Juan Carlos Bohorquez

• Universidad de Cádiz

The complex permittivity for four processing stages of coffee: coffee cherries, pulped coffee, green coffee, and roasted coffee was obtained and divided into two groups. The wet group is constituted by cherry and pulped coffee, and the dry group by green and roasted coffee. The wet group presented a dielectric constant between 64 and 43, and a loss...

This paper presents the results obtained by multiphysics (electromagnetic and thermal) numerical simulations which show the influence of the size in two different spheres that are irradiated by an electromagnetic plane wave. Each sphere is constituted by a series of concentric layers that emulate the tissues in the head. A 10 mW/cm² plan...

This paper presents an original algorithm complementary to the synthesis process of filters with dual behavior resonators (DBRs). This algorithm allows including in the synthesis of such filters technological and topological aspects that permit to obtain a specified 3dB-bandwidth, departing from a Tchebyscheff response with the desired ripple. The...

A new cavity-backed antenna compatible with planar technology is designed, manufactured, and measured. The original design consists of a slotted cavity fed by a microstrip line. This allows the implementation of the feeding line and the cavity on a single substrate, compatible with a standard printed circuit board (PCB) or low-temperature cofired c...

This is a study to define the profile of chemokine receptors expressed on isolated infiltrating lymphocytes in human abdominal aortic aneurysms (AAAs), and to examine their role in lymphoid recruitment. AAA T-lymphocytes were CXCR4-positive, CCR7-negative and partially CXCR3 and CCR5-positive. Functionally, AAA T-cells were proinflammatory effector...

Dense granules, a type of platelet secretory organelle, are known to accumulate high concentrations of small molecules such as calcium, adenine nucleotides, serotonin, pyrophosphate, and polyphosphate. Protein composition of these granules has been obscure, however. In this paper, we use proteomics techniques to describe, for the first time, the so...

Objetivos. Aportar los conceptos básicos sobre la estructura y la función de las metaloproteinasas de matriz (MMP) y exponer de forma resumida la información bibliográfica actualizada sobre su implicación en las enfermedades vasculares periféricas. Desarrollo. La matriz extracelular desempeña un papel esencial en el mantenimiento de la integridad d...

A new reconfigurable frequency cavity compatible with planar technology has been designed, manufactured and measured. An original tuning solution is proposed, based upon the insertion of vertical capacitive posts integrated within SIW cavities. One extremity of each post is connected to a floating metallic ring, located on the substrate supporting...

Aims. To report on the fundamental concepts concerning the structure and function of metalloproteases and to offer a brief summary of the latest data from the literature about the involvement of matrix metalloproteases (MMPs) in peripheral vascular diseases. Development. The extracellular matrix plays an essential role in maintaining the integrity...

Determinar si el valor plasmatico preoperatorio de diversos marcadores biologicos de inflamacion .proteina C reactiva (PCR), leucocitos y fibrinogeno. se asocia a la mortalidad de los pacientes con rotura de aneurisma de aorta bdominal (AAA). Pacientes y metodos. Estudio prospectivo de 37 pacientes intervenidos uirurgicamente de AAA roto. Se extraj...

Introducción. La neuropatía, la isquemia y la infección son los tres factores directamente relacionados con la aparición y desarrollo de las úlceras en los pacientes diabéticos. La infección definida mediante parámetros clínicos y apoyada por cultivos microbiológicos es el principal factor pronóstico de la lesión. Objetivo. Estudiar la etiología in...

Introduction. Neuropathy, ischaemia and infection are the three factors directly related to the appearance and development of ulcers in diabetic patients. Infection defined by means of clinical parameters and backed up by microbiological cultures is the main prognostic factor of the lesion. Aims. To study the infectious causation of ulcers in diabe...

Aim. To determine whether the preoperative plasma values of several biological markers of inflammation -C-reactive protein (CRP), leukocytes and fibrinogen- are linked with the mortality of patients with a ruptured abdominal aortic aneurysm (AAA). Patients and methods. We performed a prospective study of 37 patients who had undergone surgery to tre...

Cellular infiltrates consisting mainly of lymphocytes are commonly present in the arterial wall in abdominal aortic aneurysm (AAA). However, despite this, the precise nature of these populations has to date not been described in detail. The aim of this study was to perform an exhaustive phenotypic characterisation of the infiltrating lymphocytes in...

Retroaortic left renal vein is a relatively uncommon venous anomaly. Its clinical importance is unclear, but diagnostic and surgically hazardous implications make it a condition that must be kept in mind. Computed tomography (CT) scanning has been largely advocated as the most accurate imaging method in assessing this anomaly. Digital subtraction a...

Objective To report a case of neonatal renal vein thrombosis diagnosed by duplex scan and treated successfully with intravenous heparin. Design Case report. Setting Angiology and Vascular Surgery Unit, Hospital Universitario Puerta del Mar, Cádiz, Spain. Interventions Conservative treatment with short-term intravenous heparin. Conclusions Colou...

Objective: To report a case of neonatal renal vein thrombosis diagnosed by duplex scan and treated successfully with intravenous heparin. Design: Case report. Setting: Angiology and Vascular Surgery Unit, Hospital Universitario Puerta del Mar, Cadiz, Spain. Interventions: Conservative treatment with short-term intravenous heparin. Conclusions: Colo...

Hypertrophic osteoarthropathy (HOA) is a clinical and radiologic syndrome that consists of periosteal new bone formation, synovitis, and digital clubbing. Secondary HOA has been reported confined to one or two extremities that are perfused by Dacron grafts that have become infected. Herein we include a report of a vascular graft infection that shar...

Objective To report two cases of inferior vena cava (IVC) and iliac vein thrombosis secondary to expansive and ruptured abdominal aortic aneurysms. Design Case report. Setting Angiology and Vascular Surgery Unit, Hospital Universitario Puerta del Mar, Cádiz, Spain. Patients Patients with clinical and radiological evidence of IVC and iliac vein t...