An M-QAM Signal Modulation Recognition Algorithm in AWGN Channel

Computing the distinct features from input data, before the classification, is a part of complexity to the methods of Automatic Modulation Classification (AMC) which deals with modulation classification was a pattern recognition problem. Although the algorithms that focus on MultiLevel Quadrature Amplitude Modulation (M-QAM) which underneath different channel scenarios was well detailed. A search of the literature revealed indicates that few studies were done on the classification of high order M-QAM modulation schemes like128-QAM, 256-QAM, 512-QAM and1024-QAM. This work is focusing on the investigation of the powerful capability of the natural logarithmic properties and the possibility of extracting Higher-Order Cumulant's (HOC) features from input data received raw. The HOC signals were extracted under Additive White Gaussian Noise (AWGN) channel with four effective parameters which were defined to distinguished the types of modulation from the set; 4-QAM~1024-QAM. This approach makes the recognizer more intelligent and improves the success rate of classification. From simulation results, which was achieved under statistical models for noisy channels, manifest that recognized algorithm executes was recognizing in M-QAM, furthermore, most results were promising and showed that the logarithmic classifier works well over both AWGN and different fading channels, as well as it can achieve a reliable recognition rate even at a lower signal-to-noise ratio (less than zero), it can be considered as an Integrated Automatic Modulation Classification (AMC) system in order to identify high order of M-QAM signals that applied a unique logarithmic classifier, to represents higher versatility, hence it has a superior performance via all previous works in automatic modulation identification systemComment: 18 page

Architecture, Waste, and the Circular Economy

Waste is a modern global crisis. The world is drowning in an unprecedented amount of waste due to an increasing linear economy model that drive societies to consume more every day. It was reported that the average American citizen consume nearly 32 times more that the average Indian citizen. Companies, businesses, and corporates are continuously racing to deplete the planet’s natural resources in an astonishing rate. The design and construction sector alone is responsible for 30-40% of total solid waste worldwide, yet as architects, designers, and planners the waste problem is almost absent from the current discourse, both in practice and academia. Beyond sustainability, and if ideas such as the Dutch “CircularCity” become more appealing to architects, designers, and clients, the architectural education must adopt a transformational shift in the design thinking process to prepare a more responsible future architect. A shift from goal-oriented design to means-oriented design requires a shift in the design education, and the studio pedagogy. A transformation is needed in education, practice, research, and the related professions to address the current and emerging economic challenges more so post crises and pandemics, and through the built environment lens. It is time to define the role of architecture and design in the circular economy paradigm shift

Finding Perfection in Imperfection:: A Case Study of Adding Value by Design in Circular Economy

The United States' manufacturing industry generates approximately 7.6 billion tons of non- hazardous solid waste each year, a significant portion of which is either recyclable or reusable. Emerging ecosystem concepts such as cradle-to-cradle, design for disassembly, sustainable manufacturing, and most recently circular economy, are promoting the reusing or recycling of non-hazardous industrial waste. Empirical evidence suggests that there are significant economic, environmental, and social benefits to reusing industrial waste rather than recycling it. This paper presents, discusses and synthesis five speculative case studies in designing exterior building skins using standard automobile stamping by-products. The goal of the design experiment was to transform the linear approach in making building components, particularly, exterior metal skins and cladding systems, to a closed-loop approach, which ensures multi-dimensional economic, social, and environmental benefits. The results of the study are expected to aid in the reduction of energy used for extracting new materials and change the focus of the current waste management practices in the manufacturing industry from conventional recycling to creative reuse. The imperfection of the manufacturing industrial waste despite optimization measures, and the aging of zinc (patina) can both be transformed into novel unconventional architectural products

The maternal and neonatal outcomes of teenage pregnancy in a tertiary university hospital in Egypt

Aim: To highlight the grave complications among teenage mothers in Assiut Woman\u27s Health Hospital compared with the adult mothers. Methods: This study was a prospective case control study, conducted at the Labor Ward of Assiut Woman\u27s Health Hospital from 1st of January 2016 to 30th of June 2016. We included teenage pregnant women (13-19 completed years at delivery) as case and adult mothers (20-29 years) formed the control group. The primary outcome of the study is the rate of pregnancy complications among teenage mothers. Results: Obstetric complications were higher among the teenage mothers (p=0.0001). The teenage mothers had a higher proportion of normal vaginal delivery (p=0.005). The adult mothers reported a higher rate of elective cesarean section (CS) and operative vaginal delivery (p=0.0001, p=0.002; respectively). The infants of teenage mothers tended to have a lower birth weight and Apgar score than the adult ones. Conclusion: This study clearly states that the teenage mothers and their infants were more liable to complications during pregnancy and labor compared to adult mothers

