bluuebunny/crossref_metadata_2025 huggingface dataset:
Eine shiny windows theory?
Authors: Müller Anna-Lisa
Published: November 2019

Die Autor_innen Ray Forrest, Sin Yee Koh und Bart Wissink adressieren in ihrem Beitrag ein für die internationale Stadtforschung wichtiges Thema: die aktuell zu beobachtende Tendenz der sozialräumlichen Ausdifferenzierung in Städten, welche mit einer intensiver werdenden sozialen Ungleichheit und räumlichen Fragmentierung einhergeht. Empirischer Gegenstand ihrer Beobachtung ist die sozialräumliche Konzentration extrem reicher Menschen in urbanen Agglomerationen. Die Autor_innen formulieren ihre Beobachtung auf pointierte Weise und skizzieren fünf zentrale Punkte für die Analyse dieses Phänomens: die Herausarbeitung (1) seiner neuen, anderweitig nicht bekannten Merkmale; (2) der mit der Elite der Superreichen verbundenen Infrastrukturen sowie (3) der Politiken der (städtischen) Regierungen, die dazu beitragen, das Phänomen entstehen zu lassen; (4) die Bezugnahme auf Theorien der Neoliberalisierung als Rahmen für die Analyse des Phänomens sowie (5) die Berücksichtigung der lokalen Besonderheiten des global beobachtbaren Phänomens der Konzentration von Superreichen in bestimmten Städten und Stadtteilen.
„Wir kaufen den Kiez zurück“
Authors: Sarnow Martin
Published: November 2019

Aktuell wird in der kritischen Wohnungsforschung vermehrt die Frage nach Alternativen zur neoliberalen Wohnraumpolitik aufgeworfen. Der vorliegende Beitrag verortet sich in dieser Debatte und versucht diese über die Untersuchung markteinschränkender Politiken in Berlin Friedrichshain-Kreuzberg empirisch zu erweitern. Dabei wird der Frage nachgegangen, ob es mittels der stadtpolitischen Instrumente Milieuschutz und Vorkaufsrecht gelingt, Wohnraum zu dekommodifizieren und welche verschiedenen Akteur_innen und Konflikte bei der Umsetzung dieser Verordnungen auftreten. Davon ausgehend wird diese Politik als lokales postneoliberales Experiment eingeordnet, mit dem neue Netzwerke einer alternativen Wissensproduktion entstehen. Mit Rückgriff auf staatstheoretische Ansätze wird festgestellt, dass sich die Suche nach postneoliberalen Alternativen nicht in staatlich-institutionellen Erfolgen erschöpfen darf, sondern die Demokratisierung gesellschaftlicher Verhältnisse in den Blick nehmen muss.
Sieben Thesen zur urbanen Krise von Chemnitz
Authors: Intelmann Dominik
Published: November 2019

In der sächsischen Stadt Chemnitz kam es im Nachgang eines Tötungsdelikts durch Messerstiche seit dem 26. August 2018 zu rechtsautoritären Massenmobilisierungen von bundesweiter Ausstrahlung unter zahlreicher Teilnahme der ansässigen Bevölkerung. Das öffentliche Interesse ist dabei nicht nur hinsichtlich der konkreten Ereignisse, sondern auch bezüglich der lokalen Ursachen dieser Eskalation groß. Im Sinne einer raumsensiblen Vorgehensweise ist zu untersuchen, aus welcher bestimmten Ortsgeschichte heraus die Eigenarten der Chemnitzer Stadtgesellschaft und das rechte Protestgeschehen verständlich werden. Die sieben dazu aufgestellten Thesen widmen sich der kulturellen und institutionellen Modernisierung, dem Zustand der Zivilgesellschaft, der Einordnung der konkreten Ereignisse, der politischen Ökonomie Ostdeutschlands und der demographischen Situation.
Zwischen Stadtteilarbeit und Protest
Authors: Bescherer Peter , Witt Hannes
Published: November 2019

Das Interview mit einem Aktivisten einer Berliner Antifa-Gruppe thematisiert die Gegebenheiten vor Ort (Berliner Nordosten) und ihre Bedeutung für autoritäre und rechte Bewegungen als auch für antifaschistischen Protest. Geschichte, Sozialstruktur und Veränderungen (des Straßenbilds, der Nachbarschaften etc.) im Großbezirk Pankow werden als Ausdruck, aber auch als Bedingung rechter Hegemoniebestrebungen erkennbar. Im Feld der rechten Bewegungen und Parteien hat sich die AfD als maßgeblicher Akteur etabliert. Der Interviewpartner gibt Auskunft über Strategien und Forderungen, mit denen sich die AfD in lokale Auseinandersetzungen um Sicherheit, Wohnungen oder Großprojekte einbringt und wie sie in der Bezirksverordnetenversammlung auftritt. Einen weiteren Schwerpunkt des Interviews dreht sich um das Verhältnis von antifaschistischer und wohnungspolitischer sozialer Bewegung und in diesem Zusammenhang die sozialpolitischen Ursachen des gegenwärtigen Rechtsrucks.
„Die neue Angst vorm schwarzen Mann“
Authors: Huke Nikolai
Published: November 2019

Moralpanik bezeichnet eine Dynamik, im Zuge derer eine Gruppe als homogen, ‚fremd‘, ‚deviant‘ und Gefahr für die moralische Ordnung der Gesellschaft konstruiert wird. Der Artikel arbeitet am Beispiel von politischen Deutungskämpfen um Kriminalität und die Landeserstaufnahmeeinrichtung (LEA) Sigmaringen sowie um Vergewaltigungen in Tübingen typische Elemente der Moralpaniken im Bereich Flucht und Migration heraus: lange Äquivalenzketten, ein Generalverdacht gegenüber bestimmten Gruppen, raunende Sprache, die retrospektive Konstruktion einer vom Verfall bedrohte Idylle, der Rekurs auf einen vermeintlichen gesunden Menschenverstand, dem eine naive politische Korrektheit gegenübergestellt wird, sowie die Behauptung eines permissiven und hilflosen Agierens der Justiz- und Sicherheitsbehörden. Soziale Medien wie Facebook, so wird gezeigt, tragen insbesondere durch (teils strategische) Interventionen rassistisch auftretender Accounts zu einer raschen Ausweitung von Moralpaniken bei.
Stadt, Land, AfD
Authors: Förtner Maximilian , Belina Bernd , Naumann Matthias
Published: November 2019

