Gravitational Study of the Hastings Salt Dome and Associated Faults in Brazoria and Galveston Counties,Texas

Salt domes are important geological structures because they are potential major hydrocarbon traps and have a profound effect on overlying strata in the subsurface. Over five hundred salt domes have been located on the United States Gulf Coast region, including the Hastings Salt Dome. Hastings Oil Field is located about 40.2 km (25 miles) southeast of Houston, Texas. The Hasting oil field was discovered in 1934 and it was considered the largest oil reserve on the Gulf Coast. Its peak production of 75,000 BOPD (barrels of oil per day) was recorded in 1977 and it had a cumulative production of 582 MMBO (million barrels of Oil) as at February 2011. Gravity surveying is a geophysical method of investigating subsurface features based on differences in rock densities. This is carried-out by using a gravimeter, which is an instrument that measures variations in gravitational attraction over the surface of the earth. Five hundred and thirty-seven gravity readings (including base station readings) were collected along roads and accessible routes in the study area by using a CG-5 Scintrex Autograv Gravimeter. Gravity readings were collected at every one-third to one-fourth of a mile. The CG-5 Autograv instrument measures relative gravity readings of the earth’s gravitational fields. Geographical coordinates for each of the gravity station was determined with the aid of a Trimble NOMAD GPS unit. A Digital Elevation Model over the study area was generated from LiDAR data and this provided elevation values for each gravity stations. These elevation values were used for elevation corrections (free-air correction and Bouguer correction), which is an important aspect of gravity correction in creation of a Bouguer Anomaly map. Bouguer Anomaly reveals lateral variation in density of rocks at the subsurface. Two oval gravity low anomalies were found and interpreted as Hastings and Manvel Salt Domes. Data retrieved from the Texas Natural Resources Information System database revealed a series of normal faults within the area of the Hastings Salt Dome. Well log correlation, application of the concept of creekology, and a detailed gravity study accurately revealed the location and other physical characteristics of the Hastings Salt Dome. Well log correlation also revealed evidence of uplift of the overlying sedimentary beds over the Hastings Salt Dome. The flow pattern of the Clear Lake creek over Hastings Salt Dome supports the evidence of the presence of a subsurface feature. The Digital Elevation Model revealed surface imprints (isolated highs) associated with the presence of Blue Ridge, Pierce Junction and Webster salt domes but this was not observed over the Hastings Salt Dome. This study will ultimately lead to a better understanding of the size, geometry, depth and structure of the Hastings Salt Dome

The Design of an Integrated Crude Oil Distillation Column with Submerged Combustion Technology

Generally, Petroleum refineries are put in place to convert or refine unprocessed crude oil into more useful products using both physical separation and chemical conversion processes. Albeit, different refining unit are subsets of the physical separation category. The atmospheric and vacuum distillation unit seems to be more prominent. Conventionally, the crude atmospheric residue cannot be further heated in an atmospheric condition due to: coke formation, pipes plugging, thermal cracking and straining of the furnace. A vacuum distillation column is therefore required. Methods: This study, therefore, focuses on the limitations, “over straining of the furnace to provide the necessary heat” and “non-reliance on the additional re-boiler since it only acts as a heat exchanger”. An integrated distillation column with a capacity of 10,000 barrel per day was therefore designed for the concurrent production of all distillate cuts. Results: This was achieved through the introduction of a submerged combustion zone at the stripping section of the column where Naphtha was utilized as the source of fuel. Verification of this approach was also conducted using Autodesk invention software and a finite element analysis tool to evaluate both thermal and computational fluid analysis impact. Overall, all derived distilled products met the American Society for Testing and Material Standard Table 6

Abnormalities of semen parameters among male partners of infertile couples in a sub-urban tertiary hospital in Nigeria

Background: Infertility is a common reason for gynecological clinic visits in Nigeria. Men contribute significantly to the cause of infertility; however male factor infertility remain underreported compared to commonly reported female factor infertility. This study aimed to evaluate the abnormalities of semen parameters among male partners of infertile couples in Irrua Specialist Teaching Hospital in Edo State, Nigeria. Methods: A prospective cross-sectional study of 285 semen samples of male partners of infertile couples was conducted at Irrua specialist teaching hospital. The laboratory staff carried out analysis of the semen samples using set parameters outlined by the World Health Organization laboratory manual for the examination and processing of human semen. Socio-demographic data of the participants was also taken in a proforma. The data obtained was then analyzed with the Statistical Package for Social Sciences. Results: The age range of participants in this study was 20 to 65 years, with a mean age of 33.38 years. A total of 80.7% of the cases reviewed had one or more abnormal semen parameters. In 45.6%, 51.6%, and 47.0% of the analyzed samples, sperm cell count, morphology and total motility were below the WHO reference level, respectively. The severe forms of abnormal semen analysis findings detected in this study were asthenozoospermia (47%), oligozoospermia (15.8%), azoospermia (45.6%), and oligoasthenoteratozoospermia (15.5%). There was also statistically significant finding of rising cases of oligospermia with increasing age among the participants Conclusions: Male factor infertility although grossly under reported, contributes significantly to the burden of infertility in our setting. There is a need to raise awareness so that men are properly evaluated and treated

