531 research outputs found

    Aproximaciones al análisis sobre graffiti y género en México.

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    Arriesgarse a salir de noche, entrar en zonas no autorizadas, correr rápido, tener habilidad para trepar, saltar; ensuciarse con el aerosol, enfrentar a la policía, sentir adrenalina o ausentarse de casa por varias horas durante la noche son condiciones básicas en la práctica del graffiti, expresión gráfica que actualmente vemos en las calles de casi todas las principales ciudades del mundo. Tales características al asociarse con lo masculino, hacen pensar que son hombres exclusivamente sus autores aunque existan indicios de participación femenina desde sus orígenes en el Nueva York de finales de la década de 1960. Mi investigación explora los significados del “ser mujer” en una práctica cultural que al ser naturalizada como masculina, invisibiliza la participación de las mujeres y dificulta su capacidad de producir objetos culturales válidos para el ámbito del graffiti en México. Presento en este artículo algunos hallazgos que invitan a pensar lo que hay detrás de un graffiti hecho por mujeres

    Analisis Penggunaan Modal Pinjaman dalam Mencapai Rentabilitas Ekonomis dan Rentabilitas Modal Sendiri pada KPRI Muria Kudus

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    Koperasi sebagai badan usaha memperoleh dana berasal dari anggota dan di luar anggota dan menghasilkan keuntungan atas hasil usahanya untuk digunakan lagi sebagai modal kerja. Guna meningkatkan SHU koperasi sangat tergantung dari besarnya perimbangan antara hutang jangka panjang dengan modal sendiri atau perimbangan penggunaan modal sendiri dan modal pinjaman oleh koperasi,dan pendapaian SHU diukur berdasarkan pencapaian rasio rentabilitas koperasi. Perumusan masalah dalam penelitian ini adalah (1) bagaimana perimbangan modal pinjaman dengan total modal KPRI Muria Kudus tahun 2009-2011? (2) bagaimana rentabilitas ekonomis dan rentabilitas modal sendiri pada KPRI Muria Kudus tahun 2009-2011? (3) bagaimana penggunaan modal pinjaman dalam peningkatan rentabilitas ekonomi dan rentabilitas modal sendiri pada KPRI Muria Kudus selama tahun 2009-2011? Tujuan sebagai berikut (1) menganalisis perimbangan modal pinjaman dengan total modal KPRI Muria Kudus tahun 2009-2011; (2) menganalisis rentabilitas ekonomis dan rentabilitas modal sendiri pada KPRI Muria Kudus tahun 2009-2011; (3) menganalisis penggunaan modal pinjaman dalam peningkatan rentabilitas ekonom dan rentabilitas modal sendiri pada KPRI Muria Kudus selama tahun 2009-2011. Jenis Variabel yang digunakan dalam penelitian ini adalah aktiva Usaha (Operating Assets), modal sendiri (Kekayaan Bersih), modal pinjaman, penjualan, SHU Usaha, SHU Bersih. Jenis Data berupa data kualitatif dan kuantitatif berupa Laporan, Keuangan berupa neraca dan laporan perhitungan SHU yang bersumber pada pada KPRI Muria Kudus. Metode pengumpulan data yang digunakan adalah dokumentasi. Pengolahan Data menggunakan editing, tabulating. Analisis Data yang digunakan meliputi Analisis Perimbangan Modal, Analisis Rentabilitas, Rentabilitas Ekonomis, Rentabilitas Modal Sendiri, Profit Margin, dan Turnover of Operating Asset (Tingkat Perputaran Aktiva Usaha). Berdasarkan hasil analisis, dihasilkan kesimpulan sebagai berikut ini. 1. Struktur modal KPRI Muria Kudus tahun 2009 sebesar 61,51% dengan perimbangan modal pinjaman Rp.2.096.138.920,00 (61,51%) dan modal sendiri sebesar Rp.1.311.832.131,00 (38,50%) dibandingkan dengan total modal koperasi sebesar Rp.3.407.971.051,00. Struktur modal KPRI Muria Kudus tahun 2010 sebesar 65,00% dengan perimbangan modal pinjaman Rp.2.762.965.766,00 (65,00%) dan modal sendiri sebesar Rp.1.487.591.159,00 (34,10%) dibandingkan dengan total modal koperasi sebesar Rp.4.250.556.925,00. Struktur modal KPRI Muria Kudus tahun 2011 sebesar 52,64% dengan perimbangan modal pinjaman Rp.1880.472.092,00 (52,64%) dan modal sendiri sebesar Rp.1.692.100.047,00 (47,36%) dibandingkan dengan total modal koperasi sebesar Rp.3.572.572.139,00. 2. Rasio rentabilitas ekonomis KPRI Muria Kudus 2009 sebesar 5,57%, tahun 2010 sebesar 4,69%, tahun 2011 sebesar 6,77%. Rentabilitas modal sendiri tahun 2009 sebesar 14,47%, tahun 2010 sebesar 13,39%, tahun 2011 sebesar 14,28. Profit margin (PM) dan turnover of operating assets sebagai faktor penentu tingkat rentabilitas yang berhasil dicapai KPRI Muria Kudus pada tahun 2009 sebesar 23,69% (PM) dan 0,24 kali (TOA), pada tahun 2010 sebesar 24,38% (PM) dan 0,19 kali (TOA), dan pada tahun 2011 sebesar 25,43% (PM) dan 0,27 kali (TOA). 3. Penggunaan tambahan modal pinjaman, terutama berupa hutang jangka panjang ini memberikan sumbangan yang positif terhadap kegiatan usaha koperasi, karena dengan adanya tambahan modal pinjaman tersebut akan dapat meningkatkan rentabilitas ekonomis dan rentabilitas modal sendiri

