement and result in dynamic pinning and stochastic creep effects.
Tools to Assess Behavioral and Social Science Competencies in Medical Education: A Systematic Review
Creators: name: Biagioli, Frances E.
name: Fuqua Miller, Marissa
name: Estroff, Sue E.
name: Satterfield, Jason M.
name: Lambros, Ann
name: Carney, Patricia A.
name: Palmer, Ryan T.
name: Teal, Cayla R.
name: Litzelman, Debra K.
name: Thayer, Erin K.
name: Hatt, William J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Behavioral and social science (BSS) competencies are needed to provide quality health care, but psychometrically validated measures to assess these competencies are difficult to find. Moreover, they have not been mapped to existing frameworks, like those from the Liaison Committee on Medical Education (LCME) and Accreditation Council for Graduate Medical Education (ACGME). This systematic review aimed to identify and evaluate the quality of assessment tools used to measure BSS competencies.
दीनदयाळ नागरी सहकारी बँक पुरवित असलेल्या नाविन्यपूर्ण सेवा, आर्थिक व सामाजिक बांधीलकी - एक अभ्यास
Creators: name: डॉ. मनोजकुमार यादवराव सोमवंशी, जोशी गोविंद दिगंबरराव
Publisher: name: Zenodo
Year: 2022

description: प्रस्तावना :- कोणत्याही देशाच्या आर्थिक विकासाचे स्वरूप हे त्या देशातील व्यवसायिक वर्गावर अवलंबून असते. व्यवसायाला मदत करणा­या इतर व्यापारी संस्था लाभासाठी कार्यरत असतात. परंतु सहकारी संस्था मात्र समानतेच्या तत्त्वावर सभासदांच्या आर्थिक व सामाजिक विकासासाठी कार्यरत असतात. या सहकारी संस्थांनी भारताच्या आर्थिक विकासात व समाजातील दुर्बल घटकांच्या आर्थिक समस्या सोडविण्यात महत्त्वाची भूमिका बजावलेली आहे. आजच्या युगात खाजगीकरण आणि जागतिकीकरणामुळे बँक व्यवसायात मोठी स्पर्धा निर्माण झालेली दिसून येते. उदारीकरणामुळे नवीन बँका स्थापन करणे सोपे झाले व त्यामुळे बँक व्यवसायामध्ये स्पर्धात्मक वातावरण निर्माण झाले. त्यामुळे नागरी सहकारी बँकांची व्यवहार्यता धोक्यात आली आहे. प्रस्तुत शोधनिबंधासाठी बदलती परिस्थिती गृहीत धरली आहे. नागरी सहकारी बँकांना आपली वित्तीय सुलभता आणि कार्यक्षमतेसाठी वित्तीय माहिती सुलभ रीतीने मिळविने अवश्यक आहे. ताळेबंद आणि नफा-तोटा पत्रक ही पारंपरिक वित्तीय पत्रके आता पुरेशी वित्तीय पत्रके दर्शविण्यात मदत करीत नाहीत. सध्या नागरी सहकारी बँकेच्या वित्तीय सुलभतेकरिता नवीन प्रतिमाने ज्यांच्यामुळे शास्त्रीय संबंध प्रस्थापित होतात ते स्वीकारणे आवश्यक आहे. आधुनिक वित्तीय साधने नागरी सहकारी बँकांचे आर्थिक विश्लेषण करण्यासाठी आवश्यक बनली आहेत. देशातील व राज्यातील नागरी सहकारी बँकाचा इतिहास पहाता अंबाजोगाई येथे दीनदयाळ नागरी सहकारी बँकेची स्थापना 2 जून 1997 रोजी झाली. बीड जिल्हा हा औद्योगिक दृष्ट्या अविकसीत जिल्हा आहे परंतु तरी देखील येथे बँकाचा विकास झालेला आहे. दीनदयाळ नागरी सहकारी बँकेच्या एकूण मुख्य शाखेसह 17 शाखा असून या पूर्ण मराठवाड्यामध्ये पसरलेल्या आहेत. या सर्व शाखांच्या माध्यमातून येथील लोकांचा आर्थिक स्तर उंचावण्याचे कार्य दीनदयाळ नागरी सहकारी बँक करीत असल्याचे दिसून येते. दीनदयाळ नागरी सहकारी बँकेच्या शाखा कमी असल्या तरी देखील या शाखांची कार्यपध्दती समाधानकारक आहे. या सर्व शाखांच्या माध्यमातून व्यापारी बँका प्रमाणे ग्राहकाला नाविन्यपूर्ण सेवांचा पूरवठा करुन आर्थिक व सामाजिक बांधिलकी जोपासण्याचा प्रयत्न बँक करीत असल्याचे दिसून येते.
The Similarity of Global Value Chains: A Network-Based Measure
Creators: name: Zhu, Zhen
name: Morrison, Greg
name: Puliga, Michelangelo
name: Chessa, Alessandro
name: Riccaboni, Massimo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: General Finance (q-fin.GN)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: International trade has been increasingly organized in the form of global value chains (GVCs) where different stages of production are located in different countries. This recent phenomenon has substantial consequences for both trade policy design at the national or regional level and business decision making at the firm level. In this paper, we provide a new method for comparing GVCs across countries and over time. First, we use the World Input-Output Database (WIOD) to construct both the upstream and downstream global value networks, where the nodes are individual sectors in different countries and the links are the value-added contribution relationships. Second, we introduce a network-based measure of node similarity to compare the GVCs between any pair of countries for each sector and each year available in the WIOD. Our network-based similarity is a better measure for node comparison than the existing ones because it takes into account all the direct and indirect relationships between country-sector pairs, is applicable to both directed and weighted networks with self-loops, and takes into account externally defined node attributes. As a result, our measure of similarity reveals the most intensive interactions among the GVCs across countries and over time. From 1995 to 2011, the average similarity between sectors and countries have clear increasing trends, which are temporarily interrupted by the recent economic crisis. This measure of the similarity of GVCs provides quantitative answers to important questions about dependency, sustainability, risk, and competition in the global production system.
description: 30 pages, 14 figures
Additional file 1 of Does HLA explain the high incidence of childhood-onset type 1 diabetes in the Canary Islands? The role of Asp57 DQB1 molecules
Creators: name: Nóvoa-Medina, Yeray
name: Marcelino-Rodriguez, Itahisa
name: Suárez, Nicolás M.
name: Barreiro-Bautista, Marta
name: Rivas-García, Eva
name: Sánchez-Alonso, Santiago
name: González-Martínez, Gema
name: Quinteiro-González, Sofía
name: Domínguez, Ángela
name: Cabrera, María
name: López, Sara
name: Pavlovic, Svetlana
name: Flores, Carlos
name: Wägner, Ana M.
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Plant Biology
subject: Computational Biology