The maternal and neonatal outcomes of teenage pregnancy in a tertiary university hospital in Egypt

Aim: To highlight the grave complications among teenage mothers in Assiut Woman\u27s Health Hospital compared with the adult mothers. Methods: This study was a prospective case control study, conducted at the Labor Ward of Assiut Woman\u27s Health Hospital from 1st of January 2016 to 30th of June 2016. We included teenage pregnant women (13-19 completed years at delivery) as case and adult mothers (20-29 years) formed the control group. The primary outcome of the study is the rate of pregnancy complications among teenage mothers. Results: Obstetric complications were higher among the teenage mothers (p=0.0001). The teenage mothers had a higher proportion of normal vaginal delivery (p=0.005). The adult mothers reported a higher rate of elective cesarean section (CS) and operative vaginal delivery (p=0.0001, p=0.002; respectively). The infants of teenage mothers tended to have a lower birth weight and Apgar score than the adult ones. Conclusion: This study clearly states that the teenage mothers and their infants were more liable to complications during pregnancy and labor compared to adult mothers

Urban Agriculture Case Studies in Central Texas: From the Ground to the Rooftop

Urban agriculture is practiced in various forms and scales. Practices range from the production of edibles in small to large lots or plazas to vertical production on walls and rooftops. Produce is grown in rural locations and sold at farmers markets in urban locations or grown onsite. Efforts to produce, maintain and sell products of urban agriculture involve many participants and leaders from multiple disciplines. This chapter highlights an introduction to several urban agriculture concepts and case study examples representing activities in Central Texas, home of the Texas A&M University. These case studies highlight a modular pavilion type farmers market and urban garden in downtown Bryan, Texas, designed and built by students and faculty collaborations. The farmers market is designed to be a flexible structure to accommodate current and future needs. A rooftop crop pilot study at Texas A&M on walls and roof deck highlights the varieties grown on top of a four-storey building. The diversity of activities taking place in Central Texas exhibits concepts transferable to many locations across the world. The challenges for these projects include adaptability of crops to the Central Texas climate, structural and community support and the presence of a viable market for locally grown produce

First Record of the Heart Sea Urchins Metalia persica (Coppard, 2008) from the Coral Reef Region, Marine Waters of Iraq

In the present article we report a first record of the heart sea urchin Metalia persica (Coppard, 2008) from the recently discovered coral reef in the coastal waters of Iraq. Four specimens of this echinoid were collected by diving during June 2014 and June 2015. This work is a part of larger programme on the identification and some other interesting observations of the macrobenthos living in the coral reef region of Iraq. Keywords: Sea urchin, Metalia persica, coral reef, Iraq, first record

Saudi SCD patients’ symptoms and quality of life relative to the number of ED visits

Background Individuals living with sickle cell disease (SCD) have significantly increased emergency department (ED) use compared to the general population. In Saudi Arabia, health care is free for all individuals and therefore has no bearing on increased ED visits. However, little is known about the relationship between quality of life (QoL) and frequency of acute care utilization in this patient population. Methods A cross-sectional study was conducted on 366 patients with SCD who attended the outpatient department at King Fahad Hospital, Hofuf, Saudi Arabia. Data were collected through self-administered surveys, which included: demographics, SCD-related ED visits, clinical issues, and QoL levels. We assessed the ED use by asking for the number of SCD-related ED visits within a 6-month period. Results The self-report survey of ED visits was completed by 308 SCD patients. The median number of SCD-related ED visits within a 6-month time period (IQR) was four (2-7 visits). According to the unadjusted negative binomial model, the rate of SCD-related ED visits increased by (46, 39.3, 40, and 53.5 %) for patients with fever, skin redness with itching, swelling, and blood transfusion, respectively. Poor QoL tends to increase the rate of SCD-related ED visits. Well education and poor general health positively influenced the rate of SCD-related ED visits. Well education tends to increase the rate of SCD-related ED visits by 50.2 %. The rate of SCD-related ED visits decreased by 1.4 % for every point increase in general health. Conclusion Saudi patients with sickle cell disease reported a wide range of SCD-related ED visits. It was estimated that six of 10 SCD patients had at least three ED visits within a 6-month period. Well education and poor general health resulted in an increase in the rate of SCD-related ED visits