Im Beitrag entwickeln wir einen kritischen Blick auf die Geographie der Wahlergebnisse der Alternative für Deutschland (AfD) bei den Bundestagswahlen 2017. Wir hinterfragen Erklärungsmuster, die in einem starren Stadt-Land-Gegensatz verhaftet bleiben und die komplexe Prozesshaftigkeit der Urbanisierung ignorieren. Dagegen gehen wir mit Henri Lefebvre und Theodor W. Adorno vom Urbanen und Ruralen als sozialen Verhältnissen aus, die sich im übergeordneten Prozess der Urbanisierung in dialektischer Weise scheiden sowie räumlich im Spannungsverhältnis von Zentrum und Peripherie materialisieren. Beispielhaft illustrieren wir diesen Prozess in der Diskussion von drei unterschiedlichen Orten, an denen die AfD bei den Bundestagswahlen besonders erfolgreich war: dem Landkreis Vorpommern-Greifswald als Fall einer umfassenden Peripherisierung, dem Quartier Pforzheim-Haidach als peripheres Zentrum und dem Stadtteil Mannheim-Schönau als zentrale Peripherie. Der Beitrag versucht damit eine räumliche Perspektive auf aktuelle Erfolge des Rechtspopulismus zu entwickeln wie auch Stadt-Land-Verhältnisse konzeptionell neu zu erfassen.
HUBUNGAN PEMBERIAN ASI EKSKLUSIF DENGAN LAMANYA PUPUT TALI PUSAT DI PUSKESMAS SELESAI KAB. LANGKAT TAHUN 2018
Authors: Sembiring Arihta br , Fitriani Nadya
Published: November 2019

Menurut Kementrian Kesehatan Republik Indonesia tahun 2014 mafaat ASI yaitu sebagai sumber giziterbaik, memberikan kekebalan tubuh, anti alergi dan makanan bayi yang aman dan bersih. Kandunganprotein ASI cukup tinggi dan komposisinya berbeda dengan protein yang terdapat dalam susu sapi. Tetanusneonatorum disebabkan oleh basil Clostridium tetani, yang masuk ke tubuh melalui luka. Penelitian inibertujuan untuk mengetahui hubungan pemberian ASI ekslusif dengan lamanya puput tali pusat. Penelitianini dilakukan di wilayah Puskesmas Selesai Kab. Langkat tahun 2018 dilakukan mulai April- Juni 2018.Penelitian ini merupakan jenis penelitian analitik dengan desain studi secara cross secsional dimanahubungan variabel independent dan dependent diukur pada saat bersamaan. Sampel berjumlah 62 diambilmenggunakan teknik random sampling dengan sampel minimal dari rumus Slovin yaitu 50 dan dilakukanuji Chi-square. Hasil penelitian menunjukkan terdapat hubungan yang signifikan antara pemberian ASIeksklusif dengan lamanya puput tali pusat pada bayi dengan p value sebesar 0,000, yang berarti p value < ?(0,05). Kesimpulan, terdapat hubungan yang signifikan antara pemberian ASI eksklusif dengan lamanyapuput tali pusat pada bayi di Puskesmas Selesai Kabupaten Langkat tahun 2018. Diharapkan para ibu nifasdisarankan untuk dapat memberikan ASI eksklusif dan perawatan tali pusat yang baik dan benar kepadabayinya untuk mempercepat puputnya tali pusat bayi.
HUBUNGAN PERSEPSI AKSEPTOR KB DENGAN PEMILIHAN MKJP DI KELURAHAN TAHTUL YAMAN KOTA JAMBI TAHUN 2017
Authors: Alami Triarsy , Diniyati Diniyati , Netty Indarmien
Published: November 2019

Pertumbuhan penduduk di Indonesia berkisar antara 2,15% hingga 2,49% per tahun. Strategi dalampelayanan kontrasepsi yang dikembangkan saat ini adalah menggalakkan pemakaian Metode KontrasepsiJangka Panjang (MKJP). Menurut Data Puskesmas Tahtul Yaman Kota Jambi jumlah akseptor KB IUDsebanyak 0 akseptor, Suntik 23 akseptor, Pil 384 akseptor, Kondom 293 akseptor, Implant 54 akseptor,MOP 0 akseptor dan MOW 0 akseptor. Cara kontrasepsi yang termasuk MKJP adalah IUD, Implant, MOW,dan MOP. Berdasarkan 10 akseptor yang menggunakan kontrasepsi pil dan suntik ditanyakan pada saatpengamilan data mengatakan tidak mau menggunakan IUD karena merasa takut, disamping itu belummendapat izin suami. Dampak pemakaian pil atau pun suntikan yang dipakai selama lebih 2 tahun akanmenimbulkan tekanan darah dan kenaikan berat badan (Sulistyawati, 2013 : 56). Penelitian ini merupakanpenelitian analitik dengan pendekatan cross sectional yang bertujuan untuk mengetahui hubungan persepsiakseptor KB dengan pemilihan MKJP di Kelurahan Tahtul Yaman, populasi seluruh akseptor KB diKelurahan Tahtul Yaman sebanyak 754 akseptor, dengan jumlah sampel 90 responden dan sampel diambildengan teknik simple random sampling. Penelitian dilakukan pada bulan Maret sampai Desember 2017 danpengambilan sampel dilakukan pada tanggal 21 sampai 28 Agustus 2017 dengan menggunakan lembarpertanyaan (kuesioner), selanjutnya data dianalisis menggunakan analisis univariat dan bivariat.Berdasarkan hasil penelitian diketahui sebagian responden (35,56%) menggunakan MKJP, sebagian(64,44%) responden menggunakan Non MKJP, sebagian (51,1%) responden memiliki persepsi kurang baiktentang pemilihan MKJP, sebagian (48,9%) responden memiliki persepsi baik tentang pemilihan MKJP danhasil uji statistik diketahui bahwa p-value = 0,000 < 0,05, berarti ada hubungan yang bermakna antarapersepsi dengan pemilihan MKJP. Berdasarkan hasil penelitian masih ada ibu yang belum memakai KBMKJP. Disarankan kepada Kelurahan Tahtul Yaman untuk meminta staf puskesmas memberi penyuluhanlebih jelas lagi tentang pemakaian kontrasepsi khususnya IUD, Implan, dan sterilisasi laki-laki maupunperempuan dalam rangka meningkatkan pengetahuan dan persepsi Akseptor KB dalam pemilihan MKJP.
PEMAKAIAN BUAH BIT DAN UBI JALAR UNGU SEBAGAI PEWARNA ALAMI PADA PEMERIKSAAN PLAK SISWA/I SMP NEGERI 4 KEC. DATUK BANDAR TIMUR KOTA TANJUNG BALAI
Authors: Siregar Rawati
Published: November 2019