    Modeling superimposed preeclampsia using Ang II (Angiotensin II) infusion in pregnant stroke-prone spontaneously hypertensive rats

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    Hypertensive disorders of pregnancy are the second leading cause of maternal deaths worldwide. Superimposed preeclampsia is an increasingly common problem and often associated with impaired placental perfusion. Understanding the underlying mechanisms and developing treatment options are crucial. The pregnant stroke-prone spontaneously hypertensive rat has impaired uteroplacental blood flow and abnormal uterine artery remodeling. We used Ang II (angiotensin II) infusion in pregnant stroke-prone spontaneously hypertensive rats to mimic the increased cardiovascular stress associated with superimposed preeclampsia and examine the impact on the maternal cardiovascular system and fetal development. Continuous infusion of Ang II at 500 or 1000 ng/kg per minute was administered from gestational day 10.5 until term. Radiotelemetry and echocardiography were used to monitor hemodynamic and cardiovascular changes, and urine was collected prepregnancy and throughout gestation. Uterine artery myography assessed uteroplacental vascular function and structure. Fetal measurements were made at gestational day 18.5, and placentas were collected for histological and gene expression analyses. The 1000 ng/kg per minute Ang II treatment significantly increased blood pressure (P<0.01), reduced cardiac output (P<0.05), and reduced diameter and increased stiffness of the uterine arteries (P<0.01) during pregnancy. The albumin:creatinine ratio was increased in both Ang II treatment groups (P<0.05; P<0.0001). The 1000 ng/kg per minute–treated fetuses were significantly smaller than vehicle treatment (P<0.001). Placental expression of Ang II receptors was increased in the junctional zone in 1000 ng/kg per minute Ang II–treated groups (P<0.05), with this zone showing depletion of glycogen content and structural abnormalities. Ang II infusion in pregnant stroke-prone spontaneously hypertensive rats mirrors hemodynamic, cardiac, and urinary profiles observed in preeclamptic women, with evidence of impaired fetal growth

    Optimising Outcomes of Human-Agent Collaboration using Trust Calibration

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    As collaborative agents are implemented within everyday environments and the workforce, user trust in these agents becomes critical to consider. Trust affects user decision making, rendering it an essential component to consider when designing for successful Human-Agent Collaboration (HAC). The purpose of this work is to investigate the relationship between user trust and decision making with the overall aim of providing a trust calibration methodology to achieve the goals and optimise the outcomes of HAC. Recommender systems are used as a testbed for investigation, offering insight on human collaboration with dyadic decision domains. Four studies are conducted and include in-person, online, and simulation experiments. The first study provides evidence of a relationship between user perception of a collaborative agent and trust. Outcomes of the second study demonstrate that initial trust can be used to predict task outcome during HAC, with Signal Detection Theory (SDT) introduced as a method to interpret user decision making in-task. The third study provides evidence to suggest that the implementation of different features within a single agent's interface influences user perception and trust, subsequently impacting outcomes of HAC. Finally, a computational trust calibration methodology harnessing a Partially Observable Markov Decision Process (POMDP) model and SDT is presented and assessed, providing an improved understanding of the mechanisms governing user trust and its relationship with decision making and collaborative task performance during HAC. The contributions from this work address important gaps within the HAC literature. The implications of the proposed methodology and its application to alternative domains are identified and discussed

    Effekten av subsidierte billettpriser på generaliserte reisekostnader og etterspørselen i kollektivtransporten