A Unified Approach to Demographic Data Collection for Research with Young Children Across Diverse Cultures

Culture is a key determinant of children’s development both in its own right and as a measure of generalizability of developmental phenomena. Studying the role of culture in development requires information about participants’ demographic backgrounds. However, both reporting and treatment of demographic data are limited and inconsistent in child development research. A barrier to reporting demographic data in a consistent fashion is that no standardized tool currently exists to collect these data. Variation in cultural expectations, family structures, and life circumstances across communities make the creation of a unifying instrument challenging. Here, we present a framework to standardize demographic reporting for early child development (birth to 3 years of age), focusing on six core sociodemographic construct categories: biological information, gestational status, health status, community of descent, caregiving environment, and socioeconomic status. For each category, we discuss potential constructs and measurement items and provide guidance for their use and adaptation to diverse contexts. These items are stored in an open repository of context-adapted questionnaires that provide a consistent approach to obtaining and reporting demographic information so that these data can be archived and shared in a more standardized format

A Unified Approach to Demographic Data Collection for Research with Young Children Across Diverse Cultures

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Sample template forms for demographic data collection

A unified approach to demographic data collection for research with young children across diverse cultures

Culture is a key determinant of children's development both in its own right and as a measure of generalizability of developmental phenomena. Studying the role of culture in development requires information about participants' demographic backgrounds. However, both reporting and treatment of demographic data are limited and inconsistent in child development research. A barrier to reporting demographic data in a consistent fashion is that no standardized tool currently exists to collect these data. Variation in cultural expectations, family structures, and life circumstances across communities make the creation of a unifying instrument challenging. Here, we present a framework to standardize demographic reporting for early child development (birth to 3 years of age), focusing on six core sociodemographic construct categories: biological information, gestational status, health status, community of descent, caregiving environment, and socioeconomic status. For each category, we discuss potential constructs and measurement items and provide guidance for their use and adaptation to diverse contexts. These items are stored in an open repository of context-adapted questionnaires that provide a consistent approach to obtaining and reporting demographic information so that these data can be archived and shared in a more standardized format. (PsycInfo Database Record (c) 2023 APA, all rights reserved)

A Unified Approach to Demographic Data Collection for Research with Young Children Across Diverse Cultures

Culture is a key determinant of children’s development both in its own right and for understanding the generalizability of developmental phenomena. Studying the role of culture in development requires information about participants’ demographic backgrounds. However, both reporting and treatment of demographic data are limited and inconsistent in child development research. A barrier to reporting demographic data in a consistent fashion is that no standardized tool currently exists to collect these data. Variation in cultural expectations, family structures, and life circumstances across communities make the creation of a unifying instrument challenging. Here, we present a framework to standardize demographic reporting for early child development (birth to 3 years of age), focusing on six sociodemographic construct categories: biological information, gestational status, health status, community of descent, caregiving environment, and socioeconomic status. For each, we discuss potential measurement items and provide guidance for their use and adaptation to different contexts. These items are stored in a repository of context-adapted questionnaires that provide a consistent approach to obtaining and reporting demographic information so that these data can be archived and shared in a more standardized format. The public significance of this work is to facilitate diversification of participants within developmental psychology by providing a framework for capturing demographic diversity

A unified approach to demographic data collection for research with young children across diverse cultures.

Culture is a key determinant of children’s development both in its own right and as a measure of generalizability of developmental phenomena. Studying the role of culture in development requires information about participants’ demographic backgrounds. However, both reporting and treatment of demographic data are limited and inconsistent in child development research. A barrier to reporting demographic data in a consistent fashion is that no standardized tool currently exists to collect these data. Variation in cultural expectations, family structures, and life circumstances across communities make the creation of a unifying instrument challenging. Here, we present a framework to standardize demographic reporting for early child development (birth to 3 years of age), focusing on six core sociodemographic construct categories: biological information, gestational status, health status, community of descent, caregiving environment, and socioeconomic status. For each category, we discuss potential constructs and measurement items and provide guidance for their use and adaptation to diverse contexts. These items are stored in an open repository of context-adapted questionnaires that provide a consistent approach to obtaining and reporting demographic information so that these data can be archived and shared in a more standardized format