Apabila gigi tidak dibersihkan maka pada permukaan gigi akan terdapat lapisan transparan yang melekat eratyang dikenal sebagai lapisan plak gigi. Untuk mengetahui keberadaan plak dibutuhkan bahan pewarna yangdapat mewarnai permukaan plak. Kandungan zat pewarna betasianin pada buah bit dan antosianin pada ubijalar ungu, berpotensi sebagai sumber bahan pewarna alami untuk melihat plak pada gigi. Penelitian inibersifat deskriptif dengan menggunakan metode survei yang bertujuan untuk mengetahui peranan buah bitdan ubi jalar ungu untuk pemeriksaan plak pada Siswa/i SMP Negeri 4 Kec.Datuk Bandar Timur KotaTanjung Balaidengan sampel 60 orang. Hasil penelitian menunjukkan bahwa nilai rata-rata indeks plaksesudah pengolesan buah bit sebesar 1,43 dengan kriiteria sedang dan ubi jalar ungu sebesar 1,13 dengankriteria sedang. Penggunaan buah bit dan ubi jalar ungu dapat digunakan sebagai bahan alternatif pewarnaalami untuk pemeriksaan plak. Rata-rata indeks plak setelah pengolesan buah bit sebesar 1,43 dan rata-rataindeks plak setelah pengolesan ubi jalar ungu sebesar 1,13.
GAMBARAN PENYULUHAN DENGAN MEDIA POSTER DAN ANIMASI TERHADAP PENGETAHUAN TENTANG PEMELIHARAAN KESEHATAN GIGI PADA SISWA/I KELAS IV SDN 050736 PULAU BANYAK KECAMATAN TANJUNG PURA
Authors: Lusiani Yetti , Ridha M Afdal
Published: November 2019

Counseling is an effort to provide information and explanations, which must be taken by everyone so thatthey can solve the problems they face and improve the quality of life. To facilitate counseling activities,mediais needed. Media is an effort that can be used to channel messages from senders to recipients so that they canstimulate thoughts, feelings, attention and interests in maintaining optimal health. This study aims todetermine the description of counseling with poster and animation media on knowledge about dental healthcare in fourth grade students of SDN 050736 Pulau Banyak, Tanjung Pura sub district, amounting to 30peoples with a total sample of 30 students. The type of research used was descriptive with the survey method.The results of this study found that the level of knowledge of students about maintaining dental health beforecounseling with poster and animation media, namely 23 peoples (76.6%) were in the medium category. Thenafter counseling the level of knowledge of students about maintaining dental health with media posters has agood level of knowledge there were 8 students (53.3%) and with animation media have good level ofknowledge, there were 15 students (100%). Based on this research, it can be seen that counseling usinganimation media was more effective than using poster media.
HUBUNGAN MOBILISASI PADA MASA NIFAS DENGAN PENGELUARAN LOCHEA Di PRAKTEK MANDIRI BIDAN L.M PEMATANGSIANTAR
Authors: Sianipar Kandace
Published: November 2019

Mobilisasi atau gerakan sesegera mungkin bisa mencegah aliran darah terhambat, dengan melakukanmobilisasi maka pengeluaran lochea akan meningkat, sehingga pembuluh darah yang ada di otot uterus akanterjepit. Penelitian ini bertujuan untuk mengetahui hubungan mobilisasi pada masa nifas dengan pengeluaranlochea. Jenis penelitian survey analitik dengan desain cross sectional. Lokasi penelitian di PMB L. MPematangsiantar, sampel penelitian adalah Ibu masa nifas berjumlah 30 orang. Data yang digunakan adalahdata primer dan sekunder yang diperoleh dari kuesioner. Hasil penelitian dianalisis dan disajikan dalambentuk tabel. Pengolahan data dilakukan menggunakan program komputer. Berdasarkan penelitianditemukan bahwa ibu postpartum 4 – 7 hari sebanyak 16 orang (53,3%). Dan ibu yang melakukan mobilisasidengan pengeluaran lochea lancar sebanyak 16 orang (53,3%). Berdasarkan hasil uji chi-squaremenunjukkan ada hubungan mobilisasi pada masa nifas dengan pengeluaran lochea. Diharapkan kepada ibuuntuk melakukan mobilisasi seusai 2 jam setelah melahirkan agar pengeluaran locheanya lancar, sehinggaangka kematian ibu berkurang. Dan kepada tenaga kesehatan khususnya bidan agar memberikan penyuluhantentang keuntungan dan kerugian dari mobilisasi.
GAMBARAN PENGETAHUAN ANAK TENTANG JENIS MAKANAN KARIOGENIK TERHADAP TERJADINYA KARIES GIGI PADA SISWA/I KELAS V-B SD NEGERI 068003 KAYU MANIS PERUMNAS SIMALINGKAR MEDAN TUNTUNGAN
Authors: Nainggolan Sri Junita
Published: November 2019