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    Denne studien undersøker bruken av dynamiske prissettingsstrategier som et verktøy for å optimalisere utnyttelsen av kollektivtransport, og vurderer hvordan disse strategiene kan påvirke brukeropplevelsen. Ved bruk av en transportmodell (GK-modellen) kvantifiseres effekten av forskjellige subsidier på forventet etterspørsel etter kollektivtransport. Fem norske byområder, alle med unike demografiske-, infrastrukturelle- og transporttilbudsegenskaper, er valgt for denne analysen. Resultatene viser at både monetære og ikke-monetære kostnader som reisetid, sitteplasser, ventetid, bytter og gangtid, spiller en rolle i trafikantenes beslutninger. Disse elementene utgjør de generaliserte kostnadene og gir en bredere forståelse av hva som styrer trafikantenes transportvalg. Både nasjonale og lokale myndigheter i Norge har målsetninger om å øke bruken av kollektivtransport på bekostning av privatbil. Ambisjonene er nedfelt i Nasjonal Transportplan (NTP) og i regionale planer. For å forstå hvordan disse målsettingene kan oppnås, er det avgjørende med kunnskap om trafikantenes verdsetting av ulike forhold ved en reise (reiseelementer) og hvordan disse påvirker deres valg av transportalternativ. Funnene i studien viser at reduserte billettpriser gir lavere generaliserte kostnader for trafikantene og en forventet økning i etterspørselen etter kollektivtransport. Studien poengterer også behovet for en balansert tilnærming i forbindelse med beslutninger om subsidiering av kollektivtransport, der en tar hensyn til både brukernes preferanser og de samfunnsmessige konsekvensene av ulike transportpolitiske tiltak.MasteroppgaveECON391MASV-SØKPROF-SØ

    Inhibition of Trophoblast-Induced Spiral Artery Remodeling Reduces Placental Perfusion in Rat Pregnancy.

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    Rats harboring the human angiotensinogen and human renin genes develop preeclamptic features in pregnancy. The preeclamptic rats exhibit a deeper trophoblast invasion associated with a reduced resistance index by uterine Doppler. Doxycycline inhibits matrix metalloproteinase activity. We tested the hypothesis that matrix metalloproteinase inhibition reduces trophoblast invasion with subsequent changes in placental perfusion. Preeclamptic and pregnant control Sprague-Dawley rats were treated with doxycycline (30 mg/kg of body weight orally) from gestational day 12 until day 18. Placental perfusion was assessed using a micromarker contrast agent. The animals were euthanized on day 18 of pregnancy; biometric data were acquired, and trophoblast invasion was analyzed. Doxycycline resulted in intrauterine growth retardation and lighter placentas in both groups. Maternal body weight was not affected. As shown earlier, preeclamptic rats exhibited a deeper endovascular trophoblast invasion. However, doxycycline treatment reduced trophoblast invasion in the preeclamptic rats. The physiological spiral artery remodeling, as assessed by the deposition of fibrinoid and α-actin in the spiral artery contour, was significantly reduced by doxycycline. The vascularity index, as assessed by perfusion measurement of the placenta, was reduced after doxycycline treatment in preeclamptic rats. Thus, matrix metalloproteinase inhibition with doxycycline leads to reduced trophoblast invasion and associated reduced placental perfusion. These studies are the first to show that reducing trophoblast-induced vascular remodeling decreases subsequent placental perfusion. Our model allows the study of dysregulated trophoblast invasion and vascular remodeling in vivo to gain important insights into preeclampsia-related mechanisms

    Työkyvyn hallinta, seuranta ja varhainen tuki : Tutkimus sairausvakuutuslain vuoden 2011 muutoksen vaikutuksista työpaikkojen toimintaan

