What is the ideal number of vials of donor sperm to purchase for patients undergoing donor sperm intrauterine insemination (DIUI)?

Scale-free networks have several favorable properties as the topology of interconnection networks such as the short diameter and the quick message propagation. In this paper, we propose a method to construct scale-free networks in a semi-deterministic manner. The proposed algorithm extends the Bulut's algorithm for constructing scale-free networks with designated minimum degree k and maximum degree m, in such a way that: (1) it determines the ideal number of edges derived from the ideal degree distribution; and (2) after connecting each new node to k existing nodes as in the Bulut’s algorithm, it adjusts the number of edges to the ideal value by conducting add/removal of edges. We prove that such an adjustment is always possible if the number of nodes in the network exceeds [Formula: see text]. The performance of the algorithm is experimentally evaluated.

Download Full-text

Spatialization of Granulometric and Chemical Characteristics in Irrigated Hydromorphic Soil

Journal of Agricultural Studies ◽

10.5296/jas.v9i3.18802 ◽

2021 ◽

Vol 9 (3) ◽

pp. 153

Author(s):

Murilo Alceu de Águas ◽

Joaquim José Frazão ◽

Leonardo Mariano do Nascimento ◽

João Paulo Souza Carneiro ◽

Ariel Muncio Compagnon ◽

...

Keyword(s):

Spatial Dependence ◽

Soil Management ◽

Sampling Interval ◽

Hydromorphic Soil ◽

Ideal Number ◽

Chemical Attributes ◽

Granulometric Characteristics ◽

Agricultural Areas ◽

Composite Samples ◽

The Ideal

Lowlands represent a significant portion of agricultural areas in the world. Thus, understanding the spatial variability of the chemical and granulometric characteristics of hydromorphic soils can contribute to improving soil management and fertility. The objective of this work was to characterize spatial dependence, spatialized chemical attributes, granulometry, and the ideal number of samples in irrigated hydromorphic soil. Soil sampling was conducted in a grid of 10x10 m, in the layers of 0–0.1 and 0.1–0.2 m, totalling 432 composite samples. The evaluated attributes are as follows: pH in water, H+Al, SOM, Ca, Mg, Al, P, K, CTC, V%, Cu, Fe, Zn, Mn, clay, silt, and sand. The texture of the area was classified as loamy–sandy and free in the 0–0.1 and 0.1–0.2 m layers, respectively. The coefficient of variation of the attributes ranged from 2.71% (0–0.1m) to 149.07% (0.1–0.2m). All the attributes studied exhibited moderate to strong spatial dependence. The sample grid with a sampling interval of 20 m referring to the 0–0.1 m layer proved to be adequate. The ideal number of simple samples per composite is 19 for granulometry and macronutrients, and 28 for the micronutrients in the 0–0.1 m layer.

Download Full-text

Intrauterine insemination with frozen donor sperm: a prospective randomized trial comparing three different sperm preparation techniques**Presented in part at the 39th meeting of the Society for Gynecological Investigation, March 18 to 21, 1992.

Fertility and Sterility ◽

10.1016/s0015-0282(16)57015-0 ◽

1994 ◽

Vol 62 (4) ◽

pp. 850-856 ◽

Cited By ~ 13

Author(s):

William Byrd ◽

Erma Z. Drobnis ◽

William H. Kutteh ◽

Paul Marshburn ◽

Bruce R. Carr

Keyword(s):

Randomized Trial ◽

Intrauterine Insemination ◽

Prospective Randomized Trial ◽

Donor Sperm ◽

Sperm Preparation ◽

Preparation Techniques

Download Full-text

Male Infertility: Surgical Treatment (Varicocele, Microsurgical Reconstruction, TUR Ejaculatory Ducts)

10.2310/uro.11107 ◽

2019 ◽

Author(s):

Vanessa L. Dudley ◽

Marc Goldstein

Keyword(s):

Intrauterine Insemination ◽

Ejaculatory Duct ◽

Obstructive Azoospermia ◽

Male Factor Infertility ◽

Nonobstructive Azoospermia ◽

Male Factor ◽

Sperm Retrieval ◽

Donor Sperm ◽

Vitro Fertilization

Male factor infertility contributes to at least half of all cases of infertility in couples. The most common causes of male factor infertility are impaired sperm production due to varicoceles, obstruction of the ductal system, and genetic defects causing nonobstructive azoospermia. A majority of these underlying conditions are treatable. Even when in vitro fertilization with intracytoplasmic sperm injection (IVF-ICSI) is necessary, treatment of men has been shown to improve the outcomes of IVF-ICSI and potentially increase the chances of finding sperm with microdissection sperm extraction in some cases of nonobstructive azoospermia. Important advances in the field include abundant evidence now supporting microsurgical repair of varicocele in varicocele-associated nonobstructive azoospermia prior to IVF-ICSI or attempted surgical sperm retrieval. Advances in techniques for reconstruction of obstruction is dependent on the surgeon’s skill in creating a tension-free and leak-proof mucosa-to-mucosa accurate approximation with a good blood supply and healthy mucosa and muscularis and can result in higher patency rates. Treating the men often allows upgrading men from being solely candidates for donor sperm or adoption to candidates for ICF-ICSI with surgically retrieved testicular sperm to allowing IVF-ICSI with ejaculated sperm and from IVF-ICSI with ejaculated sperm to allowing the simpler intrauterine insemination and, finally, the possibility of a naturally conceived pregnancy. This review contains 27 figures, 1 table, and 69 references. Key Words: microsurgery, obstructive azoospermia, transurethral resection of the ejaculatory duct, varicocele, vasectomy reversal, vasoepididymostomy, vasography, vasovasostomy