Carcinogenic foods can cause tooth decay (dental caries). Carcinogenic food comes in the form of sweetfood like candy, chocolate, cookies, sugar and other food which is starchy, sticky, carbohydrated andcrumbled in the mouth. This research was a descriptive study with survey method aiming to find out thedescription of children’s knowledge about kinds of carcinogenic food towards the occurrence of dentalcaries among grade 5b students at SDN 068003 Kayu Manis Perumnas Simalingkar Medan Tuntungan. Thenumber of the samples was 35 students. The data were collected through the questionnaires and directexamination to the patients’ oral cavity. The result showed that 30 students (85%) had good knowledgeabout the types of cariogenic food and 5 students (15%) had medium knowledge. Through the directexamination to 35 students, 24 students (68%)had caries in milk teeth, 14 students (40%) had caries inpermanent teeth. It is expected that students choose healthy food and reduce consuming sweet foods that canlead to dental caries.
A chiral self-sorting photoresponsive coordination cage based on overcrowded alkenes
Authors: Stuckhardt Constantin , Roke Diederik , Danowski Wojciech , Otten Edwin , Wezenberg Sander J , Feringa Ben L
Published: November 2019

In recent years, increasing efforts have been devoted to designing new functional stimuli-responsive supramolecular assemblies. Here, we present three isomeric supramolecular coordination complexes consisting of a Pd2L4 stoichiometry. As shown by NMR, CD and X-ray studies, as well as DFT calculations, these complexes form cage-like structures by chiral self-sorting. Photochromic ligands derived from first generation molecular motors enable light-driven interconversion between the three isomers. Two of the isomers were able to form host–guest complexes opening up new prospects toward stimuli-controlled substrate binding and release.
Ultraviolet Imaging Telescope View of Dwarf Irregular Galaxy IC 2574: Is the Star Formation Triggered Due to Expanding H i Shells?
Authors: Mondal Chayan , Subramaniam Annapurni , George Koshy
Published: November 2019

Star-forming dwarf galaxies in the local volume are diverse and ideal test beds to understand the details of star formation in a variety of environments. Here we present a deep far-UV (FUV) imaging study of the nearby dwarf irregular galaxy IC 2574 using the Ultraviolet Imaging Telescope. We identified 419 FUV-bright regions with radii between 15 and 285 pc in the galaxy and found that 28.6% of them are located in H i shells, 12.6% inside holes, and 60.1% away from the holes. The H i column density is found to be more than 1021 cm−2 for 82.3% of the identified regions. Thirty of the 48 H i holes show triggered star formation in their shells, while 16 holes do not show any related FUV emission. Cross-matching with Hα emission, we found that 23 holes have both FUV and Hα emission in their shells, signifying a very recent trigger. Therefore, star formation in the galaxy has been partly triggered due to the expanding H i holes, whereas in the majority of the sites, it is driven by other mechanisms. Irrespective of the location, larger star-forming complexes were found to have multiple substructures. We report two resolved components for the remnant cluster of the supergiant shell and estimate their masses. The star formation rate of IC 2574 is found to be 0.57 M
⊙ yr−1, which is slightly higher compared to the average value of other nearby dwarf irregular galaxies.
Frequency Distribution of Acoustic Oscillation in the Solar Atmosphere During Flare Event
Authors: Wiśniewska A. , Chmielewska E. , Radziszewski K. , Roth M. , Staiger J.
Published: November 2019

We present a study of multi-wavelength observations, of a C 2.3 solar flare in Active Region NOAA 12353, observed on 2015 May 23, which reveal new properties of acoustic waves in the flaring region. The space-, and ground-based data measured by the HELioseismological Large Regions Interferometric Device, operating at the Vacuum Tower Telescope, the Atmospheric Imaging Assembly (AIA), and Helioseismic and Magnetic Imager on board the Solar Dynamic Observatory, were used in this paper. First, using power spectra of solar oscillations, we identified the dominant frequencies and their location at seven different atmospheric levels before and after the flare event. Second, based on AIA observations taken in six Extreme Ultraviolet filters, we derived Differential Emission Measure (DEM) profiles and DEM maps of the flare. Finally, we confirm the sigma shape of the magnetic field in the active area, directly related to the flare. Our results are as follows: the high-frequency waves (ν > 5 mHz) in the photosphere, in both cases, before and after the flare, are generated at the footpoints of the chromospheric loop, while in the chromosphere (Hα line), before the event the power enhancement exhibits the maximum of flare emission, and after the eruption the enhancement by all frequencies is observed only in the post-flare loop area. Moreover, the power of oscillation in the pores surrounding the area before the flare has a random character, while after the flare oscillation power is concentrated in the pore, and weakened outside of. We conclude that accurate detection of high-frequency acoustic waves in active regions can lead to faster and easier prediction of high-energy events.
The Outer Rim Simulation: A Path to Many-core Supercomputers
Authors: Heitmann Katrin , Finkel Hal , Pope Adrian , Morozov Vitali , Frontiere Nicholas , Habib Salman , Rangel Esteban , Uram Thomas , Korytov Danila , Child Hillary , Flender Samuel , Insley Joe , Rizzi Silvio
Published: November 2019

