A High-Order EMSIW MIMO Antenna for Space-Constrained 5G Smartphone

This paper proposes a high-order MIMO antenna operating at 3.5 GHz for a 5G new radio. Using an eighth-mode substrate integrated waveguide (EMSIW) cavity and considering a typical smartphone scenario, a two-element MIMO antenna is developed and extended to a twelve-element MIMO. These MIMO elements are closely spaced, and by employing multiple diversity techniques, high isolation is achieved without using a decoupling network. The asymmetric EMSIW structures resulted in radiation pattern diversity, and their orthogonal placement provides polarization diversity. The radiation characteristics and diversity performance are parametrically optimized for a two-element MIMO antenna. The experimental results exhibited 6.0 dB and 10.0 dB bandwidths of 250 and 100 MHz, respectively. The measured and simulated radiation patterns are closely matched with a peak gain of 3.4 dBi and isolation ≥36 dB. Encouraged with these results, higher-order MIMO, namely, four- and twelve-element MIMO are investigated, and isolation ≥35 and ≥22 dB are achieved, respectively. The channel capacity is found equal to 56.37 bps/Hz for twelve-element MIMO, which is nearly 6.25 times higher than the two-element counterpart. The hand and head proximity analysis reveal that the proposed antenna performances are within the acceptable limit. A detailed comparison with the previous works demonstrates that the proposed antenna offers a simple, low-cost, and compact MIMO antenna design solution with a high diversity performance.

The Influence Strategies of Interviewees Suspected of Controlling or Coercive Behavior

This research examines how suspects attempt to influence interviewers during investigative interviews. Twenty-nine interview transcripts with suspects accused of controlling or coercive behavior within intimate relationships were submitted to a thematic analysis to build a taxonomy of influence behavior. The analysis classified 18 unique suspect behaviors: the most common behaviors were using logical arguments (17% of all observed behaviors), denial or denigration of the victim (12%), denial or minimization of injury (8%), complete denials (7%), and supplication (6%). Suspects’ influence behaviors were mapped along two dimensions: power, ranging from low (behaviors used to alleviate investigative pressure) to high (behaviors used to assert authority), and interpersonal alignment, ranging from instrumental (behaviors that relate directly to evidence) to relational (behaviors used to bias interviewer perceptions of people and evidence). Proximity analysis was used to examine co-occurrence of influence behaviors. This analysis highlighted combinations of influence behaviors that illustrate how different behaviors map onto different motives, for example shifting attributions from internal to external to the suspect, or to use admissions strategically alongside denials to mitigate more serious aspects of an allegation. Our findings draw together current theory to provide a framework for understanding suspect influence behaviors in interviews.

De-novo chromosome level assembly of plant genomes from long read sequence data

SummaryRecent advances in the sequencing and assembly of plant genomes have allowed the generation of genomes with increasing contiguity and sequence accuracy. The chromosome level assembly of the contigs generated from long read sequencing has involved the use of proximity analysis (Hi-C) or traditional genetic maps to guide the placement of sequence contigs within chromosomes. The development of highly accurate long reads by repeated sequencing of circularized DNA (PacBio HiFi) has greatly increased the size of contigs. We now report the use of HiFiasm to assemble the genome of Macadamia jansenii. a genome that has been used as model to test sequencing and assembly. This achieved almost complete chromosome level assembly from the sequence data alone without the need for higher level chromosome map information. Eight of the 14 chromosomes were represented by a single large contig and the other 6 assembled into 2-4 main contigs. The small number of chromosome breaks appear to be due to highly repetitive regions of ribosomal genes that cannot be assembled by these approaches. De novo assembly of near complete chromosome level plant genomes now seems possible using these sequencing and assembly tools. Further targeted strategies might allow these remaining gaps to be closed.Significance statement (of up to two sentences)De novo assembly of near complete chromosome level plant genomes is now possible using current long read sequencing and assembly tools.

