La morphologie nominale et les segments flottants en kabyle

Le fait que des objets phonologiques puissent être présents dans l’entrée lexicale de la racine mais absents de la réalisation de surface est rendu possible par la configuration restreinte de l’espace syllabique : la structure n’offre pas assez d’espace à tous les éléments mélodiques pour s’associer et se réaliser au niveau de la surface. Le pluriel externe kabyle présente des éléments mélodiques qui ne sont pas présents au singulier, par exemple iddəw ~ iddaw-n "singe", iccəw ~ acciw-n "corne", izəm ~ izmaw-n "lion" (-n est le suffixe du pluriel). Comme ces éléments ne peuvent être prédits, ils doivent appartenir à la racine et ils sont absents au singulier en raison de la restriction de l’espace syllabique, le gabarit. Ma proposition est que la forme du singulier dans les noms kabyles peut être contrainte par la taille du gabarit, c’est-à-dire qu’en kabyle l’interprétation de la mélodie est contrainte par la structure syllabique.The fact that phonological objects may be present in the lexical entry of the root but absent from the surface realization is made possible by the restricted configuration of the syllabic space: the structure does not offer enough space for all the melodic elements to be associated and realized at the surface. The external plural in Kabyle presents melodic elements that are absent in the singular form, e.g. iddəw ~ iddaw-n "monkey", iccəw ~ acciw-n "horn", izəm ~ izmaw-n "lion" (-n is the suffix of the plural). Since these elements cannot be predicted, they must belong to the root and they are absent in the singular because of the restriction of the syllabic space, the template. My proposal is that the form of the singular in Kabyle nouns can be constrained by the size of the template, i.e. in Kabyle the interpretation of the melody is constrained by the syllabic structure

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

The evolving SARS-CoV-2 epidemic in Africa: Insights from rapidly expanding genomic surveillance

INTRODUCTION Investment in Africa over the past year with regard to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) sequencing has led to a massive increase in the number of sequences, which, to date, exceeds 100,000 sequences generated to track the pandemic on the continent. These sequences have profoundly affected how public health officials in Africa have navigated the COVID-19 pandemic. RATIONALE We demonstrate how the first 100,000 SARS-CoV-2 sequences from Africa have helped monitor the epidemic on the continent, how genomic surveillance expanded over the course of the pandemic, and how we adapted our sequencing methods to deal with an evolving virus. Finally, we also examine how viral lineages have spread across the continent in a phylogeographic framework to gain insights into the underlying temporal and spatial transmission dynamics for several variants of concern (VOCs). RESULTS Our results indicate that the number of countries in Africa that can sequence the virus within their own borders is growing and that this is coupled with a shorter turnaround time from the time of sampling to sequence submission. Ongoing evolution necessitated the continual updating of primer sets, and, as a result, eight primer sets were designed in tandem with viral evolution and used to ensure effective sequencing of the virus. The pandemic unfolded through multiple waves of infection that were each driven by distinct genetic lineages, with B.1-like ancestral strains associated with the first pandemic wave of infections in 2020. Successive waves on the continent were fueled by different VOCs, with Alpha and Beta cocirculating in distinct spatial patterns during the second wave and Delta and Omicron affecting the whole continent during the third and fourth waves, respectively. Phylogeographic reconstruction points toward distinct differences in viral importation and exportation patterns associated with the Alpha, Beta, Delta, and Omicron variants and subvariants, when considering both Africa versus the rest of the world and viral dissemination within the continent. Our epidemiological and phylogenetic inferences therefore underscore the heterogeneous nature of the pandemic on the continent and highlight key insights and challenges, for instance, recognizing the limitations of low testing proportions. We also highlight the early warning capacity that genomic surveillance in Africa has had for the rest of the world with the detection of new lineages and variants, the most recent being the characterization of various Omicron subvariants. CONCLUSION Sustained investment for diagnostics and genomic surveillance in Africa is needed as the virus continues to evolve. This is important not only to help combat SARS-CoV-2 on the continent but also because it can be used as a platform to help address the many emerging and reemerging infectious disease threats in Africa. In particular, capacity building for local sequencing within countries or within the continent should be prioritized because this is generally associated with shorter turnaround times, providing the most benefit to local public health authorities tasked with pandemic response and mitigation and allowing for the fastest reaction to localized outbreaks. These investments are crucial for pandemic preparedness and response and will serve the health of the continent well into the 21st century

About the nature of the variation in Kabyle diatopic : study of the formation of singular and plural nouns