description: Supplementary Material 1.
Additional file 1 of Mirror movements in multiple sclerosis -a clinical, electrophysiological, and imaging study
Creators: name: Holzapfel, Korbinian
name: Bayas, Antonios
name: Naumann, Markus
name: Ghosh, Tanupriya
name: Steuerwald, Verena
name: Allweyer, Martin
name: Kirschke, Jan S.
name: Behrens, Lars
Publisher: name: figshare
Year: 2024
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 1.
Natural Resource Rents, Inequality, and Terrorism in Africa
Creators: name: Ajide, Kazeem Bello
name: Alimi, Olorunfemi Yasiru
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Plant Biology

description: This study examines the impact of natural resource rents on terrorism via inequality channel in 34 African economies, straddling the period 1980–2012. This study employs a negative binomial regression, in which the following findings are established: first, the unconditional impact of natural resource rents on terrorism is found to be positive across the model specifications, particularly when Gini and Theil indices are controlled for. Second, inequality has no discernable first-order impact on terrorism across the board. Third, the marginal impacts of interactions between inequality measures, specifically Gini and Theil coefficients and total natural resource rents on terrorism are significantly negative. Four, the corresponding net effects of interactions between natural resource rents and inequality (Gini and Theil coefficients) on terrorism are positive, thus lending support to earlier submission of involving all constitutive variables in the specifications for the parameters to make economic sense. The results are robust to accounting for fixed and country effects using the Poisson Pseudo maximum likelihood high-dimension fixed effects estimator. On the policy front, maintaining fairness and equity in the distribution of rents from the ‘free gifts of nature’ remains a veritable policy menu, especially for the resource-rich economies, to counteracting terrorist activities.
Hypolepis nigrescens Hook., Sp. Fil.
Creators: name: Schwartsburd, Pedro B.
name: Navarrete, Hugo
name: Smith, Alan R.
name: Kessler, Michael
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Polypodiales
Dennstaedtiaceae
Hypolepis
Hypolepis nigrescens

description: Hypolepis nigrescens Hook., Sp. Fil. 2(6): 66, 1852 [t. 90C, Figs. 1–3 in 1851], nom. cons.
 Range:— Greater Antilles; mountains from southern Mexico to Colombia, southward to Bolivia (CO, LP), eastward to the intersection of Venezuela, Guyana, and northern Brazil.
 Ecology:— Fairly common; terrestrial, erect to scrambling, especially in disturbed forests; 1300–2500 m, 900– 2800 m elsewhere.
 Notes:— Herbarium specimens typically dry almost blackish. The laminar architecture resembles that of Paesia glandulosa. Hypolepis nigrescens is characterized by large blades (to 10 m long) with intermittent growth, petioles and rachises armed with curved, blackish spines, and costae adaxially with wings subtending the costules.
 A specimen from LP (Nor Yungas, 5 km de Chuspipata, M. Kessler 11977 et al., UC) may be a hybrid between Hypolepis nigrescens and an unarmed species, but the collection is sterile and lacks a petiole.
 Schwartsburd and Prado (2009) proposed the rejection of the name Hypolepis nigrescens (Schrad.) Nees, favoring H. nigrescens Hook., which was later sanctioned (Brummitt 2011).
description: Published as part of Schwartsburd, Pedro B., Navarrete, Hugo, Smith, Alan R. & Kessler, Michael, 2017, Prodromus of a fern flora for Bolivia. XXVI. Dennstaedtiaceae, pp. 251-268 in Phytotaxa 332 (3) on page 257, DOI: 10.11646/phytotaxa.332.3.2, http://zenodo.org/record/13723580