Decolonizar la investigación sobre migraciones : apuntes desde una etnografía colaborativa

En este artículo analizamos los significados asumidos por la idea de "(in)migración(es)" y la categoría de "(in)migrante(s)" en los contextos sociales, políticos y académicos contemporáneos. Resaltando su estrecha relación con el pensamiento de Estado y la colonialidad del poder/saber, nos preguntamos por otros posibles acercamientos a la movilidad humana. Discutimos la etnografía colaborativa, entendida como una metodología decolonial que rechaza las representaciones pasivizantes hegemónicas y aspira a visibilizar los procesos de subjetivación política de las personas junto a las que se investiga. Aportando ejemplos de nuestra propia investigación colaborativa junto a Stop Desahucios-Granada 15M, ilustramos cómo la idea de (in)migración(es) y la categoría "(in)migrante(s)" se han materializado en nuestro contexto, que se encuentra definido por el activismo político y no había sido previamente alterizado como "migratorio". Concluimos resaltando la ambivalencia implícita en estas dos expresiones y reflexionamos sobre los pros y los contras implícitos en su uso.In this paper we analyze the meaning of "immigration" and "immigrant" within contemporary social, political and academic contexts. We emphasize their narrow relation with State thought and the coloniality of power/knowledge and search for alternative approaches to human mobility. With this aim, we discuss collaborative ethnography as a decolonial methodology addressed to visibilize the political subjectivation processes of the people we research with. Drawing on examples from our own collaborative research with Stop Evictions-Granada 15M, we show how the idea of "immigration" and the category "immigrants" have come into being within our field, a space of political activism which had not been previously constructed as a "migratory context". We conclude underlining the ambivalence implicit in the two aforementioned concepts and discuss the pros and cons of using them

Imaging versus no imaging for low back pain: a systematic review, measuring costs, healthcare utilization and absence from work

Item does not contain fulltextPURPOSE: Imaging (X-ray, CT and MRI) provides no health benefits for low back pain (LBP) patients and is not recommended in clinical practice guidelines. Whether imaging leads to increased costs, healthcare utilization or absence from work is unclear. Therefore, this study systematically reviews if imaging in patients with LBP leads to an increase in these outcomes. METHODS: We searched PubMed, CINAHL, EMBASE, Cochrane Library and Web of Science until October 2017 for randomized controlled trials (RCTs) and observational studies (OSs), comparing imaging versus no imaging on targeted outcomes. Data extraction and risk of bias assessment was performed independently by two reviewers. The quality of the body of evidence was determined using GRADE methodology. RESULTS: Moderate-quality evidence (1 RCT; n = 421) supports that direct costs increase for patients undergoing X-ray. Low-quality evidence (3 OSs; n = 9535) supports that early MRI may lead to an increase in costs. There is moderate-quality evidence (1 RCT, 2 OSs; n = 3897) that performing MRI or imaging (MRI or CT) is associated with an increase in healthcare utilization (e.g., future injections, surgery, medication, etc.). There is low-quality evidence (5 OSs; n = 15,493) that performing X-ray or MRI is associated with an increase in healthcare utilization. Moderate-quality evidence (2 RCTs; n = 667) showed no significant differences between X-ray or MRI groups compared with non-imaging groups on absence from work. However, low-quality evidence (2 Oss; n = 7765) did show significantly greater mean absence from work in the MRI groups in comparison with the non-imaging groups. CONCLUSIONS: Imaging in LBP may be associated with higher medical costs, increased healthcare utilization and more absence from work. These slides can be retrieved under Electronic Supplementary Material

Three-dimensional kinematics of the cervical spine using an electromagnetic tracking device. Differences between healthy subjects and subjects with nonspecific neck pain and the effect of age

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Interchromosomal repeat array interactions between chromosomes 4 and 10: a model for subtelomeric plasticity.

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Interchromosomal repeat array interactions between chromosomes 4 and 10: a model for subtelomeric plasticity.

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Hypomethylation of D4Z4 in 4q-linked and non-4q-linked facioscapulohumeral muscular dystrophy.

Item does not contain fulltextThe autosomal dominant myopathy facioscapulohumeral muscular dystrophy (FSHD1, OMIM 158900) is caused by contraction of the D4Z4 repeat array on 4qter. We show that this contraction causes marked hypomethylation of the contracted D4Z4 allele in individuals with FSHD1. Individuals with phenotypic FSHD1, who are clinically identical to FSHD1 but have an unaltered D4Z4, also have hypomethylation of D4Z4. These results strongly suggest that hypomethylation of D4Z4 is a key event in the cascade of epigenetic events causing FSHD1

Possible phenotypic dosage effect in patients compound heterozygous for FSHD-sized 4q35 alleles.

Item does not contain fulltextOBJECTIVE: Autosomal dominant facioscapulohumeral muscular dystrophy (FSHD) is associated with a contraction of the D4Z4 repeat array on chromosome 4. So far, homozygosity or compound heterozygosity for FSHD alleles has not been described, and it has been debated whether the absence of such subjects is because of the rarity or the lethality of the disorder. METHODS: Two unrelated families in which the probands are compound heterozygous for two FSHD-sized alleles were studied. Clinical examination, pulsed-field gel electrophoresis (PFGE) studies of DNA with probes proximal and distal to D4Z4, and cytogenetic analysis of metaphase chromosomes by FISH were performed. RESULTS: Complementary molecular and cytogenetic approaches confirmed the chromosome 4qA origin of all FSHD-sized repeat arrays that segregate in the families. CONCLUSIONS: Heterozygosity for FSHD-sized alleles is compatible with life in men and women. A possible dosage effect was observed in both probands in whom each 4qA allele contributed to the FSHD phenotype. Because at least one of the FSHD alleles in both families showed an unusual low penetrance, the authors propose that susceptibility for FSHD is partly determined by intrinsic properties of the disease allele other than the residual D4Z4 repeat size alone

The Inter-Relationship of Platelets with Interleukin-1 beta-Mediated Inflammation in Humans

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