Cette thèse s’articule autour de la formation des noms et de la variation morpho-Phonologique dans les dialectes kabyles. L’analyse des données de mon propre dialecte AEH issues du dictionnaire de Dallet (1982) a montré que1. les éléments qui apparaissent au pluriel mais qui sont absents au singulier sont imprédictibles et ils font donc partie des ingrédients lexicaux de la racine ;2. à partir du dialecte d'AEH, j'ai dégagé la généralisation selon laquelle le pluriel a une taille constante de 5 unités CV. Il s'est avéré par la suite que cela est vrai en réalité pour l’ensemble des dialectes kabyles. Cette généralisation est basée sur les enquêtes de terrain que j'ai menées dans la région de Kabylie. Je propose aussi une analyse de la voyelle initiale en kabyle (et en berbère) qui prend en compte le scénario diachronique de Vycichl (1957) et Brugnatelli (1997) selon lequel en proto-Berbère il y a eu un figement d’anciens démonstratifs avec les noms. J’ai proposé que l’alternance a- (EL) vs w/u- (EA) est allomorphique. Par le même mouvement, j'ai affiné l’analyse de Bendjaballah (2011) en éliminant le CV qui épèle K (le cas). Dans mon analyse, la VII arrive avec son propre CV.Le cadre général de mon analyse est défini par la situation typologique du berbère : il s'agit d'une langue concaténative, puisqu'on ne peut attacher aucune information sémantique ou morpho-Syntaxique aux voyelles ni au gabarit ; la démonstration de la taille constante du pluriel établit par ailleurs que le berbère est gabaritique, i.e. que et les consonnes et les voyelles sont stockées ensemble dans la racine (vocalisée) et le gabarit sont stockés indépendamment dans le lexique. Si donc en sémitique est qu’en sémitique les ingrédients lexicaux d'un mot sont au nombre de trois (racine consonantique, voyelle, gabarit), en kabyle il y en a seulement deux (racine (vocalisée) et gabarit). Dans cet environnement gabaritique mais parfaitement concaténatif, la thèse développe une théorie de la variation diatopique dont les locus sont au nombre de deux : il s’agit d'une part de l’association d’une racine donnée à des gabarits différents dans différents dialectes, d'autre part de racines mélodiquement identiques mais dont des segments peuvent porter à travers les dialectes des instructions lexicales différentes quant à leur comportement lors de l'association. Etant donné le fait que les travaux sur la variation diatopique en afro-Asiatique sont clairsemés, il sera intéressant de voir si la variation dans d'autres langues fonctionne de la même façon.La façon dont la variation diatopique est gérée dans cette thèse se rapporte à la conjecture Borer-Chomsky que, suivant Oostendorp (2013), j’applique à la phonologie. Dans le cas du kabyle, la variation diatopique des singuliers n'implique pas des mécanismes différents de formation du pluriel (computation), mais des marquages lexicaux des racines à faire leur singulier dans telle ou telle classe. Enfin, j’espère que la thèse trouvera sa place dans le débat sur le statut de la racine et du gabarit dans le lexique mental des langues afro-Asiatiques : l'approche classique accorde un statut lexical, grammatical et cognitif indépendant à la racine et au gabarit, alors que la stem-Based morphology soutient que les deux unités cohabitent dans le lexique. Si la variation diatopique en kabyle fonctionne de la manière décrite, i.e. par l’association d’une racine donnée à des gabarits singuliers distincts à travers les dialectes, la racine et le gabarit représentent nécessairement deux unités lexicales indépendantes.This thesis deals with noun formation and morpho-Phonological variation in Kabyle dialects. The analysis of the data in my own dialecte AEH from Dallet (1982) dictionary showed that1) items that appear in the plural but are absent in the singular are unpredictable and they are part of the lexical root ingredients.2) from the dialect of AEH, I've proposed the generalization that the plural has a constant size 5 CV units. It turned out later that this is true in fact for all Kabyle dialects. This generalization is based on field research that I conducted in the Kabylie region.I also proposed an analysis of the initial vowel in Kabyle (and Berber) which takes into account the diachronic scenario of Vycichl (1957) et Brugnatelli (1997) that in Proto-Berber there has been a congealing former demonstrative with names. I suggested that alternating a-(EL) vs w/u (EA) is allomorphic. By the same movement, I refined analysis Bendjaballah (2011) by removing the CV that spells out K (the case). In my analysis, VII arrives with his own CV. The general framework of my analysis is defined by the Berber typological situation: it is a concatenative language, since we cannot attach any semantic or morpho-Syntactic information to vowels or template; demonstration of constant size plural also establishes that Berber is templatic, i.e. and that consonants and vowels are stored together in the root (vocalized) and the template are stored independently in the lexicon. If so Semitic lexical ingredients of a word are three in number (consonant root vowel template), in Kabyle there are only two (root (vocalized) and template).In this templatic but perfectly concatenative environment, the thesis develops a theory of diatopic variation whose locus are two in number: combination of a given root to different templates in different dialects in one hand, and in the other hand, roots melodically identical but whose segments can carry of across the dialects different lexical instructions about their behavior at time of association. Given the fact that work on diatopic variation in Afro-Asiatic are sparse, it will be interesting to see if the variation in other languages works in the same way.How diatopic variation is handled in this thesis relates to the Borer-Chomsky Conjecture that, according Oostendorp (2013), I apply to phonology. In the case of Kabyle, diatopic variation of singulars does not imply different mechanisms of plural formation (computation), but lexical markings to their unique roots in a particular class.Finally, I hope that the thesis will find its place in the debate on the status of the root and template in the mental lexicon of Afro-Asiatic languages: the classical approach gives an independent lexical, grammatical and cognitive status to the root and template, while the stem-Based morphology supports both units coexist in the lexicon. If diatopic variation in Kabyle works as described, i.e. by the association of a given root to a distinct singular templates across dialects, the root and template necessarily represent two independent tokens