We describe the Outer Rim cosmological simulation, one of the largest high-resolution N-body simulations performed to date, aimed at promoting science to be carried out with large-scale structure surveys. The simulation covers a volume of (4.225 Gpc)3 and evolves more than one trillion particles. It was executed on Mira, a BlueGene/Q system at the Argonne Leadership Computing Facility. We discuss some of the computational challenges posed by a system such as Mira, a many-core supercomputer, and how the simulation code, Hardware/Hybrid Accelerated Cosmology Code, has been designed to overcome these challenges. We have carried out a large range of analyses on the simulation data and we report on the results as well as the data products that have been generated. The full data set generated by the simulation totals more than 5 PB of data, making curation and handling of the data a large challenge in itself. The simulation results have been used to generate synthetic catalogs for large-scale structure surveys, including Dark Energy Spectroscopic Instrument and eBOSS, as well as experiments on the cosmic microwave background. A detailed catalog for the data challenges of the Large Synoptic Survey Telescope Dark Energy Science Collaboration has been created as well. We publicly release some of the Outer Rim halo catalogs, downsampled particle information, and lightcone data.
Small-scale H i Channel Map Structure Is Cold: Evidence from Na i Absorption at High Galactic Latitudes
Authors: Peek J. E. G. , Clark S. E.
Published: November 2019

The spatial distribution of neutral hydrogen (H i) emission is a powerful probe of interstellar medium physics. The small-scale structure in H i channel maps is often assumed to probe the velocity field rather than real density structures. In this work we directly test this assumption, using high-resolution GALFA-H i observations and 50,985 quasar spectra from the Sloan Digital Sky Survey. We measure the equivalent widths of interstellar Na i D1 and Na i D2 absorption, and robustly conclude that together they depend nearly four times as strongly on the column density of small-scale structure in H i than on either the large-scale H i structure or the total H i column. This is inconsistent with the hypothesis that small-scale channel map structure is driven by velocity crowding. Instead, the data favor the interpretation that this emission structure predominantly originates in cold, dense interstellar material, consistent with a clumpy cold neutral medium.
The Halo Mass Function of Late-type Galaxies from H i Kinematics
Authors: Li Pengfei , Lelli Federico , McGaugh Stacy , Pawlowski Marcel S. , Zwaan Martin A. , Schombert James
Published: November 2019

We present an empirical method to measure the halo mass function (HMF) of galaxies. We determine the relation between the H i line width from single-dish observations and the dark matter halo mass (M
200) inferred from rotation-curve fits in the Spitzer Photometry and Accurate Rotation Curves (SPARC) database, then we apply this relation to galaxies from the H i Parkes All Sky Survey (HIPASS) to derive the HMF. This empirical HMF is well fit by a Schechter function, and matches that expected in the Λ Cold Dark Matter (ΛCDM) model over the range 1010.5 < M
200 < 1012
M
⊙. More massive halos must be poor in neutral gas to maintain consistency with the power law predicted by ΛCDM. We detect no discrepancy at low masses. The lowest halo mass probed by HIPASS, however, is just greater than the mass scale where the Local Group missing satellite problem sets in. The integrated mass density associated with the dark matter halos of H i-detected galaxies sums to Ωm,gal ≈ 0.03 over the probed mass range.
Rovibrational Spectral Analysis of CO3 and C2O3: Potential Sources for O2 Observed in Comet 67P/Churyumov–Gerasimenko
Authors: Fortenberry Ryan C. , Peters Daniel , Ferrari Brian C. , Bennett Christopher J.
Published: November 2019

The recent ROSETTA mission to comet 67P/Churyumov–Gerasimenko detected surprisingly high levels of molecular oxygen (O2; hypervolatile species) in the coma. Current models predict that considerable levels of other hypervolatiles (such as molecular nitrogen, N2, methane, CH4, and Argon) should be found at similar levels, whereas they are more depleted. One explanation explored here is that larger (less volatile) parent molecules may have been formed during radiolysis of cometary ices and, upon sublimation, are subsequently broken down within the coma into smaller, more volatile fragments. In support of this hypothesis, this work employs reliable quantum chemical techniques to provide the spectral data necessary for the detection of two candidate precursor “parent” molecules, cyclic carbon trioxide (c-CO3), and cyclic dicarbon trioxide (c-C2O3). Benchmark computations performed for gas-phase CO2 give vibrational frequencies to within 1.5 cm−1 or better for the three fundamentals. Both c-CO3 and c-C2O3 have strong infrared features in the 4.5–5.5 μm (1800–2200 cm−1) range and other notable infrared features closer to 1100 cm−1 (9.10 μm). These molecules are both rotationally active, unlike CO2, and are therefore potentially observable and present new targets for radio telescope observations. Due to the stronger dipole moment, c-CO3 should be more easily detectable than the nearly non-polar c-C2O3. These data may help observations of these molecules and can provide insights as to how radiation-driven derivatization of CO/CO2 precursors could contribute to the generation of higher-mass parent species that subsequently degrade to produce more volatile species, such as O2, observed in cometary comae.
Scale effect on the reservoir permeability and porosity over a wide range of void structure (example of the Tedinskoye oil field)
Authors: Putilov IS , Yuriev AV , Popov NA , Chizhov DB
Published: November 2019

A study of the scale effect on the reservoir permeability and porosity over a wide range of the void structure appears to be a significant research task. In this work, we aimed to investigate the scale effect over a wide range of alternating reservoir properties, depending on changes in the void structure, as well as to assess the feasibility of using a whole core with a retained drilling diameter in determining the permeability and porosity of complex reservoirs. For the first time, core samples are proposed to be selected on the basis of space zoning, which takes into consideration the void structure and the scale effect. Filtration studies using such samples are expected to correctly reflect the physical and hydrodynamic characteristics of the reservoir, thus being valuable for calculating reserves and designing project documentation. Based on the performed linear discriminant analysis, the practical problem of dividing the D3fm object of the Tedinskoye oil field by the type of productive sediment reservoir is solved. In addition, an analysis of the results of physical and hydrodynamic studies confirmed the significance of the scale effect when studying the porosity and permeability properties of complex reservoirs. A significant effect of the void structure on the value of residual water-oil saturation is demonstrated. The feasibility of using whole core samples is substantiated, taking into account the quantitative measure of the scale effect differentiated over a wide range of porosity and permeability when determining the boundary values of porosity for carbonate deposits of the D3fm object of the Tedinskoye oil field. The obtained results show that the calculation of geological and recoverable reserves should take into account both the scale effect and the structural features of the void.
Use of Recommended Non-surgical Knee Osteoarthritis Management in Patients prior to Total Knee Arthroplasty: A Cross-sectional Study
Authors: King Lauren K. , Marshall Deborah A. , Faris Peter , Woodhouse Linda J. , Jones C. Allyson , Noseworthy Tom , Bohm Eric , Dunbar Michael J. , Hawker Gillian A.
Published: November 2019

Objective.