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    Tutkimuksessa selvitettiin vuoden 2011 sairausvakuutuslain muutoksen vaikutuksia työkyvyn hallintaan, seurantaan ja varhaiseen tukeen. Sairausvakuutuslakimuutos (L 1056/2010) edellyttää, että ”työpaikalla on yhteistyössä työterveyshuollon kanssa sovitut käytännöt siitä, miten työkyvyn hallintaa, seurantaa ja varhaista tukea toteutetaan työpaikan ja työterveyshuollon yhteisenä toimintana”, jotta työterveyshuollon korvausluokkaan 1 kuuluvista palveluista aiheutuvista kustannuksista korvattaisiin 50 %:n sijaan 60 %. Tutkimus toteutettiin kahdessa vaiheessa. Ensimmäisessä vaiheessa tehtiin laaja, sähköinen kyselytutkimus, johon osallistui yli 1 000 työnantajaa. Toisessa vaiheessa kartoitettiin syvemmin työnantajien hyviksi kokemia työkyvyn hallinnan käytäntöjä sekä kehitysehdotuksia case-tutkimuksen menetelmin suppeammasta 22 työnantajan otoksesta. Tämän lisäksi haastateltiin viittä eri työterveyshuollon palveluntuottajaa. Yli 85 % kyselytutkimukseen osallistuneista ilmoitti sopineensa toimintakäytännöistä tai laatineensa toimenpideohjelman yhteistyössä työterveyshuollon kanssa, mikä on noin 10 prosenttiyksikköä enemmän kuin ennen vuotta 2011. Erilaisille toimintamalleille on laadittu suunnitelmia melko kattavasti, mutta suunnitelmien seuranta ei ole vielä systemaattista: suunnitelmiin ei ole kytketty tavoitteita, ja seurattavat mittarit puolestaan eivät välttämättä kytkeydy suunnitelmiin. Suurin osa tutkimuksen toiseen vaiheeseen osallistuneista organisaatioista koki lakimuutoksen onnistuneeksi tavaksi edistää työkyvyn hallintaa. Osallistuneissa organisaatioissa työkyvyn hallinta ja varhainen tuki on tullut viime vuosina keskimäärin systemaattisemmaksi ja tavoitteellisemmaksi. Haastateltavat kuitenkin korostivat organisaation omaa toimintaa ja valmiutta tärkeämmäksi työkyvyn hallinnassa. Haastateltavat pitivät suunnitelmien tekoa melko hyödyllisenä työkyvyn hallinnan kannalta ja osasivat mainita esimerkkejä hyvistä työkykykäytännöistä. Tavoitteiden seuranta ja mittaaminen ei kuitenkaan ole niin systemaattista kuin laajat suunnitelmat antaisivat olettaa. Tavoitteet on suunnitelmissa ilmaistu tyypillisesti yleisellä tasolla, jolloin niitä on vaikea mitata tai asettaa tavoitetasoja. Työpaikoilla seurataankin tyypillisesti helposti mitattavia asioita, kuten työtapaturmia, sairauspoissaoloja ja ennenaikaisia eläköitymisiä. Nämä kuvastavat myöhäisen vaiheen ongelmia. Varhaisen vaiheen tunnistamista tai ennaltaehkäisyn toteutumista ei seurata, oletettavasti niiden vaikean mitattavuuden vuoksi, vaikka tavoitteista nämä teemat löytyvät. Työkyvyn hallinnan kehittäminen on monivaiheinen prosessi, joka lähteäkseen käyntiin edellyttää yleistä tietoisuutta työkyvyn hallinnasta sekä henkilöstöasioista vastaavien tahojen kykyä kommunikoida muun johdon kanssa työkyvyn hallinnan kustannusvaikuttavuudesta. Onnistunut työkyvyn hallinta edellyttää lisäksi, että johto on sitoutunut siihen, sisäinen viestintä esimiehille ja työntekijöille toimii ja että henkilöstö osallistuu prosessiin

    Effects of Circulating and Local Uteroplacental Angiotensin II in Rat Pregnancy.

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    The renin-angiotensin (Ang) system is important during placental development. Dysregulation of the renin-Ang system is important in preeclampsia (PE). Female rats transgenic for the human angiotensinogen gene crossed with males transgenic for the human renin gene develop the PE syndrome, whereas those of the opposite cross do not. We used this model to study the role of Ang II in trophoblast invasion, which is shallow in human PE but deeper in this model. We investigated the following groups: PE rats, opposite-cross rats, Ang II–infused rats (1000 ng/kg per day), and control rats. Ang II infusion increased only circulating Ang II levels (267.82 pg/mL), opposite cross influenced only uteroplacental Ang II (13.52 fmol/mg of protein), and PE increased both circulating (251.09 pg/mL) and uteroplacental (19.24 fmol/mg of protein) Ang II. Blood pressure and albuminuria occurred in the models with high circulating Ang II but not in the other models. Trophoblast invasion increased in PE and opposite-cross rats but not in Ang II–infused rats. Correspondingly, uterine artery resistance index increased in Ang II–infused rats but decreased in PE rats. We then studied human trophoblasts and villous explants from first-trimester pregnancies with time-lapse microscopy. Local Ang II dose-dependently increased migration by 75%, invasion by 58%, and motility by 282%. The data suggest that local tissue Ang II stimulates trophoblast invasion in vivo in the rat and in vitro in human cells, a hitherto fore unrecognized function. Conceivably, upregulation of tissue Ang II in the maternal part of the placenta represents an important growth factor for trophoblast invasion and migration

    MyBarrio: Emigdio Vasquez and Chicana/o Identity in Orange County

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    Emigdio Vasquez created artwork that challenged Orange County’s more prominent narrative of wealthy beachside neighborhoods. He painted the brown bodies and brown histories that defined our earliest communities and economy... Vasquez produced much of the local art history that Orange County should be known for and should protect. It is with this perspective that Chapman University is proud to present the exhibition, My Barrio: Emigdio Vasquez and Chicana/o Identity in Orange County, in conjunction with the Getty Pacific Standard Time: LA/LA initiative. We hope to initiate discourse not only about Vasquez’s prolific career, but also about the larger political impact of his decidedly Chicana/o-centered murals.https://digitalcommons.chapman.edu/university_art_exhibition_catalogs/1000/thumbnail.jp
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