The spread of the cult of Asclepius in the context of the Roman army benefited from the presence of physicians: A spatial proximity analysis

The article applies a GIS based approach to the study of the spread of the cult of Asclepius, the Greco-Roman healing god, during the Roman period. It explores the role of soldiers and physicians in the spatial dissemination of the cult along the transportation network of Roman roads in the border provinces of Britannia, Germania Superior and Inferior, Raetia, Noricum, Pannonia Superior and Inferior, Moesia Superior and Inferior, and Dacia. These provinces were selected as a suitable area for quantitative GIS exploration because they were all on the outer border of the Roman Empire, had a significant military presence, and there is a representative amount of inscriptions attested that can be used as proxies for the spatial occurrence of the three measured variables: the cult of Asclepius, Roman soldiers, and Roman physicians. After establishing by means of spatial proximity analysis that the cult of Asclepius occurred frequently in the context of the Roman army, the article proposes and quantitatively evaluates a more specific hypothesis; i.e., that the spatial occurrences of Roman physicians in inscriptions are a relevant predictor for the spatial occurrences of the worship of Asclepius in the environment of the Roman army because of the shared focus between physicians and the cult of Asclepius—health and medicine. The highly significant results of the statistical analysis reveal a positive trend in the spatial relationships between Roman physicians and the worship of Asclepius in the context of the Roman army in the majority of provinces of interest, thus supporting the proposed hypothesis. The results presented in the article demonstrate the potential of the GIS approach in testing assumptions produced by traditional scholarship and in nuancing our understanding of a specific process of cultural spread.

Geography of Educational Institutions: Geospatial method in identifying Educational Deserts and Oasis-A Case study

<i>Many studies have pointed out that the learner’s choice in opting a programme or the institution of study is largely driven by the institution’s geographic proximity. By assigning a constant buffer radius (geographic reach) for every institution, proximity analysis demarcates regions of lower and higher number of institutional choices available for a learner belonging to that region. Such geographic regions of educational deserts and educational oasis have been identified with respect to institutions of arts and science undergraduate programmes in the state of Kerala. The understanding of the relationship between the geography and the density of educational intuitions in a region will assist the educational planners and administrators and particularly beneficial in learner or parent perspective</i>

Geography of Educational Institutions: Geospatial method in identifying Educational Deserts and Oasis-A Case study

<i>Many studies have pointed out that the learner’s choice in opting a programme or the institution of study is largely driven by the institution’s geographic proximity. By assigning a constant buffer radius (geographic reach) for every institution, proximity analysis demarcates regions of lower and higher number of institutional choices available for a learner belonging to that region. Such geographic regions of educational deserts and educational oasis have been identified with respect to institutions of arts and science undergraduate programmes in the state of Kerala. The understanding of the relationship between the geography and the density of educational intuitions in a region will assist the educational planners and administrators and particularly beneficial in learner or parent perspective</i>

GIS MODELING OF WASTE CONTAINERS’ PLACEMENT IN URBAN AREAS

As a result of this research, a methodical approach to the geoinformational analysis of the waste containers’ placement for the collection of municipal solid waste in urban areas according to current standards and rules for the improvement of settlements was developed. According to the current Rules of maintenance of residential buildings and adjacent territories, waste containers of all types should be installed on a concrete or asphalted site, usually with fencing made of standard reinforced concrete products or other materials with planted shrubs around the site. Moreover, container platforms on wheels should be equipped with a ramp from the roadway and a fence (curb) which is 7–10 cm high, to keep the containers from rolling off to the sides. In the process of determining the optimal locations of waste containers a database of container park was created including the register of containers, the register of platforms, and the register of trash cans was created a list of influencing factors at the data collection stage, was made a proximity analysis and data reclassification to move to a unified scale for calculations of different types and/or heterogeneous source data, and weighted overlay as the main instrument of aggregated analysis. The analysis of the results is based on comparing the location of existing waste container sites with the resulting overlapping areas.