Our aim was to assess prior use of core recommended non-surgical treatment among patients with knee osteoarthritis (OA) scheduled for total knee arthroplasty (TKA), and to assess potential patient-level correlates of underuse, if found.

Methods.

This was a cross-sectional study of patients undergoing TKA for primary knee OA at 2 provincial central intake hip and knee clinics in Alberta, Canada. Standardized questionnaires assessed sociodemographic characteristics, social support, coexisting medical conditions, OA symptoms and coping, and previous non-surgical management. Multivariable logistic regression was used to assess the patient-level variables independently associated with receipt of recommended non-surgical knee OA treatment, defined as prior use of pharmacotherapy for pain, rehabilitation strategies (exercise or physiotherapy), and weight loss if overweight or obese (body mass index ≥ 25 kg/m2).

Results.

There were 1273 patients included: mean age 66.9 years (SD 8.7), 39.9% male, and 44.1% had less than post-secondary education. Recommended non-surgical knee OA treatment had been used by 59.7% of patients. In multivariable modeling, the odds of having received recommended non-surgical knee OA treatment were significantly and independently lower among individuals who were older (OR 0.97, 95% CI 0.95–0.99), male (OR 0.33, 0.25–0.45), and who lacked post-secondary education (OR 0.70, 0.53–0.93).

Conclusion.

In a large cross-sectional analysis of knee OA patients scheduled for TKA, 40% of individuals reported having not received core recommended non-surgical treatments. Older individuals, men, and those with less education had lower odds of having used recommended non-surgical OA treatments.
Effect of a Single Apolipoprotein L1 Gene Nephropathy Variant on the Risk of Advanced Lupus Nephritis in Brazilians
Authors: Vajgel Gisele , Lima Suelen Cristina , Santana Diego Jeronimo S. , Oliveira Camila B.L. , Costa Denise Maria N. , Hicks Pamela J. , Cavalcante Maria Alina G.M. , Langefeld Carl D. , Valente Lucila Maria , Crovella Sergio , Kirsztajn Gianna Mastroianni , Freedman Barry I. , Sandrin-Garcia Paula
Published: November 2019

Objective.

Apolipoprotein L1 gene (APOL1) G1 and G2 renal risk alleles (RRA) are associated with endstage renal disease in blacks with lupus nephritis (LN). The present study determined frequencies ofAPOL1RRA in nonwhite Brazilian patients with LN and controls to assess association with renal outcomes.

Methods.

APOL1 RRA were genotyped in 222 healthy blood donors (controls) and 201 cases with LN from 3 outpatient clinics. Two single-nucleotide polymorphisms in the G1 (rs73885319 and rs60910145) and an indel for the G2 (rs71785313) variant were genotyped.

Results.

The frequency ofAPOL1RRA in nonwhite Brazilian LN cases did not differ significantly from healthy controls, and few participants had 2 RRA. In the sample, 84.6% of LN cases and 84.2% of controls had 0 RRA, 13.4% and 15.3% had 1 RRA, and 2.0% and 0.4% had 2 RRA, respectively. LN cases with ≥ 1APOL1RRA had similar baseline characteristics and renal responses to treatment, yet faced higher risk for progressive chronic kidney disease (CKD) to an estimated glomerular filtration rate < 30 ml/min/1.73 m2compared to those with 0 RRA (11.2% with 0, 29.6% with 1; 50% with 2 RRA, p = 0.005). Although glomerular lesions and activity scores on initial kidney biopsy did not differ significantly between individuals based onAPOL1genotype, chronicity scores, tubular atrophy, and interstitial fibrosis were more severe in those with ≥ 1 RRA (p = 0.011, p = 0.002, p = 0.018, respectively).

Conclusion.

Although initial kidney lesions and treatment responses were similar, a singleAPOL1RRA in nonwhite Brazilians with LN was associated with increased risk of advanced CKD and possibly more tubulointerstitial damage.
Tributo y mita urbana. Movilización y migración indígena hacia Quito en el siglo XVII
Authors: Ciriza-Mendívil Carlos D.
Published: November 2019

El amplio número de naturales que habitaban la ciudad de Quito para mediados del siglo XVII plantea numerosas cuestiones. A fin de cuentas, al tratarse de una urbe de origen colonial esta población de indígenas migrantes había acudido a la capital de la Audiencia por varios motivos. El objetivo de este estudio es, por un lado, mostrar la extensión de la tributación indígena y del servicio de la mita en la ciudad de Quito, cuya evasión ha sido punto central en numerosos análisis de movilidad indígena. Y por otro, presentar la conjunción de diversos factores que hicieron del núcleo urbano quiteño un foco de atracción poblacional indígena masivo desde mediados del siglo XVI hasta finales del siglo XVII.
El compadrazgo de esclavos en el siglo XVIII en la parroquia de Nuestra Señora del Socorro (Nuevo Reino de Granada)
Authors: Salazar Carreño Robinson
Published: November 2019