De la nature de la variation diatopique en kabyle : étude de la formation des singulier et pluriel nominaux

This thesis deals with noun formation and morpho-Phonological variation in Kabyle dialects. The analysis of the data in my own dialecte AEH from Dallet (1982) dictionary showed that1)items that appear in the plural but are absent in the singular are unpredictable and they are part of the lexical root ingredients.2)from the dialect of AEH, I've proposed the generalization that the plural has a constant size 5 CV units. It turned out later that this is true in fact for all Kabyle dialects. This generalization is based on field research that I conducted in the Kabylie region.I also proposed an analysis of the initial vowel in Kabyle (and Berber) which takes into account the diachronic scenario of Vycichl (1957) et Brugnatelli (1997) that in Proto-Berber there has been a congealing former demonstrative with names. I suggested that alternating a-(EL) vs w/u (EA) is allomorphic. By the same movement, I refined analysis Bendjaballah (2011) by removing the CV that spells out K (the case). In my analysis, VII arrives with his own CV. The general framework of my analysis is defined by the Berber typological situation: it is a concatenative language, since we cannot attach any semantic or morpho-Syntactic information to vowels or template; demonstration of constant size plural also establishes that Berber is templatic, i.e. and that consonants and vowels are stored together in the root (vocalized) and the template are stored independently in the lexicon. If so Semitic lexical ingredients of a word are three in number (consonant root vowel template), in Kabyle there are only two (root (vocalized) and template).In this templatic but perfectly concatenative environment, the thesis develops a theory of diatopic variation whose locus are two in number: combination of a given root to different templates in different dialects in one hand, and in the other hand, roots melodically identical but whose segments can carry of across the dialects different lexical instructions about their behavior at time of association. Given the fact that work on diatopic variation in Afro-Asiatic are sparse, it will be interesting to see if the variation in other languages works in the same way.How diatopic variation is handled in this thesis relates to the Borer-Chomsky Conjecture that, according Oostendorp (2013), I apply to phonology. In the case of Kabyle, diatopic variation of singulars does not imply different mechanisms of plural formation (computation), but lexical markings to their unique roots in a particular class.Finally, I hope that the thesis will find its place in the debate on the status of the root and template in the mental lexicon of Afro-Asiatic languages: the classical approach gives an independent lexical, grammatical and cognitive status to the root and template, while the stem-Based morphology supports both units coexist in the lexicon. If diatopic variation in Kabyle works as described, i.e. by the association of a given root to a distinct singular templates across dialects, the root and template necessarily represent two independent tokens.Cette thèse s’articule autour de la formation des noms et de la variation morpho-Phonologique dans les dialectes kabyles. L’analyse des données de mon propre dialecte AEH issues du dictionnaire de Dallet (1982) a montré que1. les éléments qui apparaissent au pluriel mais qui sont absents au singulier sont imprédictibles et ils font donc partie des ingrédients lexicaux de la racine ;2. à partir du dialecte d'AEH, j'ai dégagé la généralisation selon laquelle le pluriel a une taille constante de 5 unités CV. Il s'est avéré par la suite que cela est vrai en réalité pour l’ensemble des dialectes kabyles. Cette généralisation est basée sur les enquêtes de terrain que j'ai menées dans la région de Kabylie. Je propose aussi une analyse de la voyelle initiale en kabyle (et en berbère) qui prend en compte le scénario diachronique de Vycichl (1957) et Brugnatelli (1997) selon lequel en proto-Berbère il y a eu un figement d’anciens démonstratifs avec les noms. J’ai proposé que l’alternance a- (EL) vs w/u- (EA) est allomorphique. Par le même mouvement, j'ai affiné l’analyse de Bendjaballah (2011) en éliminant le CV qui épèle K (le cas). Dans mon analyse, la VII arrive avec son propre CV.Le cadre général de mon analyse est défini par la situation typologique du berbère : il s'agit d'une langue concaténative, puisqu'on ne peut attacher aucune information sémantique ou morpho-Syntaxique aux voyelles ni au gabarit ; la démonstration de la taille constante du pluriel établit par ailleurs que le berbère est gabaritique, i.e. que et les consonnes et les voyelles sont stockées ensemble dans la racine (vocalisée) et le gabarit sont stockés indépendamment dans le lexique. Si donc en sémitique est qu’en sémitique les ingrédients lexicaux d'un mot sont au nombre de trois (racine consonantique, voyelle, gabarit), en kabyle il y en a seulement deux (racine (vocalisée) et gabarit). Dans cet environnement gabaritique mais parfaitement concaténatif, la thèse développe une théorie de la variation diatopique dont les locus sont au nombre de deux : il s’agit d'une part de l’association d’une racine donnée à des gabarits différents dans différents dialectes, d'autre part de racines mélodiquement identiques mais dont des segments peuvent porter à travers les dialectes des instructions lexicales différentes quant à leur comportement lors de l'association. Etant donné le fait que les travaux sur la variation diatopique en afro-Asiatique sont clairsemés, il sera intéressant de voir si la variation dans d'autres langues fonctionne de la même façon.La façon dont la variation diatopique est gérée dans cette thèse se rapporte à la conjecture Borer-Chomsky que, suivant Oostendorp (2013), j’applique à la phonologie. Dans le cas du kabyle, la variation diatopique des singuliers n'implique pas des mécanismes différents de formation du pluriel (computation), mais des marquages lexicaux des racines à faire leur singulier dans telle ou telle classe. Enfin, j’espère que la thèse trouvera sa place dans le débat sur le statut de la racine et du gabarit dans le lexique mental des langues afro-Asiatiques : l'approche classique accorde un statut lexical, grammatical et cognitif indépendant à la racine et au gabarit, alors que la stem-Based morphology soutient que les deux unités cohabitent dans le lexique. Si la variation diatopique en kabyle fonctionne de la manière décrite, i.e. par l’association d’une racine donnée à des gabarits singuliers distincts à travers les dialectes, la racine et le gabarit représentent nécessairement deux unités lexicales indépendantes

