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Elevación del piso del seno maxilar con técnica transcrestal.

SALVADOR REYES FERNANDEZ NORMA SAMANTA ROMERO CASTRO NATALIA HERNANDEZ TREVIÑO DANIEL SANDOVAL GUEVARA XENIA TERESA COBOS CRUZ (2023, [Artículo])

Introduction: the elevation of the transcrestal floor of the maxillary sinus consists of the vertical reconstruction of the atrophic alveolar ridge in an apical direction, with which it is possible to place the correct number and length of oral implants. Objective: to describe the procedure of a case of transcrestal maxillary sinus floor elevation with the placement of three dental implants. Clinical case: 62 year old female patient with missing teeth 16, 25 and 26. Treatment: three implants were placed to replace the missing teeth. Due to the decrease in height of the remaining alveolar ridge due to pneumatization of the maxillary sinuses, elevation of the sinus floor was planned with the transcrestal Summers¿s technique and placement of graft material. Results: by means of the grafts, sufficient height was achieved for the correct stability of the implants, each área had an average gain of 3 mm in bone height, with which length was obtained to give the implants adequate primary stability. Conclusion: sinus floor elevation with a transcrestal approach is a good alternative for rehabilitation with implants in the posterior edentulous sector, associated with pneumatization of the maxillary sinuses.

Elevation of the floor of the maxillary sinus Transcrestal technique Implants Graft Bone height MEDICINA Y CIENCIAS DE LA SALUD CIENCIAS MÉDICAS CIRUGÍA ORTODONCIA-ESTOMATOLOGÍA

Infant population’s death causes in Ciudad Juarez, 1953-1954

Guadalupe Santiago Quijada (2022, [Artículo, Artículo])

This article presents a study about the causes of death of the child population in Ciudad Juarez, at the beginning of the second half of the 20th century. In this document, emphasis has been placed on investigating the government response, on the activities carried out by local health institutions to deal with the diseases and prevent the number of infant deaths from continuing to increase; and in a particular way, in the actions of society to reduce suffering and protect children. Regarding the sources of information that were used, the data registered in the death books of 1953 and 1954 that are in the Civil Registry of Ciudad Juarez were explored and quantified. Also, the newspaper El Fronterizo and various bibliography were reviewed to establish the urban historical context in which this tragedy occurred.

Ciudad Juárez, salud, enfermedades, mortalidad infantil HUMANIDADES Y CIENCIAS DE LA CONDUCTA HUMANIDADES Y CIENCIAS DE LA CONDUCTA Ciudad Juarez demographic history diseases infant mortality

Potential of Omics to control diseases and pests in the Coconut tree

MIGUEL ALONSO TZEC SIMA Jean Wildort Félix María Inés Granados Alegría Mónica Aparicio Ortiz Dilery Juarez Monroy Damian Mayo Sarai Vivas-Lopez Rufino Gómez-Tah Blondy Beatriz Canto Canché Maxim Berezovski Ignacio Rodrigo Islas Flores (2022, [Artículo])

The coconut palm (Cocos nucifera L.) is a common crop in pantropical areas facing various challenges, one of them being the control of diseases and pests. Diseases such as bud rot caused by Phytophthora palmivora, lethal yellowing caused by phytoplasmas of the types 16SrIV-A, 16SrIV-D or 16SrIV-E, among others, and pests like the coconut palm weevil, Rhynchophorus vulneratus (Coleoptera: Curculionidae), and the horned beetle, Oryctes rhinocerus (Coleoptera: Scarabaeidae), are controlled by applying pesticides, pheromones and cultural control. These practices do not guarantee eradication since some causal agents have become resistant or are imbedded in infected tissues making them difficult to eradicate. This review condenses the current genomics, transcriptomics, proteomics and metabolomics studies which are being conducted with the aim of understanding the pathosystems associated with the coconut palm, highlighting the findings generated by omics studies that may become future targets for the control of diseases and pests in the coconut crop. © 2022 by the authors.

COCOS NUCIFERA L. OMICS PESTS INSECTS DISEASES PATHOGENS BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA MOLECULAR BIOLOGÍA MOLECULAR DE PLANTAS BIOLOGÍA MOLECULAR DE PLANTAS

Development and demographic parameters of Fall Armyworm (Spodoptera frugiperda J.E. Smith) when feeding on rice (Oryza sativa)

Timothy Joseph Krupnik (2023, [Artículo])

Fall Armyworm (FAW), Spodoptera frugiperda (Lepidoptera: Noctuidae), native to the Americas, is a polyphagous insect pest feeding on more than 350 plant species. We studied the developmental and demographic parameters of the maize (Zea mays) strain of FAW on rice (Oryza sativa), and compared the results with its prime host, maize. The developmental period from egg to adult among rice varieties did not differ significantly; however, it did differ significantly between rice and maize, as feeding on rice rather than maize extends development duration of FAW larvae by 15.15%. FAW larvae collected and reared on maize were found to be of significantly higher weight than those reared on rice at two sequential dates of their development; pupal weight however was observed as statistically similar between these two host crops. Regardless of the host, female adults always emerged before males; in maize, female FAW appeared 3.36 days earlier than males. Females derived from rice had longer pre-oviposition periods and shorter oviposition ones than those derived from maize. In rice and maize, the age-specific fecundity rate (mx) peaked at 40 days and 33 days, respectively. When the Fall Armyworm consumed maize instead of rice, there was an increase in the reproduction rate (R 0), the intrinsic rate of natural increase (rm), and the finite rate of increase (λ). For instance, when FAW fed on rice, the rm value was 0.121, whereas it rose to 0.173 when FAW fed on maize. Feeding on rice instead of maize resulted in significantly longer mean length of generation (tG) and doubling time (tD) for the fall armyworm (FAW). This suggests that it took a longer time for the FAW population to double when it was fed rice under controlled greenhouse conditions. In summary, our research suggests that FAW can survive and complete its life cycle on rice plants and on multiple varieties of rice in Bangladesh. However, field verification is necessary before drawing strong conclusions as to the risk posed by FAW in rice. This requires additional studies of FAW and associated insect community dynamics under non-controlled conditions and in the context of multi-species interactions in Asian rice fields.

Invasive Pest Life Table Parameters CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA HOST PLANTS PESTS RICE SPODOPTERA FRUGIPERDA FALL ARMYWORMS