El artículo analiza los lazos de parentesco establecidos por los esclavos a través del sacramento del bautismo en la parroquia de Nuestra Señora del Socorro (virreinato de la Nueva Granada), en el período comprendido entre 1700 y 1779. Se busca llenar un vacío en la historiografía de Colombia en lo referente al tema. El objetivo es mostrar la diversidad de los vínculos de compadrazgo en la población cautiva estudiada, la cual privilegió a los padrinos y madrinas de condición libre. La hipótesis central consiste en que los esclavos fueron los protagonistas de su propia existencia, haciendo del compadrazgo el mecanismo para mejorar en la vida.
Las tramas judiciales del «delito de independencia» durante la crisis virreinal y monárquica, Río de la Plata, 1806/08-1810
Authors: Polastrelli Irina
Published: November 2019

Este artículo muestra las alternativas planeadas para afrontar la crisis virreinal y monárquica en el Río de la Plata y los esfuerzos de las autoridades coloniales para condenarlas bajo la acusación común de «delito de independencia». A través del análisis de causas judiciales, se revelan los múltiples significados del concepto de independencia y su uso político durante la crítica coyuntura, así como también las disputas por el reparto del poder entre las autoridades involucradas.
«Un bello fantasma formado para lisonjear las almas libres».* La (in) seguridad individual y la expatriación en el Buenos Aires revolucionario
Authors: Tejerina Marcela V.
Published: November 2019

El trabajo aborda los debates y las ideas en torno a la suspensión de la seguridad individual durante los procesos de expulsión territorial en el Buenos Aires revolucionario. A partir del análisis de sumarios, expedientes, documentación autobiográfica y la prensa periódica, se evalúan la relación entre los derechos y los poderes en los inicios del proceso de construcción republicana y los condicionamientos propios de la cultura jurídico-política tradicional.
Crisis colonial y acercamiento cultural: la tardía normalización de las relaciones entre España y Colombia, 1868-1898
Authors: Sánchez Andrés Agustín
Published: November 2019

El artículo analiza los factores que determinaron la tardía normalización de las relaciones entre España y Colombia. La incidencia de la cuestión cubana, especialmente durante las crisis de 1868-1878 y 1895-1898, confirió un interés geopolítico a dichos vínculos y acentuó el interés español por establecer relaciones con su antigua colonia. Este proceso se vio acompañado por el progresivo acercamiento entre las élites político-intelectuales de ambos países, producido por la atracción que el hispanismo conservador ejerció sobre el proyecto de construcción nacional impulsado por los gobiernos de la Regeneración en Colombia.
Los grandes proyectos hidráulicos y las políticas antipalúdicas: Un estudio comparativo entre el Plan de Riegos del alto Aragón y el Canal de Panamá
Authors: Navarro-García Jesús R. , Chinea Jorge L.
Published: November 2019

El Canal de Panamá y los sistemas de riego que se implementaron en la Cuenca Hidrográfica del Ebro desde finales del siglo XIX son muestras representativas de las implicaciones sanitarias que estas obras suponían en unos territorios que experimentaban profundas transformaciones ambientales y que recibían una abundante mano de obra que, además, se veía obligada a residir en las proximidades de zonas convertidas en hábitats muy favorables para el desarrollo de los vectores de la malaria. Pese a incorporar al estudio dos zonas muy diferentes entre sí, se observa cómo la zona con menores precipitaciones también fue capaz de generar fases epidémicas de la enfermedad, no solo en la fase de construcción de los embalses y canalizaciones sino también con la puesta en marcha de los regadíos.
Diversity of Myxomycetes in arid zones of Peru part II: the cactus belt and transition zones
Authors: Lado Carlos , Wrigley de Basanta Diana , Estrada-Torres Arturo , Stephenson Steven L. , Treviño I.
Published: November 2019

The results obtained from a second survey for Myxomycetes in the arid areas of Peru are reported. A total of 37 localities from the cactus belt (‘cardonal’), between 1500 and 3000 m a.s.l., were sampled over six years. This survey is based on 601 identifiable collections of myxomycetes, developed in the field under natural conditions or those that were recovered from moist chamber cultures. In total, 84 taxa representing 19 genera were recorded. One new species, Cribraria spinispora Lado & D.Wrigley sp. nov., is described, three species new to South America and 22 additional new species for Peru are reported as well. Endemic plants, expecially cacti, had a particular relevance as myxomycete substrates. The predominance of the order Physarales T.Macbr. in arid areas is reinforced. Comments are included on some collections, as well as SEM micrographs of several species. A statistical evaluation of the diversity of myxomycetes in the cardonal area and a comparison of this area with the dry coastal desert of Peru and other Neotropical xeric environments are also included. Results show that the arid areas are rich in myxomycetes, and that each area has a unique assemblage. The differences appear to be related to the host plants.
Understanding the Quality Determinants that Influence the Intention to Use the Mobile Learning Platforms: A Practical Study
Authors: Alshurideh Muhammad Turki , Salloum Said Abdelrahim , Al Kurdi Barween , Abdel Monem Azza , Shaalan Khaled
Published: November 2019

There is a widespread use of Internet technology in the present times, because of which universities are making investments in Mobile learning to augment their position in the face of extensive competition and also to enhance their students’ learning experience and efficiency. Nonetheless, Mobile Learning Platform are only going to be successful when students show acceptance and adoption of this technology. Our literature review indicates that very few studies have been carried out to show how university students accept and employ Mobile Learning Platform. In addition, it is asserted that behavioral models of technology acceptance are not equally applied in different cultures. The purpose of this study is to develop an extension of Technology Acceptance Model (TAM) by including four more constructs: namely, content quality, service quality, information quality and quality of the system. This is proposed to make it more relevant for the developing countries, like the United Arab Emirates (UAE). An online survey was carried out to obtain the data. A total of 221 students from the UAE took part in this survey. Structural equation modeling was used to determine and test the measurement and structural model. Data analysis was carried out, which showed that ten out of a total of 12 hypotheses are supported. This shows that there is support for the applicability of the extended TAM in the UAE. These outcomes suggest that Mobile Learning Platform should be considered by the policymakers and education developers as being not only a technological solution but also as being new e-learning platform especially for distance learning students.
Using Mobile Learning Tools in Higher Education: A UAE Case
Authors: Eppard Jenny , Hojeij Zeina , Ozdemir-Ayber Pinar , Rodjan-Helder Marlieke , Baroudi Sandra
Published: November 2019