Association sous contrôle grammatical: Le cas du A du pluriel externe en Kabyle

In Kabyle Berber there are two types of plural: one is internal and the other is external. The internal plural is characterized by the fact that the quality of the vowels changes, whereby the last vowel is always A, e.g., azarәz ‘cord’ → izuraz ‘cords’. The external plural involves the suffixation of -n, e.g., iθβir ‘pigeon’ → iθβir-n ‘pigeons’. Kabyle plural presents some melodic items which are not present in the singular form (e.g., iðmәr ‘chest’ → iðmar-n ‘chests’, iðw ‘horn’ → iәiw-n ‘horns’, amәçsa ‘shepherd’ → imәçsaw-n ‘shepherds’). Since they cannot be predicted, these items must be a piece of the root’s lexical properties. For reasons to be determined, they do not appear in singular forms. It is shown that when a root of the external plural class bears an A that is not visible in the singular, this A is promoted to the surface in the plural form at any cost, i.e., even if damage on other items of the root is caused. As a consequence of the appearance of the A, the gemination of a consonant or the expression of a vowel may be suspended, e.g., azәqqur ‘log’ → izәγran ‘logs’. Yet, this A cannot be considered as a plural marker since it may well be absent from external plurals, e.g., argaz ‘man’ → irgaz-n ‘men’. Rather, it is an idiosyncratic property of the root, and the plural morpheme contains an explicit instruction for it to appear on the surface, involving, as it will be shown, a branching phenomenon. Thus, part of the plural morpheme consists in an instruction for a specific melodic item to branch