Download Full-text

Identifying the Ideal Number Components of the Bayesian Principal Component Analysis Model for Missing Daily Precipitation Data Treatment

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.30.21992 ◽

2018 ◽

Vol 7 (4.30) ◽

pp. 5 ◽

Cited By ~ 1

Author(s):

Zun Liang Chuan ◽

Azlyna Senawi ◽

Wan Nur Syahidah Wan Yusoff ◽

Noriszura Ismail ◽

Tan Lit Ken ◽

...

Keyword(s):

Time Series ◽

Daily Precipitation ◽

Principal Component ◽

Precipitation Data ◽

Analysis Model ◽

Principal Component Analysis Model ◽

Data Treatment ◽

Daily Precipitation Data ◽

Ideal Number ◽

The Ideal

The grassroots of the presence of missing precipitation data are due to the malfunction of instruments, error of recording and meteorological extremes. Consequently, an effective imputation algorithm is indeed much needed to provide a high quality complete time series in assessing the risk of occurrence of extreme precipitation tragedy. In order to overcome this issue, this study desired to investigate the effectiveness of various Q-components of the Bayesian Principal Component Analysis model associates with Variational Bayes algorithm (BPCAQ-VB) in missing daily precipitation data treatment, which the ideal number of Q-components is identified by using The Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) algorithm. The effectiveness of BPCAQ-VB algorithm in missing daily precipitation data treatment is evaluated by using four distinct precipitation time series, including two monitoring stations located in inland and coastal regions of Kuantan district, respectively. The analysis results rendered the BPCA5-VB is superior in missing daily precipitation data treatment for the coastal region time series compared to the single imputation algorithms proposed in previous studies. Contrarily, the single imputation algorithm is superior in missing daily precipitation data treatment for an inland region time series rather than the BPCAQ-VB algorithm.

Download Full-text

The Role of Diploma I Cadastral Surveying and Mapping Program in Fulfilling the Needs of Cadastral Surveyor Assistant in Indonesia

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i2.29.14292 ◽

2018 ◽

Vol 7 (2.29) ◽

pp. 967

Author(s):

Nuraini Aisiyah ◽

Kusmiarto .

Keyword(s):

Land Registration ◽

Short Course ◽

Ideal Number ◽

Cadastral Surveying ◽

Mapping Program ◽

The Ideal ◽

Surveying And Mapping

This paper aims to describe the role of Diploma I Cadastral Surveying and Mapping Program of National Land College (DI PPK- STPN) in fulfilling the needs of Cadastral Surveyor Assistant in Indonesia. DI PPK-STPN was established in 1996 in Yogyakarta with the aim to meet the needs of Cadastral Surveyor Assistant in Adjudication Program. Previously, in Indonesia, the candidate of Cadastral Surveyor Assistant was educated through the short course program. The method is descriptive, informative, which describes ability and competence owned by alumni of Diploma I PPK-STPN. Identification of the number of alumni of Diploma I PPK-STPN can describe the number of Cadastral Surveyor Assistant of Indonesia. By looking at the number of alumni of Diploma I PPK-STPN, we can see the level of adequacy of the needs of Cadastral Surveyor Assistant in the acceleration program of land registration in Indonesia. To achieve the ideal number of Cadastral Surveyor Assistant in Indonesia, the existence of DI PPK-STPN is still needed.

Download Full-text

Trichogramma galloi and Trichogramma pretiosum for the management of Duponchelia fovealis (Lepidoptera: Crambidae) in strawberry plants

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2017000800015 ◽

2017 ◽

Vol 52 (8) ◽

pp. 690-693 ◽

Cited By ~ 2

Author(s):

Victor Dias Pirovani ◽

Dirceu Pratissoli ◽

Marcel Oliveira Tibúrcio ◽

José Romário de Carvalho ◽

Alixelhe Pacheco Damascena ◽

...

Keyword(s):

Surface Area ◽

Leaf Surface ◽

Fragaria X Ananassa ◽

Trichogramma Pretiosum ◽

Field Release ◽

Leaf Surface Area ◽

Egg Parasitism ◽

Ideal Number ◽

Strawberry Cultivar ◽

The Ideal

Abstract: The objective of this work was to determine the ideal number for field release of Trichogramma galloi and T.pretiosum for controlling Duponchelia fovealis (Lepidoptera: Crambidae) in strawberry (Fragaria x ananassa). The experiment was carried out in a greenhouse, where the strawberry cultivar 'Oso Grande' was infected with 100 eggs of D.fovealis distributed on the leaf surface area of each plant. A total of 1, 2, 4, 8, 16, 32, 64, and 128 female parasitoids were released per egg of D. fovealis. The greatest level of egg parasitism, with no differences for the species of Trichogramma, was observed at the densities of four and eight parasitoids per egg of D.fovealis, considered ideal for field release.

Download Full-text