Research indicates that mobile learning (ML), has the potential to transform teaching and learning. Despite its benefits, mobile learning adoption is a challenging process which requires support to facilitate its integration. The focus of this article is to investigate the factors that could affect ML acceptance. The quantitative and qualitative data collected from the surveys revealed additional information regarding the pedagogical benefits of and obstacles to mobile learning integration. Even though participants in this study reported to be late adopters of technology, they  maintained that ML is useful for learning, specifically ubiquitous learning. Teachers also noted that mobile learning integration is more successful when aligned with local cultural norms.  Mobile learning tools that might be culturally appropriate in one context may not always be accepted in another.  Findings of this study provide several implications and recommendations for future research on mobile learning implementation. Further research could explore the development and utilization of a rubric with specific criteria for evaluating mobile learning applictations. �  
Enquêter sur le parti Russie unie : de la défiance politique à l’illégitimité scientifique ?
Authors: Fauconnier Clémentine
Published: November 2019

L’analyse porte sur Russie unie, parti politique hégémonique créé en 2001 pour soutenir Vladimir Poutine. L’objet de cette contribution est de montrer la façon dont l’étude de ce type d’objet, « antipathique » et souvent considéré comme illégitime, est porteuse d’une charge critique importante en invitant à revisiter les paradigmes à la disposition des chercheurs. Elle s’attachera notamment à montrer comment la préparation et la conduite du terrain, auprès d’enquêtés eux aussi souvent dans une posture de défiance face à l’enquêteur, implique dès le début de l’analyse un travail de dénaturalisation d’un certain nombre de notions et de concepts ainsi qu’une attention particulière à la configuration sociale et politique différente du contexte dans lequel ils s’inscrivent. Il s’agira alors de restituer le terrain sans sympathie comme une expérience de décentrement – scientifique, mais aussi, politique, social, personnel.
Devenir (temporairement) « frontiste ». Ce que les rapports de genre et de classe disent du FN à partir d’en bas
Authors: Crippa Margherita
Published: November 2019

À travers le retour réflexif sur une expérience d’enquête ethnographique dans un groupe de militant·es frontistes, cette contribution montre les logiques de structuration d’un groupement politique au croisement de plusieurs rapports de pouvoir. Cet article trouve sa raison d’être dans deux principes méthodologiques et analytiques. D’abord, l’objectivation des relations d’enquête contribue à part entière à la compréhension d’une ou de plusieurs facettes de l’objet étudié, en mettant en exergue certaines de ses propriétés structurelles, son fonctionnement ou encore son économie symbolique. Ensuite, l’adoption d’un point de vue intersectionnel permet de penser systématiquement l’articulation de plusieurs dimensions sociales dans la production des relations d’enquête et, par conséquent, les effets de cette articulation dans la compréhension des processus sociaux qui produisent les groupes. Partant, cette contribution interroge les enjeux des relations d’enquête nouées en milieu frontiste à un moment clef de son histoire. Parallèlement à l’arrivée de Marine Le Pen à la tête du FN, le parti s’intègre de plus en plus au champ politique. Alors que son personnel, à partir de sa présidente, se veut partiellement nouveau, rajeuni, féminisé et soucieux d’afficher un visage du FN censé être plus accueillant, j’ai voulu interroger les rapports sociaux qui structurent l’organisation derrière sa façade. Une certaine proximité sociale avec les enquêté·es et les ressources rares, en lien avec ma féminité, que j’ai pu leur offrir ont déterminé l’ouverture et le déroulement du terrain et défini les modalités de mon engagement. Ce qui a permis de comprendre les ressorts variés de l’engagement qui font (et défont) le parti à partir d’en bas. La place que j’ai occupée au sein du groupe et la façon dont j’ai été amenée à investir certaines tâches militantes montrent comment les rapports de genre et de classe généralement défavorables aux femmes structurent le groupe militant en le construisant presque de toute pièce et confortent l’hégémonie hiérarchique de certain·es acteur·rices.
Un shabbat à la mosquée. Les mésaventures d’un anthropologue au kibboutz
Authors: Mevel Ellie
Published: November 2019

L’article propose d’explorer la façon dont la naissance d’une « détestation politique » (Avanza, 2008) réciproque entre le chercheur et ses enquêtés a pu devenir génératrice de connaissances au travers d’une recherche menée dans un kibboutz en Israël. Il évoque tout d’abord la façon dont les relations se sont tissées avec les enquêtés, d’abord dans un rapport de proximité avant de glisser peu à peu vers une répulsion réciproque. Ce glissement, qui a résulté d’une prise de distance du chercheur à l’égard de la doxa militaro-sioniste a permis de situer l’objet d’étude dans le contexte historique et idéologique de la construction de l’État d’Israël et dans les rapports de force que cette construction a engendrés. Ainsi, l’évolution des relations avec les enquêtés a représenté un point crucial de l’enquête, en permettant d’élargir la focale à des réflexions qui ne se limitent pas exclusivement au kibboutz mais qui ont invité à considérer l’univers affectif et moral avec lequel le chercheur est amené à composer au cours de son travail de terrain.
Des vertus de l’inconfort :Enjeux méthodologiques et analytiques d’une enquête sur le mouvement musulman turc de Fethullah Gülen
Authors: Angey Gabrielle
Published: November 2019

À partir d’un retour réflexif sur l’enquête de terrain menée pendant le doctorat sur les expériences croisées du mouvement musulman turc de Fethullah Gülen entre la Turquie et l’Afrique subsaharienne, j’expose de manière processuelle les apports analytiques d’un parcours méthodologique inconfortable. L’objectivation du « cas implicant » de ma présence sur le terrain révèle les logiques institutionnelles d’un groupe religieux transnational fondé sur des formes d’opacité organisées.